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Apollo vs N1-L3 Apollo CSM / LM vs L3 Lunar Complex Credit: © Mark Wade. 11,521 bytes. 621 x 332 pixels. |
Research on 1-million-pound thrust plus engine begun at Rocketdyne, the feasibility of which was established in March 1955.
The feasibility of a million-pound-thrust liquid-fueled rocket engine established by the Rocketdyne Division of North American Aviation, Inc.
First U.S.-built complete liquid-rocket engine having a thrust in excess of 400,000 pounds was fired for the first time at Santa Susana, Calif.
Rocket test stand capable of testing engines to 1 million pounds thrust activated at Edwards AFB, which became operational in March 1957.
The U.S. Army Ballistic Missile Agency, Redstone Arsenal, Ala., began studies of a large clustered-engine booster to generate 1.5 million pounds of thrust, as one of a related group of space vehicles. During 1957-1958, approximately 50,000 man-hours were expended in this effort.
Von Braun produces 'Proposal for a National Integrated Missile and Space Vehicle Development Plan'. First mention of 1,500,000 lbf booster (Saturn I)
A greatly expanded NACA program of space flight research was proposed in a paper, "A Program for Expansion of NACA Research in Space Flight Technology," written principally by senior engineers of the Lewis Aeronautical Laboratory under the leadership of Abe Silverstein. The goal of the program would be "to provide basic research in support of the development of manned satellites and the travel of man to the moon and nearby planets." The cost of the program was estimated at $241 million per year above the current NACA budget.
The U.S. Air Force contracted with NAA, Rocketdyne Division, for preliminary design of a single-chamber, kerosene and liquid-oxygen rocket engine capable of 1 to 1.5 million pounds of thrust. During the last week in July, Rocketdyne was awarded the contract to develop this engine, designated the F-1.
ARPA gives Von Braun team contract to develop Saturn I (called 'cluster's last stand' due to design concept).
Rocketdyne Division of North American announced an Air Force contract for a 1-million-pound thrust engine.
The Advanced Research Projects Agency ARPA provided the Army Ordnance Missile Command (AOMC) with authority and initial funding to develop the Juno V (later named Saturn launch vehicle. ARPA Order 14 described the project: "Initiate a development program to provide a large space vehicle booster of approximately 1.5 million pounds of thrust based on a cluster of available rocket engines. The immediate goal of this program is to demonstrate a full-scale captive dynamic firing by the end of calendar year 1959." Within AOMC, the Juno V project was assigned to the Army Ballistic Missile Agency at Redstone Arsenal Huntsville, Ala.
Saturn design studies authorized to proceed at Redstone Arsenal for development of 1.5-million-pound-thrust cluster first stage.
A letter contract was signed by NASA with NAA's Rocketdyne Division for the development of the H-1 rocket engine, designed for use in a clustered-engine booster.
Pioneer I, intended as a lunar probe, was launched by a Thor-Able rocket from the Atlantic Missile Range, with the Air Force acting as executive agent to NASA. The 39-pound instrumented payload did not reach escape velocity.
The Stever Committee, which had been set up on January 12, submitted its report on the civilian space program to NASA. Among the recommendations:
NASA requested DX priority for 1.5-million-pound-thrust F-1 engine project and Project Mercury.
A contract was signed by the University of Manchester, Manchester, England, and the Air Force (AF 61(052)-168) for $21,509. Z. Kopal, principal investigator, was to provide topographical information on the lunar surface for production of accurate lunar maps.
The Space Task Group (STG) was officially organized at Langley Field, Va., to implement the manned satellite project (later Project Mercury), NASA Administrator T. Keith Glennan had approved the formation of the Group, which had been working together for some months, on October 7. Its members were designated on November 3 by Robert R. Gilruth, Project Manager, and authorization was given by Floyd L. Thompson, Acting Director of Langley Research Center. STG would report directly to NASA Headquarters.
Secretary of the Army Wilber M. Brucker and NASA Administrator T. Keith Glennan signed cooperative agreements concerning NASA, Jet Propulsion Laboratory, Army Ordnance Missile Command AOMC, and Department of the Army relationships. The agreement covering NASA utilization of the von Braun team made "the AOMC and its subordinate organizations immediately, directly, and continuously responsive to NASA requirements."
Von Braun briefs NASA on plans for booster development at Huntsville with objective of manned lunar landing. Initally proposed using 15 Juno V (Saturn I) boosters to assemble 200,000 kg payload in earth orbit for direct landing on moon.
NASA awarded contract to Rocketdyne of North American to build single-chamber 1.5-million-pound-thrust rocket engine.
Representatives of Advanced Research Projects Agency, the military services, and NASA met to consider the development of future launch vehicle systems. Agreement was reached on the principle of developing a small number of versatile launch vehicle systems of different thrust capabilities, the reliability of which could be expected to be improved through use by both the military services and NASA.
The H-1 engine successfully completed its first full-power firing at NAA's Rocketdyne facility in Canoga Park, Calif.
Rocketdyne demonstrated 1-million-pound-thrust liquid-propellant rocket combustion chamber at full power.
In a staff report of the House Select Committee on Astronautics and Space Exploration, Wernher von Braun of the Army Ballistic Missile Agency predicted manned circumlunar flight within the next eight to ten years and a manned lunar landing and return mission a few years thereafter. Administrator T. Keith Glennan, Deputy Administrator Hugh L. Dryden, Abe Silverstein, John P. Hagen, and Homer E. Newell, all of NASA, also foresaw manned circumlunar flight within the decade as well as instrumented probes soft-landed on the moon. Roy K. Knutson, Chairman of the Corporate Space Committee, NAA, projected a manned lunar landing expedition for the early 1970's with extensive unmanned instrumented soft lunar landings during the last half of the 1960's.
The Army Ordnance Missile Command (AOMC), the Air Force, and missile contractors presented to the ARPA-NASA Large Booster Review Committee their views on the quickest and surest way for the United States to attain large booster capability. The Committee decided that the Juno V approach advocated by AOMC was best and NASA started plans to utilize the Juno V booster.
NASA signed a definitive contract with Rocketdyne Division, NAA, for $102 million covering the design and development of a single-chamber, liquid-propellant rocket engine in the 1- to l.5-million-pound-thrust class (the F-1, to be used in the Nova superbooster concept). NASA had announced the selection of Rocketdyne on December 12.
After consultation and discussion with DOD, NASA formulated a national space vehicle program. The central idea of the program was that a single launch vehicle should be developed for use in each series of future space missions. The launch vehicle would thus achieve a high degree of reliability, while the guidance and payload could be varied according to purpose of the mission. Four general-purpose launch vehicles were described: Vega, Centaur, Saturn, and Nova. The Nova booster stage would be powered by a cluster of four F-1 engines, the second stage by a single F-1, and the third stage would be the size of an intercontinental ballistic missile but would use liquid hydrogen as a fuel. This launch vehicle would be the first in a series that could transport a man to the lunar surface and return him safely to earth in a direct ascent mission. Four additional stages would be required in such a mission.
The Army proposed that the name of the large clustered-engine booster be changed from Juno V to Saturn, since Saturn was the next planet after Jupiter. Roy W. Johnson, Director of the Advanced Research Projects Agency, approved the name on February 3.
Maj. Gen. John B. Medaris of the Army Ordnance Missile Command (AOMC) and Roy W. Johnson of the Advanced Research Projects Agency (ARPA) discussed the urgency of early agreement between ARPA and NASA on the configuration of the Saturn upper stages. Several discussions between ARPA and NASA had been held on this subject. Johnson expected to reach agreement with NASA the following week. He agreed that AOMC would participate in the overall upper stage planning to ensure compatibility of the booster and upper stages.
A Working Group on Lunar Exploration was established by NASA at a meeting at Jet Propulsion Laboratory (JPL). Members of NASA, JPL, Army Ballistic Missile Agency, California Institute of Technology, and the University of California participated in the meeting. The Working Group was assigned the responsibility of preparing a lunar exploration program, which was outlined: circumlunar vehicles, unmanned and manned; hard lunar impact; close lunar satellites; soft lunar landings (instrumented). Preliminary studies showed that the Saturn booster with an intercontinental ballistic missile as a second stage and a Centaur as a third stage, would be capable of launching manned lunar circumnavigation spacecraft and instrumented packages of about one ton to a soft landing on the moon.
NASA issues plan for development in next decade of Vega (later cancelled as too similar to Agena), Centaur, Saturn, and Nova launch vehicles. Juno V renamed Saturn I.
Roy W. Johnson, Director of the Advanced Research Projects Agency (ARPA), testified before the House Committee on Science and Astronautics that DOD and ARPA had no lunar landing program. Herbert F. York, DOD Director of Defense Research and Engineering, testified that exploration of the moon was a NASA responsibility.
In testimony before the Senate Committee on Aeronautical and Space Sciences, Deputy Administrator Hugh L. Dryden and DeMarquis D. Wyatt described the long-range objectives of the NASA space program: an orbiting space station with several men, operating for several days; a permanent manned orbiting laboratory; unmanned hard-landing and soft-landing lunar probes; manned circumlunar flight; manned lunar landing and return; and, ultimately, interplanetary flight.
H. Kurt Strass and Leo T. Chauvin of STG proposed a heatshield test of a fullscale Mercury spacecraft at lunar reentry speeds. This test, in which the capsule would penetrate the earth's radiation belt, was called Project Boomerang. An advanced version of the Titan missile was to be the launch vehicle. The project was postponed and ultimately dropped because of cost.
The thrust chamber of the F-1 engine was successfully static-fired at the Santa Susana Air Force-Rocketdyne Propulsion Laboratory in California. More than one million pounds of thrust were produced, the greatest amount attained to that time in the United States.
The Army Ordnance Missile Command (AOMC) submitted the "Saturn System Study" which had been requested by the Advanced Research Projects Agency ARPA on December 18, 1958. From the 1375 possible configurations screened, and the 14 most promising given detailed study, the Atlas and Titan families were selected as the most attractive for upper staging. Either the 120-inch or the 160inch diameter was acceptable. The study included the statement: "An immediate decision by ARPA as to choice of upper stages on the first generation vehicle is mandatory if flight hardware is to be available to meet the proposed Saturn schedule."
John W. Crowley, Jr., NASA Director of Aeronautical and Space Research, notified the Ames, Lewis, and Langley Research Centers, the High Speed Flight Station (later Flight Research Center), the Jet Propulsion Laboratory, and the Office of Space Flight Development that a Research Steering Committee on Manned Space Flight would be formed. Harry J. Goett of Ames was to be Chairman of the Committee, which would assist NASA Headquarters in carrying out its responsibilities in long-range planning and basic research on manned space flight.
The advanced manned space program to follow Project Mercury was discussed at a NASA Staff Conference held in Williamsburg, Va. Three reasons for such a program were suggested:
NASA Administrator T. Keith Glennan requested $3 million for research into rendezvous techniques as part of the NASA budget for Fiscal Year 1960. In subsequent hearings, DeMarquis D. Wyatt, Assistant to the NASA Director of Space Flight Development, explained that these funds would be used to resolve certain key problems in making space rendezvous practical. Among these were the establishment of referencing methods for fixing the relative positions of two vehicles in space; the development of accurate, lightweight target-acquisition equipment to enable the supply craft to locate the space station; the development of very accurate guidance and control systems to permit precisely determined flight paths; and the development of sources of controlled power.
Testifying before the House Committee on Science and Astronautics, Francis B. Smith, Chief of Tracking Programs for NASA, described the network of stations necessary for tracking a deep-space probe on a 24-hour basis. The stations should be located about 120 degrees apart in longitude. In addition to the Goldstone, Calif., site, two other locations had been selected: South Africa and Woomera, Australia.
Members of the new Research Steering Committee on Manned Space Flight were nominated by the Ames, Lewis, and Langley Research Centers, the High Speed Flight Station (HSFS) (later Flight Research Center), the Jet Propulsion Laboratory (JPL), the Office of Space Flight Development OSFD), and the Office of Aeronautical and Space Research (OASR). They were: Alfred J. Eggers, Jr. (Ames); Bruce T. Lundin (Lewis); Laurence K. Loftin, Jr. (Langley); De E. Beeler (HSFS); Harris M. Schurmeier (JPL); Maxime A. Faget (STG) ; George M. Low of NASA Headquarters OSFD) ; and Milton B. Ames, Jr. (part-time) (OASR).
In response to a request by the DOD-NASA) Saturn Ad Hoc Committee, the Army Ordnance Missile Command (AOMC) sent a supplement to the "Saturn System Study" to the Advanced Research Projects Agency ARPA describing the use of Titan for Saturn upper stages.
The Army Ordnance Missile Command submitted to NASA a report entitled "Preliminary Study of an Unmanned Lunar Soft Landing Vehicle," recommending the use of the Saturn booster.
The first Rocketdyne H-1 engine for the Saturn arrived at the Army Ballistic Missile Agency (ABMA ). The H-1 engine was installed in the ABMA test stand on May 7, first test-fired on May 21, and fired for 80 seconds on May 29. The first long-duration firing - 151.03 seconds - was on June 2.
NASA created a committee to study problems of long-range lunar exploration to be headed by Dr. Robert Jastrow.
Milton W. Rosen of NASA Headquarters proposed a plan for obtaining high-resolution photographs of the moon. A three-stage Vega would place the payload within a 500-mile diameter circle on the lunar surface. A stabilized retrorocket fired at 500 miles above the moon would slow the instrument package sufficiently to permit 20 photographs to be transmitted at a rate of one picture per minute.
The first meeting of the Research Steering Committee on Manned Space Flight was held at NASA Headquarters. Members of the Committee attending were: Harry J. Goett, Chairman; Milton B. Ames, Jr. (part-time); De E. Beeler; Alfred J. Eggers, Jr.; Maxime A. Faget; Laurence K. Loftin, Jr.; George M. Low; Bruce T. Lundin; and Harris M. Schurmeier. Observers were John H. Disher, Robert M. Crane, Warren J. North, Milton W. Rosen (part-time), and H. Kurt Strass.
The purpose of the Committee was to take a long-term look at man-in-space problems, leading eventually to recommendations on future missions and on broad aspects of Center research programs to ensure that the Centers were providing proper information. Committee investigations would range beyond Mercury and Dyna-Soar but would not be overly concerned with specific vehicular configurations. The Committee would report directly to the Office of Aeronautical and Space Research.
![]() | LM vs LK - US Lunar Module compared to Soviet LK lunar lander Credit: © Mark Wade. 8,634 bytes. 663 x 315 pixels. |
Tentative manned space flight priorities were established by the Research Steering Committee: Project Mercury, ballistic probes, environmental satellite, maneuverable manned satellite, manned space flight laboratory, lunar reconnaissance satellite, lunar landing, Mars Venus reconnaissance, and Mars-Venus landing. The Committee agreed that each NASA Center should study a manned lunar landing and return mission, the study to include the type of propulsion, vehicle configuration, structure, anti guidance requirements. Such a mission was an end objective; it did not have to be supported on the basis that it would lead to a more useful end. It would also focus attention at the Centers on the problems of true space flight.
ABMA static fired a single H-1 Saturn engine at Redstone Arsenal, Ala.
Director Robert R. Gilruth met with members of his STG staff (Paul E. Purser, Charles J. Donlan, James A. Chamberlin, Raymond L. Zavasky, W. Kemble Johnson, Charles W. Mathews, Maxime A. Faget, and Charles H. Zimmeman) and George M. Low from NASA Headquarters to discuss the possibility of an advanced manned spacecraft.
A report entitled "Recoverable Interplanetary Space Probe" was issued at the direction of C. Stark Draper, Director of the Instrumentation Laboratory, MIT. Several organizations had participated in this study, which began in 1957.
Construction of the first Saturn launch area, Complex 34, began at Cape Canaveral, FIa.
At an STG staff meeting, Director Robert R. Gilruth suggested that study should be made of a post-Mercury program in which maneuverable Mercury spacecraft would make land landings in limited areas.
NASA authorized $150,000 for Army Ordnance Missile Command studies of a lunar exploration program based on Saturn-boosted systems. To be included were circumlunar vehicles, unmanned and manned; close lunar orbiters; hard lunar impacts; and soft lunar landings with stationary or roving payloads.
Members of STG - including H. Kurt Strass, Robert L. O'Neal, Lawrence W. Enderson, Jr., and David C. Grana - and Thomas E. Dolan of Chance Vought Corporation worked on advanced design concepts of earth orbital and lunar missions. The goal was a manned lunar landing within ten years, rather than an advanced Mercury program.
Members of the Research Steering Committee determined the study and research areas which would require emphasis for manned flight to and from the moon and for intermediate flight steps:
At the second meeting of the Research Steering Committee on Manned Space Flight, held at the Ames Research Center, members presented reports on intermediate steps toward a manned lunar landing and return.
Bruce T. Lundin of the Lewis Research Center reported to members on propulsion requirements for various modes of manned lunar landing missions, assuming a 10,000-pound spacecraft to be returned to earth. Lewis mission studies had shown that a launch into lunar orbit would require less energy than a direct approach and would be more desirable for guidance, landing reliability, etc. From a 500,000 foot orbit around the moon, the spacecraft would descend in free fall, applying a constant-thrust decelerating impulse at the last moment before landing. Research would be needed to develop the variable-thrust rocket engine to be used in the descent. With the use of liquid hydrogen, the launch weight of the lunar rocket and spacecraft would be 10 to 11 million pounds.
A report on a projected manned space station was made to the Research Steering Committee by Laurence K. Loftin, Jr., of the Langley Research Center. In discussion, Chairman Harry J. Goett expressed his opinion that consideration of a space laboratory ought to be an integral and coordinated part of the planning for the lunar landing mission. George M. Low of NASA Headquarters warned that care should be exercised to assure that each step taken toward the goal of a lunar landing was significant, since the number of steps that could be funded was extremely limited.
Alfred J. Eggers, Jr., of the Ames Research Center told the members of the Research Steering Committee of studies on radiation belts, graze and orbit maneuvers on reentry, heat transfer, structural concepts and requirements, lift over drag considerations, and guidance systems which affected various aspects of the manned lunar mission. Eggers said that Ames had concentrated on a landing maneuver involving a reentry approach over one of the poles to lessen radiation exposure, a graze through the outer edge of the atmosphere to begin an earth orbit, and finally reentry and landing.
The Advanced Research Projects Agency (ARPA) directed the Army Ordnance Missile Command to proceed with the static firing of the first Saturn vehicle, the test booster SA-T, in early calendar year 1960 in accordance with the $70 million program and not to accelerate for a January 1960 firing. ARPA asked to be informed of the scheduled firing date.
Meetings of the STG New Projects Panel to discuss an advanced manned space flight program.
The STG New Projects Panel (proposed by H. Kurt Strass in June) held its first meeting to discuss NASA's future manned space program. Present were Strass, Chairman, Alan B. Kehlet, William S. Augerson, Jack Funk, and other STG members. Strass summarized the philosophy behind NASA's proposed objective of a manned lunar landing : maximum utilization of existing technology in a series of carefully chosen projects, each of which would provide a firm basis for the next step and be a significant advance in its own right.
At its second meeting, STG's New Projects Panel decided that the first major project to be investigated would be the second-generation reentry capsule. The Panel was presented a chart outlining the proposed sequence of events for manned lunar mission system analysis. The target date for a manned lunar landing was 1970.
A House Committee Staff Report stated that lunar flights would originate from space platforms in earth orbit according to current planning. The final decision on the method to be used, "which must be made soon," would take into consideration the difficulty of space rendezvous between a space platform and space vehicles as compared with the difficulty of developing single vehicles large enough to proceed directly from the earth to the moon.
McDonnell Aircraft Corporation reported to NASA the results of several company-funded studies of follow-on experiments using Mercury spacecraft with heatshields modified to withstand lunar reentry conditions. In one experiment, a Centaur booster would accelerate a Mercury spacecraft plus a third stage into an eccentric earth orbit with an apogee of about 1,200 miles, so that the capsule would reenter at an angle similar to that required for reentry from lunar orbit. The third stage would then fire, boosting the spacecraft to a speed of 36,000 feet per second as it reentered the atmosphere.
A study of the guidance and control design for a variety of space missions began at the MIT Instrumentation Laboratory under a NASA contract.
The ARPA-NASA Booster Evaluation Committee appointed by Herbert F. York, DOD Director of Defense Research and Engineering, April 15, 1959, convened to review plans for advanced launch vehicles. A comparison of the Saturn (C-1) and the Titan-C boosters showed that the Saturn, with its substantially greater payload capacity, would be ready at least one year sooner than the Titan-C. In addition, the cost estimates on the Titan-C proved to be unrealistic. On the basis of the Advanced Research Projects Agency presentation, York agreed to continue the Saturn program but, following the meeting, began negotiations with NASA Administrator T. Keith Glennan to transfer the Army Ballistic Missile Agency (and, therefore, Saturn ) to NASA.
At the third meeting of STG's New Projects Panel, Alan B. Kehlet presented suggestions for the multimanned reentry capsule. A lenticular-shaped vehicle was proposed, to ferry three occupants safely to earth from a lunar mission at a velocity of about 36,000 feet per second.
After a meeting with officials concerned with the missile and space program, President Dwight D. Eisenhower announced that he intended to transfer to NASA control the Army Ballistic Missile Agency's Development Operations Division personnel and facilities. The transfer, subject to congressional approval, would include the Saturn development program.
President Eisenhower announced his intention of transferring the Saturn project to NASA, which became effective on March 15, 1960.
At an STG meeting, it was decided to begin planning of advanced spacecraft systems. Three primary assignments were made:
In a memorandum to the members of the Research Steering Committee on Manned Space Flight, Chairman Harry J. Goett discussed the increased importance of the weight of the "end vehicle" in the lunar landing mission. This was to be an item on the agenda of the third meeting of the Committee, to be held in early December. Abe Silverstein, Director of the NASA Office of Space Flight Development, had recently mentioned to Goett that a decision would be made within the next few weeks on the configuration of successive generations of Saturn, primarily the upper stages, Silverstein and Goett had discussed the Committee's views on a lunar spacecraft. Goett expressed the hope in the memorandum that members of the Committee would have some specific ideas at their forthcoming meeting about the probable weight of the spacecraft.
In addition, Goett informed the Committee that the Vega had been eliminated as a possible booster for use in one of the intermediate steps leading to the lunar mission. The primary possibility for the earth satellite mission was now the first-generation Saturn and for the lunar flight the second-generation Saturn.
While awaiting the formal transfer of the Saturn program, NASA formed a study group to recommend upper-stage configurations. Membership was to include the DOD Director of Defense Research and Engineering and personnel from NASA, Advanced Research Projects Agency, Army Ballistic Missile Agency, and the Air Force. This group was later known both as the Saturn Vehicle Team and the Silverstein Committee (for Abe Silverstein, Chairman).
The initial plan for transferring the Army Ballistic Missile Agency and Saturn to NASA was drafted. It was submitted to President Dwight D. Eisenhower on December 1 1 and was signed by Secretary of the Army Wilber M. Brucker and Secretary of the Air Force James H. Douglas on December 16 and by NASA Administrator T. Keith Glennan on December 17.
The Advanced Research Projects Agency ARPA and NASA requested the Army Ordnance Missile Command AOMC to prepare an engineering and cost study for a new Saturn configuration with a second stage of four 20,000-pound-thrust liquid-hydrogen and liquid-oxygen engines (later called the S-IV stage) and a modified Centaur third stage using two of these engines later designated the S-V stage).
At the third meeting of the Research Steering Committee on Manned Space Flight held at Langley Research Center, H. Kurt Strass reported on STG's thinking on steps leading to manned lunar flight and on a particular capsule-laboratory spacecraft. The project steps beyond Mercury were: radiation experiments, minimum space and reentry vehicle (manned), temporary space laboratory (manned), lunar data acquisition (unmanned), lunar circumnavigation or lunar orbiter (unmanned), lunar base supply (unmanned), and manned lunar landing. STG felt that the lunar mission should have a three-man crew. A configuration was described in which a cylindrical laboratory was attached to the reentry capsule. This laboratory would provide working space for the astronauts until it was jettisoned before reentry. Preliminary estimates put the capsule weight at about 6,600 pounds and the capsule plus laboratory at about 10,000 pounds.
H. H. Koelle told members of the Research Steering Committee of mission possibilities being considered at the Army Ballistic Missile Agency. These included an engineering satellite, an orbital return capsule, a space crew training vehicle, a manned orbital laboratory, a manned circumlunar vehicle, and a manned lunar landing and return vehicle. He described the current Saturn configurations, including the "C" launch vehicle to be operational in 1967. The Saturn C (larger than the C-1) would be able to boost 85,000 pounds into earth orbit and 25,000 pounds into an escape trajectory.
Several possible configurations for a manned lunar landing by direct ascent being studied at the Lewis Research Center were described to the Research Steering Committee by Seymour C. Himmel. A six-stage launch vehicle would be required, the first three stages to boost the spacecraft to orbital speed, the fourth to attain escape speed, the fifth for lunar landing, and the sixth for lunar escape with a 10,000-pound return vehicle. One representative configuration had an overall height of 320 feet. H. H. Koelle of the Army Ballistic Missile Agency argued that orbital assembly or refueling in orbit (earth orbit rendezvous) was more flexible, more straightforward, and easier than the direct ascent approach. Bruce T. Lundin of the Lewis Research Center felt that refueling in orbit presented formidable problems since handling liquid hydrogen on the ground was still not satisfactory. Lewis was working on handling cryogenic fuels in space.
Committee formed to recommend post-Mercury space program. After four meetings, and studying earth-orbit assembly using Saturn II or direct ascent using Nova, tended to back development of Nova.
NASA team completed study design of upper stages of Saturn launch vehicle.
In a memorandum to Don R. Ostrander, Director of Office of Launch Vehicle Programs, and Abe Silverstein, Director of Office of Space Flight Programs, NASA Associate Administrator Richard E. Horner described the proposed Space Exploration Program Council, which would be concerned primarily with program development and implementation. The Council would be made up of the Directors of the Jet Propulsion Laboratory, the Goddard Space Flight Center, the Army Ballistic Missile Agency, the Office of Space Flight Programs, and the Office of Launch Vehicle Programs. Horner would be Chairman of the Council which would have its first meeting on January 28-29, 1960 (later changed to February 10-11, 1960).
NASA accepted the recommendations of the Saturn Vehicle Evaluation Committee Silverstein Committee on the Saturn C-1 configuration and on a long-range Saturn program. A research and development plan of ten vehicles was approved. The C-1 configuration would include the S-1 stage (eight H-1 engines clustered, producing 1.5 million pounds of thrust), the S-IV stage (four engines producing 80,000 pounds of thrust), and the S-V stage two engines producing 40,000 pounds of thrust.
President Dwight D. Eisenhower directed NASA Administrator T. Keith Glennan "to make a study, to be completed at the earliest date practicable, of the possible need for additional funds for the balance of FY 1960 and for FY 1961 to accelerate the super booster program for which your agency recently was given technical and management responsibility."
In testimony before the House Committee on Science and Astronautics, Richard E. Horner, Associate Administrator of NASA, presented NASA's ten-year plan for 1960-1970. The essential elements had been recommended by the Research Steering Committee on Manned Space Flight. NASA's Office of Program Planning and Evaluation, headed by Homer J. Stewart, formalized the ten-year plan.
On February 19, NASA officials again presented the ten-year timetable to the House Committee. A lunar soft landing with a mobile vehicle had been added for 1965. On March 28, NASA Administrator T. Keith Glennan described the plan to the Senate Committee on Aeronautical and Space Sciences. He estimated the cost of the program to be more than $1 billion in Fiscal Year 1962 and at least $1.5 billion annually over the next five years, for a total cost of $12 to $15 billion.
The Chance Vought Corporation completed a company-funded, independent, classified study on manned lunar landing and return (MALLAR), under the supervision of Thomas E. Dolan. Booster limitations indicated that earth orbit rendezvous would be necessary. A variety of lunar missions were described, including a two-man, 14-day lunar landing and return. This mission called for an entry vehicle of 6,600 pounds, a mission module of 9,000 pounds, and a lunar landing module of 27,000 pounds. It incorporated the idea of lunar orbit rendezvous though not specifically by name.
At a luncheon in Washington, Abe Silverstein, Director of the Office of Space Flight Programs, suggested the name "Apollo" for the manned space flight program that was to follow Mercury. Others at the luncheon were Don R. Ostrander from NASA Headquarters and Robert R. Gilruth, Maxime A. Faget, and Charles J. Donlan from STG.
The Army Ballistic Missile Agency submitted to NASA the study entitled "A Lunar Exploration Program Based Upon Saturn-Boosted Systems." In addition to the subjects specified in the preliminary report of October 1, 1959, it included manned lunar landings.
The first meeting of the NASA Space Exploration Council was held at NASA Headquarters. The objective of the Council was "to provide a mechanism for the timely and direct resolution of technical and managerial problems . . . common to all NASA Centers engaged in the space flight program."
Study issued by Huntsville of lunar landing alternatives using Saturn systems. Huntsville transferred from Army to NASA. Vought study on modular approach to lunar landing. Internally NASA decides on lunar landing as next objective after Mercury.
Eleven companies submitted contract proposals for the Saturn second stage (S-IV): Bell Aircraft Corporation; The Boeing Airplane Company; Chrysler Corporation; General Dynamics Corporation, Convair Astronautics Division; Douglas Aircraft Company, Inc.; Grumman Aircraft Engineering Corporation; Lockheed Aircraft Corporation; The Martin Company; McDonnell Aircraft Corporation; North American Aviation, Inc.; and United Aircraft Corporation.
![]() | Apollo CSM Credit: © Mark Wade. 7,033 bytes. 561 x 304 pixels. |
NASA established the Office of Life Sciences Programs with Clark T. Randt as Director. The Office would assist in the fields of biotechnology and basic medical and behavioral sciences. Proposed biological investigations would include work on the effects of space and planetary environments on living organisms, on evidence of extraterrestrial life forms, and on contamination problems. In addition, the Office would arrange grants and contracts and plan a life sciences research center.
At a NASA staff conference at Monterey, Calif., officials discussed the advanced manned space flight program, the elements of which had been presented to Congress in January. The Goddard Space Flight Center was asked to define the basic assumptions to be used by all groups in the continuing study of the lunar mission. Some problems already raised were: the type of heatshield needed for reentry and tests required to qualify it, the kind of research and development firings, and conditions that would be encountered in cislunar flight.
STG formulated preliminary guidelines by which an "advanced manned spacecraft and system" would be developed. These guidelines were further refined and elaborated; they were formally presented to NASA Centers during April and May.
The Army Ballistic Missile Agency's Development Operations Division and the Saturn program were transferred to NASA after the expiration of the 60-day limit for congressional action on the President's proposal of January 14. (The President's decision had been made on October 21, 1959.) By Executive Order, the President named the facilities the "George C. Marshall Space Flight Center." Formal transfer took place on July 1.
Thomas E. Dolan of the Chance Vought Corporation prepared a company-funded design study of the lunar orbit rendezvous method for accomplishing the lunar landing mission.
Two of Saturn's first-stage engines passed initial static firing test of 7.83 seconds duration at Huntsville, Ala.
STG's Robert O. Piland, during briefings at NASA Centers, presented a detailed description of the guidelines for missions, propulsion, and flight time in the advanced manned spacecraft program:
Presentation by STG members of the guidelines for an advanced manned spacecraft program to NASA Centers.
Members of STG presented guidelines for an advanced manned spacecraft program to NASA Centers to enlist research assistance in formulating spacecraft and mission design.
To open these discussions, Director Robert R. Gilruth summarized the guidelines: manned lunar reconnaissance with a lunar mission module, corollary earth orbital missions with a lunar mission module and with a space laboratory, compatibility with the Saturn C-1 or C-2 boosters (weight not to exceed 15,000 pounds for a complete lunar spacecraft and 25,000 pounds for an earth orbiting spacecraft), 14-day flight time, safe recovery from aborts, ground and water landing and avoidance of local hazards, point (ten square-mile) landing, 72-hour postlanding survival period, auxiliary propulsion for maneuvering in space, a "shirtsleeve" environment, a three-man crew, radiation protection, primary command of mission on board, and expanded communications and tracking facilities. In addition, a tentative time schedule was included, projecting multiman earth orbit qualification flights beginning near the end of the first quarter of calendar year 1966.
In discussing the advanced manned spacecraft program at NASA Centers, Maxime A. Faget of STG detailed the guidelines for aborted missions and landing:
Stanley C. White of STG outlined at NASA Centers the guidelines for human factors in the advanced manned spacecraft program:
Command and communications guidelines for the advanced manned spacecraft program were listed by STG's Robert G. Chilton at NASA Centers:
John C. Houbolt of the Langley Research Center presented a paper at the National Aeronautical Meeting of the Society of Automotive Engineers in New York City in which the problems of rendezvous in space with the minimum expenditure of fuel were considered.
Four of the eight H-1 engines of the Saturn C-1 first-stage booster were successfully static-fired at Redstone Arsenal for seven seconds.
Briefings on the guidelines for the advanced manned spacecraft program were presented by STG representatives at NASA Headquarters.
STG members, visiting Moffett Field, Calif., briefed representatives of the Jet Propulsion Laboratory, Flight Research Center, and Ames Research Center on the advanced manned spacecraft program. Ames representatives then described work at their Center which would be applicable to the program: preliminary design studies of several aerodynamic configurations for reentry from a lunar trajectory, guidance and control requirements studies, potential reentry heating experiments at near-escape velocity, flight simulation, and pilot display and navigation studies. STG asked Ames to investigate heating and aerodynamics on possible lifting capsule configurations. In addition, Ames offered to tailor a payload applicable to the advanced program for a forthcoming Wallops Station launch.
In a memorandum to NASA Administrator T. Keith Glennan, Robert L. King, Executive Secretary of the Space Exploration Program Council (SEPC), reported on the status of certain actions taken up at the first meeting of the Council:
Members of STG visited the Flight Research Center to be briefed on current effort and planned activities there. Of special interest were possibilities of the Flight Research Center's conducting research on large parachutes in cooperation with Ames Research Center, analytical and simulator studies of pilot control of launch vehicles, and full-scale tests of landing capabilities of low lift over drag configurations.
NASA announced the selection of the Douglas Aircraft Company to build the second stage (S-IV) of the Saturn C-1 launch vehicle.
At Redstone Arsenal, all eight H-1 engines of the first stage of the Saturn C-1 launch vehicle were static-fired simultaneously for the first time and achieved 1.3 million pounds of thrust.
A study report was issued by the MIT Instrumentation Laboratory on guidance and control design for a variety of space missions. This report, approved by C. Stark Draper, Director of the Laboratory, showed that a vehicle, manned or unmanned, could have significant onboard navigation and guidance capability.
Members of STG presented the proposed advanced manned spacecraft program to Wernher von Braun and 25 of his staff at Marshall Space Flight Center. During the ensuing discussion, the merits of a completely automatic circumlunar mission were compared with those of a manually operated mission. Further discussions were scheduled.
STG members presented the proposed advanced manned spacecraft program to the Lewis Research Center staff. Work at the Center applicable to the program included: analysis and preliminary development of the onboard propulsion system, trajectory analysis, and development of small rockets for midcourse and attitude control propulsion.
Robcrt R. Gilruth, Paul E. Purser, James A. Chamberlin, Maxime A. Faget, and H. Kurt Strass of STG met with a group from the Grumman Aircraft Engineering Corporation to discuss advanced spacecraft programs. Grumman had been working on guidance requirements for circumlunar flights under the sponsorship of the Navy and presented Strass with a report of this work.
A discussion on the advanced manned spacecraft program was held at the Langley Research Center with members of STG and Langley Research Center, together with George M. Low and Ernest O. Pearson, Jr., of NASA Headquarters and Harry J. Goett of Goddard Space Flight Center. Floyd L. Thompson, Langley Director, said that Langley would be studying the radiation problem, making configuration tests (including a lifting Mercury) , and studying aerodynamics, heating, materials, and structures.
The consensus of the meeting was that the rendezvous technique would be essential in the foreseeable future and that experiments should be made to establish feasibility and develop the technique. There was as yet no funding for my rendezvous flight test program.
STG formed the Advanced Vehicle Team, reporting directly to Robert R. Gilruth, Director of the Mercury program. The Team would conduct research and make preliminary design studies for an advanced multiman spacecraft.
Eight H-1 engines of the first stage of the Saturn C-1 launch vehicle were static-fired for 35.16 seconds, producing 1.3 million pounds of thrust. This first public demonstration of the H-1 took place at Marshall Space Flight Center.
Assembly of the first Saturn flight booster, SA-1, began at Marshall Space Flight Center.
NASA selected Rocketdyne Division of NAA to develop the J-2, a 200,000-pound-thrust rocket engine, burning liquid hydrogen and liquid oxygen. (A decision was later made to use the J-2 in the upper stages of the Saturn C-5.)
Complete eight-engine static firing of Saturn successfully conducted for 110 seconds at MSFC, the longest firing to date.
The Saturn C-1 first stage successfully completed its first series of static tests at the Marshall Space Flight Center with a 122-second firing of all eight H-1 engines.
H. Kurt Strass of STG and John H. Disher of NASA Headquarters proposed that boilerplate Apollo spacecraft be used in some of the forthcoming Saturn C-1 hunches. (Boilerplates are research and development vehicles which simulate production spacecraft in size, shape, structure, mass, and center of gravity.) These flight tests would provide needed experience with Apollo systems and utilize the Saturn boosters effectively. Four or five such tests were projected. On October 5, agreement was reached between members of Marshall Space Flight Center and STG on tentative Saturn vehicle assignments and flight plans.
Robert O. Piland, Head of the STG Advanced Vehicle Team, and Stanley C. White of STG attended a meeting in Washington, D. C., sponsored by the NASA Office of Life Sciences Programs, to discuss radiation and its effect on manned space flight. Their research showed that it would be impracticable to shield against the inner Van Allen belt radiation but possible to shield against the outer belt with a moderate amount of protection.
The House Committee on Science and Astronautics declared: "A high priority program should be undertaken to place a manned expedition on the moon in this decade. A firm plan with this goal in view should be drawn up and submitted to the Congress by NASA. Such a plan, however, should be completely integrated with other goals, to minimize total costs. The modular concept deserves close study. Particular attention should be paid immediately to long lead-time phases of such a program." The Committee also recommended that development of the F-1 engine be expedited in expectation of the Nova launch vehicle, that there be more research on nuclear engines and less conventional engines before freezing the Nova concept, and that the Orion project be turned over to NASA. It was the view of the Committee that "NASA's 10-year program is a good program, as far as it goes, but it does not go far enough. Furthermore the space program is not being pushed with sufficient energy."
The third meeting of the Space Exploration Program Council was held at NASA Headquarters. The question of a speedup of Saturn C-2 production and the possibility of using nuclear upper stages with the Saturn booster were discussed. The Office of Launch Vehicle Programs would plan a study on the merits of using nuclear propulsion for some of NASA's more sophisticated missions. If the study substantiated such a need, the amount of in-house basic research could then be determined.
NASA Director of Space Flight Programs Abe Silverstein notified Harry J. Goett, Director of the Goddard Space Flight Center, that NASA Administrator T. Keith Glennan had approved the name "Apollo" for the advanced manned space flight program. The program would be so designated at the forthcoming NASA-Industry Program Plans Conference.
The first NASA-Industry Program Plans Conference was held in Washington, D.C. The purpose was to give industrial management an overall picture of the NASA program and to establish a basis for subsequent conferences to be held at various NASA Centers. The current status of NASA programs was outlined, including long-range planning, launch vehicles, structures and materials research, manned space flight, and life sciences.
NASA Deputy Administrator Hugh L. Dryden announced that the advanced manned space flight program had been named "Apollo." George M. Low, NASA Chief of Manned Space Flight, stated that circumlunar flight and earth orbit missions would be carried out before 1970. This program would lead eventually to a manned lunar landing and a permanent manned space station.
Name 'Apollo' selected by Silverstein. Conference with aerospace industry outlined NASA's plans for circumlunar and lunar flight.
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In a memorandum to Abe Silverstein, Director of NASA's Office of Space Flight Programs, Harry J. Goett, Director of Goddard Space Flight Center, outlined the tentative program of the Goddard industry conference to be held on August 30. At this conference, more details of proposed study contracts for an advanced manned spacecraft would be presented. The requirements would follow the guidelines set down by STG and presented to NASA Headquarters during April and May. Three six-month study contracts at $250,000 each would be awarded.
Secretary of the Interior Fred A. Seaton and Secretary of the Army Wilber M. Brucker announced that the U.S. Geological Survey had completed the first known photogeological survey of the surface of the moon.
Army announced completion of a project for mapping lunar landing sites.
The Goddard Space Flight Center GSFC conducted its industry conference in Washington, D.C., presenting details of GSFC projects, current and future. The objectives of the proposed six-month feasibility contracts for an advanced manned spacecraft were announced.
In an organizational change within STG, Maxime A. Faget was appointed Chief of the Flight Systems Division and Robert O. Piland was named Assistant Chief for Advanced Projects. The Apollo Project Office was formed with Piland as Head of the Office; members included John B. Lee, J. Thomas Markley, William W. Petynia,and H. Kurt Strass.
NASA Administrator T. Keith Glennan directed that an accelerated joint planning effort be made by persons at NASA Headquarters who were most familiar with the Saturn, Apollo, manned orbital laboratory, and unmanned lunar and planetary programs. They were to determine whether the Saturn and Saturn-use programs were effectively integrated and whether sufficient design study and program development work had been done to support decisions on projected Saturn configurations.
A NASA contract for approximately $44 million was signed by Rocketdyne Division of NAA for the development of the J-2 engine.
A formal agreement was signed by the United States and South Africa providing for the construction of a new deep-space tracking facility at Krugersdorp, near Johannesburg. It would be one of three stations equipped to maintain constant contact with lunar and planetary spacecraft.
Bidder's conference for circumlunar Apollo. Specification: Saturn C-2 compatability (6,800 kg mass for circumlunar mission); 14 day flight time; three-man crew in shirt-sleeve environment.
An STG briefing was held at Langley Field, Va., for prospective bidders on three six-month feasibility studies of an advanced manned spacecraft as part of the Apollo program. A formal Request for Proposal was issued at the conference.
Charles J. Donlan of STG, Chairman of the Evaluation Board which would consider contractors' proposals on feasibility studies for an advanced manned spacecraft, invited the Directors of Ames Research Center, Jet Propulsion Laboratory, Flight Research Center, Lewis Research Center, Langley Research Center, and Marshall Space Flight Center to name representatives to the Evaluation Board. The first meeting was to be held on October 10 at Langley Field, Va.
The fourth meeting of the Space Exploration Program Council was held at NASA Headquarters. The results of a study on Saturn development and utilization was presented by the Ad Hoc Saturn Study Committee. Objectives of the study were to determine (1) if and when the Saturn C-2 launch vehicle should be developed and (2) if mission and spacecraft planning was consistent with the Saturn vehicle development schedule. No change in the NASA Fiscal Year 1962 budget was contemplated. The Committee recommended that the Saturn C-2 development should proceed on schedule (S-II stage contract in Fiscal Year 1962, first flight in 1965). The C-2 would be essential, the study reported, for Apollo manned circumlunar missions, lunar unmanned exploration, Mars and Venus orbiters and capsule landers, probes to other planets and out-of- ecliptic, and for orbital starting of nuclear upper stages.
Members were appointed to the Technical Assessment Panels and the Evaluation Board to consider industry proposals for Apollo spacecraft feasibility studies. Members of the Evaluation Board were: Charles J. Donlan (STG), Chairman; Maxime A. Faget (STG) ; Robert O. Piland (STG), Secretary; John H. Disher (NASA Headquarters Office of Space Flight Programs); Alvin Seiff (Ames); John V. Becker (Langley); H. H. Koelle (Marshall); Harry J. Goett (Goddard), ex officio; and Robert R. Gilruth (STG), ex officio.
Members of STG visited the Marshall Space Flight Center to discuss possible Saturn and Apollo guidance integration and potential utilization of Apollo onboard propulsion to provide a reserve capability. Agreement was reached on tentative Saturn vehicle assignments on abort study and lunar entry simulation; on the use of the Saturn guidance system; and on future preparations of tentative flight plans for Saturns SA-6, 8, 9, and 10.
Contractors' proposals on feasibility studies for an advanced manned spacecraft were received by STG. Sixty-four companies expressed interest in the Apollo program, and of these 14 actually submitted proposals: The Boeing Airplane Company; Chance Vought Corporation; Convair/Astronautics Division of General Dynamics Corporation; Cornell Aeronautical Laboratory, Inc.; Douglas Aircraft Company; General Electric Company; Goodyear Aircraft Corporation; Grumman Aircraft Engineering Corporation; Guardite Division of American Marietta Company; Lockheed Aircraft Corporation; The Martin Company; North American Aviation, Inc.; and Republic Aviation Corporation. These 14 companies, later reduced to 12 when Cornell and Guardite withdrew, were subsequently invited to submit prime contractor proposals for the Apollo spacecraft development in 1961. The Technical Assessment Panels began evaluation of contractors' proposals on October 10.
In a memorandum to Abe Silverstein, Director of NASA's Office of Space Flight Programs, George M. Low, Chief of Manned Space Flight, described the formation of a working group on the manned lunar landing program: "It has become increasingly apparent that a preliminary program for manned lunar landings should be formulated. This is necessary in order to provide a proper justification for Apollo, and to place Apollo schedules and technical plans on a firmer foundation.
"In order to prepare such a program, I have formed a small working group, consisting of Eldon Hall, Oran Nicks, John Disher, and myself. This group will endeavor to establish ground rules for manned lunar landing missions; to determine reasonable spacecraft weights; to specify launch vehicle requirements; and to prepare an integrated development plan, including the spacecraft, lunar landing and takeoff system, and launch vehicles. This plan should include a time-phasing and funding picture, and should identify areas requiring early studies by field organizations."
The Technical Assessment Panels presented to the Evaluation Board their findings on the contractors' proposals for feasibility studies of an advanced manned spacecraft. On October 24, the Evaluation Board findings and recommendations were presented to the STG Director.
A staff meeting of STG's Flight Systems Division was held to fix additional design constraints for the in- house design study of the Apollo spacecraft.
Fundamental decisions were made as a result of this and a previous meeting on September 20.
Included in the current Saturn flight schedule were: mid-1961, begin first-stage flights with dummy upper stages; early 1963, begin two-stage flights; late 1963, begin three-stage flights; early 1964, conclude ten-vehicle research and development flight test program.
NASA selected three contractors to prepare individual feasibility studies of an advanced manned spacecraft as part of Project Apollo. The contractors were Convair/Astronautics Division of General Dynamics Corporation, General Electric Company, and The Martin Company.
From 16 bids, Convair, General Electric, and Martin selected to conduct $250,000 study contracts. Meanwhile Space Task Group Langley undertakes its own studies, settling on Apollo CM configuration as actually built by October 1960.
Representatives of the General Electric Company, The Martin Company, and Convair/Astronautics Division of General Dynamics Corporation visited STG to conduct negotiations on the Apollo systems study contracts announced on October 25. The discussions clarified or identified areas not completely covered in company proposals. Contracts were awarded on November 15.
Key staff members of NASA Headquarters and the Commander, U.S. Air Force Research and Development Command, met at the Air Force Ballistic Missile Division, Los Angeles, Calif., to attend briefings and discuss matters of mutual concern.
At an executive session, Air Force and NASA programs of orbital rendezvous, refueling, and descent from orbit were discussed. Long-range Air Force studies on a lunar base were in progress as well as research on more immediate missions, such as rendezvous by an unmanned satellite interceptor for inspection purposes, manned maintenance satellites, and reentry methods. NASA plans for the manned lunar landing mission included the possible use of the Saturn booster in an orbital staging operation employing orbital refueling. Reentry studies beyond Mercury were concentrated on reentry at escape speeds and on a spacecraft configuration capable of aerodynamic maneuvering during reentry.
Lunar atlas prepared for USAF by group under technical direction of G. P. Kuiper was released, an "Orthographic Atlas of the Moon" charted 5,000 base points combined with best available photos and grids.
The Department of the Interior announced that the U.S. Geological Survey would undertake detailed studies of lunar geology as part of a new $205,000 program in astrogeology financed by NASA.
At a meeting, Charles J. Donlan of STG and George M. Low, John H. Disher, Milton W. Rosen, and Elliott Mitchell, all of NASA Headquarters, discussed a plan to set up informal technical liaison groups to broaden the base for inter-Center information exchange on the Apollo program with particular reference to onboard propulsion.
STG formulated a plan for the proposed Apollo Technical Liaison Groups. These Groups were to effect systematic liaison in technical areas related to the Apollo project. The objectives and scope of the plan were as follows:
Charles J. Donlan, Associate Director of STG, invited Langley, Ames, Lewis, and Flight Research Centers, Marshall Space Flight Center, and Jet Propulsion Laboratory to participate in Technical Liaison Groups in accordance with the plan drawn up on November 16.
STG held a meeting at Goddard Space Flight Center to discuss a proposed contract with MIT Instrumentation Laboratory for navigation and guidance support for Project Apollo. The proposed six-month contract for $100,000 might fund studies through the preliminary design stage but not actual hardware. Milton B. Trageser of the Instrumentation Laboratory presented a draft work statement which divided the effort into three parts: midcourse guidance, reentry guidance, and a satellite experiment feasibility study using the Orbiting Geophysical Observatory. STG decided that the Instrumentation Laboratory should submit a more detailed draft of a work statement to form the basis of a contract. In a discussion the next day, Robert G. Chilton of STG and Trageser clarified three points:
A joint briefing on the Apollo and Saturn programs was held at Marshall Space Flight Center MSFC, attended by representatives of STG and MSFC. Maxime A. Faget of STG and MSFC Director Wernher von Braun agreed that a joint STG-MSFC program would be developed to accomplish a manned lunar landing. Areas of responsibility were: MSFC launch vehicle and landing on the moon; STG - lunar orbit, landing, and return to earth.
Smith J. DeFrance, Director of the Ames Research Center, designated Ames working members on six of the nine Apollo Technical Liaison Groups. They were Stanley F. Schmidt (Trajectory Analysis), Clarence A. Syvertson (Configurations and Aerodynamics), G. Allen Smith (Guidance and Control), Glen Goodwin (Heating), Charles A. Hermach (Structures and Materials), and Harald S. Smedal (Human Factors).
Eugene J. Manganiello, Associate Director of the Lewis Research Center, appointed Lewis members to six of the Apollo Technical Liaison Groups. They were Seymour C. Himmel (Trajectory Analysis), Jack B. Esgar (Structures and Materials), Robert E. Tozier (Instrumentation and Communications), Robert F. Seldon (Human Factors), Robert R. Goodman (Mechanical Systems), and Edmund R. Jonash (Onboard Propulsion).
Representatives of Marshall Space Flight Center (MSFC) were assigned to eight of the nine Apollo Technical Liaison Groups by H. H. Koelle, Director, Future Projects Office, MSFC. They were Rudolph F. Hoelker (Trajectory Analysis), Edward L. Linsley (Configurations and Aerodynamics), Werner K. Dahm and Harvey A. Connell (Heating), Erich E. Goerner (Structures and Materials), David M. Hammock and Alexander A. McCool (Onboard Propulsion), Heinz Kampmeier (Instrumentation and Communications), Wilbur G. Thornton (Guidance and Control), and Herman F. Beduerftig (Mechanical Systems). Dual representation on two of the Groups would be necessary because of the division of technical responsibilities within MSFC.
The Director of the Flight Research Center, Paul F. Bikle, nominated Flight Research Center members to eight of the nine Apollo Technical Liaison Groups. They were Donald R. Bellman (Trajectory Analysis), Hubert M. Drake (Configurations and Aerodynamics), Euclid C. Holleman (Guidance and Control), Thomas V. Cooney (Heating), Kenneth C. Sanderson (Instrumentation and Communications), Milton O. Thompson (Human Factors), Perry V. Row (Mechanical Systems) , and Norman E. DeMar (Onboard Propulsion).
A meeting was held by representatives of STG and the MIT Lincoln Laboratory to discuss the scope of the studies to be performed by the Lincoln Laboratory on the ground instrumentation system for the Apollo program. The discussion centered about the draft work statement prepared by STG. In general, those at the meeting agreed that Lincoln Laboratory should conduct an overall analysis of the requirements for the ground system, leading to the formulation of a general systems concept. The study should be completed by the end of December 1961, with interim results available in the middle of 1961 .
First of new series of static firings of Saturn considered only 50 percent successful in 2-second test at MSFC.
Milton B. Trageser of MIT Instrumentation Laboratory transmitted to Charles J. Donlan of STG the outline of a study program on the guidance aspects of Project Apollo. He outlined what might be covered by a formal proposal on the Apollo spacecraft guidance and navigation contract discussed by STG and Instrumentation Laboratory representatives on November 22.
The first technical review of the General Electric Company Apollo feasibility study was held at the contractor's Missile and Space Vehicle Department. Company representatives presented reports on the study so that STG representatives might review progress, provide General Electric with pertinent information from NASA or other sources, and discuss and advise as to the course of the study.
Floyd L. Thompson, Director of the Langley Research Center, assigned Langley members to eight of the Apollo Technical Liaison Groups. They were William H. Michael, Jr. (Trajectory Analysis), Eugene S. Love (Configurations and Aerodynamics), John M. Eggleston (Guidance and Control), Robert L. Trimpi
(Heating), Roger A. Anderson (Structures and Materials), Wilford E. Sivertson, Jr. (Instrumentation and Communications), David Adamson (Human Factors), and Joseph G. Thibodaux, Jr. (Onboard Propulsion).
The Martin Company presented the first technical review of its Apollo feasibility study to STG officials in Baltimore, Md. At the suggestion of STG, Martin agreed to reorient the study in several areas: putting more emphasis on lunar orbits, putting man in the system, and considering landing and recovery in the initial design of the spacecraft.
Brian O. Sparks, Deputy Director of the Jet Propulsion Laboratory (JPL), designated JPL members to serve on six of the nine Apollo Technical Liaison Groups. They were Victor C. Clarke, Jr. (Trajectory Analysis), Edwin Pounder (Configurations and Aerodynamics), James D. Acord (Guidance and Control), John W. Lucas (Heating), William J. Carley (Structures and Materials), and Duane F. Dipprey (Onboard Propulsion),
Representatives of the Langley Research Center briefed members of STG on the lunar orbit method of accomplishing the lunar landing mission.
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Convair/Astronautics Division of the General Dynamics Corporation held its first technical review of the Apollo feasibility study in San Diego, Calif. Brief presentations were made by contractor and subcontractor technical specialists to STG representatives. Convair/Astronautics' first approach was oriented toward the modular concept, but STG suggested that the integral spacecraft concept should be investigated.
Associate Administrator of NASA Robert C. Seamans, Jr., and his staff were briefed by Langley Research Center personnel on the rendezvous method as it related to the national space program. Clinton E. Brown presented an analysis made by himself and Ralph W. Stone, Jr., describing the general operational concept of lunar orbit rendezvous for the manned lunar landing. The advantages of this plan in contrast with the earth orbit rendezvous method, especially in reducing launch vehicle requirements, were illustrated. Others discussing the rendezvous were John C. Houbolt, John D. Bird, and Max C. Kurbjun.
The MIT Instrumentation Laboratory submitted a formal proposal to NASA for a study of a navigation and guidance system for the Apollo spacecraft.
The Grumman Aircraft Engineering Corporation began work on a company- funded lunar orbit rendezvous feasibility study.
During a meeting of the Space Exploration Program Council at NASA Headquarters, the subject of a manned lunar landing was discussed. Following presentations on earth orbit rendezvous (Wernher von Braun, Director of Marshall Space Flight Center), lunar orbit rendezvous (John C. Houbolt of Langley Research Center), and direct ascent (Melvyn Savage of NASA Headquarters), the Council decided that NASA should not follow any one of these specific approaches, but should proceed on a broad base to afford flexibility. Another outcome of the discussion was an agreement that NASA should have an orbital rendezvous program which could stand alone as well as being a part of the manned lunar program. A task group was named to define the elements of the program insofar as possible. Members of the group were George M. Low, Chairman, Eldon W. Hall, A. M. Mayo, Ernest O. Pearson, Jr., and Oran W. Nicks, all of NASA Headquarters; Maxime A. Faget of STG; and H. H. Koelle of Marshall Space Flight Center. This group became known as the Low Committee.
The Manned Lunar Landing Task Group (Low Committee) set up by the Space Exploration Program Council was instructed to prepare a position paper for the NASA Fiscal Year 1962 budget presentation to Congress. The paper was to be a concise statement of NASA's lunar program for Fiscal Year 1962 and was to present the lunar mission in term of both direct ascent and rendezvous. The rendezvous program would be designed to develop a manned spacecraft capability in near space, regardless of whether such a technique would be needed for manned lunar landing. In addition to answering such questions as the reason for not eliminating one of the two mission approaches, the Group was to estimate the cost of the lunar mission and the date of its accomplishment, though not in specific terms. Although the decision to land a man on the moon had not been approved, it was to be stressed that the development of the scientific and technical capability for a manned lunar landing was a prime NASA goal, though not the only one. The first meeting of the Group was to be held on January 9.
First meetings of the Apollo Technical Liaison Groups, formed to coordinate NASA inter-Center information exchange.
Three of the Apollo Technical Liaison Groups held their first meetings at STG (Instrumentation and Communications, Mechanical Systems, and Onboard Propulsion.
The Group for Instrumentation and Communications discussed a set of working guidelines on spacecraft instrumentation and communications, tracking considerations, and deep-space communication requirements. Progress of the three Apollo feasibility study contracts was reviewed and the proposed MIT Lincoln Laboratory study on a systems concept for the ground instrumentation and tracking required for the Apollo mission was discussed. Reports of studies were given by members from the NASA Centers. The Group recommendations were :
At the first meeting of the Manned Lunar Landing Task Group, Associate Administrator Robert C. Seamans, Jr., Director of the Office of Space Flight Programs Abe Silverstein, and Director of the Office of Advanced Research Programs Ira H. Abbott outlined the purpose of the Group to the members. After a discussion of the instructions, the Group considered first the objectives of the total NASA program:
Representatives of STG visited Convair Astronautics Division of the General Dynamics Corporation to monitor the Apollo feasibility study contract. The meeting consisted of several individual informal discussions between the STG and Convair specialists on configurations and aerodynamics, heating, structures and materials, human factors, trajectory analysis, guidance and control, and operation implementation.
A conference was held at the Langley Research Center between representatives of STG and Langley to discuss the feasibility of incorporating a lunar orbit rendezvous phase into the Apollo program. Attending the meeting for STG were Robert L. O'Neal, Owen E. Maynard, and H. Kurt Strass, and for the Langley Research Center, John C. Houbolt, Clinton E. Brown, Manuel J. Queijo, and Ralph W. Stone, Jr. The presentation by Houbolt centered on a performance analysis which showed the weight saving to be gained by the lunar rendezvous technique as opposed to the direct ascent mode. According to the analysis, a saving in weight of from 20 to 40 percent could be realized with the lunar orbit rendezvous technique.
John Blake of the Air Force Aeronautical Chart and Information Center (ACIC) described to STG representatives the progress made by ACIC in mapping the moon. Lunar maps to the scale of 1: 5,000,000 and 1: 10,000,000 were later requested and received by STG. In addition, the first two sheets of a projected 144 sheet map coverage of the lunar surface on a 1:1,000,000 scale were forwarded to STG by the Center.
J. Thomas Markley of the Apollo Spacecraft Project Office reported to Associate Director of STG Charles J. Donlan that an informal briefing had been given to the Saturn Guidance Committee on the Apollo program. The Committee had been formed by Don R. Ostrander, NASA Director of the Office of Launch Vehicle Programs, to survey the broad guidance and control requirements for Saturn. The Committee was to review Marshall Space Flight Center guidance plans, review plans of mission groups who intended to use Saturn, recommend an adequate guidance system for Saturn, and prepare a report of the evaluation and results during January. Members of STG, including Robert O. Piland, Markley, and Robert G. Chilton, presented summaries of the overall Apollo program and guidance requirements for Apollo.
Three of the Apollo Technical Liaison Groups (Trajectory Analysis, Heating, and Human Factors) held their first meetings at the Ames Research Center.
After reviewing the status of the contractors' Apollo feasibility studies, the Group on Trajectory Analysis discussed studies being made at NASA Centers. An urgent requirement was identified for a standard model of the Van Allen radiation belt which could be used in all trajectory analysis related to the Apollo program,
The Group on Heating, after consideration of NASA and contractor studies currently in progress, recommended experimental investigation of control surface heating and determination of the relative importance of the unknowns in the heating area by relating estimated "ignorance" factors to resulting weight penalties in the spacecraft. The next day, three members of this Group met for further discussions and two areas were identified for more study: radiant heat inputs and their effect on the ablation heatshield, and methods of predicting heating on control surfaces, possibly by wind tunnel tests at high Mach numbers.
The Group on Human Factors considered contractors' studies and investigations being done at NASA Centers. In particular, the Group discussed the STG document, "Project Apollo Life Support Programs," which proposed 41 research projects. These projects were to be carried out by various organizations, including NASA, DOD, industry, and universities. Medical support experience which might be applicable to Apollo was also reviewed.
President-elect John F. Kennedy released a report made to him by his Ad Hoc Committee on Space named to review the U.S. space and missile programs and identify personnel, technical, or administrative problems which would require the prompt attention of the Kennedy Administration. The Committee, whose chairman was Jerome B. Wiesner of MIT, concluded that the national space program required a redefinition of objectives, that the National Aeronautics and Space Council should be made an effective agency for managing the space program, that there should be a single responsible agency within the military establishment to manage the military part of the space program, that NASA management should be reorganized with stronger emphasis on technical direction, and that organizational machinery should be set up within the government to administer an industry-government civilian space program.
Three of the Apollo Technical Liaison Groups Structures and Materials, Configurations and Aerodynamics, and Guidance and Control held their first meetings at the Ames Research Center.
The Group on Structures and Materials, after reviewing contractors' progress on the Apollo feasibility studies, considered reports on Apollo-related activities at NASA Centers. Among these activities were work on the radiative properties of material suitable for temperature control of spacecraft (Ames), investigation of low-level cooling systems in the reentry module (Langley), experiments on the landing impact of proposed reentry module shapes (Langley), meteoroid damage studies (Lewis), and the definition of suitable design criteria and safety factors to ensure the structural integrity of the spacecraft STG.
The Group on Configurations and Aerodynamics recommended :
Representatives of STG visited The Martin Company in Baltimore, Md., to review the progress of the Apollo feasibility study contract. Discussions on preliminary design of the spacecraft, human factors, propulsion, power supplies, guidance and control, structures, and landing and recovery were held with members of the Martin staff.
At the second meeting of the Manned Lunar Landing Task Group (Low Committee), a draft position paper was presented by George M. Low, Chairman. A series of reports on launch vehicle capabilities, spacecraft, and lunar program support were presented and considered for possible inclusion in the position paper.
The Marshall Space Flight Center awarded contracts to the Douglas Aircraft Company and Chance Vought Corporation to study the launching of manned exploratory expeditions into lunar and interplanetary space from earth orbits.
The Manned Lunar Landing Task Group (Low Committee) submitted its first draft report to NASA Associate Administrator Robert C. Seamans, Jr. A section on detailed costs and schedules still was in preparation and a detailed itemized backup report was expected to be available in mid- February.
NASA announced that the Lockheed Aircraft Corporation had been awarded a contract by the Marshall Space Flight Center to study the feasibility of refueling a spacecraft in orbit.
Wernher von Braun, Director of Marshall Space Flight Center, proposed that the Saturn C-1 launch vehicle be changed from a three-stage to a two-stage configuration to meet Apollo program schedules. The planned third stage (S-V) would be dropped.
President John F. Kennedy announced that he was nominating James E. Webb as Administrator of the National Aeronautics and Space Administration and Hugh L. Dryden as Deputy Administrator, Senate confirmation followed on February 9 and they were sworn in on February 14.
Members of STG met with representatives of the Convair Astronautics Division of the General Dynamics Corporation and Avco Corporation to monitor the progress of the Apollo feasibility study. Configurations and aerodynamics and Apollo heating studies were discussed. Current plans indicated that final selection of their proposed spacecraft configuration would be made by Convair Astronautics within a week. The status of the spacecraft reentry studies was described by Avco specialists.
Marshall Space Flight Center awarded contracts to NAA and Ryan Aeronautical Corporation to investigate the feasibility of recovering the first stage (S-I) of the Saturn launch vehicle by using a Rogallo wing paraglider.
The Manned Lunar Landing Task Group (Low Committee) transmitted its final report to NASA Associate Administrator Robert C. Seamans, Jr. The Group found that the manned lunar landing mission could be accomplished during the decade, using either the earth orbit rendezvous or direct ascent technique. Multiple launchings of Saturn C-2 launch vehicles would be necessary in the earth orbital mode, while the direct ascent technique would require the development of a Nova-class vehicle. Information to be obtained through supporting unmanned lunar exploration programs, such as Ranger and Surveyor, was felt to be essential in carrying out the manned lunar mission. Total funding for the program was estimated at just under $7 billion through Fiscal Year 1968.
NASA selected the Instrumentation Laboratory of MIT for a six-month study of a navigation and guidance system for the Apollo spacecraft.
Rocketdyne Division's first static test of a prototype thrust chamber for the F-1 engine achieved a thrust of 1.550 million pounds in a few seconds at Edwards Air Force Base, Calif.
A voice message was sent from Washington, D.C., to Woomera, Australia, by way of the moon. NASA Deputy Administrator Hugh L. Dryden spoke by telephone to Goldstone, Calif., which "bounced" it to the deep-space instrumentation station at Woomera. The operation was conducted as part of the official opening ceremony of the Australian facility.
A NASA inter-Center meeting on space rendezvous was held in Washington, D.C. Air Force and NASA programs were discussed and the status of current studies was presented by NASA Centers. Members of the Langley Research Center outlined the basic concepts of the lunar orbit rendezvous method of accomplishing the lunar landing mission.
The current Saturn launch vehicle configurations were announced:
The midterm review of the Apollo feasibility studies was held at STG. Oral status reports were made by officials of Convair Astronautics Division of the General Dynamics Corporation on March 1, The Martin Company on March 2, and the General Electric Company on March 3. The reports described the work accomplished, problems unsolved, and future plans. Representatives of all NASA Centers attended the meetings, including a majority of the members of the Apollo Technical Liaison Groups. Members of these Groups formed the nucleus of the mid-term review groups which met during the three-day period and compiled lists of comments on the presentations for later discussions with the contractors.
First flight model of Saturn booster (SA-1) installed on static test stand for preflight checkout, Marshall Space Flight Center, Huntsville.
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Management personnel from NASA Headquarters and STG met to plan general requirements for a proposal for advanced manned spacecraft development.
Representatives of Marshall Space Flight Center recommended configuration changes for the Saturn C-1 launch vehicles to NASA Headquarters. These included:
President John F. Kennedy submitted to Congress an amended budget request for NASA which totaled $1,235,300,000. This total was $125,670,000 greater than the Eisenhower Administration's request. The increase included $56 million for Saturn research and development and $11 million for the extension of Cape Canaveral facilities.
William W. Petynia of STG visited the Convair Astronautics Division of General Dynamics Corporation to monitor the Apollo feasibility study contract. A selection of the M-1 in preference to the lenticular configuration had been made by Convair. May 17 was set as the date for the final Convair presentation to NASA.
The Space Science Board of the National Academy of Sciences submitted to President John F. Kennedy its recommendation that "scientific exploration of the moon and planets should be clearly stated as the ultimate objective of the U.S. space program for the foreseeable future." While stressing the importance of the scientific goals of the program, the Board also emphasized other factors such as "the sense of national leadership emergent from bold and imaginative U.S. space activity." The recommendations of the Board had been adopted at a meeting on February 10-11 and were made public on August 7.
The Marshall Space Flight Center announced that 1.640 million pounds of thrust was achieved in a static- firing of the F-1 engine thrust chamber at Edwards Air Force Base, Calif. This was a record thrust for a single chamber.
The Apollo Technical Liaison Group for Structures and Materials discussed at STG the preparation of material for the Apollo spacecraft specification. It decided that most of the items proposed for its study could not be specified at that time and also that many of the items did not fall within the structures and materials area. A number of general areas of concern were added to the work plan: heat protection, meteoroid protection, radiation effects, and vibration and acoustics.
Meeting at STG, the Guidance and Control Group changed its name to the "Apollo Technical Liaison Group for Navigation, Guidance, and Control." Definitions were established for "navigation" (the determination of position and velocity), "guidance" (velocity vector control), and "control" (control of rotational orientation about the center of gravity - i.e., attitude control). Work was started on the preparation of the navigation, guidance, and control specifications for the Apollo spacecraft.
The Apollo Technical Liaison Group for Trajectory Analysis met at STG and began preparing material for the Apollo spacecraft specification. It recommended:
In preparing background material for the Apollo spacecraft specification at STG, the Apollo Technical Liaison Group for Mechanical Systems worked on environmental control systems, reaction control systems, auxiliary power supplies, landing and recovery systems, and space cabin sealing.
The Apollo Technical Liaison Group for Onboard Propulsion met at STG and considered preparation of background material for the Apollo spacecraft specification. It agreed that there were several problem areas for study before onboard propulsion final specifications could be drafted : cryogenic propellant storage problems, booster explosion hazards and assessment thereof, spacecraft system abort modes, propulsion system temperature control, propellant leakage, ignition in a confined space, zero suction pump proposals for cryogenic liquid bipropellant main engine systems, and propellant utilization and measurement system.
The Apollo Technical Liaison Group for Instrumentation and Communications met at STG and drafted an informal set of guidelines and sent them to the other Technical Liaison Groups:
At STG the Apollo Technical Liaison Group for Human Factors discussed the proposed outline for the spacecraft specification. Its recommendations included:
The Apollo Technical Liaison Group for Heating heard reports at STG by Group members on current studies at the NASA Centers. Recommendations concerning the spacecraft specification included:
At the second meeting of the Apollo Technical Liaison Group for Configurations and Aerodynamics at STG, presentations were made on Apollo-related activities at the NASA Centers: heatshield tests (Ames Research Center); reentry configurations (Marshall Space Flight Center); reentry configurations, especially lenticular (modified) and spherically blunted, paraglider soft-landing system, dynamic stability tests, and heat transfer tests (Langley Research Center); tumbling entries in planetary atmospheres (Mars and Venus) (Jet Propulsion Laboratory); air launch technique for Dyna-Soar (Flight Research Center); and steerable parachute system and reentry spacecraft configuration (STG). Work began on the background material for the Apollo spacecraft specification.
A joint meeting of the Apollo Technical Liaison Groups was held at STG. NASA Headquarters and STG representatives briefed members of the Groups on the status of the Apollo program. The individual Liaison Groups were asked to reexamine the Apollo guidelines in the light of NASA and contractor studies conducted during the past year and to help gather detailed technical information for use as background material in the preparation of the Apollo spacecraft specification.
NASA Associate Administrator Robert C. Seamans, Jr., established the permanent Saturn Program Requirements Committee. Members were William A. Fleming, Chairman; John L. Sloop, Deputy Chairman; Richard B. Canright; John H. Disher; Eldon W. Hall; A. M. Mayo; and Addison M. Rothrock, all of NASA Headquarters. The Committee would review on a continuing basis the mission planning for the utilization of the Saturn and correlate such planning with the Saturn development and procurement plans.
President John F. Kennedy, in his regular press conference, stated that "no one is more tired than I am" of seeing the United States second to Russia in space. "They secured large boosters which have led to their being first in Sputnik, and led to their first putting their man in space. We are, I hope, going to be able to carry out our efforts, with due regard to the problem of the life of the men involved, this year. But we are behind . . . the news will be worse before it is better, and it will be some time before we catch up. . . ."
In response to questioning by the House Science and Astronautics Committee, Associate NASA Administrator Seamans repeated the general estimate of $20 to $40 billion as the cost for the total effort required to achieve a lunar landing, that an all-out program might cost more, and that 1967 could be considered only as a possible planning date at this stage of such a complex task.
Recommendations on immediate steps to be taken so that the three key projects - MORAD (Manned Orbital Rendezvous and Docking), ARP (Apollo Rendezvous Phases), and MALLIR (Manned Lunar Landing Involving Rendezvous) - could get under way were:
John C. Houbolt and members of the Langley Research Center subcommittee on rendezvous outlined the objectives of a rendezvous program that would lead ultimately to a manned lunar landing:
A circular, "Manned Lunar Landing via Rendezvous," was prepared by John C. Houbolt from material supplied by himself, John D. Bird, Max C. Kurbjun, and Arthur W. Vogeley, who were members of the Langley Research Center space station subcommittee on rendezvous. Other members of the subcommittee at various times included W. Hewitt Phillips, John M. Eggleston, John A. Dodgen, and William D. Mace.
A conference was held at NASA Headquarters on the relationship between the Prospector and Apollo programs. Representatives of the Jet Propulsion Laboratory (JPL) and STG discussed the possible redirection of Prospector planning to support more directly the manned space program. The Prospector spacecraft was intended to soft-land about 2,500 pounds on the lunar surface with an accuracy of +/-1 kilometer anywhere on the visible side of the moon. An essential feature of Prospector was the development of an automatic roving vehicle weighing about 1500 pounds which would permit detailed reconnaissance of the lunar surface over a wide area.
A conference was held at Lewis Research Center between STG and Lewis representatives to discuss the research and development contract for the liquid-hydrogen liquid-oxygen fuel cell as the primary spacecraft electrical power source. Lewis had been provided funds approximately $300,000 by NASA Headquarters to negotiate a contract with Pratt & Whitney Aircraft Division of United Aircraft Corporation for the development of a fuel cell for the Apollo spacecraft. STG and Lewis representatives agreed that the research and development should be directed toward the liquid-hydrogen - liquid-oxygen fuel cell. Guidelines were provided by STG:
The first successful flight qualification test of the Saturn SA-1 booster took place in an eight-engine test lasting 30 seconds.
The Douglas Aircraft Company reported that air transport of the Saturn C-1 second stage (S-IV) was feasible.
Anticipating the expanded scope of manned space flight programs, STG proposed a manned spacecraft development center. The nucleus for a center existed in STG, which was handling the Mercury project. A program of much greater magnitude would require a substantial expansion of staff and facilities and of organization and management controls.
NASA Associate Administrator Robert C. Seamans, Jr., established the Ad Hoc Task Group for a Manned Lunar Landing Study, to be chaired by William A. Fleming of NASA Headquarters. The study was expected to produce the following information:
The engineering sketch drawn by John D. Bird of Langley Research Center on May 3, 1961, indicated the thinking of that period: By launching two Saturn C-2's, the lunar landing mission could be accomplished by using both earth rendezvous and lunar rendezvous at various stages of the mission.
STG completed the first draft of "Project Apollo, Phase A, General Requirements for a Proposal for a Manned Space Vehicle and System" (Statement of Work), an early step toward the spacecraft specification. A circumlunar mission was the basis for planning.
In initial study contracts, Martin proposed vehicle similar to the Apollo configuration that would eventually fly and closest to STG concepts. GE proposed design that would lead directly to Soyuz. Convair proposed a lifting body concept. All bidders were influenced by STG mid-term review that complained that they were not paying enough attention to conical blunt-body CM as envisioned by STG.
Albert C. Hall of The Martin Company proposed to Robert C. Seamans, Jr., NASA's Associate Administrator, that the Titan II be considered as a launch vehicle in the lunar landing program. Although skeptical, Seamans arranged for a more formal presentation the next day. Abe Silverstein, NASA's Director of Space Flight Programs, was sufficiently impressed to ask Director Robert R. Gilruth and STG to study the possible uses of Titan II. Silverstein shortly informed Seamans of the possibility of using the Titan II to launch a scaled-up Mercury spacecraft.
After study and discussion by STG and Marshal! Space Flight Center officials, STG concluded that the current 154-inch diameter of the second stage (S-IV) adapter for the Apollo spacecraft would be satisfactory for the Apollo missions on Saturn flights SA-7, SA-8, SA-9, and SA-10.
The final reports on the feasibility study contracts for the advanced manned spacecraft were submitted to STG at Langley Field, Va., by the General Electric Company, Convair Astronautics Division of General Dynamics Corporation, and The Martin Company. These studies had begun in November 1960.
The second draft of a Statement of Work for the development of an advanced manned spacecraft was completed, incorporating results from NASA in-house and contractor feasibility studies.
President Kennedy, in a major message to Congress, called for a vastly accelerated space program based on a long-range national goal of landing a man on the moon and bringing him safely back to Earth. For this and associated projects in space technology, the President requested additional appropriations totaling $611 million for NASA and the Department of Defense.
Robert C. Seamans, Jr., NASA's Associate Administrator, requested the Directors of the Office of Launch Vehicle Programs and the Office of Advanced Research Programs to bring together members of their staffs with other persons from NASA Headquarters to assess a wide variety of possible ways of accomplishing the lunar landing mission. This study was to supplement the one being done by the Ad Hoc Task Group for Manned Lunar Landing Study (Fleming Committee) but was to be separate from it.
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STG submitted to NASA Headquarters recommendations on crew selection and training:
The Marshall Space Flight Center began reevaluation of the Saturn C-2 configuration capability to support circumlunar missions. Results showed that a Saturn vehicle of even greater performance would be desirable.
Basic concepts of the lunar orbit rendezvous plan were presented to the Lundin Committee by John C. Houbolt of Langley Research Center.
NASA announced a change in the Saturn C-1 vehicle configuration. The first ten research and development flights would have two stages, instead of three, because of the changed second stage (S-IV) and, starting with the seventh flight vehicle, increased propellant capacity in the first stage (S-1) booster.
A meeting to discuss Project Apollo plans and programs was held at NASA Headquarters. Abe Silverstein, Warren J. North, John H. Disher, and George M. Low of NASA Headquarters and Robert R. Gilruth, Walter C. Williams, Maxime A. Faget, James A. Chamberlin, and Robert O. Piland of STG participated in the discussions. Six prime contract areas were defined: spacecraft (command center), onboard propulsion, lunar landing propulsion, launch vehicle (probably several prime contracts), tracking and communications network, and launch facilities and equipment. The prime contractor for the spacecraft would be responsible for the design, engineering, and fabrication of the spacecraft; for the integration of the onboard and lunar landing propulsion systems: and for the integration of the entire spacecraft system with the launch vehicle. In connection with the prime contract, STG would:
Collapse of a lock in the Wheeler Dam below Huntsville on the Tennessee River interdicted the planned water route of the first Saturn space booster from Marshall Space Flight Center to Cape Canaveral on the barge Palaemon.
Huge Saturn launch complex at Cape Canaveral dedicated in brief ceremony by NASA, construction of which was supervised by the Army Corps of Engineers. Giant gantry, weighing 2,800 tons and being 310 feet high, is largest movable land structure in North America.
The Flight Vehicles Integration Branch was organized within STG. Members included H. Kurt Strass, Robert L. O'Neal, and Charles H. Wilson. Maxime A. Faget, Chief, Flight Systems Division, also served as temporary Branch Chief. The Branch was to provide technical aid to STG in solving compatibility requirements for spacecraft and launch vehicles for manned flight missions.
A preliminary study of a fin-stabilized solid-fuel rocket booster, the Little Joe Senior, was completed by members of STG. The booster would be capable of propelling a full-size Apollo reentry spacecraft to velocities sufficient to match critical portions of the Saturn trajectory.
'The Lundin Committee completed its study of various vehicle systems for the manned lunar landing mission, as requested on May 25 by NASA associate Administrator Robert C. Seamans, Jr. The Committee had considered alternative methods of rendezvous: earth orbit, lunar orbit, a combination of earth and lunar orbit, and lunar surface. Launch vehicles studied were the Saturn C-2 and C-3. Conclusion was that 43,000 kg stage (85% fuel) was needed for a lunar landing mission. The concept of a low- altitude earth orbit rendezvous using two or three C-3's was clearly preferred by the Committee. Reasons for this preference were the small number of launches and orbital operations required and the fact that the Saturn C- 3 was considered to be an efficient launch vehicle of great utility and future growth.
The Fleming Committee, which had been appointed on May 2, submitted its report to NASA associate Administrator Robert C. Seamans, Jr., on the feasibility of a manned lunar landing program. The Committee concluded that the lunar mission could be accomplished within the decade. Chief pacing items were the first stage of the launch vehicle and the facilities for testing and launching the booster. It also concluded that information on solar flare radiation and lunar surface characteristics should be obtained as soon as possible, since these factors would influence spacecraft design. Special mention was made of the need for a strong management organization.
Robert C. Seamans, Jr., NASA Associate Administrator, notified the Directors of Launch Vehicle Program, Space Flight Programs, Advanced Research Programs, and Life Sciences Programs that Donald H. Heaton had been appointed Chairman of an Ad Hoc Task Group. It would establish program plans and supporting resources necessary to accomplish the manned lunar landing mission by the use of rendezvous techniques, using the Saturn C-3 launch vehicle, with a target date of 1967. Guidelines and operating methods were similar to those of the Fleming Committee. Members of the Task Group would be appointed from the Offices of Launch Vehicle Programs, Space Flight Program, Advanced Research Programs, and Life Sciences Programs. The work of the Group (Heaton Committee) would be reviewed weekly. The study was completed during August.
Deputy NASA Administrator Dryden sent an explanatory letter to Chairman Robert S. Kerr, of the Senate Committee on Aeronautical and Space Sciences, on the broad scientific and technological gains to be achieved in landing a man on the Moon and returning him to Earth. Dr. Dryden pointed out that this difficult goal "has the highly important role of accelerating the development of space science and technology, motivating the scientists and engineers who are engaged in this effort to move forward with urgency, and integrating their efforts in a way that cannot be accomplished by a disconnected series of research investigations in several fields. It is important to realize, however, that the real values and purposes are not in the mere accomplishment of man setting foot on the Moon but rather in the great cooperative national effort in the development of science and technology which is stimulated by this goal." Dr. Dryden pointed out that "the billions of dollars required in this effort are not spent on the Moon; they are spent in the factories, workshops, and laboratories of our people for salaries, for new materials, and supplies, which in turn represent income for others. . . . The national enterprise involved in the goal of manned lunar landing and return within this decade is an activity of critical impact on the future of this Nation as an industrial and military power, and as a leader of a free world."
Meeting with Webb/Dryden, work on Saturn C-2 stopped; preliminary design of C-3 and continuing studies of larger vehicles for landing missions requested. STG push for 4 x 6.6 m diameter solid cluster first stage rejected for safety and ground handling reasons.
NASA-DOD Executive Committee for Joint Lunar Study and a Joint Lunar Study Program Office established by letter directive to work out and define support requirements for the U.S. manned lunar landing program.
NASA Associate Administrator Robert C. Seamans, Jr., requested Kurt H. Debus, Director of the NASA Launch Operations Directorate, and Maj. Gen. Leighton I. Davis, Commander of the Air Force Missile Test Center, to make a joint analysis of all major factors regarding the launch requirements, methods, and procedures needed in support of an early manned lunar landing. The schedules and early requirements were to be considered in two phases:
NASA announced that further engineering design work on the Saturn C-2 configuration would be discontinued and that effort instead would be redirected toward clarification of the Saturn C-3 and Nova concepts. Investigations were specifically directed toward determining capabilities of the proposed C-3 configuration in supporting the Apollo mission.
NASA announced that the Saturn C-1 launch vehicle, which could place ten-ton payloads in earth orbit, would be operational in 1964.
Maxime A. Faget, Paul E. Purser, and Charles J. Donlan of STG met with Arthur W. Vogeley, Clinton E. Brown, and Laurence K. Loftin, Jr., of Langley Research Center on a "lunar landing" paper. Faget's outline was to be used, with part of the information to be worked up by Vogeley.
A Navy YFNB barge was obtained by NASA to serve as a replacement for the Palaemon in transporting of the Saturn booster to Cape Canaveral.
Members of Langley Research Center briefed the Heaton Committee on the lunar orbit rendezvous method of accomplishing the manned lunar landing mission.
Construction began at Langley Research Center of facilities specifically oriented toward the Apollo program, including a lunar landing simulator.
STG completed a detailed assessment of the results of the Project Apollo feasibility studies submitted by the three study contractors: the General Electric Company, Convair/Astronautics Division of the General Dynamics Corporation, and The Martin Company. (Their findings were reflected in the Statement of Work sent to prospective bidders on the spacecraft contract on July 28.)
Space Task Group engineers James A. Chamberlin and James T. Rose proposed adapting the improved Mercury spacecraft to a 35,000-pound payload, including a 5,000-pound 'lunar lander.' This payload would be launched by a Saturn C-3 in the lunar-orbit-rendezvous mode. The proposal was in direct competition with the Apollo proposals that favored direct landing on the Moon with a 150,000-pound payload launched by a Nova-class vehicle of approximately 12 million pounds of thrust.
At NASA Headquarters, the first meeting was held of the Manned Lunar Landing Coordination Group, attended by NASA Associate Administrator Robert C. Seamans, Jr., Ira H. Abbott, Don R. Ostrander, Charles H. Roadman, William A. Fleming, DeMarquis D. Wyatt (part-time), and George M. Low (in place of Abe Silverstein). This Headquarters Group, appointed by Seamans, was to coordinate problems that jointly affected several NASA Offices, during the interim period while the manned space flight organization was being formed. Members of the steering group included NASA program directors, with participation by Wernher von Braun of Marshall Space Flight Center, Robert R. Gilruth of STG, and Wyatt and Abraham Hyatt of NASA Headquarters, as required. Fleming acted as Secretary of the Group. A list of decisions and actions required to implement an accelerated lunar landing program was drawn up as a tentative agenda for the next meeting:
The NASA Administrator and the Secretary of Defense concluded an agreement to study development of large launch vehicles for the national space program. For this purpose, the DOD-NASA Large Launch Vehicle Planning Group was created, reporting to the Associate Administrator of NASA and to the Assistant Secretary of Defense (Deputy Director of Defense Research and Engineering).
NASA announced that a complete F-1 engine had begun a series of static test firings at Edwards Rocket Test Center, Calif.
1,000 persons from 300 potential Project Apollo contractors and government agencies attended the conference. STG pushed the conical CM shape, in defiance of Gilruth's preference for the competitive blunt body/lifting body designs. Scientists from NASA, the General Electric Company, The Martin Company, and General Dynamics/Astronautics presented the results of studies on Apollo requirements. Within the next four to six weeks NASA was expected to draw up the final details and specifications for the Apollo spacecraft.
The Large Launch Vehicle Planning Group, established on July 7, 1961, began its formal existence with seven DOD and seven NASA members and alternates.
Changes in Saturn launch vehicle configurations were announced :
NASA invited 12 companies to submit prime contractor proposals for the Apollo spacecraft by October 9: The Boeing Airplane Company, Chance Vought Corporation, Douglas Aircraft Company, General Dynamics/Convair, the General Electric Company, Goodyear Aircraft Corporation, Grumman Aircraft Engineering Corporation, Lockheed Aircraft Corporation, McDonnell Aircraft Corporation, The Martin Company, North American Aviation, Inc., and Republic Aviation Corporation.
NASA Associate Administrator Robert C. Seamans, Jr., appointed members to the Source Evaluation Board to evaluate contractors' proposals for the Apollo spacecraft. Walter C. Williams of STG served as Chairman, and members included Robert O. Piland, Wesley L. Hjornevik, Maxime A. Faget, James A. Chamberlin, Charles W. Mathews, and Dave W. Lang, all of STG; George M. Low, Brooks C. Preacher, and James T. Koppenhaver (nonvoting member) from NASA Headquarters; and Oswald H. Lange from Marshall Space Flight Center. On November 2, Faget became the Chairman, Kenneth S. Kleinknecht was added as a member, and Williams was relieved from his assignment.
Langley Research Center simulated spacecraft flights at speeds of 8,200 to 8,700 feet per second in approaching the moon's surface. With instruments preset to miss the moon's surface by 40 to 80 miles, pilots with control of thrust and torques about all three axes of the craft learned to establish orbits 10 to 90 miles above the surface, using a graph of vehicle rate of descent and circumferential velocity, an altimeter, and vehicle attitude and rate meters, as reported by Manuel J. Queijo and Donald R. Riley of Langley.
The MIT Instrumentation Laboratory and NASA completed the work statements for the Laboratory's program on the Apollo guidance and navigation system and the request for quotation for industrial support was prepared.
James A. Chamberlin and James T. Rose of STG proposed adapting the improved Mercury spacecraft to a 35,000-pound payload, including a 5,000-pound "lunar lander." This payload would be launched by a Saturn C-3 in the lunar orbit rendezvous mode. The proposal was in direct competition with the Apollo proposals that favored direct landing on the moon and involved a 150,000-pound payload launched by a Nova-class vehicle with approximately 12 million pounds of thrust.
Ralph Ragan of the MIT Instrumentation Laboratory, former director of the Polaris guidance and navigation program, in cooperation with Milton B. Trageser of the Laboratory and with Robert O. Piland, Robert C. Seamans, Jr., and Robert G. Chilton, all of NASA, had completed a study of what had been done on the Polaris program in concept and design of a guidance and navigation system and the documentation necessary for putting such a system into production on an extremely tight schedule. Using this study, the group worked out a rough schedule for a similar program on Apollo.
Phase I of a joint NASA-DOD report on facilities and resources required at launch sites to support the manned lunar landing program was submitted to Associate Administrator Robert C. Seamans, Jr., by Kurt H. Debus, Director, Launch Operations Directorate, and Maj. Gen. Leighton I. Davis, Commander of the Air Force Missile Test Center. The report, requested by Seamans on June 23, was based on the use of Nova- class launch vehicles for the manned lunar landing in a direct ascent mode, with the Saturn C-3 in supporting missions. Eight launch sites were considered: Cape Canaveral (on-shore); Cape Canaveral (off- shore); Mayaguana Island (Atlantic Missile Range downrange); Cumberland Island, Ga.; Brownsville, Tex.; White Sands Missile Range, N. Mex.; Christmas Island, Pacific Ocean; and South Point, Hawaii. On the basis of minimum cost and use of existing national resources, and taking into consideration the stringent time schedule, White Sands Missile Range and Cape Canaveral (on-shore) were favored. White Sands presented serious limitations on launch azimuths because of first-stage impact hazards on populated areas.
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NASA headquarters announced that it was making a world-wide study of possible launching sites for Moon vehicles; the size, power, noise, and possible hazards of Saturn-Nova type rockets requiring greater isolation for public safety than presently available.
First Saturn (SA-1) booster began water trip to Cape Canaveral on Navy barge Compromise after overland detour around Wheeler Dam.
STG appointed members to the Technical Subcommittee and to the Technical Assessment Panels for evaluation of industry proposals for the development of the Apollo spacecraft.
NASA selected MIT's Instrumentation Laboratory to develop the guidance-navigation system for Project Apollo spacecraft. This first major Apollo contract was required since guidance-navigation system is basic to overall Apollo mission. The Instrumentation Laboratory of MIT, a nonprofit organization headed by C. Stark Draper, has been involved in a variety of guidance and navigation systems developments for 20 years. This first major Apollo contract had a long lead-time, was basic to the overall Apollo mission, and would be directed by STG.
Navy barge Compromise, carrying first Saturn booster, stuck in the mud in the Indian River just south of Cape Canaveral. Released several hours later, the Saturn was delayed only 24 hours in its 2,200-mile journey from Huntsville.
STG held a pre-proposal briefing at Langley Field, Va., to answer bidders' questions pertaining to the Request for Proposal for the development of the Apollo spacecraft. 14 companies (Boeing, Vought, Douglas, GD, Goodyear, Grumman, Lockheed, Martin, McDonnell, Radio Corp, Republic, STL) attended. The winning bidder would receive contract for CSM (but not LM, if any) and integrate spacecraft with launch vehicle.
STG requested that a program be undertaken by the U.S. Navy Air Crew Equipment Laboratory, Philadelphia, Penna., to validate the atmospheric composition requirement for the Apollo spacecraft. On November 7, the original experimental design was altered by the Manned Spacecraft Center (MSC). The new objectives were:
F-1 rocket engine tested in first of firing series of the complete flight system.
STG appointed members to the Business Subcommittee and to the Business Assessment Panels for evaluation of industry proposals for the development of the Apollo spacecraft.
The Large Launch Vehicle Planning Group (Golovin Committee) notified the Marshal! Space Flight Center (MSFC), Langley Research Center, and the Jet Propulsion Laboratory (JPL) that the Group was planning to undertake a comparative evaluation of three types of rendezvous operations and direct flight for manned lunar landing. Rendezvous methods were earth orbit, lunar orbit, and lunar surface. MSFC was requested to study earth orbit rendezvous, Langley to study lunar orbit rendezvous, and JPL to study lunar surface rendezvous. The NASA Office of Launch Vehicle Programs would provide similar information on direct ascent.
After considering Cape Canaveral, Cape Canaveral-Merritt Island, Mayaguana-Bahamas, Cumberland-Georgia, Brownville-Texas, Christmas Island, Hawaii, and White Sands, Merritt Island selected as launch site for manned lunar flights and other missions requiring Saturn and Nova class vehicles. Based upon national space goals announced by the President in May, NASA plans called for acquisition of 80,000 acres north and west of AFMTC, to be administered by the USAF as agent for NASA and as a part of the Atlantic Missile Range.
The Jet Propulsion Laboratory selected the Blaw Knox Company of Pittsburgh, Penna., for second-phase feasibility and design studies of an antenna in the 200-to 250-foot diameter class. The first of these antennas, which were to be used in acquiring data from advanced lunar and planetary exploration programs, would be operational at Goldstone, Calif., by early 1965.
The deep-space tracking station at Hartebeesthoek, South Africa, was completed. Dedication took place on September 8. NASA thus gained the capacity for continuous line-of-sight communication with lunar and interplanetary probes despite the earth's rotation. The other deep-space tracking stations were at Goldstone, Calif., and Woomera, Australia.
Landing by Gemini using 4,000 kg wet/680 kg empty lander and Saturn C-3 booster. Landing by January 1966.
The Ad Hoc Task Group for Study of Manned Lunar Landing by Rendezvous Techniques, Donald H. Heaton, Chairman, reported its conclusions: rendezvous offered the earliest possibility for a successful lunar landing, the proposed Saturn C-4 configuration should offer a higher probability of an earlier successful manned lunar landing than the C-3, the rendezvous technique recommended involved rendezvous and docking in earth orbit of a propulsion unit and a manned spacecraft, the cost of the total program through first lunar landing by rendezvous was significantly less than by direct ascent.
C. Stark Draper, Director of the MIT Instrumentation Laboratory, at a meeting with NASA Administrator James E. Webb, Deputy Administrator Hugh L. Dryden, and Associate Administrator Robert C. Seamans, Jr., at NASA Headquarters proposed that at least one of the Apollo astronauts should be a scientifically trained individual since it would be easier to train a scientist to perform a pilot's function than vice versa. (In a letter to Seamans on November 7, Draper further proposed that he be that individual.)
Authorization for NASA to acquire necessary land for additional launch facilities at Cape Canaveral was approved by the Senate.
NASA announced that the government-owned Michoud Ordnance Plant near New Orleans, La., would be the site for fabrication and assembly of the Saturn C-3 first stage as well as larger vehicles. Finalists were two government-owned plants in St. Louis and New Orleans. The height of the factory roof at Michoud meant that an 8 x F-1 engined vehicle could not be built; 4 or 5 engines would have to be the maximum.
NASA selected NAA to develop the second stage (S-II) for the advanced Saturn launch vehicle. The cost, including development of at least ten vehicles, would total about $140 million. The S-II configuration provided for four J-2 liquid-oxygen - liquid-hydrogen engines, each delivering 200,000 pounds of thrust.
Representatives of STG and NASA Headquarters visited the Instrumentation Laboratory of MIT to discuss the contract awarded to the Laboratory on August 9 and progress in the design and development of the Apollo spacecraft navigation and guidance system. They mutually decided that a draft of the final contract should be completed for review at Instrumentation Laboratory by October 2 and the contract resolved by October 9. Revisions were to be made in the Statement of Work to define more clearly details of the contract. Milton B. Trageser of the Laboratory, in the first month's technical progress report, gave a brief description of the first approach to the navigation and guidance equipment and the arrangement of the equipment within the spacecraft. He also presented the phases of the lunar flight and the navigation and guidance functions or tasks to be performed. Other matters discussed were a space sextant and making visual observations of landmarks through cloud cover.
In a memorandum to the Large Launch Vehicle Planning Group (LLVPG) staff, Harvey Hall of NASA described the studies being done by the Centers on rendezvous modes for accomplishing a manned lunar landing. These studies had been requested from Langley Research Center, Marshall Space Flight Center, and the Jet Propulsion Laboratory on August 23. STG was preparing separate documentation on the lunar orbit rendezvous mode. An LLVPG team to undertake a comparative evaluation of rendezvous and direct ascent techniques had been set up. Members of the team included Hall and Norman Rafel of NASA and H. Braham and L. M. Weeks of Aerospace Corporation.
The evaluation would consider:
NASA invited 36 companies to bid on a contract to produce the first stage of the advanced Saturn launch vehicle. Representatives of interested companies would attend a pre-proposal conference in New Orleans, La., on September 26. Bids were to be submitted by October 16 and NASA would then select the contractor, probably in November.
NASA Administrator Webb announced that location of the new Manned Spacecraft Center would be in Houston, Tex., the conclusion of an intensive nationwide study by a site selection team. The Manned Spacecraft Center would be the command center for the manned lunar landing mission and all follow-on manned space flight missions. This announcement was the third basic decision on major facilities required for the expanded U.S. Range and the establishment of the spacecraft fabrication center at the Michoud Ordnance Plant near New Orleans, La.
A major reorganization of NASA Headquarters was announced by Administrator James E. Webb. Four new program offices were to be formed, effective November 1: the Office of Advanced Research and Technology, Ira H. Abbott, Director; the Office of Space Sciences, Homer E. Newell, Director; the Office of Manned Space Flight, D. Brainerd Holmes, Director; and the Office of Applications, directorship vacant. Holmes' appointment had been announced on September 20. He had been General Manager of the Major Defense Systems Division of the Radio Corporation of America. The new Directors would report to Robert C. Seamans, Jr., NASA's Associate Administrator.
At the same time, Robert R. Gilruth was named Director of the Manned Spacecraft Center to be located in Houston, Tex. The Directors of NASA's nine field centers would, like the newly appointed program Directors, report to Seamans.
Dr. George N. Constan of Marshall Space Flight Center named as acting manager of the new NASA Saturn fabrication plant near New Orleans by Director von Braun of Marshall Space Flight Center.
NASA bidders conference on a contract to produce the booster (S-I) stage of the Saturn vehicle was held at the Municipal Auditorium, New Orleans.
Richard H. Battin published MIT Instrumentation Laboratory Report R-341, "A Statistical Optimizing Navigation Procedure for Space Flight," describing the concepts by which Apollo navigation equipment could make accurate computations of position and velocity with an onboard computer of reasonable size.
The MSFC-STG Space Vehicle Board at NASA Headquarters discussed the S- IVB stage, which would be modified by the Douglas Aircraft Company to replace the six LR-115 engines with a single J-2 engine. Funds of $500,000 were allocated for this study to be completed in March 1962.
The Charter of the MSFC-STG Space Vehicle Board, prepared jointly by Marshall Space Flight Center (MSFC) and STG, was approved at the first meeting of the Board at NASA Headquarters. The purpose of the Space Vehicle Board was to assure complete coordination and cooperation between all levels of the MSFC and STG management for the NASA manned space flight programs in which both Centers had responsibilities. Members of the Board were the Directors of MSFC and STG (Wernher von Braun and Robert R. Gilruth), the Deputy Director for Research and Development, MSFC (Eberhard F. M. Rees), and the STG Associate Director (Walter C. Williams). The Board was responsible for:
The Sub-Board would :
Four Saturn-Apollo Coordination Panels were established to make available the technical competence of MSFC and STG for the solution of interrelated problems of the launch vehicle and the spacecraft. The four included the Launch Operations, Mechanical Design, Electrical and Electronics Design, and Flight Mechanics, Dynamics, and Control Coordination Panels. Although these Panels were designated as new Panels, the members selected by STG and MSFC represented key technical personnel who had been included in the Mercury-Redstone Panels, the Mercury-Atlas Program Panels, the Apollo Technical Liaison Groups, and the Saturn working groups. The Charter was signed by von Braun and Gilruth. Charter of the MSFC-STG Space Vehicle Board, October 3, 1961.
Representatives of STG visited the Instrumentation Laboratory of MIT for the second monthly progress report meeting on the Apollo spacecraft guidance and navigation contract. A number of technical topics were presented by Laboratory speakers: space sextant visibility and geometry problems, gear train analysis, vacuum environmental approach, midcourse guidance theory, inertial measurement unit, and gyro. The organization of the Apollo effort at the Laboratory was also discussed. A preliminary estimate of the cost for both Laboratory and industrial support for the Apollo navigation and guidance system was presented: $158.4 million through Fiscal Year 1966.
Five Bidding Teams: GD/Avco; GE/Douglas/Grumman/STL; McDonnell/Lockheed/Hughes/Vought; Martin/North American
Officials of STG heard oral reports from representatives of five industrial teams bidding on the contract for the Apollo spacecraft: General Dynamics/Astronautics in conjunction with the Avco Corporation; General Electric Company, Missile and Space Vehicle Department, in conjunction with Douglas Aircraft Company, Grumman Aircraft Engineering Corporation, and Space Technology Laboratories, Inc.; McDonnell Aircraft Corporation in conjunction with Lockheed Aircraft Corporation, Hughes Aircraft Company, and Chance Vought Corporation of Ling-Temco-Vought, Inc.; The Martin Company; and North American Aviation, Inc.
The MSFC-STG Advanced Program Coordination Board met at STG and discussed the question of the development of an automatic checkout system which would include the entire launch vehicle program from the Saturn C-1 through the Nova. It agreed that the Apollo contractor should be instructed to make the spacecraft electrical subsystems compatible with the Saturn complex.
In further discussion, Paul J. DeFries of Marshall Space Flight Center MSFC presented a list of proposed guidelines for use in studying early manned lunar landing missions:
Studies of "unconventional" rockets using liquid fuels in the thrust range from 2 to 24 million pounds announced by NASA; 2 contracts being carried out by Aerojet-General and Rocketdyne Division of North American Aviation.
NASA selected Pearl River site in southwestern Mississippi, 35 miles from Michoud plant in New Orleans, for static test facility for Saturn and Nova-class vehicles, completed facility to operate under direction of Marshall Space Flight Center.
Largest known rocket launch to date, the Saturn I 1st stage booster, successful on first test flight from Atlantic Missile Range. With its eight clustered engines developing almost 1.3 million pounds of thrust at launch, the Saturn (SA-1) hurled waterfilled dummy upper stages to an altitude of 84.8 miles and 214.7 miles down range. In a postlaunch statement, Administrator Webb said: "The flight today was a splendid demonstration of the strength of our national space program and an important milestone in the buildup of our national capacity to launch heavy payloads necessary to carry out the program projected by President Kennedy on May 25.".
Robert G. Chilton of STG gave the MIT Instrumentation Laboratory new information based on NASA in- house studies on the Apollo spacecraft roll inertia, pitch and yaw inertia, and attitude jets.
David G. Hoag, MIT, personal notes, October 1961.
![]() | Apollo CSM and LM Credit: © Mark Wade. 6,016 bytes. 491 x 271 pixels. |
Under the direction of John C. Houbolt of Langley Research Center, a two-volume work entitled "Manned Lunar-Landing through use of Lunar-Orbit Rendezvous" was presented to the Golovin Committee (organized on July 20). The study had been prepared by Houbolt, John D. Bird, Arthur W. Vogeley, Ralph W. Stone, Jr., Manuel J. Queijo, William H. Michael, Jr., Max C. Kurbjun, Roy F. Brissenden, John A. Dodgen, William D. Mace, and others of Langley. The Golovin Committee had requested a mission plan using the lunar orbit rendezvous concept. Bird, Michael, and Robert H. Tolson appeared before the Committee in Washington to explain certain matters of trajectory and lunar stay time not covered in the document.
The Space Task Group was formally redesignated the Manned Spacecraft Center, Robert R. Gilruth, Director.
Marshall Space Flight Center directed NAA to redesign the advanced Saturn second stage (S-II) to incorporate five rather than four J-2 engines, to provide a million pounds of thrust.
In a memorandum to D. Brainerd Holmes, Director, Office of Manned Space Flight (OMSF), Milton W. Rosen, Director of Launch Vehicles and Propulsion, OMSF, described the organization of a working group to recommend to the Director a large launch vehicle program which would meet the requirements of manned space flight and which would have broad and continuing national utility for other NASA and DOD programs. The group would include members from the NASA Office of Launch Vehicles and Propulsion (Rosen, Chairman, Richard B. Canright, Eldon W. Hall, Elliott Mitchell, Norman Rafel, Melvyn Savage, and Adelbert O. Tischler); from the Marshall Space Flight Center (William A. Mrazek, Hans H. Maus, and James B. Bramlet); and from the NASA Office of Spacecraft and Flight Missions (John H. Disher). (David M. Hammock of MSC was later added to the group.) The principal background material to be used by the group would consist of reports of the Large Launch Vehicle Planning Group (Golovin Committee), the Fleming Committee, the Lundin Committee, the Heaton Committee, and the Debus-Davis Committee. Some of the subjects the group would be considering were:
An Apollo Egress Working Group, consisting of personnel from Marshall Space Flight Center, Launch Operations Directorate, and Atlantic Missile Range, was formed on November 2. Meetings on that date and on November 6 resulted in publication of a seven-page document, "Apollo Egress Criteria." The Group established ground rules, operations and control procedures criteria, and space vehicle design criteria and provided requirements for implementation of emergency egress system.
Representatives of MSC and NASA Headquarters visited the MIT Instrumentation Laboratory to discuss clauses in the contract for the Apollo navigation and guidance system, technical questions proposed by MSC, and work in progress. Topics discussed included the trajectories for the SA-7 and SA-8 flights and the estimated propellant requirements for guidance attitude maneuvers and velocity changes for the lunar landing mission. Presentations were made on the following subjects by members of the Laboratory staff: the spacecraft gyro, Apollo guidance computer logic design, computer displays and interfaces, guidance computer programming, horizon sensor experiments, and reentry guidance.
The four MSC-MSFC Coordination Panels held their first meeting at Marshall Space Flight Center (MSFC). A significant event was the decision to modify the Electrical and Electronics Design Panel by creating two new Panels: the Electrical Systems Integration Panel and the Instrumentation and Communications Panel. In succeeding months, the Panels met at regular intervals.
In a letter to NASA Associate Administrator Robert C. Seamans, Jr., John C. Houbolt of Langley Research Center presented the lunar orbit rendezvous (LOR) plan and outlined certain deficiencies in the national booster and manned rendezvous programs. This letter protested exclusion of the LOR plan from serious consideration by committees responsible for the definition of the national program for lunar exploration.
Golovin Committe studies launch vehicles through summer, but found the issue to be completely entertwined with mode (earth-orbit, lunar-orbit, lunar-surface rendezvous or direct flight. Two factions: large solids for direct flight; all-chemical with 4 or 5 F-1's in first stage for rendezvous options. In the end Webb and McNamara ordered development of C-4 and as a backup, in case of failure of F-1 in development, build of 6.1 m+ solid rocket motors by USAF.
NASA announced that the Chrysler Corporation had been chosen to build 20 Saturn first-stage (S-1) boosters similar to the one tested successfully on October 27 . They would be constructed at the Michoud facility near New Orleans, La. The contract, worth about $200 million, would run through 1966, with delivery of the first booster scheduled for early 1964.
Milton W. Rosen, Director of Launch Vehicles and Propulsion, NASA Office of Manned Space Flight (OMSF), submitted to D. Brainerd Holmes, Director, OMSF, the report of the working group which had been set up on November 6.
Bid ratings: Martin 6.9; GD 6.6; North American 6.6; GE 6.4; McDonnell 6.4
The original Apollo spacecraft Statement of Work of July 28 had been substantially expanded, including a single-engine service module propulsion system using Earth-storable, hypergolic propellants.
Despite an announcement at Martin on 27 November that they had won the Apollo program, the decision was reversed at the highest levels of the US government. NASA announced instead that the Space and Information Systems Division of North American Aviation, Inc., had been selected to design and build the Apollo spacecraft. The official line: 'the decision by NASA Administrator James E. Webb followed a comprehensive evaluation of five industry proposals by nearly 200 scientists and engineers representing both NASA and DOD. Webb had received the Source Evaluation Board findings on November 24. Although technical evaluations were very close, NAA had been selected on the basis of experience, technical competence, and cost'. NAA would be responsible for the design and development of the command module and service module. NASA expected that a separate contract for the lunar landing system would be awarded within the next six months. The MIT Instrumentation Laboratory had previously been assigned the development of the Apollo spacecraft guidance and navigation system. Both the NAA and MIT contracts would be under the direction of MSC.
On a visit to Marshall Space Flight Center by MIT Instrumentation Laboratory representatives, the possibility was discussed of emergency switchover from Saturn to Apollo guidance systems as backup for launch vehicle guidance.
The Project Apollo Statement of Work for development of the Apollo spacecraft was completed. A draft letter based on this Statement of Work was presented to NAA for review. A prenegotiation conference on the development of the Apollo spacecraft was held at Langley Field, Va.
NASA Associate Administrator Robert C. Seamans, Jr., commented to D. Brainerd Holmes, Director, Office of Manned Space Flight, on the report of the Rosen working group on launch vehicles, which had been submitted on November 20. Seamans expressed himself as essentially in accord with the group's recommendations.
NASA negotiations with NAA on the Apollo spacecraft contract were held at Williamsburg, Va. Nine Technical Panels met on December 11 and 12 to review Part 3, Technical Approach, of the Statement of Work. These Panels reported their recommended changes and unresolved questions to the Technical Subcommittee for action. Later in the negotiations, NASA and NAA representatives agreed on changes intended to clarify the original Statement of Work. Among these was the addition of the boilerplate program. Two distinct types of boilerplates were to be fabricated: those of a simple cold-rolled steel construction for drop impact tests and the more complex models to be used with the Little Joe II and Saturn launch vehicles. The Little Joe II, originally conceived in June 1961, was a solid-fuel rocket booster which would be used to man-rate the launch escape system for the command module.
In addition, the Apollo Project Office, which had been part of the MSC Flight Systems Division, would now report directly to the MSC Director and would be responsible for planning and directing all activities associated with the completion of the Apollo spacecraft project. Primary functions to be performed by the Office would include:
Letter contract No. NAS 9-150, authorizing work on the Apollo development program to begin on January 1, 1962, was signed by NASA and NAA on December 21. Under this contract, NAA was assigned the design and development of the command and service modules, the spacecraft adapter, associated ground support equipment, and spacecraft integration. Formal signing of the contract followed on December 31.
NASA selected Mason-Rust as the contractor to provide support services at NASA's Michoud plant near New Orleans, providing housekeeping services through June 30, 1962 for the three contractors who would produce the Saturn S-I and S-IB boosters and the Rift nuclear upper-stage vehicle.
NASA announced that The Boeing Company had been selected for negotiations as a possible prime contractor for the first stage (S-IC) of the advanced Saturn hunch vehicle. The S-IC stage, powered by five F-1 engines, would be 35 feet in diameter and about 140 feet high. The $300-million contract, to run through 1966, called for the development, construction, and testing of 24 flight stages and one ground test stage. The booster would be assembled at the NASA Michoud Operations Plant near New Orleans, La., under the direction of the Marshall Space Flight Center.
Fred T. Pearce, Jr., of MSC visited the MIT Instrumentation Laboratory to discuss the first design-study space sextant produced at the Laboratory, The instrument was intended to be used with the guidance computer. The working mockup was demonstrated and the problem of the effect of the vehicle motion on the sextant was discussed.
The General Assembly of the United Nations unanimously adopted Resolution 1721 (XIV) on international cooperation in the peaceful uses of outer space.
NASA announced that Douglas Aircraft had been selected for negotiation of a contract to modify the Saturn S-IV stage by installing a single 200,000-pound-thrust, Rocketdyne J-2 liquid-hydrogen/liquid-oxygen engine instead of six 15,000-pound-thrust P. & W. hydrogen/oxygen engines. Known as S-IVB, this modified stage will be used in advanced Saturn configurations for manned circumlunar Apollo missions.
D. Brainerd Holmes, Director of the NASA Office of Manned Space Flight, announced the formation of the Manned Space Flight Management Council. The Council, which was to meet at least once a month, was to identify and resolve difficulties and to coordinate the interface problems in the manned space flight program. Members of the Council, in addition to Holmes, were: from MSC, Robert R. Gilruth and Walter C. Williams, Director and Associate Director; from Marshall Space Flight Center, Wernher von Braun, Director, and Eberhard F. M. Rees, Deputy Director for Research and Development; from NASA Headquarters, George M. Low, Director of Spacecraft and Flight Missions; Milton W. Rosen, Director of Launch Vehicles and Propulsion; Charles H. Roadman, Director of Aerospace Medicine; William E. Lilly, Director of Program Review and Resources Management; and Joseph F. Shea, Deputy Director for Systems Engineering, Shea, formerly Space Programs Director for Space Technology Laboratories, Inc., Los Angeles, Calif., had recently joined NASA.
NAA's Space and Information Systems Division selected four companies as subcontractors to design and build four of the major Apollo spacecraft systems. The Collins Radio Company, Cedar Rapids, Iowa, received the telecommunications systems contract, worth more than $40 million; Minneapolis-Honeywell Regulator Company, Minneapolis, Minn., received the stabilization and control systems contract, $30 million; AiResearch Manufacturing Company, division of The Garrett Corporation, Los Angeles, Calif., was awarded the environmental control system contract, $10 million; and Radioplane Division of Northrop Corporation, Van Nuys, Calif., was selected for the parachute landing system contract, worth more than $1 million. The total cost for the initial phase of the NAA contract was expected to exceed $400 million.
Rosen Committee studies in November and December indicated that the most flexible choice for Apollo was the Saturn C-4, with two required for the earth orbit rendezvous approach or one for the lunar orbit rendezvous mission, with a smaller landed payload. The panel rejected solid motors again, but Rosen himself still pushed for Nova. An extra F-1 engine was 'slid in' for insurance, resulting in the Saturn C-5 configuration. The Manned Space Flight Management Council decided at its first meeting that the Saturn C-5 launch vehicle would have a first stage configuration of five F-1 engines and a second stage configuration of five J-2 engines. The third stage would be the S-IVB with one J-2 engine. It recommended that the contractor for stage integration of the Saturn C-1 be Chrysler Corporation and that the contractor for stage integration of the Saturn C-5 be The Boeing Company. Contractor work on the Saturn C-5 should proceed immediately to provide a complete design study and a detailed development plan before letting final contracts and assigning large numbers of contractor personnel to Marshall Space Flight Center or Michoud.
Dr. Hugh L. Dryden, Deputy Administrator of NASA, speaking in Denver before the American Association for the Advancement of Science, said: "The sheer magnitude of the manned lunar exploration program, amounting as it will to $3 billion or more (in fiscal year 1963), represents a significant application of the Nation's resources. These billions of dollars will be spent in the laboratories, workshops, and factories of the Nation and thus constitute a significant factor in the Nation's employment and economy generally. The personnel in the space program are not all scientists and engineers but come from every walk of life."
The Requests for Quotation on production contracts for major components of the Apollo spacecraft guidance and navigation system, comprising seven separate items, were released to industry by the MIT Instrumentation Laboratory. (The Source Evaluation Board, appointed on January 31, began its work during the week of March 5 and contractors were selected on May 8.)
The Grumman Aircraft Engineering Corporation developed a detailed, company-funded study on the lunar orbit rendezvous technique: characteristics of the system (relative cost of direct ascent, earth orbit rendezvous, and lunar orbit rendezvous); developmental problems (communications, propulsion); and elements of the system (tracking facilities, etc.). Joseph M. Gavin was appointed in the spring to head the effort, and Robert E. Mullaney was designated program manager.
NASA made public the drawings of the three-man Apollo spacecraft to be used in the lunar landing development program, On January 9, NASA announced its decision that the Saturn C-5 would be the lunar launch vehicle.
In his State of the Union message to the Congress, President John F . Kennedy said: "With the approval of this Congress, we have undertaken in the past year a great new effort in outer space. Our aim is not simply to be first on the moon, any more than Charles Lindbergh's real aim was to be first to Paris. His aim was to develop the techniques and the authority of this country and other countries in the field of the air and the atmosphere, and our objective in making this effort, which we hope will place one of our citizens on the moon, is to develop in a new frontier of science, commerce and cooperation, the position of the United States and the free world. This nation belongs among the first to explore it. And among the first - if not the first - we shall be."
The Apollo Spacecraft Project Office (ASPO) was established at MSC. Charles W. Frick was selected as Manager of the new Office, to assume his duties in February. Frick had been Chief of Technical Staff for General Dynamics Convair. Robert O. Piland was appointed Deputy Manager of ASPO and would serve as Acting Manager until Frick's arrival. ASPO would be responsible for the technical direction of NAA and other industrial contractors assigned to work on the Apollo spacecraft.
The first Apollo engineering order was issued to fabricate mockups of the Apollo command and service modules.
NAA engineers began preliminary layouts to define the elements of the command module (CM) configuration. Additional requirements and limitations imposed on the CM included reduction in diameter, paraglider compatibility, 250 pounds of radiation protection water, redundant propellant tankage for the attitude control system, and an increase in system weight and volume.
Command module heatshield requirements, including heating versus time curves, were established by NAA for several design trajectories. A computer program method of analyzing the charring ablation process had been developed. By this means, it was possible to calculate the mass loss, surface char layer temperature, amount of heat conducted through the uncharred ablation material and insulation into the cabin, and temperature profile through the ablator and insulation layers. In February, NAA determined that a new and more refined computer program would be needed.
The solid propellant called for in the original NAA proposal on the service module propulsion system was replaced by a storable, hypergolic propellant. Multitank configurations under study appeared to present offloading capabilities for alternative missions.
John C. Houbolt of Langley Research Center and Charles W. Mathews of MSC made a presentation of lunar orbit rendezvous versus earth orbit rendezvous to the Manned Space Flight Management Council.
On the basis of a study by NAA, a single-engine configuration was chosen as the optimum approach for the service module propulsion subsystem. The results of the study were presented to MSC representatives and NAA was authorized to issue a work statement to begin procurement of an engine for this configuration. Agreement was also reached at this meeting on a vacuum thrust level of 20,000 pounds for the engine. This would maintain a thrust-to-weight ratio of 0.4 and allow a considerable increase in the lunar liftoff weight of the spacecraft.
At his regular press conference, President John F. Kennedy was asked for his "evaluation of our progress in space at this time" and whether the United States had changed its "timetable for landing a man on the moon." He replied: "As I said from the beginning, we have been behind . . . and we are running into the difficulties which came from starting late, We, however, are going to proceed by making a maximum effort. As you know, the expenditures in our space program are enormous . . . the time schedule, at least our hope, has not been changed by the recent setbacks (Ranger failures)."
![]() | Apolo LM Credit: © Mark Wade. 14,042 bytes. 768 x 540 pixels. |
NASA announced that the General Electric Company had been selected for a major supporting role in the Apollo project, to provide integration analysis of the total space vehicle (including booster-spacecraft interface), ensure reliability of the entire space vehicle, and develop and operate a checkout system.
Robert R. Gilruth, MSC Director, in a letter to NASA Headquarters, described the Ad Hoc Lunar Landing Module Working Group which was to be under the direction of the Apollo Spacecraft Project Office. The Group would determine what constraints on the design of the lunar landing module were applicable to the effort of the Lewis Research Center. Gilruth asked that Eldon W. Hall represent NASA Headquarters in this Working Group. (At this time, the lunar landing module was conceived as being that part of the spacecraft which would actually land on the moon and which would contain the propulsion system necessary for launch from the lunar surface and injection into transearth trajectory. Pending a decision on the lunar mission mode, the actual configuration of the module was not yet clearly defined.)
A contract for the escape rocket of the Apollo spacecraft launch escape system was awarded to the Lockheed Propulsion Company by NAA. The initial requirements were for a 200,000-pound-thrust solid- propellant rocket motor with an active thrust-vector-control subsystem.
A meeting on the technical aspects of earth orbit rendezvous was held at NASA Headquarters. Representatives from various NASA offices attended: Arthur L. Rudolph, Paul J. DeFries, Fred L. Digesu, Ludie G. Richard, John W. Hardin, Jr., Ernst D. Geissler, and Wilson B. Schramm of Marshall Space Flight Center (MSFC); James T. Rose of MSC; Friedrich O. Vonbun, Joseph W. Siry, and James J. Donegan of Goddard Space Flight Center (GSFC); Douglas R. Lord, James E. O'Neill, Richard J. Hayes, Warren J. North, and Daniel D. McKee of the NASA Office of Manned Space Flight (OMSF). Joseph F. Shea, Deputy Director for Systems, OMSF, who had called the meeting, defined in general terms the goal of the meeting: to achieve agreement on the approach to be used in developing the earth orbit rendezvous technique. After two days of discussions and presentations, the Group approved conclusions and recommendations:
NASA signed a contract with The Boeing Company for indoctrination, familiarization, and planning, expected to lead to a follow-on contract for design, development, manufacture, test, and launch operations of the first stage S-IC of the Saturn C-5 launch vehicle.
NASA announced Project Fire, a high-speed reentry heat research program to obtain data on materials, heating rates, and radio signal attenuation on spacecraft reentering the atmosphere at speeds of about 24,500 miles per hour. Information from the program would support technology for manned and unmanned reentry from lunar missions. Under the management of the Langley Research Center, Project Fire would use Atlas D boosters and the reentry package would be powered by an Antares solid-fuel motor (third stage of the Scout).
The preparation of schedules based on the NASA Fiscal Year 1962 budget (including the proposed supplemental appropriation), the Fiscal Year 1963 budget as submitted to Congress, and Fiscal Year 1964 and subsequent funding was discussed at the Manned Space Flight Management Council meeting. Program assumptions as presented by Wernher von Braun, Director, Marshall Space Flight Center (MSFC), were approved for use in preparation of the schedules :
A NASA Apollo Office was established at NAA's Space and Information Systems Division, under the direction of J. Thomas Markley of MSC. The Office would serve primarily as liaison between the prime contractor and the Apollo Spacecraft Project Office at MSC.
The command module crew couch was repositioned and redesigned because of numerous problems. In the new design, an adjustable hand controller, similar to that used on the X-15, would be attached to an adjustable arm rest. The head rest could be regulated for an approximate four-inch movement, while the side head support was limited in movement for couch-module clearance. The adjustable leg support included a foot controller which could be folded up.
The center couch, including the crewman parachute and survival kit, could be folded out to a sleep position and stowed under either remaining couch. Allowance was made for the crewman to turn over.
Principal problems remaining were the difficulty of removing the center couch and providing the clearances needed for the couch positions specified for various phases of the lunar mission.
NASA wind tunnel data on the adaptation of the Project Mercury Little Joe booster to the Apollo launch escape system were analyzed. The booster fins were ineffective in maintaining the stability of the configuration and the project was canceled. The later Little Joe II depended on the inherent stability of the total vehicle to attain a successful ballistic trajectory to test altitude.
NASA Headquarters selected the Chance Vought Corporation of Ling-Temco-Vought, Inc., as a contractor to study spacecraft rendezvous. A primary part of the contract would be a flight simulation study exploring the capability of an astronaut to control an Apollo-type spacecraft.
The Marquardt Corporation was selected by NAA's Space and Information Systems Division to design and build the reaction control rocket engines for the Apollo spacecraft. The contract was signed during April.
The Aerojet-General Corporation was named by NAA as a subcontractor for the Apollo service module propulsion system.
The organizational elements and staffing for the MSC Apollo Spacecraft Project Office was announced:
Robert O. Piland, Deputy Project Manager
William F. Rector, Special Assistant
Calvin H. Perrine, Flight Technology
Lee N. McMillion, Crew Systems
David L. Winterhalter, Sr., Power Systems
Wallace D. Graves, Mechanical Systems
Milton C. Kingsley, Electrical Systems
(Vacant), Ground Support Equipment
Jack Barnard, Apollo Office at MIT
(Vacant), Reliability and Quality Control
Emory F. Harris, Operations Requirements
Robert P. Smith, Launch Vehicle Integration
Owen G. Morris, Mission Engineering
Marion R. Franklin, Ground Operational Support Systems
Alan B. Kehlet, Engineering
Alan B. Kehlet, Acting Manager, Quality Control and Engineering
Herbert R. Ash, Acting Manager, Business Administration
NAA awarded a development contract for the Apollo spacecraft fuel cell to Pratt & Whitney Aircraft Division of United Aircraft Corporation.
Primary MSC activities for the Apollo program were relocated from Langley Field, Va., to the Manned Spacecraft Center, Houston, Tex.
A NASA Headquarters-MSC management meeting was held to discuss the general status of the Apollo project, Apollo Spacecraft Project Office organization, mission and engineering studies, and budgets and schedules. Participants at the meeting agreed that a staged lunar landing propulsion module would be studied.
James E. Webb, NASA Administrator, recommended to President John F. Kennedy that the Apollo program be given DX priority (highest priority in the procurement of critical materials). He also sent a memorandum to Vice President Lyndon B. Johnson, Chairman of the National Aeronautics and Space Council, requesting that the Council consider advising the President to add the Apollo program to the DX priority list.
NASA and the Jet Propulsion Laboratory announced the selection of the Military Electronics Division of Motorola, Inc., as the contractor to manufacture and test radio equipment in the first two phases of a program to augment the Deep Space Instrumentation Facility (DSIF) by providing "S" band capability for stations at Goldstone, Calif., Woomera, Australia, and near Johannesburg, South Africa. With these stations located some 120 degrees apart around the earth, DSIF would have a high-gain, narrow-beam-width, high-frequency system, with very little interference from cosmic noise and would provide much improved telemetering and tracking of satellites as far out as the moon and nearby planets.
Charles W. Frick, Manager of the MSC Apollo Spacecraft Project Office, together with Maxime A. Faget, Charles W. Mathews, Christopher C. Kraft, Jr., John B. Lee, Owen E. Maynard, and Alan B. Kehlet of MSC and George M. Low of the NASA Office of Manned Space Flight, visited NAA at Downey, Calif. This was the first monthly meeting of the Apollo design and review team to survey NAA's progress in various areas, including the Apollo spacecraft heatshield, fuel cells, and service module.
Marshall Space Flight Center's latest schedule on the Saturn C-5 called for the first launch in the last quarter of 1965 and the first manned launch in the last quarter of 1967. If the C-5 could be man-rated on the eighth research and development flight in the second quarter of 1967, the spacecraft lead time would be substantially reduced.
The Avco Corporation was selected by NAA to design and install the ablative material on the Apollo spacecraft outer surface.
Wind tunnel tests were completed at the Jet Propulsion Laboratory and at Langley Research Center on two early configurations of Apollo spacecraft models.
NASA Headquarters approved plans for the development of the Little Joe II test launch vehicle. Prospective bidders were notified of a briefing to be held at MSC on April 6, at which time Requests for Proposals would be distributed.
Members of Langley Research Center briefed representatives of the Chance Vought Corporation of Ling- Temco-Vought, Inc., on the lunar orbit rendezvous method of accomplishing the lunar landing mission. The briefing was made in connection with the study contract on spacecraft rendezvous awarded by NASA Headquarters to Chance Vought on March 1.
NASA announced that a $5 million contract would be awarded to Republic Aviation Corporation for the construction of two experimental reentry spacecraft. Republic was selected from eight companies that submitted bids on March 12. The contract was part of Project Fire, to develop a spacecraft capable of withstanding reentry into the earth's atmosphere from a lunar mission. Plans called for the spacecraft to be tested during the second half of 1963.
The Apollo guidance and navigation system was defined in more detail as more information from NASA MIT studies was received on new requirements for the system. As a result, the scope of the component development tasks given to all the guidance and navigation subcontractors was substantially increased.
A small group within the MSC Apollo Spacecraft Project Office developed a preliminary program schedule for three approaches to the lunar landing mission: earth orbit rendezvous, direct ascent, and lunar orbit rendezvous. The exercise established a number of ground rules :
NAA was directed by the MSC Apollo Spacecraft Project Office to begin a study to define the configuration and design criteria of the service module which would make the lunar landing maneuver and touchdown.
A meeting to review the lunar orbit rendezvous (LOR) technique as a possible mission mode for Project Apollo was held at NASA Headquarters. Representatives from various NASA offices attended: Joseph F. Shea, Eldon W. Hall, William A. Lee, Douglas R. Lord, James E. O'Neill, James Turnock, Richard J. Hayes, Richard C. Henry, and Melvyn Savage of NASA Headquarters; Friedrich O. Vonbun of Goddard Space Flight Center (GSFC); Harris M. Schurmeier of Jet Propulsion Laboratory; Arthur V. Zimmeman of Lewis Research Center; Jack Funk, Charles W. Mathews, Owen E. Maynard, and William F. Rector of MSC; Paul J. DeFries, Ernst D. Geissler, and Helmut J. Horn of Marshall Space Flight Center (MSFC); Clinton E. Brown, John C. Houbolt, and William H. Michael, Jr., of Langley Research Center; and Merrill H. Mead of Ames Research Center. Each phase of the LOR mission was discussed separately.
The launch vehicle required was a single Saturn C-5, consisting of the S-IC, S-II, and S-IVB stages. To provide a maximum launch window, a low earth parking orbit was recommended. For greater reliability, the two-stage-to-orbit technique was recommended rather than requiring reignition of the S-IVB to escape from parking orbit.
The current concepts of the Apollo command and service modules would not be altered. The lunar excursion vehicle (LEV), under intensive study in 1961, would be aft of the service module and in front of the S-IVB stage. For crew safety, an escape tower would be used during launch. Access to the LEV would be provided while the entire vehicle was on the launch pad.
Both Apollo and Saturn guidance and control systems would be operating during the launch phase. The Saturn guidance and control system in the S-IVB would be "primary" for injection into the earth parking orbit and from earth orbit to escape. Provisions for takeover of the Saturn guidance and control system should be provided in the command module. Ground tracking was necessary during launch and establishment of the parking orbit, MSFC and GSFC would study the altitude and type of low earth orbit.
The LEV would be moved in front of the command module "early" in the translunar trajectory. After the S-IVB was staged off the spacecraft following injection into the translunar trajectory, the service module would be used for midcourse corrections. Current plans were for five such corrections. If possible, a symmetric configuration along the vertical center line of the vehicle would be considered for the LEV. Ingress to the LEV from the command module should be possible during the translunar phase. The LEV would have a pressurized cabin capability during the translunar phase. A "hard dock" mechanism was considered, possibly using the support structure needed for the launch escape tower. The mechanism for relocation of the LEV to the top of the command module required further study. Two possibilities were discussed: mechanical linkage and rotating the command module by use of the attitude control system. The S-IVB could be used to stabilize the LEV during this maneuver.
The service module propulsion would be used to decelerate the spacecraft into a lunar orbit. Selection of the altitude and type of lunar orbit needed more study, although a 100-nautical-mile orbit seemed desirable for abort considerations.
The LEV would have a "point" landing (±½ mile) capability. The landing site, selected before liftoff, would previously have been examined by unmanned instrumented spacecraft. It was agreed that the LEV would have redundant guidance and control capability for each phase of the lunar maneuvers. Two types of LEV guidance and control systems were recommended for further analysis. These were an automatic system employing an inertial platform plus radio aids and a manually controlled system which could be used if the automatic system failed or as a primary system.
The service module would provide the prime propulsion for establishing the entire spacecraft in lunar orbit and for escape from the lunar orbit to earth trajectory. The LEV propulsion system was discussed and the general consensus was that this area would require further study. It was agreed that the propulsion system should have a hover capability near the lunar surface but that this requirement also needed more study.
It was recommended that two men be in the LEV, which would descend to the lunar surface, and that both men should be able to leave the LEV at the same time. It was agreed that the LEV should have a pressurized cabin which would have the capability for one week's operation, even though a normal LOR mission would be 24 hours. The question of lunar stay time was discussed and it was agreed that Langley should continue to analyze the situation. Requirements for sterilization procedures were discussed and referred for further study. The time for lunar landing was not resolved.
In the discussion of rendezvous requirements, it was agreed that two systems be studied, one automatic and one providing for a degree of manual capability. A line of sight between the LEV and the orbiting spacecraft should exist before lunar takeoff. A question about hard-docking or soft-docking technique brought up the possibility of keeping the LEV attached to the spacecraft during the transearth phase. This procedure would provide some command module subsystem redundancy.
Direct link communications from earth to the LEV and from earth to the spacecraft, except when it was in the shadow of the moon, was recommended. Voice communications should be provided from the earth to the lunar surface and the possibility of television coverage would be considered.
A number of problems associated with the proposed mission plan were outlined for NASA Center investigation. Work on most of the problems was already under way and the needed information was expected to be compiled in about one month.
(This meeting, like the one held February 13-15, was part of a continuing effort to select the lunar mission mode).
A mockup of the Apollo command module, built by the Space and Information Systems Division of NAA, was made public for the first time during a visit to NAA by news media representatives.
The Thiokol Chemical Corporation was selected by NAA to build the solid-fuel rocket motor to be used to jettison the Apollo launch escape tower following a launch abort or during a normal mission.
The request for a proposal on the Little Joe II test launch vehicle was submitted to bidders by a letter from MSC, together with a Work Statement. Five launches, which were to test boilerplate models of the Apollo spacecraft command module in abort situations, were called for: three in 1963 and two in 1964.
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Representatives of MSC made a formal presentation at Marshall Space Flight Center on the lunar orbit rendezvous technique for accomplishing the lunar mission.
Discussions at the monthly NAA-NASA Apollo spacecraft design review included:
Milton W. Rosen, NASA Office of Manned Space Flight Director of Launch Vehicles and Propulsion, recommended that the S-IVB stage be designed specifically as the third stage of the Saturn C-5 and that the C-5 be designed specifically for the manned lunar landing using the lunar orbit rendezvous technique. The S-IVB stage would inject the spacecraft into a parking orbit and would be restarted in space to place the lunar mission payload into a translunar trajectory. Rosen also recommended that the S- IVB stage be used as a flight test vehicle to exercise the command module (CM), service module (SM), and lunar excursion module (LEM) (previously referred to as the lunar excursion vehicle (LEV)) in earth orbit missions. The Saturn C-1 vehicle, in combination with the CM, SM, LEM, and S-IVB stage, would be used on the most realistic mission simulation possible. This combination would also permit the most nearly complete operational mating of the CM, SM, LEM, and S-IVB prior to actual mission flight.
The Manned Space Flight Management Council decided to delay the awarding of a Nova launch vehicle study contract until July 1 at the earliest to allow time for an in-house study of bids submitted and for further examination of the schedule for a manned lunar landing using the direct ascent technique.
MSC Associate Director Walter C. William reported to the Manned Space Flight Management Council that the lack of a decision on the lunar mission mode was causing delays in various areas of the Apollo spacecraft program, especially the requirements for the portions of the spacecraft being furnished by NAA.
John C. Houbolt of Langley Research Center, writing in the April issue of Astronautics, outlined the advantages of lunar orbit rendezvous for a manned lunar landing as opposed to direct flight from earth or earth orbit rendezvous. Under this concept, an Apollo-type spacecraft would fly directly to the moon, go into lunar orbit, detach a small landing craft which would land on the moon and then return to the mother craft, which would then return to earth. The advantages would be the much smaller craft performing the difficult lunar landing and takeoff, the possibility of optimizing the smaller craft for this one function, the safe return of the mother craft in event of a landing accident, and even the possibility of using two of the small craft to provide a rescue capability.
The contract for the Apollo service module propulsion engine was awarded by NAA to Aerojet-General Corporation. The estimated cost of the contract was $12 million. NAA had given Aerojet-General authority April 9 to begin work.
NAA determined that preliminary inflight nuclear radiation instrumentation would consist of an onboard system to detect solar x-ray or ultraviolet radiation and a ground visual system for telemetering solar flare warning signals to the command module. The crew would have eight to ten minutes warning to take protective action before the arrival of solar flare proton radiation.
NAA studies resulted in significant changes in the command module environmental control system (ECS).
Three major changes were made by NAA in the Apollo space-suit circuit:
NAA developed a concept for shock attenuation along the command module Y-Y axis by the use of aluminum honeycomb material. Cylinders mounted on the outboard edge of the left and right couches would extend mechanically to bear against the side compartment walls.
The basic design configuration of the command module forward compartment was changed by the relocation of two attitude control engines from the lower to the upper compartment area, where less heat flux would be experienced during reentry.
A purchase request was being prepared by NASA for wind tunnel support services from the Air Force's Arnold Engineering Development Center in the amount of approximately $222,000. These wind tunnel tests were to provide design parameter data on static stability, dynamic stability, pressure stability, and heat transfer for the Apollo program. The funds were to cover tests during June and July 1962. Approximately $632,000 would be required in Fiscal Year 1963 to fund the tests scheduled to December 1962.
A presentation on the lunar orbit rendezvous technique was made to D. Brainerd Holmes, Director, NASA Office of Manned Space Flight, by representatives of the Apollo Spacecraft Project Office. A similar presentation to NASA Associate Administrator Robert C. Seamans, Jr., followed on May 31.
The Source Evaluation Board for selecting Apollo navigation and guidance components subcontractors completed its evaluation of bids and technical proposals and submitted its findings to NASA Headquarters. Preliminary presentation of the Board's findings had been made to NASA Administrator James E. Webb on April 5.
At the monthly Apollo spacecraft design review meeting at NAA, MSC representatives recommended that NAA and Avco Corporation prepare a comprehensive test plan for verifying the overall integrity of the heatshield including flight tests deemed necessary, without regard for anticipated hunch vehicle availability.
MSC processed a purchase request to increase NAA's spacecraft letter contract from $32 million to $55 million to cover NAA's costs to June 30, 1962. (Pending the execution of a definitive contract (signed August 14, 1963), actions of this type were necessary).
A preliminary Statement of Work for a proposed lunar excursion module was completed, although the mission mode had not yet been selected.
NASA announced the selection of three companies for the negotiation of production contracts for major components of the Apollo spacecraft guidance and navigation system under development by the MIT Instrumentation Laboratory. The largest of the contracts, for $16 million, would be negotiated with AC Spark Plug Division of General Motor Corporation for fabrication of the inertial, gyroscope-stabilized platform of the Apollo spacecraft; for development and construction of ground support and checkout equipment; and for assembling and testing all parts of the system. The second contract, for $2 million, would be negotiated with the Raytheon Company to manufacture the digital computer aboard the spacecraft. Under the third contract, for about $2 million, Kollsman Instrument Corporation would build the optical subsystems, including a space sextant, sunfinders, and navigation display equipment.
NASA awarded a letter contract to General Dynamics/Convair to design and manufacture the Little Joe II test launch vehicle which would be used to boost the Apollo spacecraft on unmanned suborbital test flights. The Little Joe II would be powered by clustered solid-fuel engines. At the same time, a separate 30-day contract was awarded to Convair to study the control system requirements. White Sands Missile Range, N. Mex., had been selected for the Little Joe II max q abort and high-altitude abort missions.
D. Brainerd Holmes, NASA's Director of Manned Space Flight, requested the Directors of Launch Operations Center, Manned Spacecraft Center, and Marshall Space Flight Center (MSFC) to prepare supporting component schedules and cost breakdowns through Fiscal Year 1967 for each of the proposed lunar landing modes: earth orbit rendezvous, lunar orbit rendezvous, and direct ascent. For direct ascent, a Saturn C-8 launch vehicle was planned, using a configuration of eight F-1 engines, eight J-2 engines, and one J-2 engine. MSFC was also requested to submit a proposed schedule and summary of costs for the Nova launch vehicle, using the configuration of eight F-1 engines, two M-1 engines, and one J-2 engine. Each Center was asked to make an evaluation of the schedules as to possibilities of achievement, major problem areas, and recommendations for deviations.
The F-1 engine was first fired at full power more than 1.5 million pounds of thrust) for 2.5 minutes at Edwards Rocket Site, Calif.
The Manned Space Flight Management Council approved the mobile launcher concept for the Saturn C-5 at Launch Complex 39, Merritt Island, Fla.
A schedule for the letting of a contract for the development of a lunar excursion module was presented to the Manned Space Flight Management Council by MSC Director Robert R. Gilruth in anticipation of a possible decision to employ the lunar rendezvous technique in the lunar landing mission.
NAA studies on the prototype crew couch included one on the use of the center couch for supporting a crewman at the astrosextant during lunar approach and another on the displacement of outboard couches for access to equipment areas.
NAA decided to retain the inward-opening pull-down concept for the spacecraft crew hatch, which would use plain through bolts for lower sill attachment and a manual jack-screw device to supply the force necessary to seat and unseat the hatch.
Concurrently, a number of NAA latching concepts were in preparation for presentation to NASA, including that of an outward-opening, quick- opening crew door without an outer emergency panel. This design, however, had weight and complexity disadvantages, as well as requiring explosive charges.
NAA began compiling a list of command module materials to be classified selectively for potentially toxic properties. These materials would be investigated to determine location (related to possible venting of gases), fire resistance, exposure to excessive temperatures, gases resulting from thermal decomposition, and toxicity of gases released under normal and material-failure conditions. Although a complete examination of every material was not feasible, materials could be grouped according to chemical constituency and quantity of gases released.
The basic spacecraft adapter structure was defined as consisting of six aluminum honeycomb panels, six longerons, and forward and aft bulkheads. The design of the honeycomb panels for the test requirements program was complete.
A feasibility study was completed by NAA on the ballistic (zero-lift) maneuver as a possible emergency flight mode for lunar mission reentry. Based upon single-pass and 12 g maximum load-factor criteria, the guidance corridor would be nine nautical miles. When atmospheric density deviations were considered (+/- 50 percent from standard), the allowable corridor would be reduced to four nautical miles. Touchdown dispersions within the defined corridor exceeded 2500 nautical miles.
NAA completed a preliminary requirement outline for spacecraft docking. The outline specified that the two spacecraft be navigated to within a few feet of each other and held to a relative velocity of less than six inches per second and that they be steered to within a few inches of axial alignment and parallelism. The crewman in the airlock was assumed to be adequately protected against radiation and meteoric bombardment and to be able to grasp the docking spacecraft and maneuver it to the sealing faces for final clamp.
Layouts of three command module observation window configurations were made by NAA. A study disclosed that sufficient direct vision for lunar landing was not feasible and that windows could not be uncovered during reentry.
Two NAA analyses showed that the urine management system would prevent a rise in the command module humidity load and atmospheric contamination and that freeze-up of the line used for daily evacuation of urine to the vacuum of space could be prevented by proper orificing of the line.
The first reliability prediction study for the Apollo spacecraft was completed by NAA. Assuming all systems as series elements and excluding consideration of alternative modes, redundancies, or inflight maintenance provisions, the study gave a reliability estimate of 0.731. This analysis provided a basis from which means of improving reliability would be evaluated and formulated.
Telescope requirements for the spacecraft were modified after two study programs had been completed by NAA.
A study on the direct vision requirement for lunar landing showed that, to have a simultaneous direct view of the lunar landing point and the landing feet without changing the spacecraft configuration, a periscope with a large field of view integrated with a side window would be needed. A similar requirement on the general-purpose telescope could thus be eliminated, reducing the complexity of the telescope design.
Another study showed that, with an additional weight penalty of from five to ten pounds, an optical drift indicator for use after parachute deployment could easily be incorporated into the general-purpose telescope.
NAA evaluated the possibility of integrating the fuel cell and environmental control system heat rejection into one system. The integrated system proved to be unsatisfactory, being 300 pounds heavier and considerably more complex than the two separate systems. A preliminary design of separate fuel cell radiators, possibly located on the service module, was started by NAA.
The command module reaction control system (RCS) selected by NAA was a dual system without interconnections. Either would be sufficient for the entire mission.
For the service module RCS, a quadruple arrangement was chosen which was basically similar to the command module RCS except that squib valves and burst discs were eliminated.
Wernher von Braun, Director, Marshall Space Flight Center, recommended to the NASA Office of Manned Space Flight that the lunar orbit rendezvous mode be adopted for the lunar landing mission. He also recommended the development of an unmanned, fully automatic, one-way Saturn C-5 logistics vehicle in support of the lunar expedition; the acceleration of the Saturn C-1B program; the development of high-energy propulsion systems as a backup for the service module and possibly the lunar excursion module; and further development of the F-1 and J-2 engines to increase thrust or specific impulse.
NAA was directed by the Apollo Spacecraft Project Office at the monthly design review meeting to design an earth landing system for a passive touchdown mode to include the command module cant angle limited to about five degrees and favoring offset center of gravity, no roll orientation control, no deployable heatshield, and depressurization of the reaction control system propellant prior to impact. At the same meeting, NAA was requested to use a single "kicker" rocket and a passive thrust-vector-control system for the spacecraft launch escape system.
Results of a preliminary investigation by NAA showed that a 100 percent oxygen atmosphere for the command module would save about 30 pounds in weight and reduce control complexity.
NASA announced that the Apollo service module propulsion system would be tested at a new facility at White Sands Missile Range, N. Mex.
As the result of considerable joint engineering effort and discussion by NAA and MIT Instrumentation Laboratory, the location of the onboard space sextant in the command module was changed from the main instrument panel to the wall of the lower equipment bay. The instrument would penetrate the hull on the hot side during reentry and the navigator would have to leave his couch to make navigation sightings and to align the inertial measurement unit.
NASA and MIT agreed that the Instrumentation Laboratory would use the microcircuit for the prototype Apollo onboard computer. The Fairchild Controls Corporation microcircuit was the only one available in the United States.
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After an extended discussion, the Manned Space Flight Management Council unanimously decided:
Joseph F. Shea, NASA Deputy Director of Manned Space Flight (Systems), presented to the Manned Space Flight Management Council the results of the study on lunar mission mode selection. The study included work by personnel in Shea's office, MSC, and Marshall Space Flight Center. The criteria used in evaluating the direct ascent technique, earth orbit rendezvous connecting and fueling modes, and lunar orbit rendezvous were: the mission itself, weight margins, guidance accuracy, communications and tracking requirements, reliability (abort problems), development complexity, schedules, costs, flexibility, growth potential, and military implications.
MSC Director Robert R. Gilruth reported to the Manned Space Flight Management Council that the selection of the ablative material for the Apollo spacecraft heatshield would be made by September 1. The leading contender for the forebody ablative material was an epoxy resin with silica fibers for improving char strength and phenolic microballoons for reducing density.
In addition, Gilruth noted that a reevaluation of the Saturn C-1 and C-1B launch capabilities appeared to indicate that neither vehicle would be able to test the complete Apollo spacecraft configuration, including the lunar excursion module. Complete spacecraft qualification would require the use of the Saturn C-5.
A thermal coverall for use in extravehicular space suit design was completed in-house and would be shipped to Vought Astronautics for use in the MSC evaluation contract.
Five NASA scientists, dressed in pressure suits, completed an exploratory study at Rocketdyne Division of the feasibility of repairing, replacing, maintaining, and adjusting components of the J-2 rocket while in space. The scientific team also investigated the design of special maintenance tools and the effectiveness of different pressure suits in performing maintenance work in space.
The delta V (rate of incremental change in velocity) requirements for the lunar landing mission were established and coordinated with NAA by the Apollo Spacecraft Project Office.
Hamilton Standard Division of United Aircraft Corporation selected by NASA to develop the Apollo space suit.
NASA awarded three contracts totaling an estimated $289 million to NAA's Rocketdyne Division for the further development and production of the F-1 and J-2 rocket engines.
The document entitled "Charter of the MSFC-STG Space Vehicle Board," adopted on October 3, 1961, was revised to read "Spacecraft Launch Vehicle Coordination Charter for the Apollo Program MSFC-MSC." The reasons for the revision were: to include the recently formed Management Council, to include the Electrical Systems Integration Panel and Instrumentation and Communications Panel responsibilities, and to establish Integration Offices within MSC and Marshall Space Flight Center (MSFC) to manage the Panels.
Employment at NAA's Space and Information Systems Division reached 14,119, an increase of 7,000 in seven months.
Charles W. Frick, MSC Apollo Project Office Manager, assigned MIT Instrumentation Laboratory to report on a simulated lunar landing trainer using guidance and navigation equipment and other displays as necessary or proposed.
At the monthly Apollo spacecraft design review meeting with NAA, MSC officials directed NAA to design the spacecraft atmospheric system for 5 psia pure oxygen. From an engineering standpoint, the single-gas atmosphere offered advantages in minimizing weight and leakage, in system simplicity and reliability, and in the extravehicular suit interface.
The first Apollo spacecraft mockup inspection was held at NAA's Space and Information Systems Division. In attendance were Robert R. Gilruth, Director, MSC; Charles W. Frick, Apollo Program Manager, MSC; and Astronaut Virgil I. Grissom.
NASA officials announced the basic decision for the manned lunar exploration program that Project Apollo shall proceed using the lunar orbit rendezvous as the prime mission mode. Based on more than a year of intensive study, this decision for the lunar orbit rendezvous (LOR), rather than for the alternative direct ascent or earth orbit rendezvous modes, enables immediate planning, research and development, procurement, and testing programs for the next phase of space exploration to proceed on a firm basis.
Following a long controversy NASA selected Lunar Orbit Rendezvous (LOR) as the fastest, cheapest, and safest mode to accomplish the Apollo mission. LOR solved the engineering problem of how to land. The EOR or Direct Landing approaches required the Apollo crew to be on their backs during the landing and having to use television or mirrors to see the lunar surface. A lunar crasher stage approach had finally emerged as lesser of evils but raised other issues. LOR allowed a purpose-built lander with a logical helicopter-like crew station layout. Studies indicated LOR would allow landing 6-8 months earlier and cost $9.2 billion vs $ 10.6 billion for EOR or direct. Direct flight by this time would not involve Nova, but a scaled-down two-man spacecraft that could be launched by the Saturn C-5.
Beech Aircraft Corporation was selected by NASA to build the spherical pressure vessels that would be used to store in the supercritical state the hydrogen-oxygen reactants for the spacecraft fuel cell power supply.
In an address to the American Rocket Society lunar missions meeting in Cleveland, Ohio, James A. Van Allen, Chairman of the Department of Physics and Astronomy, State University of Iowa, said that protons of the inner radiation belt could be a serious hazard for extended manned space flight and that nuclear detonations might be able to clean out these inner belt protons, perhaps for a prolonged period, making possible manned orbits about 300 miles above the earth.
Joseph F. Shea, NASA Deputy Director of Manned Space Flight (Systems) , told an American Rocket Society meeting in Cleveland, Ohio, that the first American astronauts to land on the moon would come down in an area within ten degrees on either side of the lunar equator and between longitudes 270 and 260 degrees. Shea said that the actual site would be chosen for its apparent scientific potential and that the Ranger and Surveyor programs would provide badly needed information on the lunar surface. Maps on the scale of two fifths of a mile to the inch would be required, based on photographs which would show lunar features down to five or six feet in size. The smallest objects on the lunar surface yet identified by telescope were about the size of a football field.
NASA Administrator James E. Webb announced that the Mission Control Center for future manned space flights would be located at MSC. The Center would be operational in time for Gemini rendezvous flights in 1964 and later Apollo lunar missions. The overriding factor in the choice of MSC was the existing location of the Apollo Spacecraft Project Office, the astronauts, and Flight Operations Division at Houston.
NASA announced plans for an advanced Saturn launch complex to be built on 80,000 acres northwest of Cape Canaveral. The new facility, Launch Complex 39, would include a building large enough for the vertical assembly of a complete Saturn launch vehicle and Apollo spacecraft.
MSC invited 11 firms to submit research and development proposals for the lunar excursion module (LEM) for the manned lunar landing mission. The firms were Lockheed Aircraft Corporation, The Boeing Airplane Company, Northrop Corporation, Ling-Temco-Vought, Inc., Grumman Aircraft Engineering Corporation, Douglas Aircraft Company, General Dynamics Corporation, Republic Aviation Corporation, Martin- Marietta Company, North American Aviation, Inc., and McDonnell Aircraft Corporation.
As a result of an MSC in-house technical review, NAA was directed to investigate the adaptation of the Gemini-type heatshield to the Apollo spacecraft.
The Office of Systems under NASA's Office of Manned Space Flight summarized its conclusions on the selection of a lunar mission mode based on NASA and industry studies conducted in 1961 and 1962:
A modified method of cooling crew and equipment before launch and during boost was tentatively selected by NAA. Chilled, ground-support-equipment-supplied water-glycol would be pumped through the spacecraft coolant system until 30 seconds before launch, when these lines would be disconnected. After umbilical separation the glycol, as it evaporated at the water boiler, would be chilled by Freon stored in the water tanks.
After the determination of the basic design of the spacecraft sequencer schematic, the effect of the deployment of the forward heatshield before tower jettison was studied by NAA. The sequence of events of both the launch escape system and earth landing system would be affected, making necessary the selection of different sequences for normal flights and abort conditions. A schematic was prepared to provide for these sequencing alternatives.
NAA's evaluation of the emergency blow-out hatch study showed that the linear-shaped explosive charge should be installed on the outside of the command module, with a backup structure and an epoxy-foam-filled annulus on the inside of the module to trap fragmentation and gases. Detail drawings of the crew hatch were prepared for fabrication of actual test sections.
NAA completed control layouts for all three command module windows, including heatshield windows and sightlines. Structural penalties were investigated, window-panes sized, and a weight-comparison chart prepared.
The control layout of the command module aft compartment was released by NAA. This revised drawing incorporated the new umbilical locations in the lower heatshield, relocated the pitch-and-yaw engines symmetrically, eliminated the ground support equipment tower umbilical, and showed the resulting repositioning of tanks and equipment.
A study was made by NAA to determine optimum location and configuration of the spacecraft transponder equipment. The study showed that, if a single deep space instrumentation facility transponder and power amplifier were carried in the command module instead of two complete systems in the service module, spacecraft weight would be reduced, the system would be simplified, and command and service module interface problems would be minimized. Spares in excess of normal would be provided to ensure reliability.
NAA selected the lunar landing radar and completed the block diagram for the spacecraft rendezvous radar. Preliminary design was in progress on both types of radar.
A 70-mm pulse camera was selected by NAA for mission photodocumentation. The camera was to be carried in the upper parachute compartment. Because of the lack of space and the need for a constant power supply for a 35-watt heating element, NAA was considering placing the camera behind the main display panel. The advantages of this arrangement were that the camera would require less power, be available for changing magazines, and could be removed for use outside the spacecraft.
One 16-mm camera was also planned for the spacecraft. This camera would be positioned level with the commander's head and directed at the main display panel. It could be secured to the telescope for recording motion events in real time such as rendezvous, docking, launch and recovery of a lunar excursion module, and earth landing; it could be hand-held for extravehicular activity.
The Hamilton Standard Division of United Aircraft Corporation was selected by NASA as the prime contractor for the Apollo space suit assembly. Hamilton's principal subcontractor was International Latex Corporation, which would fabricate the pressure garment. The contract was signed on October 5.
NAA investigated several docking methods. These included extendable probes to draw the modules together; shock-strut arms on the lunar excursion module with ball locators to position the modules until the spring latch caught, fastening them together; and inflatable Mylar and polyethylene plastic tubing. Also considered was a system in which a crewman, secured by a lanyard, would transfer into the open lunar excursion module. Another crewman in the open command module airlock would then reel in the lanyard to bring the modules together.
Command module (CM) flotation studies were made by NAA, in which the heatshield was assumed to be upright with no flooding having occurred between the CM inner and outer walls. The spacecraft was found to have two stable attitudes: the desired upright position and an unacceptable on-the-side position 128 degrees from the vertical. Further studies were scheduled to determine how much lower the CM center of gravity would have to be to eliminate the unacceptable stable condition and to measure the overall flotation stability when the CM heatshield was extended.
Final design of the command module forward heatshield release mechanism was completed by NAA.
The Manned Space Flight Management Council decided that the Apollo spacecraft design criteria should be worked out under the guidance of the Office of Manned Space Flight (OMSF) Office of Systems. These criteria should be included in the systems specifications to be developed. A monthly exchange of information on spacecraft weight status should take place among the Centers and OMSF. Eldon W. Hall of the Office of Space Systems would be responsible for control of the detailed system weights.
Air recirculation system components of the command module were rearranged to accommodate a disconnect fitting and lines for the center crewman's suit. To relieve an obstruction, the cabin pressure regulator was relocated and a design study drawing was completed.
NAA completed the analysis and design of the Fibreglass heatshield. It duplicated the stiffness of the aluminum heatshield and would be used on all boilerplate spacecraft.
At MSC, J. Thomas Markley was appointed Project Officer for the Apollo spacecraft command and service modules contract, and William F. Rector was named Project Officer for the lunar excursion module contract.
NASA's Office of Manned Space Flight issued Requests for Proposals for a study of the lunar "bus" and studies for payloads which could be handled by the C-1B and C-5 launch vehicles. Contract awards were expected by September 1 and completion of the studies by December 1.
The heatshield for Apollo command module boilerplate model 1 was completed five days ahead of schedule.
The MIT Instrumentation Laboratory ordered a Honeywell 1800 electronic computer from the Minneapolis- Honeywell Regulator Company's Electronic Data Processing Division for work on the Apollo spacecraft navigation system. After installation in 1963, the computer would aid in circuitry design of the Apollo spacecraft computer and would also simulate full operation of a spaceborne computer during ground tests.
The first completed boilerplate model of the Apollo command module, BP- 25, was subjected to a one-fourth-scale impact test in the Pacific Ocean near the entrance to Los Angeles Harbor. Three additional tests were conducted on August 9.
NASA awarded a $141.1 million contract to the Douglas Aircraft Company for design, development, fabrication, and testing of the S-IVB stage, the third stage of the Saturn C-5 launch vehicle. The contract called for 11 S-IVB units, including three for ground tests, two for inert flight, and six for powered flight.
Representatives of the MSC Gemini Project Office and Facilities Division inspected the proposed hangar and office facilities to be refurbished at El Centro Naval Air Facility, Calif., for joint use in the Apollo and Gemini drop-test programs.
At a bidders' conference held at NASA Headquarters, proposals were requested from Centers and industry for two lunar logistic studies: a spacecraft "bus" concept that could be adapted for use first on the Saturn C-1B and later on the Saturn C-5 launch vehicles and a variety of payloads which could be soft-landed near manned Apollo missions. The latter study would determine how a crew's stay on the moon might be extended, how human capability for scientific investigation of the moon might be increased, and how man's mobility on the moon might be facilitated.
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MSC requested the reprogramming of $100,000 of Fiscal Year 1963 funds for advance design on construction facilities. The funds would be transferred from Launch Operations Center to MSC for use on the Little Joe II program at White Sands Missile Range, N. Mex., and would cover Army Corps of Engineers design work on the launch facility.
NASA selected the Aerojet-General Algol solid-propellant motor to power the Little Joe II booster, which would be used to flight-test the command and service modules of the Apollo spacecraft.
A NASA program schedule for the Apollo spacecraft command and service modules through calendar year 1965 was established for financial planning purposes and distributed to the NASA Office of Manned Space Flight, Marshall Space Flight Center, and MSC. The key dates were: complete service module drawing release, May 1, 1963; complete command module drawing release, June 15, 1963; manufacture complete on the first spacecraft, February 1, 1964; first manned orbital flight, May 15, 1965. This tentative schedule depended on budget appropriations.
Of the 11 companies invited to bid on the lunar excursion module on July 25, eight planned to respond. NAA had notified MSC that it would not bid on the contract. No information had been received from the McDonnell Aircraft Corporation and it was questionable whether the Northrop Corporation would respond.
Ten Air Force pilots emerged from a simulated space cabin in which they had spent the previous month participating in a psychological test to determine how long a team of astronauts could work efficiently on a prolonged mission in space. Project Director Earl Alluisi said the experiment had "far exceeded our expectations" and that the men could have stayed in the cabin for 40 days with no difficulty.
NAA suggested that the pitch, roll, and yaw rates required for the Apollo guidance and navigation system would permit reduction in the reaction control thrust.
The NAA spacecraft Statement of Work was revised to include the requirements for the lunar excursion module (LEM) as well as other modifications. The LEM requirements were identical with those given in the LEM Development Statement of Work of July 24.
The command module (CM) would now be required to provide the crew with a one-day habitable environment and a survival environment for one week after touching down on land or water. In case of a landing at sea, the CM should be able to recover from any attitude and float upright with egress hatches free of water.
The first Apollo boilerplate command module, BP-25, was delivered to MSC for water recovery and handling tests. Flotation, water stability, and towing tests were conducted with good results. J. Thomas Markley of MSC described all spacecraft structural tests thus far as "successful."
The second stage (S-IV) of the Saturn C-1 launch vehicle was successfully static-fired for the first time in a ten-second test at the Sacramento, Calif., facility by the Douglas Aircraft Company.
Carl Sagan, University of California astronomer, warned scientists at a lunar exploration conference, Blacksburg, Va., of the need for sterilization of lunar spacecraft and decontamination of Apollo crewmen, pointing out that Lunik II and Ranger IV probably had deposited terrestrial microorganisms on the moon. Even more serious, he said, was the possibility that lunar microorganisms might be brought to earth where they could multiply explosively.
Responsibility for the design and manufacture of the reaction controls for the Apollo command module was shifted from The Marquardt Corporation to the Rocketdyne Division of NAA, with NASA concurrence.
The length of the Apollo service module was increased from 11 feet 8 inches to 12 feet 11 inches to provide space for additional fuel.
The launch escape thrust-vector-control system was replaced by a passive system using a "kicker" rocket as directed by NASA at the June 10-11 design review meeting, The rocket would be mounted at the top of the launch escape system tower and fired tangentially to impart the necessary pitchover motion during the initial phase of abort. The main motor thrust was revised downward from 180, 000 to 155, 000 pounds and aligned 2.8 degrees off the center line. A downrange abort direction was selected; during abort the spacecraft and astronauts would rotate in a heels over head movement.
Robert R. Gilruth, Director of MSC, presented details of the Apollo spacecraft at the Institute of the Aerospace Sciences meeting in Seattle, Wash. During launch and reentry, the three-man crew would be seated in adjacent couches; during other phases of flight, the center couch would be stowed to permit more freedom of movement. The Apollo command module cabin would have 365 cubic feet of volume, with 22 cubic feet of free area available to the crew: "The small end of the command module may contain an airlock; when the lunar excursion module is not attached, the airlock would permit a pressure-suited crewman to exit to free space without decompressing the cabin. Crew ingress and egress while on earth will be through a hatch in the side of the command module."
A preliminary NAA report was completed on a literature search concerning fire hazards in 100 percent oxygen and oxygen-enriched atmospheres. This report showed that limited testing would be warranted.
NAA completed attitude orientation studies, including one on the control of a tumbling command module (CM) following high-altitude abort above 125,000 feet. The studies indicated that the CM stabilization and control system would be adequate during the reentry phase with the CM in either of the two possible trim configurations.
The revised NAA Summary Definitions and Objectives Document was released. This revision incorporated the lunar orbit rendezvous concept, without lunar excursion module integration, and a revised master phasing schedule, reflecting the deletion of the second-stage service module. The NAA Apollo Mission Requirements and Apollo Requirements Specifications were also similarly re-oriented and released.
Preliminary studies were made by NAA to determine radiation instrument location, feasibility of shadow-shielding, and methods of determining direction of incidence of radiation. Preliminary requirements were established for the number and location of detectors and for information display.
NAA established design criteria for materials and processes used in food reconstitution bags. An order was placed for polypropylene material with a contoured mouthpiece. This material would be machined and then heat-fused to a thermoplastic bag.
Layouts of a command module (CM) telescope installation in the unpressurized upper parachute compartment were completed by NAA. The concept was for the telescope to extend ten inches from the left side of the spacecraft. The light path would enter the upper bulkhead through the main display panel to an eyepiece presentation on the commander's side of the spacecraft. A static seal (one-half-inch-thick window) would be used to prevent leakage in the pressurized compartment. The installation was suitable for use in the lunar orbit rendezvous mission and would allow one man in the CM to accomplish docking with full visual control.
A final decision was made by NAA to redesign the command module fuel cell radiator and associated tubing to accommodate a 30-psi maximum pressure drop. Pratt & Whitney Aircraft Division agreed to redesign their pump for this level.
The establishment of a basic command module (CM) airlock and docking design criteria were discussed by NAA and NASA representatives. While NASA preferred a closed-hatch, one-man airlock system, NAA had based its design on an open-hatch, two-man airlock operation.
Another closed-hatch configuration under consideration would entirely eliminate the CM airlock. Astronauts transferring to and from the lunar excursion module would be in a pressurized environment constantly.
The command module waste management system analysis, including a new selection valve, revised tubing lengths, odor removal filter, and three check valves, was completed by NAA for a 5 psia pressure. There was only a small change in the flow rates through the separate branches as a result of the change to 5 psia.
The first tests incorporating data acquisition in the Apollo test program were conducted at El Centro, Calif. They consisted of monitoring data returned by telemetry during a parachute dummy-load test.
An NAA study indicated that the effects of crew motions on spacecraft attitude control would be negligible.
NAA finished structural requirements for a lunar excursion module adapter mating the 154-inch diameter service module to the 260-inch diameter S-IVB stage.
An interim Apollo flight operation plan for Fiscal Year 1963, dated August 28, calling for funding of $489.9 million, was transmitted to NASA Headquarters from MSC. System requirements were under study to determine the feasibility of cost reduction to avoid schedule slippage.
Nine industry proposals for the lunar excursion module were received from The Boeing Company, Douglas Aircraft Company, General Dynamics Corporation, Grumman Aircraft Engineering Corporation, Ling-Temco-Vought, Inc., Lockheed Aircraft Corporation, Martin-Marietta Corporation, Northrop Corporation, and Republic Aviation Corporation. NASA evaluation began the next day.
Two three-month studies of an unmanned logistic system to aid astronauts on a lunar landing mission would be negotiated with three companies, NASA announced. Under a $150,000 contract, Space Technology Laboratories, Inc., would look into the feasibility of developing a general-purpose spacecraft into which varieties of payloads could be fitted. Under two $75,000 contracts, Northrop Space laboratories and Grumman Aircraft Engineering Corporation would study the possible cargoes that such a spacecraft might carry. NASA Centers simultaneously would study lunar logistic: trajectories, launch vehicle adaptation, lunar landing touchdown dynamics, scheduling, and use of roving vehicles on the lunar surface.
Apollo Spacecraft Project Office requested NAA to perform a study of command module-lunar excursion module (CM-LEM) docking and crew transfer operations and recommend a preferred mode, establish docking design criteria, and define the CM-LEM interface. Both translunar and lunar orbital docking maneuvers were to be considered. The docking concept finally selected would satisfy the requirements of minimum weight, design and functional simplicity, maximum docking reliability, minimum docking time, and maximum visibility.
The mission constraints to be used for this study were :
NASA deleted five Apollo mockups, three boilerplate spacecraft, and several ground support equipment items from the NAA contract because of funding limitations.
Apollo command module boilerplate model BP-1 was accepted by NASA and delivered to the NAA Engineering Development Laboratory for land and water impact tests. On September 25, BP-1 was drop-tested with good results. Earth-impact attenuation and crew shock absorption data were obtained.
Apollo command module boilerplate model BP-3, showing the arrangement of the cabin interior, was shipped to MSC.
Fire broke out in a simulated space cabin at the Air Force School of Aerospace Medicine, Brooks Air Force Base, Tex., on the 13th day of a 14-day experiment to determine the effects of breathing pure oxygen in a long-duration space flight. One of the two Air Force officers was seriously injured. The cause of the fire was not immediately determined. The experiment was part of a NASA program to validate the use of a 5 psia pure oxygen atmosphere for the Gemini and Apollo spacecraft.
MSC reported that it had received a completed wooden mockup of the interior arrangement of the Apollo command module (CM). An identical mockup was retained at NAA for design control. Seven additional CM and service module (SM) mockups were planned: a partial SM and partial adapter interface, CM for exterior cabin equipment, complete SM, spacecraft for handling and transportation (two), crew support system, and complete CSM's. A mockup of the navigation and guidance equipment had been completed. A wooden mockup of the lunar excursion module exterior configuration was fabricated by NAA as part of an early study of spacecraft compatibility requirements.
J. Thomas Markley, command and service module Project Officer at MSC, announced details of the space facility to be established by NASA at White Sands Missile Range (WSMR). To be used in testing the Apollo spacecraft's propulsion and abort systems, the WSMR site facilities would include two static-test-firing stands, a control center blockhouse, various storage and other utility buildings, and an administrative services area.
President John F. Kennedy spoke at Rice University, Houston, Tex., where he said:
"Man, in his quest for knowledge and progress, is determined and cannot be deterred. The exploration of space will go ahead, whether we join in it or not, and it is one of the great adventures of all time, and no nation which expects to be the leader of other nations can expect to stay behind in this race for space. . . .
"We choose to go to the moon in this decade and do the other things, not because they are easy, but because they are hard, because that goal will serve to organize and measure the best of our energies and skills, because that challenge is one that we are willing to accept, one we are unwilling to postpone, and one which we intend to win, and the others, too.
"It is for these reasons that I regard the decision last year to shift our efforts in space from low to high gear as among the most important decisions that will be made during my incumbency in the office of the Presidency. . . ."
NASA contracted with the Armour Research Foundation for an investigation of conditions likely to be found on the lunar surface. Research would concentrate first on evaluating the effects of landing velocity, size of the landing area, and shape of the landing object with regard to properties of the lunar soils. Earlier studies by Armour had indicated that the lunar surface might be composed of very strong material. Amour reported its findings during the first week of November.
Deletion of non-critical equipment and improvement of existing systems reduced the weight of the command and service modules by 1,239 pounds, with a target reduction of 1,500 pounds.
Among the items deleted from the command module (CM) were exercise and recreation equipment, personal parachutes and parachute containers located in the couches, individual survival kits, solar radiation garments, and eight-ball displays. A telescope, cameras and magazines considered scientific equipment, and a television monitor were deleted from the CM instrumentation system.
General Dynamics/Convair recommended and obtained NASA's concurrence that the first Little Joe II launch vehicle be used for qualification, employing a dummy payload.
NASA announced that it had completed preliminary plans for the development of the $500-million Mississippi Test Facility. The first phase of a three-phase construction program would begin in 1962 and would include four test stands for static-firing the Saturn C-5 S-IC and S-II stages; about 20 support and service buildings would be built in the first phase. A water transportation system had been selected, calling for improvement of about 15 miles of river channel and construction of about 15 miles of canals at the facility.
The Apollo wind tunnel program was in its eighth month. To date, 2,800 hours of time had been used in 30 government and private facilities.
MSC reported that the three liquid-hydrogen-liquid-oxygen fuel cells would supply the main and emergency power through the Apollo mission except for the earth reentry phase. Two of the fuel cells would carry normal electrical loads and one would supply emergency power. Performance predictions had been met and exceeded in single-cell tests. Complete module tests would begin during the next quarter. The liquid-hydrogen liquid-oxygen reactants for the fuel cell power supply were stored in the supercritical state in spherical pressure vessels. A recent decision had been made to provide heat input to the storage vessels with electrical heaters rather than the water-glycol loop. Three zinc-silver oxide batteries would supply power for all the electrical loads during reentry and during the brief periods of peak loads. One of the batteries was reserved exclusively for the postlanding phase. Eagle Picher Company, Joplin, Mo., had been selected in August as subcontractor for the batteries.
MIT's Lincoln Laboratory began a study program to define Apollo data processing requirements and to examine the problems associated with the unified telecommunications system. The system would permit the use of the lunar mission transponder during near-earth operations and eliminate the general transmitters required by the current spacecraft concept, thus reducing weight, complexity, and cost of the spacecraft system.
MSC reported that Apollo training requirements planning was 40 percent complete. The preparation of specific materials would begin during the first quarter of 1964. The crew training equipment included earth launch and reentry, orbital and rendezvous, and navigation and trajectory control part-task trainers, which were special-purpose simulators. An early delivery would allow extensive practice for the crew in those mission functions where crew activity was time-critical and required development of particular skills. The mission simulators had complete mission capability, providing visual as well as instrument environments. Mission simulators would be located at MSC and at Cape Canaveral.
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MSC outlined a tentative Apollo flight plan:
The freeze-dried food that would be used in the Gemini program would also be provided for the Apollo program. Forty-two pounds of food would be necessary for a 14-day lunar landing mission. Potable water would be supplied by the fuel cells and processed by the environmental control system. A one-day water supply of six pounds per man would be provided at launch as an emergency ration if needed before the fuel cells were fully operative.
The Apollo spacecraft weights had been apportioned within an assumed 90,000 pound limit. This weight was termed a "design allowable." A lower target weight for each module had been assigned. Achievement of the target weight would allow for increased fuel loading and therefore greater operational flexibility and mission reliability. The design allowable for the command module was 9,500 pounds; the target weight was 8,500 pounds. The service module design allowable was 11,500 pounds; the target weight was 11,000 pounds. The S-IVB adapter design allowable and target weight was 3,200 pounds. The amount of service module useful propellant was 40,300 pounds design allowable; the target weight was 37,120 pounds. The lunar excursion module design allowable was 25,500 pounds; the target weight was 24,500 pounds.
MSC reported that Arnold Engineering Development Center facilities at Tullahoma, Tenn., were being scheduled for use in the development of the Apollo reaction control and propulsion systems. The use of the Mark I altitude chamber for environmental tests of the command and service modules was also planned.
The lunar excursion module was defined as consisting of 12 principal systems: guidance and navigation, stabilization and control, propulsion, reaction control, lunar touchdown, structure including landing and docking systems, crew, environmental control, electrical power, communications, instrumentation, and experimental instrumentation. A consideration of prime importance to practically all systems was the possibility of using components from Project Mercury or those under development for Project Gemini.
MSC reported that the lunar excursion module guidance system was expected to use as many components as possible identical to those in the command and service modules. Studies at the MIT Instrumentation Laboratory indicated that the changes required would simplify the computer and continue the use of the same inertial measurement unit and scanning telescope.
Release of the structural design of the Apollo command module was 65 percent complete; 100 percent release was scheduled for January 1 963.
MSC reported that renovation of available buildings at the El Centro Joint Service Parachute Facility was required to support the Apollo earth recovery tests. The Air Force's commitment of a C-133A aircraft to support the qualification tests had been obtained.
MSC reported that the reliability goal for design purposes in the spacecraft Statement of Work for the Apollo mission was 0.9. The probability that the crew would not be subjected to conditions in excess of the stated limits was 0.9, and the probability that the crew would not be subjected to emergency limits was 0.999. The initial Work Statement apportionment for the lunar excursion module was 0.984 for mission success and 0.9995 for crew safety. Other major system elements would require reapportionment to reflect the lunar orbit mission.
MSC reported that meteoroid tests and ballistic ranges had been established at the Ames Research Center, Langley Research Center, and NAA. These facilities could achieve only about one half of the expected velocity of 75,000 feet per second for the critical-sized meteoroid. A measured improvement in the capability to predict penetration would come from a test program being negotiated by NAA with General Motors Corporation, whose facility was capable of achieving particle velocities of 75,000 feet per second.
The external natural environment of the Apollo spacecraft as defined in the December 18, 1961, Statement of Work had been used in the early Apollo design work. The micrometeoroid, solar proton radiation, and lunar surface characteristics were found to be most critical to the spacecraft design.
The pad abort boilerplate command module, BP-6, to qualify the launch escape system, was scheduled for delivery to White Sands Missile Range by mid-April 1963. A pad abort test of BP-6 was scheduled for May 15, 1963.
Rocketdyne Division successfully completed the first full-duration (250-seconds) static firing of the J-2 engine.
NASA signed a $l.55-million contract with Hamilton Standard Division of United Aircraft Corporation and International Latex Corporation for the development of a space suit for the Apollo crewmen. As the prime contractor, Hamilton Standard would have management responsibility for the overall program and would develop a life-support, backpack system to be worn by crewmen during lunar expeditions. International Latex Corporation as subcontractor would fabricate the suit, with Republic Aviation Corporation furnishing human factors information and environmental testing. The suit would allow a crewman greater mobility than previous space suits, enabling him to walk, climb, and bend with relative ease.
The Minneapolis-Honeywell Regulator Company letter subcontract for the Apollo stabilization and control system was suspended by NAA and amended in accordance with the current design concepts,
NASA announced the selection of the International Business Machines Corporation to provide a ground-based computer system for Projects Gemini and Apollo. The computer complex would be part of the mission control center at MSC.
The Lunar and Planetary Laboratory of the University of Arizona, directed by Gerard P. Kuiper, reported that its analysis of lunar photographs taken by Lunik III differed from that announced by Soviet scientists. The most extensive feature of the moon's far side, photographed in 1959, had been named "The Soviet Mountains"; this feature was identified by the Arizona laboratory as an elongated area of bright patches and rays, possibly flat. Another feature, named the "Joliot-Curie Crater" by Soviet scientists, was re-identified by the Arizona laboratory as Mare Novum (New Sea), first identified by German astronomer Julius Franz near the turn of the century.
At the request of NASA, about 300 pieces of Gemini ground support equipment were examined by NAA engineers. It appeared that about 190 items would be usable on the Apollo program.
Faced by opposition of mode selection by Jerome Wiesner, Kennedy's science adviser, NASA let contracts to McDonnell and STL for direct two-man flight modes. Both concluded that it was feasible but would require LH2/LOX stages for descent and ascent from lunar surface, which NASA/STG adamantly opposed. This was also the last stab - for the time being - at 'lunar Gemini'.
The Office of Systems under NASA's Office of Manned Space Flight completed a manned lunar landing mode comparison embodying the most recent studies by contractors and NASA Centers. The report was the outgrowth of the decision announced by NASA on July 11 to continue studies on lunar landing modes while basing planning and procurement primarily on the lunar orbit rendezvous (LOR) technique.
Republic Aviation Corporation selected the Radio Corporation of America to design and build the data acquisition and communications subsystem for Project Fire.
Flight missions of the Apollo spacecraft were to be numerically identified in the future according to the following scheme :
Pad aborts: PA-1, PA-2, etc.
Missions using Little Joe II launch vehicles: A-001, A-002, etc. Missions using Saturn C-1 launch vehicles: A-101, A-102, etc. Missions using Saturn C-1B launch vehicles: A-201, A-202, etc. Missions using Saturn C-5 launch vehicles: A-501, A-502, etc.
The 'A' denoted Apollo, the first digit stood for launch vehicle type or series, and the last two digits designated the order of Apollo spacecraft flights within a vehicle series.
MSC Director Robert R. Gilruth reported to the Manned Space Flight Management Council that the Apollo drogue parachutes would be tested in the Langley Research Center wind tunnels.
NASA announced the signing of a contract with the Space and Information Systems Division of NAA for the development and production of the second stage (S-II) of the Saturn C-5 launch vehicle. The $319.9-million contract, under the direction of Marshall Space Flight Center, covered the production of nine live flight stages, one inert flight stage, and several ground-test units for the advanced Saturn launch vehicle. NAA had been selected on September 11, 1961, to develop the S-II.
NASA announced the realignment of functions under Associate Administrator Robert C. Seamans, Jr. D. Brainerd Holmes assumed new duties as a Deputy Associate Administrator while retaining his responsibilities as Director of the Office of Manned Space Flight. NASA field installations engaged principally in manned space flight projects (Marshall Space Flight Center Manned Spacecraft Center, and Launch Operations Center) would report to Holmes; installations engaged principally in other projects (Ames, Langley, Lewis, and Flight Research Centers, Goddard Space Flight Center, Jet Propulsion Laboratory, and Wallops Station) would report to Thomas F. Dixon, Deputy Associate Administrator for the past year. Previously most field center directors had reported directly to Seamans on institutional matters beyond program and contractual administration.
Elimination of the requirement for personal parachutes nullified consideration of a command module (CM) blowout emergency escape hatch. A set of quick-acting latches for the inward-opening crew hatch would be needed, however, to provide a means of egress following a forced landing. The latches would be operable from outside as well as inside the pressure vessel. Outside hardware for securing the ablative panel over the crew door would be required as well as a method of releasing the panel from inside the CM.
Incandescent lamps would be used for floodlighting the command module because they weighed less than fluorescent lamps and took up less space while increasing reliability and reducing system complexity. A 28- volt lamp was most desirable because of its compatibility with the spacecraft 28-volt dc power system. Laboratory tests with a 28-volt incandescent lamp showed that heat dissipation would not be a problem in the vacuum environment but that a filament or shock mount would have to be developed to withstand vibration. An incandescent quartz lamp was studied because of its small size and high concentration of light.
An NAA digital computer program for calculating command module heatshield and couch system loads and landing stability was successful. Results showed that a five-degree negative-pitch attitude was preferable for land landings.
NAA completed a preliminary design for the deployment of the spacecraft deep space instrumentation facility antenna to the Y axis. The antenna would be shifted into the deploy position by actuation of a spring-loaded swing-out arm.
The revised NAA recommendation for a personal communications system consisted of a duplex capability with a simplex backup. Simultaneous transmission of voice and biomedical data with a break-in capability would be possible. Two changes in spacecraft VHF equipment would be needed: a dual-channel in place of a single-channel receiver, and a diplexer for use during duplex operation.
The feasibility of using the Gemini fuel cell for the lunar excursion module was studied by NAA. However, because of modifications to meet Apollo control and auxiliary requirements, the much lighter Gemini system would ultimately weigh about as much as the Apollo fuel cell. In addition, the Gemini fuel cell schedule would slip if the system had to be adapted to the Apollo mission.
An NAA study on the shift of the command module center of gravity during reentry proposed moving the crew and couches about ten inches toward the aft equipment bay and then repositioning them for landing impact.
A review of body angles used for the current couch geometry disclosed that the thigh-to-torso angle could be closed sufficiently for a brief period during reentry to shorten the overall couch length by the required travel along the Z-Z axis. The more acute angle was desirable for high g conditions. This change in the couch adjustment range, as well as a revision in the lower leg angle to gain structure clearance, would necessitate considerable couch redesign.
Proposed designs for view port covers on the crew-hatch window, docking ports, and earth landing windows were prepared by NAA. Design planning called for these port covers to be removed solely in the space environment. (Crew members would not use such windows during launch and reentry phases.) NAA,
NASA announced that the Douglas Aircraft Company had been awarded a $2.25million contract to modify the S-IVB stage for use in the Saturn C- 1B program.
NAA completed the firm-cost proposal for the definitive Apollo program and submitted it to NASA. MSC had reviewed the contract package and negotiated a program plan position with NAA.
The valves of the command module (CM) environmental control system were modified to meet the 5.0 psia oxygen operating requirements. All oxygen partial pressure controls were deleted from the system and the relief pressure setting of 7 +/- 0.2 psia was changed to 6 +/- 0.2 psia. The CM now could be repressurized from 0 to 5.0 psia in one hour.
NAA completed a study of reentry temperatures. Without additional cooling, space suit inlet temperatures were expected to increase from 50 degrees F at 100,000 feet to 90 degrees F at spacecraft parachute deployment. The average heat of the command module inner wall was predicted not to exceed 75 degrees F at parachute deployment and 95 degrees F on landing, but then to rise to nearly 150 degrees F.
The technique tentatively selected by NAA for separating the command and service modules from lower stages during an abort consisted of firing four 2000-pound-thrust posigrade rockets mounted on the service module adapter. With this technique, no retrorockets would be needed on the S-IV or S-IVB stages. Normal separation from the S-IVB would be accomplished with the service module reaction control system.
A new launch escape tower configuration with an internal structure that would clear the launch escape motor exhaust plume at 30,000 feet was designed and analyzed by NAA. Exhaust impingement was avoided by slanting the diagonal members in the upper bay toward the interior of the tower and attaching them to a ring.
NAA completed the release of the layout and preliminary design of command module crew accessories and survival equipment.
The Amour Research Foundation reported to NASA that the surface of the moon might not be covered with layers of dust. The first Armour studies showed that dust particles become harder and denser in a higher vacuum environment such as that of the moon, but the studies had not proved that particles eventually become bonded together in a rocket substance as the vacuum increases.
Four "hot spots" on the moon were reported to have been discovered by Bruce C. Murray and Robert L. Wildey of California Institute of Technology, using a new telescope with a heat-sensitive, gold-plated mirror to detect infrared radiation. The two space scientists speculated that hot spots could indicate large areas of bare rock exposed on the lunar surface. The spots were discovered during a survey of the moon which also revealed that the lunar surface became colder at night than previously believed, -270 degrees F compared to -243 degrees F recorded by earlier heat measuring devices. Murray said the new evidence could mean that there were prominences of heat-retaining rock protruding through a thick dust layer on the lunar surface.
William L. Gill, Chief of Crew Systems Division's Radiation Branch, MSC, said that the walls of the Apollo spacecraft would provide most of the radiation shielding required for the crew. Astronauts would have special shielding devices only for their eyes.
NASA announced that the Grumman Aircraft Engineering Corporation had been selected to build the lunar excursion module of the three-man Apollo spacecraft under the direction of MSC. The contract, still to be negotiated, was expected to be worth about $350 million, with estimates as high as $1 billion by the time the project would be completed.
"Not one or two men will make the landing on the moon, but, figuratively, the entire Nation." That is how NASA's Deputy Administrator, Hugh L. Dryden, described America's commitment to Apollo during a speech in Washington, D.C. "What we are buying in our national space program," Dryden said, "is the knowledge, the experience, the skills, the industrial facilities, and the experimental hardware that will make the United States first in every field of space exploration. . . . The investment in space progress is big and will grow, but the potential returns on the investment are even larger. And because it concerns us all, scientific progress is everyone's responsibility. Every citizen should understand what the space program really is about and what it can do."
The Manned Spacecraft Center (MSC) and the Raytheon Company came to terms on the definitive contract for the Apollo spacecraft guidance computer.
North American Aviation, Inc., selected the Aerospace Electrical Division of Westinghouse Electric Corporation to build the power conversion units for the command module (CM) electrical system. The units would convert direct current from the fuel cells to alternating current.
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The Aerojet-General Corporation reported completion of successful firings of the prototype service propulsion engine. The restartable engine, with an ablative thrust chamber, reached thrusts up to 21,500 pounds. (Normal thrust rating for the service propulsion engine is 20,500.)
Four Navy officers were injured when an electrical spark ignited a fire in an altitude chamber, near the end of a 14-day experiment at the U.S. Navy Air Crew Equipment Laboratory, Philadelphia, Pa. The men were participating in a NASA experiment to determine the effect on humans of breathing pure oxygen for 14 days at simulated altitudes.
About 100 Grumman Aircraft Engineering Corporation and MSC representatives began seven weeks of negotiations on the lunar excursion module (LEM) contract. After agreeing on the scope of work and on operating and coordination procedures, the two sides reached fiscal accord. Negotiations were completed on January 3, 1963. Eleven days later, NASA authorized Grumman to proceed with LEM development.
North American defined requirements for the command and service modules (CSM) stabilization and control system.
NASA invited ten industrial firms to submit bids by December 7 for a contract to build a control center at MSC and to integrate ground operational support systems for Apollo and the rendezvous phases of Gemini. On January 28, 1963, NASA announced that the contract had been awarded to the Philco Corporation, a subsidiary of the Ford Motor Company.
A Goddard Space Flight Center report summarizing recommendations for ground instrumentation support for the near-earth phases of the Apollo missions was forwarded to the Apollo Task Group of the NASA Headquarters Office of Tracking and Data Acquisition (OTDA). This report presented a preliminary conception of the Apollo network.
The tracking network would consist of stations equipped with 9-meter (30foot) antennas for near-earth tracking and communications and of stations having 26-meter (85-foot) antennas for use at lunar distances. A unified S-band system, capable of receiving and transmitting voice, telemetry, and television on a single radio-frequency band, was the basis of the network operation.
On March 12, 1963, during testimony before a subcommittee of the House Committee on Science and Astronautics, Edmond C. Buckley, Director of OTDA, described additional network facilities that would be required as the Apollo program progressed. Three Deep Space Instrumentation Facilities with 26-meter (85- foot) antennas were planned: Goldstone, Calif. (completed); Canberra, Australia (to be built); and a site in southern Europe (to be selected). Three new tracking ships and special equipment at several existing network stations for earth-orbit checkout of the spacecraft would also be needed.
At a news conference in Cleveland, Ohio, during the 10-day Space Science Fair there, NASA Deputy Administrator Hugh L. Dryden stated that inflight practice at orbital maneuvering was essential for lunar missions. He believed that landings would follow reconnaissance of the moon by circumlunar and near- lunar-surface flights.
NASA awarded a $2.56 million contract to Ling-Temco-Vought, Inc. (LTV), to develop the velocity package for Project Fire, to simulate reentry from a lunar mission. An Atlas D booster would lift an instrumented payload (looking like a miniature Apollo CM) to an altitude of 122,000 meters (400,000 feet). The velocity package would then fire the reentry vehicle into a minus 15 degree trajectory at a velocity of 11,300 meters (37,000 feet) per second. On December 17, Republic Aviation Corporation, developer of the reentry vehicle, reported that design was 95 percent complete and that fabrication had already begun.
MSC released a sketch of the space suit assembly to be worn on the lunar surface. It included a portable life support system which would supply oxygen and pressurization and would control temperature, humidity, and air contaminants. The suit would protect the astronaut against solar radiation and extreme temperatures. The helmet faceplate would shield him against solar glare and would be defrosted for good visibility at very low temperatures. An emergency oxygen supply was also part of the assembly.
Four days earlier, MSC had added specifications for an extravehicular suit communications and telemetry (EVSCT) system to the space suit contract with Hamilton Standard Division of United Aircraft Corporation. The EVSCT system included equipment for three major operations:
Representatives of Hamilton Standard and International Latex Corporation (ILC) met to discuss mating the portable life support system to the ILC space suit configuration. As a result of mockup demonstrations and other studies, over-the-shoulder straps similar to those in the mockup were substituted for the rigid "horns."
MSC Director Robert R. Gilruth reported to the Manned Space Flight (MSF) Management Council that formal negotiations between NASA and North American on the Apollo spacecraft development contract would begin in January 1963. He further informed the council that the design release for all Apollo systems, with the exception of the space suit, was scheduled for mid-1963; the suit was scheduled for January 1964.
MSC officials met with representatives of Jet Propulsion Laboratory (JPL) and the NASA Office of Tracking and Data Acquisition (OTDA). They discussed locating the third Deep Space Instrumentation Facility (DSIF) in Europe instead of at a previously selected South African site. JPL had investigated several European sites and noted the communications gap for each. MSC stated that a coverage gap of up to two hours was undesirable but not prohibitive. JPL and OTDA agreed to place the European station where the coverage gap would be minimal or nonexistent. However, the existence of a communications loss at a particular location would not be an overriding factor against a site which promised effective technical and logistic support and political stability. MSC agreed that this was a reasonable approach.
North American completed a study of CSM-LEM transposition and docking. During a lunar mission, after the spacecraft was fired into a trajectory toward the moon, the CSM would separate from the adapter section containing the LEM. It would then turn around, dock with the LEM, and pull the second vehicle free from the adapter. The contractor studied three methods of completing this maneuver: free fly-around, tethered fly- around, and mechanical repositioning. Of the three, the company recommended the free fly-around, based on NASA's criteria of minimum weight, simplicity of design, maximum docking reliability, minimum time of operation, and maximum visibility.
Also investigated was crew transfer from the CM to the LEM, to determine the requirements for crew performance and, from this, to define human engineering needs. North American concluded that a separate LEM airlock was not needed but that the CSM oxygen supply system's capacity should be increased to effect LEM pressurization.
On November 29, North American presented the results of docking simulations, which showed that the free flight docking mode was feasible and that the 45-kilogram (100-pound) service module (SM) reaction control system engines were adequate for the terminal phase of docking. The simulations also showed that overall performance of the maneuver was improved by providing the astronaut with an attitude display and some form of alignment aid, such as probe.
AC Spark Plug Division of General Motors Corporation assembled the first CM inertial reference integrating gyro (IRIG) for final tests and calibration. Three IRIGs in the CM navigation and guidance system provided a reference from which velocity and attitude changes could be sensed. Delivery of the unit was scheduled for February 1963.
North American reported several problems involving the CM's aerodynamic characteristics; their analysis of CM dynamics verified that the spacecraft could - and on one occasion did - descend in an apex-forward attitude. The CM's landing speed then exceeded the capacity of the drogue parachutes to reorient the vehicle; also, in this attitude, the apex cover could not be jettisoned under all conditions. During low-altitude aborts, North American went on, the drogue parachutes produced unfavorable conditions for main parachute deployment.
Extensive material and thermal property tests indicated that a Fiberglas honeycomb matrix bonded to the steel substructure was a promising approach for a new heatshield design for the CM.
North American made a number of changes in the layout of the CM:
MSC awarded a $222,000 contract to the Air Force Systems Command for wind tunnel tests of the Apollo spacecraft at its Arnold Engineering Development Center, Tullahoma, Tenn.
Collins Radio Company selected Motorola, Inc., Military Electronics Division, to develop and produce the spacecraft S-band transponder. The transponder would aid in tracking the spacecraft in deep space; also, it would be used to transmit and receive telemetry signals and to communicate between ground stations and the spacecraft by FM voice and television links. The formal contract with Motorola was awarded in mid-February 1963.
Also, Collins awarded a contract to the Leach Corporation for the development of command and service module (CSM) data storage equipment. The tape recorders must have a five-hour capacity for collection and storage of data, draw less than 20 watts of power, and be designed for in-flight reel changes.
The MSC Apollo Spacecraft Project Office (ASPO) outlined the photographic equipment needed for Apollo missions. This included two motion picture cameras (16- and 70-mm) and a 35-mm still camera. It was essential that the camera, including film loading, be operable by an astronaut wearing pressurized gloves. On February 25, 1963, NASA informed North American that the cameras would be government furnished equipment.
The U.S. Army Corps of Engineers, acting for NASA, awarded a $3.332 million contract to four New York architectural engineering firms to design the Vertical Assembly Building (VAB) at Cape Canaveral. The massive VAB became a space-age hangar, capable of housing four complete Saturn V launch vehicles and Apollo spacecraft where they could be assembled and checked out. The facility would be 158.5 meters (520 feet high) and would cost about $100 million to build. Subsequently, the Corps of Engineers selected Morrison-Knudson Company, Perini Corp., and Paul Hardeman, Inc., to construct tile VAB.
The first test of the Apollo main parachute system, conducted at the Naval Air Facility, El Centro, Calif., foreshadowed lengthy troubles with the landing apparatus for the spacecraft. One parachute failed to inflate fully, another disreefed prematurely, and the third disreefed and inflated only after some delay. No data reduction was possible because of poor telemetry. North American was investigating.
At a meeting held at Massachusetts Institute of Technology (MIT) Instrumentation Laboratory, representatives of MIT, MSC, Hamilton Standard Division, and International Latex Corporation examined the problem of an astronaut's use of optical navigation equipment while in a pressurized suit with helmet visor down. MSC was studying helmet designs that would allow the astronaut to place his face directly against the helmet visor; this might avoid an increase in the weight of the eyepiece. In February 1963, Hamilton Standard recommended adding corrective devices to the optical system rather than adding corrective devices to the helmet or redesigning the helmet. In the same month, ASPO set 52.32 millimeters 2.06 inches as the distance of the astronaut's eye away from the helmet. MIT began designing a lightweight adapter for the navigation instruments to provide for distances of up to 76.2 millimeters (3 inches).
The General Electric Policy Review Board, established by the MSF Management Council, held its first meeting. On February 9, the General Electric Company (GE) had been selected by NASA to provide integration analysis (including booster-spacecraft interface), ensure reliability of the entire space vehicle, and develop and operate a checkout system. The Policy Review Board was organized to oversee the entire GE Apollo effort.
With NASA's concurrence, North American released the Request For Proposals on the Apollo mission simulator. A simulated CM, an instructor's console, and a computer complex now supplanted the three part- task trainers originally planned. An additional part-task trainer was also approved. A preliminary report describing the device had been submitted to NASA by North American. The trainer was scheduled to be completed by March 1964.
NASA Administrator James E. Webb, in a letter to the President, explained the rationale behind the Agency's selection of lunar orbit rendezvous (rather than either direct ascent or earth orbit rendezvous) as the mode for landing Apollo astronauts on the moon. Arguments for and against any of the three modes could have been interminable: "We are dealing with a matter that cannot be conclusively proved before the fact," Webb said. "The decision on the mode . . . had to be made at this time in order to maintain our schedules, which aim at a landing attempt in late 1967."
The first static firing of the Apollo tower jettison motor, under development by Thiokol Chemical Corporation, was successfully performed.
NASA authorized North American's Columbus, Ohio, Division to proceed with a LEM docking study.
Northrop Corporation's Ventura Division, prime contractor for the development of sea-markers to indicate the location of the spacecraft after a water landing, suggested three possible approaches:
MSC officials, both in Houston and at the Preflight Operations Division at Cape Canaveral, agreed on a vacuum chamber at the Florida location to test spacecraft systems in a simulated space environment during prelaunch checkout.
The first working model of the crew couch was demonstrated during an inspection of CM mockups at North American. As a result, the contractor began redesigning the couch to make it lighter and simpler to adjust. Design investigation was continuing on crew restraint systems in light of the couch changes. An analysis of acceleration forces imposed on crew members during reentry at various couch back and CM angles of attack was nearing completion.
MSC Director Robert R. Gilruth reported to the MSF Management Council that tests by Republic Aviation Corporation, the U.S. Air Force School of Aerospace Medicine SAM at Brooks Air Force Base, Tex., and the U.S. Navy Air Crew Equipment Laboratory (ACEL) at Philadelphia, Pa., had established that, physiologically, a spacecraft atmosphere of pure oxygen at 3.5 newtons per square centimeter (five pounds per square inch absolute (psia)) was acceptable. During the separate experiments, about 20 people had been exposed to pure oxygen environments for periods of up to two weeks without showing adverse effects. Two fires had occurred, one on September 10 at SAM and the other on November 17 at ACEL. The cause in both cases was faulty test equipment. On July 11, NASA had ordered North American to design the CM for 3.5 newtons per square centimeter (5-psia), pure-oxygen atmosphere.
MSC prognosticated that, during landing, exhaust from the LEM's descent engine would kick up dust on the moon's surface, creating a dust storm. Landings should be made where surface dust would be thinnest.
North American delivered CM boilerplate (BP) 3, to Northrop Ventura, for installation of an earth-landing system. BP-3 was scheduled to undergo parachute tests at El Centro, Calif., during early 1963.
The Minneapolis-Honeywell Regulator Company submitted to North American cost proposal and design specifications on the Apollo stabilization and control system, based upon the new Statement of Work drawn up on December 17.
North American selected Radiation, Inc., to develop the CM pulse code modulation (PCM) telemetry system. The PCM telemetry would encode spacecraft data into digital signals for transmission to ground stations. The $4.3 million contract was officially announced on February 15, 1963.
Lockheed Propulsion Company successfully static fired four launch escape system pitch-control motors. In an off-the-pad or low-altitude abort, the pitch-control motor would fix the trajectory of the CM after its separation from the launch vehicle.
North American's Rocketdyne Division completed the first test firings of the CM reaction control engines.
MSC reported that the general arrangement of the CM instrument panel had been designed to permit maximum manual control and flight observation by the astronauts.
North American reported three successful static firings of the launch escape motor. The motor would pull the CM away from the launch vehicle if there were an abort early in a mission.
In the first of a series of reliability-crew safety design reviews on all systems for the CM, North American examined the spacecraft's environmental control system (ECS). The Design Review Board approved the overall ECS concept, but made several recommendations for further refinement. Among these were:
![]() | Apollo - Grumman Aircraft Engineering Corp. artist's concept of Lunar Module 5 Credit: NASA. 27,324 bytes. 466 x 444 pixels. |
MSC Flight Operations Division examined the operational factors involved in Apollo water and land landings. Analysis of some of the problems leading to a preference for water landing disclosed that:
The contract for the development and production of the CSM C-band transponder was awarded to American Car and Foundry Industries, Inc., by Collins Radio Company. The C-band transponder was used for tracking the spacecraft. Operating in conjunction with conventional, earth-based, radar equipment, it transmitted response pulses to the Manned Space Flight Network,
Grumman agreed to use existing Apollo components and subsystems, where practicable, in the LEM This promised to simplify checkout and maintenance of spacecraft systems.
NASA and General Dynamics/Convair (GD/C) began contract negotiations on the Little Joe II launch vehicle, which was used to flight-test the Apollo launch escape system. The negotiated cost was nearly $6 million. GD/C had already completed the basic structural design of the vehicle.
MSC prepared the Project Apollo lunar landing mission design. This plan outlined ground rules, trajectory analyses, sequences of events, crew activities, and contingency operations. It also predicted possible planning changes in later Apollo flights.
MSC awarded a $3.69 million contract to the Radio Corporation of America
RCA Service Company to design and build two vacuum chambers at MSC. The facility was used in astronaut training and spacecraft environmental testing. using carbon arc: lamps, the chambers simulated the sun's intensity, permitting observation of the effects of solar heating encountered on a lunar mission. At the end of July, MSC awarded RCA another contract (worth $3,341,750) for these solar simulators.
After studying the present radar coverage provided by ground stations for representative Apollo trajectories, North American recommended that existing C-band radars be modified to increase ranging limits. The current capability for tracking to 920 kilometers (500 nautical miles), while satisfactory for near-earth trajectories, was wholly inadequate for later Apollo missions. Tracking capability should be extended to 59,000 kilometers (32,000 nautical miles), North American said; and to improve tracking accuracy, transmitter power and receiver sensitivity should be increased.
Joseph F. Shea, Director of the Office of Systems in NASA's Office of Manned Space Flight (OMSF), briefed MSC officials on the nature and scope of NASA's contract with Bellcomm for systems engineering support. Also, Shea familiarized them with the organization and operation of the Office of Systems vis-a-vis Bellcomm. (Bellcomm, a separate corporation formed by American Telephone and Telegraph and Western Electric early in 1962, specifically at NASA's request, furnished engineering support to the overall Apollo program.) Bellcomm's studies, either in progress or planned, included computer support, environmental hazards, mission safety and reliability, communications and tracking, trajectory analyses, and lunar surface vehicles.
MSC and OMSF agreed that an unmanned Apollo spacecraft must be flown on the Saturn C-1 before a manned flight. SA-10 was scheduled to be the unmanned flight and SA-111, the first manned mission.
North American awarded Airborne Instruments Laboratory, a division of Cutler-Hammer, Inc., a contract for the CM recovery antenna system. NAA,
The MSC Flight Operations Division's Mission Analysis Branch analyzed three operational procedures for the first phase of descent from lunar orbit:
(Apocynthion and pericynthion are the high and low points, respectively, of an object in orbit around the moon (as, for example, a spacecraft sent from earth). Apolune and perilune also refer to these orbital parameters, but these latter two words apply specifically to an object launched from the moon itself.)
Representatives of North American, Langley Research Center, Ames Research Center, and MSC discussed CM reentry heating rates. They agreed on estimates of heating on the CM blunt face, which absorbed the brunt of reentry, but afterbody heating rates were not as clearly defined. North American was studying Project Mercury flight data and recent Apollo wind tunnel tests to arrive at revised estimates.
President John F. Kennedy sent his budget request for Fiscal Year 1964 to Congress. The President recommended a NASA appropriation of $5.712 billion, $3.193 billion of which was for manned space flight. Apollo received a dramatic increase - $1.207 billion compared with $435 million the previous year. NASA Administrator James E. Webb nonetheless characterized the budget, about half a billion dollars less than earlier considered, as one of "austerity." While it would not appreciably speed up the lunar landing timetable, he said, NASA could achieve the goal of placing a man on the moon within the decade.
Christopher C. Kraft, Jr., of MSC's Flight Operations Division (FOD), advised ASPO that the digital up-data link being developed for the Gemini program appeared acceptable for Apollo as well. In late October 1962, representatives of FOD and ASPO had agreed that an independent up-data link a means by which the ground could feed current information to the spacecraft's computer during a mission was essential for manned Apollo flights. Kraft proposed that the Gemini-type link be used for Apollo as well, and on June 13 MSC ordered North American to include the device in the CM.
NASA's Flight Research Center (FRC) announced the award of a $3.61 million contract to Bell Aerosystems Company of Bell Aerospace Corporation for the design and construction of two manned lunar landing research vehicles. The vehicles would be able to take off and land under their own power, reach an altitude of about 1,220 meters (4,000 feet), hover, and fly horizontally. A fan turbojet engine would supply a constant upward push of five-sixths the weight of the vehicle to simulate the one-sixth gravity of the lunar surface. Tests would be conducted at FRC.
Two aerodynamic strakes were added to the CM to eliminate the danger of a hypersonic apex-forward trim point on reentry. (During a high-altitude launch escape system (LES) abort, the crew would undergo excessive g forces if the CM were to trim apex forward. During a low-altitude abort, there was the potential problem of the apex cover not clearing the CM. The strakes, located in the yaw plane, had a maximum span of one foot and resulted in significant weight penalties.
The Hamilton Standard space suit contract was amended to include supplying space suit communications and telemetry equipment.
The first evaluation of crew mobility in the International Latex Corporation (ILC) pressure suit was conducted at North American to identify interface problems. Three test subjects performed simulated flight tasks inside a CM mockup. CM spatial restrictions on mobility were shown. Problems involving suit sizes, crew couch dimensions, and restraint harness attachment, adjustment, and release were appraised. Numerous items that conflicted with Apollo systems were noted and passed along to ILC for correction in the continuing suit development program.
MSC announced new assignments for the seven original astronauts: L. Gordon Cooper, Jr., and Alan B. Shepard, Jr., would be responsible for the remaining pilot phases of Project Mercury; Virgil I. Grissom would specialize in Project Gemini; John H. Glenn, Jr., would concentrate on Project Apollo; M. Scott Carpenter would cover lunar excursion training; and Walter M. Schirra, Jr., would be responsible for Gemini and Apollo operations and training. As Coordinator for Astronaut Activities, Donald K. Slayton would maintain overall supervision of astronaut duties.
Specialty areas for the second generation were: trainers and simulators, Neil A. Armstrong; boosters, Frank Borman; cockpit layout and systems integration, Charles Conrad, Jr.; recovery system, James A. Lovell, Jr.; guidance and navigation, James A. McDivitt; electrical, sequential, and mission planning, Elliot M. See, Jr.; communications, instrumentation, and range integration, Thomas P. Stafford; flight control systems, Edward H. White II; and environmental control systems, personal equipment, and survival equipment, John W. Young.
Following a technical conference on the LEM electrical power system (EPS), Grumman began a study to define the EPS configuration. Included was an analysis of EPS requirements and of weight and reliability for fuel cells and batteries. Total energy required for the LEM mission, including the translunar phase, was estimated at 61.3 kilowatt-hours. Upon completion of this and a similar study by MSC, Grumman decided upon a three-cell arrangement with an auxiliary battery. Capacity would be determined when the EPS load analysis was completed.
NASA announced the selection of the Philco Corporation as prime contractor for the Mission Control Center (MCC) at MSC. To be operational in mid-1964, MCC would link the spacecraft with ground controllers at MSC through the worldwide tracking network.
Grumman and NASA announced the selection of four companies as major LEM subcontractors:
MSC awarded a contract to Chance Vought Corporation for a study of guidance system techniques for the LEM in an abort during lunar landing.
NASA authorized North American to extend until June 10 the CM heatshield development program. This gave the company time to evaluate and recommend one of the three ablative materials still under consideration. The materials were subjected to tests of thermal performance, physical and mechanical properties, and structural compatibility with the existing heatshield substructure. North American sought also to determine the manufacturing feasibility of placing the materials in a Fiberglas honeycomb matrix bonded to a steel substructure.
Walter C. Williams, MSC's Associate Director, defined the Center's criteria on the location of earth landing sites for Gemini and Apollo spacecraft: site selection as well as mode of landing (i.e., land versus water) for each mission should be considered separately. Constraints on trajectory, landing accuracy, and landing systems must be considered, as well as lead time needed to construct landing area facilities. Both Gemini and Apollo flight planning had to include water as well as land landing modes.Although the Apollo earth landing system was designed to withstand the shock of coming down on varying terrains, some experience was necessary to verify this capability. Because of the complexity of the Apollo mission and because the earth landing system did not provide a means of avoiding obstacles, landing accuracy was even more significant for Apollo than for Gemini. With so many variables involved, Williams recommended that specific landing locations for future missions not be immediately designated.
Aerojet-General Corporation, Sacramento, Calif., began full-scale firings of a service propulsion engine with a redesigned injector baffle.
NASA announced a simplified terminology for the Saturn booster series: Saturn C-1 became "Saturn I," Saturn C-1B became "Saturn IB," and Saturn C-5 became "Saturn V."
MSC issued a definitive contract for $15,029,420 to the Raytheon Company, Space and Information Systems Division, to design and develop the CM onboard digital computer. The contract was in support of the MIT Instrumentation Laboratory, which was developing the Apollo guidance and navigation systems. Announcement of the contract was made on February 11.
The first inertial reference integrating gyro produced by AC Spark Plug was accepted by NASA and delivered to the MIT Instrumentation Laboratory.
NASA selected the Marion Power Shovel Company to design and build the crawler-transport, a device to haul the Apollo space vehicle (Saturn V, complete with spacecraft and associated launch equipment) from the Vertical Assembly Building to the Merritt Island, Fla., launch pad, a distance of about 5.6 kilometers (3.5 miles). The crawler would be 39.6 meters (130 feet) long, 35 meters (115 feet) wide, and 6 meters (20 feet) high, and would weight 2.5 million kilograms (5.5 million pounds). NASA planned to buy two crawlers at a cost of $4 to 5 million each. Formal negotiations began on February 20 and the contract was signed on March 29.
In a reorganization of ASPO, MSC announced the appointment of two deputy managers. Robert O. Piland, deputy for the LEM, and James L. Decker, deputy for the CSM, would supervise cost, schedule, technical design, and production. J. Thomas Markley was named Special Assistant to the Apollo Manager, Charles W. Frick. Also appointed to newly created positions were Caldwell C. Johnson, Manager, Spacecraft Systems Office, CSM; Owen E. Maynard, Acting Manager, Spacecraft Systems Office, LEM; and David W. Gilbert, Manager, Spacecraft Systems Office, Guidance and Navigation.
Grumman began discussions with Rocketdyne on the development of a throttleable LEM descent engine. Engine specifications (helium injected, 10:1 thrust variation) had been laid down by MSC.
The North American Apollo impact test facility at Downey, Calif., was completed. This facility consisted mainly of a large pool with overhead framework and mechanisms for hydrodynamic drop tests of the CM. Testing at the facility began with the drop of boilerplate 3 on March 11.
NASA issued a definitive contract for $6,322,643 to General Dynamics Convair for the Little Joe II test vehicle. A number of changes defined by contract change proposals were incorporated into the final document:
North American selected Bell Aerosystems Company to provide propellant tanks for the CSM reaction control system. These tanks were to be the "positive expulsion" type (i.e., fuel and oxidizer would be contained inside flexible bladder; pressure against one side of the device would force the propellant through the RCS lines).
North American shipped CM boilerplate 19 to Northrop Ventura for use as a parachute test vehicle.
At a meeting of the MSC-MSFC Flight Mechanics Panel, it was agreed that Marshall would investigate "engine-out" capability (i.e., the vehicle's performance should one of its engines fail) for use in abort studies or alternative missions. Not all Saturn I, IB, and V missions included this engine-out capability. Also, the panel decided that the launch escape system would be jettisoned ten seconds after S-IV ignition on Saturn I launch vehicles.
In a reorganization of OMSF, Director D. Brainerd Holmes appointed Joseph F. Shea as Deputy Director for Systems and George M. Low as Deputy Director for Programs. All major OMSF directorates had previously reported directly to Holmes. In the new organizational structure, Director of Systems Studies William A. Lee, Director of Systems Engineering John A. Gautraud, and Director of Integration and Checkout James E. Sloan would report to Shea. Director of Launch Vehicles Milton W. Rosen, Director of Space Medicine Charles H. Roadman, and the Director of Spacecraft and Flight Missions (then vacant) would report to Low. William E. Lilly, Director of Administration, would provide administrative support in both major areas.
MSC issued a Request for Proposals (due by March 13) for a radiation altimeter system. Greater accuracy than that provided by available radar would be needed during the descent to the lunar surface, especially in the last moments before touchdown. Preliminary MSC studies had indicated the general feasibility of an altimeter system using a source-detector-electronics package. After final selection and visual observation of the landing site, radioactive material would be released at an altitude of about 30 meters 100 feet and allowed to fall to the surface. The detector would operate in conjunction with electronic circuitry to compute the spacecraft's altitude. Studies were also under way at MSC on the possibility of using laser beams for range determination.
The MSC Lunar Surface Experiments Panel held its first meeting. This group was formed to study and evaluate lunar surface experiments and the adaptability of Surveyor and other unmanned probes for use with manned missions.
MSC ordered North American to provide batteries, wholly independent of the main electrical system in the CM, to fire all pyrotechnics aboard the spacecraft.
![]() | Apollo - Artist's concept of a Saturn launch Credit: NASA. 31,979 bytes. 379 x 455 pixels. |
NASA announced the signing of a formal contract with The Boeing Company for the S-IC (first stage) of the Saturn V launch vehicle, the largest rocket unit under development in the United States. The $418,820,967 agreement called for the development and manufacture of one ground test and ten flight articles. Preliminary development of the S-IC, which was powered by five F-1 engines, had been in progress since December 1961 under a $50 million interim contract. Booster fabrication would take place primarily at the Michoud Operations Plant, New Orleans, La., but some advance testing would be done at MSFC and the Mississippi Test Operations facility.
Grumman began initial talks with the Bell Aerosystems Company on development of the LEM ascent engine. Complete specifications were expected by March 2.
NASA selected Ford, Bacon, and Davis, Inc., to design MSC's flight acceleration facility, including a centrifuge capable of spinning a simulated CM and its crew at gravity forces equal to those experienced in space flight.
Two aerospace technologists at MSC, James A. Ferrando and Edgar C. Lineberry, Jr., analyzed orbital constraints on the CSM imposed by the abort capability of the LEM during the descent and hover phases of a lunar mission. Their study concerned the feasibility of rendezvous should an emergency demand an immediate return to the CSM.
Ferrando and Lineberry found that, once abort factors are considered, there exist "very few" orbits that are acceptable from which to begin the descent. They reported that the most advantageous orbit for the CSM would be a 147-kilometer (80-nautical-mile) circular one.
The Apollo Mission Planning Panel held its organizational meeting at MSC. The panel's function was to develop the lunar landing mission design, coordinate trajectory analyses for all Saturn missions, and develop contingency plans for all manned Apollo missions.
Membership on the panel included representatives from MSC, MSFC, NASA Headquarters, North American, Grumman, and MIT, with other NASA Centers being called on when necessary. By outlining the most accurate mission plan possible, the panel would ensure that the spacecraft could satisfy Apollo's anticipated mission objectives. Most of the panel's influence on spacecraft design would relate to the LEM, which was at an earlier stage of development than the CSM. The panel was not given responsibility for preparing operational plans to be used on actual Apollo missions, however.
Aviation Daily reported an announcement by Frank Canning, Assistant LEM Project Manager at Grumman, that a Request for Proposals would be issued in about two weeks for the development of an alternate descent propulsion system. Because the descent stage presented what he called the LEM's "biggest development problem," Canning said that the parallel program was essential.
Elgin National Watch Company received a subcontract from North American for the design and development of central timing equipment for the Apollo spacecraft. (This equipment provided time-correlation of all spacecraft time-sensitive events. Originally, Greenwich Mean Time was to be used to record all events, but this was later changed.
Grumman began fabrication of a one-tenth scale model of the LEM for stage separation tests. In launching from the lunar surface, the LEM's ascent engine fires just after pyrotechnic severance of all connections between the two stages, a maneuver aptly called "fire in the hole."
Also, Grumman advised that, from the standpoint of landing stability, a five-legged LEM was unsatisfactory. Under investigation were a number of landing gear configurations, including retractable legs.
NASA amended the GE contract, authorizing the company's Apollo Support Department to proceed with the PACE program. PACE (prelaunch automatic checkout equipment) would be used for spacecraft checkout. It would be computer-directed and operated by remote control.
Grumman began initial discussions with Hamilton Standard on the development of the LEM environmental control system.
MSC "acquired" under a loan agreement an amphibious landing craft from the Army. Equipment to retrieve Apollo boilerplate spacecraft and other objects used in air drops and flotation tests was installed. The vessel, later named the Retriever, arrived at its Seabrook, Tex., docking facility late in June.
As a parallel to the existing Northrop Ventura contract, and upon authorization by NASA, North American awarded a contract for a solid parachute program to the Pioneer Parachute Company. (A solid parachute is one with solid (unbroken) gores; the sole opening in the canopy is a vent at the top. Ringsail parachutes (used on the Northrop Ventura recovery system) have slotted gores. In effect, each panel formed on the gores becomes a "sail.")
The Mission Analysis Branch (MAB) of MSC's Flight Operations Division cited the principal disadvantages of the land recovery mode for Apollo missions. Of primary concern was the possibility of landing in an unplanned area and the concomitant dangers involved. For water recovery, the main disadvantages were the establishment of suitable landing areas in the southern hemisphere and the apex-down flotation problem. MAB believed no insurmountable obstacles existed for either approach.
MSC awarded a $67,000 contract to The Perkin-Elmer Corporation to develop a carbon dioxide measurement system, a device to measure the partial carbon dioxide pressure within the spacecraft's cabin. Two prototype units were to be delivered to MSC for evaluation. About seven months later, a $249,000 definitive contract for fabrication and testing of the sensor was signed.
NASA announced an American agreement with Australia, signed on February 26, that permitted the space agency to build and operate several new tracking stations "down under." A key link in the Jet Propulsion Laboratory's network of Deep Space Instrumentation Facilities would be constructed in Tidbinbilla Valley, 18 kilometers (11 miles) southwest of Canberra. Equipment at this site included a 26-meter (85-foot) parabolic dish antenna and electronic equipment for transmitting, receiving, and processing radio signals from spacecraft. Tracking stations would be built also at Carnarvon and Darwin.
The first Block I Apollo pulsed integrating pendulum accelerometer, produced by the Sperry Gyroscope Company, was delivered to the MIT Instrumentation Laboratory. (Three accelerometers were part of the guidance and navigation system. Their function was to sense changes in spacecraft velocity.)
North American completed construction of Apollo boilerplate (BP) 9, consisting of launch escape tower and CSM. It was delivered to MSC on March 18, where dynamic testing on the vehicle began two days later. On April 8, BP-9 was sent to MSFC for compatibility tests with the Saturn I launch vehicle.
Grumman representatives presented their technical study report on power sources for the LEM. They recommended three fuel cells in the descent stage (one cell to meet emergency requirements), two sets of fluid tanks, and two batteries for peak power loads. For industrial competition to develop the power sources, Grumman suggested Pratt and Whitney Aircraft and GE for the fuel cells, and Eagle-Picher, Electrical Storage Battery, Yardney, Gulton, and Delco-Remy for the batteries.
North American moved CM boilerplate (BP) 6 from the manufacturing facilities to the Apollo Test Preparation Interim Area at Downey, Calif. During the next several weeks, BP-6 was fitted with a pad adapter, an inert launch escape system, and a nose cone, interstage structure, and motor skirt.
Grumman presented its first monthly progress report on the LEM. In accordance with NASA's list of high-priority items, principal engineering work was concentrated on spacecraft and subsystem configuration studies, mission plans and test program investigations, common usage equipment surveys, and preparation for implementing subcontractor efforts.
Grumman began early contract talks with the Marquardt Corporation for development of the LEM reaction control system.
Grumman completed its first "fire-in-the-hole" model test. Even though preliminary data agreed with predicted values, they nonetheless planned to have a support contractor, the Martin Company, verify the findings.
NASA announced signing of the contract with Grumman for development of the LEM. Company officials had signed the document on January 21 and, following legal reviews, NASA Headquarters had formally approved the agreement on March 7. Under the fixed-fee contract (NAS 9-1100) ($362.5 million for costs and $25.4 million in fees) Grumman was authorized to design, fabricate, and deliver nine ground test and 11 flight vehicles. The contractor would also provide mission support for Apollo flights. MSC outlined a developmental approach, incorporated into the contract as "Exhibit B, Technical Approach," that became the "framework within which the initial design and operational modes" of the LEM were developed.
The first stage of the Saturn SA-5 launch vehicle was static fired at MSFC for 144.44 seconds in the first long-duration test for a Block II S-1. The cluster of eight H-1 engines produced 680 thousand kilograms (1.5 million pounds) of thrust. An analysis disclosed anomalies in the propulsion system. In a final qualification test two weeks later, when the engines were fired for 143.47 seconds, the propulsion problems had been corrected.
Homer E. Newell, Director of NASA's Office of Space Sciences, summarized results of studies by Langley Research Center and Space Technology Laboratories on an unmanned lunar orbiter spacecraft. These studies had been prompted by questions of the reliability and photographic capabilities of such spacecraft. Both studies indicated that, on a five-shot program, the probability was 0.93 for one and 0.81 for two successful missions; they also confirmed that the spacecraft would be capable of photographing a landed Surveyor to assist in Apollo site verification.
A bidders' conference was held at Grumman for a LEM mechanically throttled descent engine to be developed concurrently with Rocketdyne's helium injection descent engine. Corporations represented were Space Technology Laboratories; United Technology Center, a division of United Aircraft Corporation; Reaction Motors Division, Thiokol Chemical Corporation; and Aerojet-General Corporation. Technical and cost proposals were due at Grumman on April 8.
John A. Hornbeck, president of Bellcomm, testified before the House Committee on Science and Astronautics' Subcommittee on Manned Space Flight concerning the nature and scope of Bellcomm's support for NASA's Apollo program. In answer to the question as to how Bellcomm would decide "which area would be the most feasible" for a lunar landing, Hornbeck replied, ". . . the safety of the landing - that will be the paramount thing." He said that his company was studying a number of likely areas, but would "not recommend a specific site at the moment." Further, "Preliminary studies . . . suggest that the characteristics of a 'good' site for early exploration might be (1) on a lunar sea, (2) 10 miles (16 kilometers) from a continent, and (3) 10 miles (16 kilometers) from a postmarial crater." This type of site, Hornbeck said, would permit the most scientific activity practicable, and would enable NASA's planners to design future missions for even greater scientific returns.
MSC awarded the Philco Corporation a definitive contract (worth almost $33.8 million) to provide flight information and flight control display equipment (with the exception of the realtime computer complex) for the Mission Control Center at MSC. NASA Headquarters approved the contract at the end of the month.
General Dynamics Convair completed structural assembly of the first launcher for the Little Joe II test program. During the next few weeks, electrical equipment installation, vehicle mating, and checkout were completed. The launcher was then disassembled and delivered to WSMR on April 25, 1963.
North American analyzed lighting conditions in the CM and found that glossy or light-colored garments and pressure suits produced unsatisfactory reflections on glass surfaces. A series of tests were planned to define the allowable limits of reflection on windows and display panel faces to preclude interference with crew performance.
A meeting was held at North American to define CM-space suit interface problem areas. Demonstrations of pressurized International Latex suits revealed poor crew mobility and task performance inside the CM, caused in part by the crew's unavoidably interfering with one another.
Other items received considerable attention: A six-foot umbilical hose would be adequate for the astronaut in the CM. The location of spacecraft water, oxygen, and electrical fittings was judged satisfactory, as were the new couch assist handholds. The astronaut's ability to operate the environmental control system (ECS) oxygen flow control valve while couched and pressurized was questionable. Therefore, it was decided that the ECS valve would remain open and that the astronaut would use the suit control valve to regulate the flow. It was also found that the hand controller must be moved about nine inches forward.
Hamilton Standard Division awarded a contract to ITT/Kellogg for the design and manufacture of a prototype extravehicular suit telemetry and communications system to be used with the portable life support system.
MSC announced the beginning of CM environmental control system tests at the AiResearch Manufacturing Company simulating prelaunch, ascent, orbital, and reentry pressure effects. Earlier in the month, analysis had indicated that the CM interior temperature could be maintained between 294 K (70 degrees F) and 300 K (80 degrees F) during all flight operations, although prelaunch temperatures might rise to a maximum of 302 K (84 degrees F).
The Apollo Mission Planning Panel set forth two firm requirements for the lunar landing mission. First, both LEM crewmen must be able to function on the lunar surface simultaneously. MSC contractors were directed to embody this requirement in the design and development of the Apollo spacecraft systems. Second, the panel established duration limits for lunar operations. These limits, based upon the 48-hour LEM operation requirement, were 24 hours on the lunar surface and 24 hours in flight on one extreme, and 45 surface hours and 3 flight hours on the other. Grumman was directed to design the LEM to perform throughout this range of mission profiles.
Fourth suborbital test of Saturn I. The S-I Saturn stage reached an altitude of 129 kilometers (80 statute miles) and a peak velocity of 5,906 kilometers (3,660 miles) per hour. This was the last of four successful tests for the first stage of the Saturn I vehicle. After 100 seconds of flight, No. 5 of the booster's eight engines was cut off by a preset timer. That engine's propellants were rerouted to the remaining seven, which continued to burn. This experiment confirmed the "engine-out" capability that MSFC engineers had designed into the Saturn I.
MSC reported that stowage of crew equipment, some of which would be used in both the CM and the LEM, had been worked out. Two portable life support systems and three pressure suits and thermal garments were to be stowed in the CM. Smaller equipment and consumables would be distributed between modules according to mission phase requirements.
Grumman met with representatives of North American, Collins Radio Company, and Motorola, Inc., to discuss common usage and preliminary design specifications for the LEM communications system. These discussions led to a simpler design for the S-band receiver and to modifications to the S-band transmitter (required because of North American's design approach).
MSC sent MIT and Grumman radar configuration requirements for the LEM. The descent equipment would be a three-beam doppler radar with a two-position antenna. Operating independently of the primary guidance and navigation system, it would determine altitude, rate of descent, and horizontal velocity from 7,000 meters (20,000 feet) above the lunar surface. The LEM rendezvous radar, a gimbaled antenna with a two-axis freedom of movement, and the rendezvous transponder mounted on the antenna would provide tracking data, thus aiding the LEM to intercept the orbiting CM. The SM would be equipped with an identical rendezvous radar and transponder.
RCA completed a study on ablative versus regenerative cooling for the thrust chamber of the LEM ascent engine. Because of low cooling margins available with regenerative cooling, Grumman selected the ablative method, which permitted the use of either ablation or radiation cooling for the nozzle extension.
MSC reported that preliminary plans for Apollo scientific instrumentation had been prepared with the cooperation of NASA Headquarters, Jet Propulsion Laboratory, and the Goddard Space Flight Center. The first experiments would not be selected until about December 1963, allowing scientists time to prepare proposals. Prime consideration would be given to experiments that promised the maximum return for the least weight and complexity, and to those that were man-oriented and compatible with spacecraft restraints. Among those already suggested were seismic devices (active and passive), and instruments to measure the surface bearing strength, magnetic field, radiation spectrum, soil density, and gravitational field. MSC planned to procure most of this equipment through the scientific community and through other NASA and government organizations.
To provide a more physiologically acceptable load factor orientation during reentry and abort, MSC was considering revised angles for the crew couch in the CM. To reduce the couch's complexity, North American had proposed adjustments which included removable calf pads and a movable head pad.
North American selected two subcontractors to build tankage for the SM: Allison Division of General Motors Corporation to fabricate the fuel and oxidizer tanks; and Airite Products, Inc., those for helium storage.
Grumman began "Lunar Hover and Landing Simulation IIIA," a series of tests simulating a LEM landing. Crew station configuration and instrument panel layout were representative of the actual vehicle.
Through this simulation, Grumman sought primarily to evaluate the astronauts' ability to perform the landing maneuver manually, using semiautomatic as well as degraded attitude control modes. Other items evaluated included the flight control system parameters, the attitude and thrust controller configurations, the pressure suit's constraint during landing maneuvers, the handling qualities and operation of LEM test article 9 as a freeflight vehicle, and manual abort initiation during the terminal landing maneuver.
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Use of the fixed couch required relocation of the main and side display panels and repositioning of the translational and rotational hand controllers. During rendezvous and docking operations, the crew would still have to adjust their normal body position for proper viewing.
Charles W. Frick resigned as ASPO Manager and Robert O. Piland was named Acting ASPO Manager.
North American awarded a $9.5 million letter contract to the Link Division of General Precision, Inc., for the development and installation of two spacecraft simulators, one at MSC and the other at the Launch Operations Center. Except for weightlessness, the trainers would simulate the entire lunar mission, including sound and lighting effects.
Wesley E. Messing, MSC WSMR Operations Manager, notified NASA, North American, and General Dynamics/Convair (GD/C) that Phase I of the range's launch complex was completed. GD/C and North American could now install equipment for the launch of boilerplate 6 and the Little Joe II vehicle.
North American simplified the CM water management system by separating it from the freon system. A 4.5- kilogram (10-pound) freon tank was installed in the left-hand equipment bay. Waste water formed during prelaunch and boost, previously ejected overboard, could now be used as an emergency coolant. The storage capacity of the potable water tank was reduced from 29 to 16 kilograms (64 to 36 pounds) and the tank was moved to the lower equipment bay to protect it from potential damage during landing. These and other minor changes caused a reduction in CM weight and an increase in the reliability of the CM's water management system.
North American chose Simmonds Precision Products, Inc., to design and build an electronic measurement and display system to gauge the service propulsion system propellants. Both a primary and a backup system were required by the contract, which was expected to cost about 2 million.
On the basis of wind tunnel tests and analytical studies, North American recommended a change in the planned test of the launch escape system (LES) using boilerplate 22. In an LES abort, the contractor reported, 18,300 meters (60,000 feet) was the maximum altitude at which high dynamic pressure had to be considered. Therefore North American proposed an abort simulation at that altitude, where maximum dynamic pressures were reached, at a speed of Mach 2. 5.
The abort test would demonstrate two possibly critical areas:
At a mechanical systems meeting at MSC, customer and contractor achieved a preliminary configuration freeze for the LEM. Several features of the design of the two stages were agreed upon:
North American signed a 6 million definitive contract with Lockheed Propulsion Company for the development of solid propellant motors for the launch escape system. Work on the motors had begun on February 13, 1962, when Lockheed was selected.
At ASPO's request, Wayne E. Koons of the Flight Operations Division visited North American to discuss several features of spacecraft landing and recovery procedures. Koon's objective, in short, was to recommend a solution when ASPO and the contractor disagreed on specific points, and to suggest alternate courses when the two organizations agreed. A question had arisen about a recovery hoisting loop. Neither group wanted one, as its installation added weight and caused design changes. In another area, North American wanted to do an elaborate study of the flotation characteristics of the CM. Koons recommended to ASPO that a full-scale model of the CM be tested in an open-sea environment.
There were a number of other cases wherein North American and ASPO agreed on procedures which simply required formal statements of what would be done. Examples of these were:
The Apollo Spacecraft Mission Trajectory Sub-Panel discussed earth parking orbit requirements for the lunar mission. The maximum number of orbits was fixed by the S-IVB's 4.5-hour duration limit. Normally, translunar injection (TLI) would be made during the second orbit. The panel directed North American to investigate the trajectory that would result from injection from the third, or contingency, orbit. The contractor's study must reckon also with the effects of a contingency TLI upon the constraints of a free return trajectory and fixed lunar landing sites.
NASA and General Dynamics/Convair (GD/C) negotiated a second Little Joe II launch vehicle contract. For an additional $337,456, GD/C expanded its program to include the launch of a qualification test vehicle before the scheduled Apollo tests. This called for an accelerated production schedule for the four launch vehicles and their pair of launchers. An additional telemetry system and an instrumentation transmitter system were incorporated in the qualification test vehicle, which was equipped with a simulated payload. At the same time, NASA established earlier launch dates for the first two Apollo Little Joe II missions.
NASA issued a technical note reporting that scientists at Ames Research Center Hypervelocity Ballistic Range, Moffett Field, Calif., were conducting experiments simulating the impact of micrometeoroids on the lunar surface. The experimenters examined the threat of surface debris, called secondary ejecta, that would be thrown from resultant craters. Data indicated that secondary particles capable of penetrating an astronaut's space suit nearly equaled the number of primary micrometeoroids. Thus the danger of micrometeoroid impact to astronauts on the moon may be almost double what was previously thought.
Grumman reported to MSC the results of studies on common usage of communications. Television cameras for the two spacecraft would be identical; the LEM transponder would be as similar as possible to that in the CSM.
Grumman recommended that the LEM reaction control system (RCS) be equipped with dual interconnected tanks, separately pressurized and employing positive expulsion bladders. The design would provide for an emergency supply of propellants from the main ascent propulsion tanks. The RCS oxidizer to fuel ratio would be changed from 2.0:1 to 1.6:1. MSC approved both of these changes.
Grumman reported that it had advised North American's Rocketdyne Division to go ahead with the lunar excursion module descent engine development program. Negotiations were complete and the contract was being prepared for MSC's review and approval. The go-ahead was formally issued on May 2.
NASA, North American, Grumman, and RCA representatives determined the alterations needed to make the CM television camera compatible with that in the LEM: an additional oscillator to provide synchronization, conversion of operating voltage from 115 AC to 28 DC, and reduction of the lines per frame from 400 to 320.
At El Centro, Calif., Northrop Ventura conducted the first of a series of qualification tests for the Apollo earth landing system (ELS). The test article, CM boilerplate 3, was dropped from a specially modified Air Force C-133. The test was entirely successful. The ELS's three main parachutes reduced the spacecraft's rate of descent to about 9.1 meters (30 feet) per second at impact, within acceptable limits.
Astronauts M. Scott Carpenter, Walter M. Schirra, Jr., Neil A. Armstrong, James A. McDivitt, Elliot M. See, Jr., Edward H. White II, Charles Conrad, Jr., and John W. Young participated in a study in LTV's Manned Space Flight Simulator at Dallas, Tex. Under an MSC contract, LTV was studying the astronauts' ability to control the LEM manually and to rendezvous with the CM if the primary guidance system failed during descent.
NASA authorized North American to procure carbon dioxide sensors as part of the environmental control system instrumentation on early spacecraft flights.
MSC announced a reorganization of ASPO:
NASA Associate Administrator Robert C. Seamans, Jr., directed that a Communications and Tracking Steering Panel and a Working Group be organized. They would develop specifications, performance requirements, and implementation plans for the Manned Space Flight Network in support of the Apollo flight missions.
The first meeting of the LEM Flight Technology Systems Panel was held at MSC. The panel was formed to coordinate discussions on all problems involving weight control, engineering simulation, and environment. The meeting was devoted to a review of the status of LEM engineering programs.
MSC Director Robert R. Gilruth announced a division of management responsibilities between operations and development within MSC. Walter C. Williams, Deputy Director for Mission Requirements and Flight Operations, would develop mission plans and rules, crew training, ground support and mission control complexes, and would manage all MSC flight operations. At the same time, he would serve as Director of Flight Operations in the NASA Headquarters OMSF with complete mission authority during flight tests of Mercury, Gemini, and Apollo. James C. Elms, Deputy Director for Development and Programs, would manage all MSC manned space flight projects and would plan, organize, and direct MSC administrative and technical support.
Grumman selected Space Technology Laboratories (STL) to develop and fabricate a mechanically throttled descent engine for the LEM, paralleling Rocketdyne's effort. Following NASA and MSC concurrence, Grumman began negotiations with STL on June 1.
Grumman submitted to NASA a Quality Control Program Plan for the LEM, detailing efforts in management, documentation, training, procurement, and fabrication.
Grumman, reporting on the Lunar Landing Research Vehicle's (LLRV) application to the LEM development program, stated the LLRV could be used profitably to test LEM hardware. Also included was a development schedule indicating the availability of LEM equipment and the desired testing period.
In support of NASA's manned space flight programs, Ames Research Center awarded a $150,000 contract to Westinghouse Electric Corporation for a one-year study of potential physiological damage in space caused by cosmic radiation.
At a meeting on mechanical systems at MSC, Grumman presented a status report on the LEM landing gear design and LEM stowage height. On May 9, NASA had directed the contractor to consider a more favorable lunar surface than that described in the original Statement of Work. Accordingly, Grumman recommended an envelope of LEM S-IVB clearance of 152.4 centimeters (40 inches) for a landing gear radius of 457 centimeters (180 inches). Beyond this radius, a different gear scheme was considered more suitable but would require greater clearances. The landing gear envelope study was extended for one month to establish a stowed height of the LEM above the S-IVB for adapter design.
Grumman representatives met with the ASPO Electrical Systems Panel (ESP). From ESP, the contractor learned that the communications link would handle voice only. Transmission of physiological and space suit data from the LEM to the CM was no longer required. VHF reception of this data and S-band transmission to ground stations was still necessary. In addition, Grumman was asked to study the feasibility of a backup voice transmitter for communications with crewmen on the lunar surface should the main VHF transmitter fail.
NASA Headquarters, MSC, Jet Propulsion Laboratory, MSFC, North American, and Grumman agreed that the LEM and CSM would incorporate phase-coherent S-band transponders. (The S-band system provides a variety of communications services. Being phase-coherent meant that it could also provide Mission Control Center with information about the vehicle's velocity and position, and thus was a means of tracking the spacecraft.) Each would have its own allocated frequencies and would be compatible with Deep Space Instrumentation Facilities.
MIT suggested a major redesign of the Apollo guidance computer to make the CM and LEM computers as similar as possible. NASA approved the redesign and the Raytheon Company, subcontractor for the computer, began work.
Meeting in Bethpage, N. Y., officials from MSC, Grumman, Hamilton Standard, International Latex, and North American examined LEM-space suit interface problems. This session resulted in several significant decisions:
North American demonstrated problems with side-arm controller location and armrest design inside the CM. Major difficulties were found when the subject tried to manipulate controls while wearing a pressurized suit. North American had scheduled further study of these design problems.
MSC Director Robert R. Gilruth reported to the MSF Management Council that the lunar landing mission duration profiles, on which North American would base the reliability design objectives for mission success and crew safety and which assumed a 14-day mission, had been documented and approved. The contractor had also been asked to study two other mission profile extremes, a 14-day mission with 110-hour transearth and translunar transfer times and the fastest practicable lunar landing mission.
The Operational Evaluation and Test Branch of MSC's Flight Operations Division considered three methods of providing a recovery hoisting loop on the CM: loop separate from the spacecraft and attached after landing, use of the existing parachute bridle, and loop installed as part of the CM equipment similar to Mercury and Gemini. Studies showed that the third method was preferable.
Grumman presented its LEM engineering and simulation plans to MSC, stating that their existing facilities and contracted facilities at North American in Columbus, Ohio, and at LTV would be used throughout 1963. Two part-task LEM simulators would be operational at Grumman early in 1964, with a complete mission simulator available in 1965. MSC had approved the contractor's procurement of two visual display systems for use in the simulators.
Rocketdyne reported to Grumman on the LEM descent stage engine development program. Revised measurements for the engine were: diameter, 137 centimeters (54 inches); length, 221 centimeters (87 inches) (30.5 centimeters (twelve inches) more than the original constraint that Grumman had imposed on Rocketdyne).
After a detailed comparison of titanium and aluminum propellant tanks for the LEM descent stage, Grumman selected the lighter titanium.
In its first estimates of reliability for the LEM, Grumman reported a 0.90 probability for mission success and 0.994 for crew safety. (The probabilities required by NASA were 0.984 and 0.9995, respectively.)
Grumman studied the possibility of using the portable life support system lithium hydroxide cartridges in the LEM environmental control system, and determined that such common usage was feasible. This analysis would be verified by tests at Hamilton Standard.
NASA and General Dynamics Convair negotiated a major change on the Little Joe II launch vehicle contract. It provided for two additional launch vehicles which would incorporate the attitude control subsystem (as opposed to the early fixed-fin version). On November 1, MSC announced that the contract amendment was being issued. NASA Headquarters' approval followed a week later.
Grumman completed the LEM M-1 mockup and began installing equipment in the vehicle. Also, the contractor began revising cabin front design to permit comparisons of visibility.
Most CM subsystem designs frozen.
North American announced that it had selected ITT's Industrial Products Division to provide battery chargers for the CSM, designed for an operational lifetime of 40,000 hours.
MSC informed MSFC that the length of the spacecraft-Saturn V adapter had been increased from 807.7 centimeters to 889 centimeters (318 inches to 350 inches). The LEM would be supported in the adapter from a fixed structure on the landing gear.
The $889.3 million definitive Apollo contract with North American was delivered to NASA Headquarters for review and approval. The target date for approval was extended to June 30.
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NASA announced that it would select 10 to 15 new astronauts to begin training in October. Civilian applications were due July 1; those from military personnel, prescreened by their services, were due July 15. New selection criteria reduced the maximum age to 35 years and eliminated the requirement for test pilot certifications.
The Operational Evaluation and Test Branch of MSC's Flight Operations Division made the following recommendations on Apollo postlanding water survival equipment:
Christopher C. Kraft, Jr., of the MSC Flight Operations Division, urged that an up-data link (UDL) be included on the LEM. In general, the UDL would function when a great deal of data had to be transmitted during a time-critical phase. It would also permit utilization of the ground operational support system as a relay station for the transmission of data between the CM and LEM. In case of power failure aboard the LEM, the UDL could start the computer faster and more reliably than a manual voice link, and it could be used to resume synchronization in the computer timing system.
North American completed a backup testing program (authorized by MSC on November 20, 1962) on a number of ablative materials for the CM heatshield. Only one of the materials (Avcoat 5026-39) performed satisfactorily at low temperatures. During a meeting on June 18 at MSC, company representatives discussed the status of the backup heatshield program. This was followed by an Avco Corporation presentation on the primary heatshield development. As a result, MSC directed North American to terminate its backup program. Shortly thereafter, MSC approved the use of an airgun to fill the honeycomb core of the heatshield with ablative material.
NASA issued a $1,946,450 definitive contract to Aerojet-General Corporation for Algol solid-propellant motors for GD/C's Little Joe II vehicles.
D. Brainerd-Holmes announced his resignation as NASA's Deputy Associate Administrator and Director of Manned Space Flight, effective sometime in the fall. He had joined NASA in 1961 and was returning to industry.
The Mission Analysis Branch (MAB) of MSC's Flight Operations Division studied the phenomenon of a spacecraft's "skip" when reentering the earth's atmosphere from lunar trajectories and how that skip relates to landing accuracies.
MSC conducted the final inspection of the Little Joe II launch complex at WSMR.
At its plant in Binghampton, N. Y., Link Division of General Precision, Inc., held a mockup review of the Apollo mission simulator. A number of modifications in the instructor's console were suggested.
NASA Headquarters approved a definitive contract for $35,844,550 with AC Spark Plug for the manufacture and testing of navigation and guidance equipment for the CM. This superseded a letter contract of May 30, 1962.
MSC and Grumman assessed crew visibility requirements for the LEM. The study included a series of helicopter flights in which simulated earthshine lighting conditions and LEM window configurations were combined with helicopter landings along representative LEM trajectories. These flights simulated the LEM's attitude, velocity, range, and dive angle in the final approach trajectory.
MSC reported that crew systems engineers at the Center were assessing feasibility of having the LEM crew stand rather than sit. MSC requested Grumman also to look into having the crew fly the vehicle from a standing position. The concept was formally proposed at the August 27 crew systems meeting and was approved at the NASA-Grumman review of the LEM M-1 mockup on September 16-18.
North American signed (and NASA approved) a definitive contract with Allison Division of General Motors for the service propulsion system propellant tanks.
North American awarded a contract, valued at $2.8 million, to Avien, Inc., to develop the steerable S-band antenna for the CSM.
MSC met with those contractors participating in the development of the LEM guidance and navigation system. Statements of Work for the LEM design concept were agreed upon. (Technical directives covering most of the work had been received earlier by the contractors.)
North American officially froze the design of the CM's stabilization and control system.
MSC Director Robert R. Gilruth reported to the MSF Management Council that the LEM landing gear design freeze was now scheduled for August 31. Grumman had originally proposed a LEM configuration with five fixed legs, but LEM changes had made this concept impractical. The weight and overall height of the LEM had increased, the center of gravity had been moved upward, the LEM stability analysis had expanded to cover a wider range of landing conditions, the cruciform descent stage had been selected, and the interpretation of the lunar model had been revised. These changes necessitated a larger gear diameter than at first proposed. This, in turn, required deployable rather than fixed legs so the larger gear could be stored in the Saturn V adapter. MSC had therefore adopted a four-legged deployable gear, which was lighter and more reliable than the five-legged configuration.
The first full-scale firing of the SM engine was conducted at the Arnold Engineering Development Center. At the start of the shutdown sequence, the engine thrust chamber valve remained open because of an electrical wiring error in the test facility. Consequently the engine ran at a reduced chamber pressure while the propellant in the fuel line was exhausted. During this shutdown transient, the engine's nozzle extension collapsed as a result of excessive pressure differential across the nozzle skin.
MSC announced that it had contracted with the Martin Company to develop a frictionless platform to simulate the reactions of an extravehicular astronaut in five degrees of freedom-pitch, yaw, roll, forward-backward, and side-to-side. MSC Crew Systems Division would use the simulator to test and evaluate space suits, stabilization devices, tethering lines, and tools.
The CSM data storage equipment was modified to incorporate a fast-dump capability. Data could thus be recorded at a low speed for later playback at high speed to ground stations.
NASA announced its concurrence in Grumman's selection of RCA as subcontractor for the LEM electronics subsystems and for engineering support. Under the $40 million contract, RCA was responsible for five LEM subsystem areas: systems engineering support, communications, radar, inflight testing, and ground support. RCA would also fabricate electronic components of the LEM stabilization and control system. (Engineers and scientists from RCA had been working at Grumman on specific projects since February.)
A cluster of two Pioneer tri-conical solid parachutes was tested; both parachutes failed. Because of this unsatisfactory performance, the Pioneer solid-parachute program was officially canceled on July 15.
MSC reported that two portable life support systems would be stowed in the LEM and one in the CM. Resupplying water, oxygen, and lithium hydroxide could be done in a matter of minutes; however, battery recharging took considerably longer, and detailed design of a charger was continuing.
North American reported that mission success predictions continued to be less than the apportioned values. For example, the environmental control subsystem had a predicted mission reliability of 0.9805, compared to a 0.997675 apportionment.
Planning and final details of LTV abort simulation negotiations with Grumman were completed. The abort experiments, to be conducted at LTV's aerospace simulation facility in Dallas, Tex., were scheduled to begin in October.
Grumman completed the LEM circuit design for suit and cabin pressure control systems. Also the contractor formulated a detailed plan for the evaluation of red and white cockpit lighting; equipment for the test had already been received.
North American shipped Apollo CM boilerplate 6 and its ground support equipment to WSMR.
Aero Spacelines' "Pregnant Guppy," a modified Boeing Stratocruiser, won airworthiness certification by the Federal Aviation Agency. The aircraft would be used to transport major Apollo spacecraft and launch vehicle components.
Space Technology Laboratories received Grumman's go-ahead to develop the parallel descent engine for the LEM. At the same time, Grumman ordered Bell Aerosystems Company to proceed with the LEM ascent engine. The contracts were estimated at $18,742,820 and $11,205,415, respectively.
North American held a review of the CM main display console, which would be compatible with the fixed couch and new panel location. The contractor's drawings and comments by the astronauts were then reviewed by MSC.
As proposed by Joseph F. Shea, Deputy Director (Systems), OMSF, about six weeks earlier, the MSF Management Council established the Panel Review Board with broad supervisory and appeal powers over inter-Center panels. Board members were the Deputy Director (Systems), OMSF, and technical experts from MSC, MSFC, and the Launch Operations Center. OMSF's representative was the chairman.
Recommendations of the board were not binding. If a Center Director decided against a board recommendation, he would, however, discuss and clear the proposed action with the Director of OMSF.
When the Panel Review Board assumed its duties, the Space Vehicle Review Board was abolished.
The Marquardt Corporation began testing the prototype engine for the SM reaction control system. Preliminary data showed a specific impulse slightly less than 300 seconds.
North American reported that it had tried several types of restraint systems for the sleeping area in the equipment bay area of the CM. A "net" arrangement worked fairly well and was adaptable to the constant wear garment worn by the crew. However, North American believed that a simpler restraint system was needed, and was pursuing several other concepts.
MSC signed a definitive contract, valued at $36.2 million, with International Business Machines (IBM) for the realtime computer complex in the MSC Mission Control Center. IBM was responsible for the design of the computer center, mission and mathematical analyses, programming equipment engineering, computer and program testing, maintenance and operation, and documentation. The complex, consisting of four IBM 7094 computers with their associated equipment, would monitor and analyze data from Gemini and Apollo missions.
MSC had received 271 applications for the astronaut program. Seventy-one were military pilots (one from the Army, 34 from the Navy, 26 from the Air Force, and 10 from the Marines). Of the 200 civilians applying, three were women.
The Little Joe II qualification test vehicle was shipped from the General Dynamics Convair plant to WSMR, where the test launch was scheduled for August.
North American reported that Lockheed Propulsion Company had successfully completed development testing of the launch escape system pitch control motor.
Grumman presented the results of a study on LEM visibility. A front-face configuration with triangular windows was tentatively accepted by MSC for the ascent stage. Further investigation would be directed toward eliminating the "dead spots" to improve the configuration's visibility.
MSC directed North American to concentrate on the extendable boom concept for CSM docking with the LEM. The original impact type of docking had been modified:
MSC authorized North American to fit the launch escape system with a redundant tower separation device. This equipment incorporated an explosive bolt and shaped charge cutter.
North American, Grumman, and Hamilton Standard, meeting at MSC with Crew Systems Division engineers, agreed that the portable life support system (PLSS) would have three attaching points for stowage in the spacecraft. In addition, it was agreed that the PLSS should not be used for shoulder restraint in the LEM.
Grumman selected Pratt and Whitney to develop fuel cells for the LEM. Current LEM design called for three cells, supplemented by a battery for power during peak consumption beyond what the cells could deliver. Grumman and Pratt and Whitney completed contract negotiations on August 27, and MSC issued a letter go-ahead on September 5. Including fees and royalties, the contract was worth $9.411 million.
Grumman directed the Marquardt Corporation to begin development of the LEM reaction control system thrusters. Negotiations had begun on March 11 on the definitive subcontract, a cost-plus-incentive-fee type with a total estimated cost of $10,871,186.
George E. Mueller, Vice President for Research and Development of Space Technology Laboratories, was named NASA Deputy Associate Administrator for Manned Space Flight to succeed D. Brainerd Holmes, effective September 1.
Grumman authorized Hamilton Standard to begin development of the environmental control system (ECS) for the LEM. The cost-plus-incentive-fee contract was valued at $8,371,465. The parts of the ECS to be supplied by Hamilton Standard were specified by Grumman.
ASPO ordered Grumman to design identical connectors for both ends of the space suit hoses in the LEM. This arrangement, called the "buddy concept," would permit one portable life support system to support two crewmen and thus would eliminate the need for a special suit-to-suit hose.
ASPO reported that a different type of stainless steel would be used for the CM heatshield. The previous type proved too brittle at cryogenic temperatures. Aside from their low temperature properties, the two metals were quite; similar and no fabrication problems were anticipated.
MIT and Grumman representatives discussed installing the inertial measurement unit and the optical telescope in the LEM. Of several possible locations, the top centerline of the cabin seemed most promising. Grumman agreed to provide a preliminary structural arrangement of the guidance components so that MIT could study problems of installation and integration.
North American, NASA, and Grumman representatives discussed three methods of descent from lunar parking orbit:
North American asked MSC if Grumman was designing the LEM to have a thrusting capability with the CSM attached and, if not, did NASA intend to require the additional effort by Grumman to provide this capability. North American had been proceeding on the assumption that, should the service propulsion system (SPS) fail during translunar flight, the LEM would make any course corrections needed to ensure a safe return trajectory.
In what was to have been an acceptance test, the Douglas Aircraft Company static fired the first Saturn S-IV flight stage at Sacramento, Calif. An indication of fire in the engine area forced technicians to shut down the stage after little more than one minute's firing. A week later the acceptance test was repeated, this time without incident, when the vehicle was fired for over seven minutes. (The stage became part of the SA-5 launch vehicle, the first complete Saturn I to fly.)
![]() | Apollo - View of the liftoff of Little Joe II Credit: NASA. 22,339 bytes. 366 x 408 pixels. |
The Panel Review Board held its first meeting at the Launch Operations Center (LOC). The board established an Executive Secretariat, composed of Bert A. Denicke (OMSF), Joachim P. Kuettner (MSFC), Emil P. Bertram (LOC), and Philip R. Maloney (MSC). Among other actions, the board abolished the GE Policy Review Board.
NASA Administrator James E. Webb signed the definitive contract with North American for the development of the Apollo CSM. This followed by almost two years North American's selection as prime contractor, The $938.4 million cost-plus-fixed-fee agreement was the most valuable single research and development contract in American history. The contract called for the initial production (i.e., through May 15, 1965) of 11 mockups, 15 boilerplate vehicles, and 11 production articles.
ITT's Kellogg Division delivered to Hamilton Standard the first operational prototype space suit communications system.
At a meeting on the LEM electrical power system, Grumman presented its latest load analysis, which placed the LEM's mission energy requirements at 76.53 kilowatt-hours. The control energy level for the complete LEM mission had been set at 54 kilowatt-hours and the target energy level at 47.12 kilowatt-hours. Grumman and MSC were jointly establishing ground rules for an electrical power reduction program.
MSC Crew Systems Division conducted mobility tests of the Apollo prototype space suit inside a mockup of the CM. Technicians also tested the suit on a treadmill. The subjects' carbon dioxide buildup did not exceed two percent; their metabolic rates were about 897,000 joules (850 BTU) per hour at vent pressure, 1,688,000 joules at 2.4 newtons per square centimeter (1,600 BTU at 3.5 psi), and 2,320,000 joules at 3.5 newtons per square centimeter (2,200 BTU at 5.0 psi).
MSC completed a comparison of 17-volt and 28-volt batteries for the portable life support system. The study showed that a 28-volt battery would provide comparable energy levels without increase in size and weight and would be compatible with the spacecraft electrical system.
John P. Bryant, of the Flight Operations Division's (FOD) Mission Analysis Branch (MAB), reported to FOD that the branch had conducted a rough analysis of the effects of some mission constraints upon the flexibility possible with lunar launch operations. (As a base, MAB used April and May 1968, called "a typical two-month period.") First, Bryant said, MAB used the mission rules demanded for the Apollo lunar landing (e.g., free-return trajectory; predetermined lunar landing sites; and lighting conditions on the moon - "by far the most restrictive of the lot"). Next, MAB included a number of operational constraints, ones "reasonably representative of those expected for a typical flight," but by no means an "exhaustive" list:
"The consequences," Bryant concluded, "of imposing an ever-increasing number of these flight restrictions is obvious - the eventual loss of almost all operational flexibility. The only solution is . . . (a) meticulous examination of every constraint which tends to reduce the number of available launch opportunities," looking toward eliminating "as many as possible."
An Ad Hoc Rendezvous Working Group was formed at MSC to study the possibility of substituting a unified S-band system for the rendezvous X-band radar on the LEM and CSM.
MSC received proposals for the visual displays for the LEM simulator. Because of the changed shape of that vehicle's windows, however, Grumman had to return those proposals to the original bidders, sending revised proposals to MSC in December. Farrand Optical Company was selected to develop the display, and the Center approved Grumman's choice. Negotiations between Grumman and Farrand were completed during March 1964.
A LEM crew systems meeting was held at Grumman. The standing arrangement proposed for the crew promised to reduce the weight of the LEM by as much as 27.2 kilograms (60 pounds), and would improve crew mobility, visibility, control accessibility, and ingress-egress. Pending more comprehensive analysis, crew systems designers also favored the revised front-face configuration.
The MSF Management Council decided that, as part of the proposed reorganization of NASA Headquarters, a Deputy Associate Administrator for Manned Space Flight would become responsible for all manned space flight activities within NASA.
The Little Joe II qualification test vehicle was launched from White Sands Missile Range, N Mexico. Its objectives were to prove the Little Joe's capability as an Apollo spacecraft test vehicle and to determine base pressures and heating on the missile. These aims were achieved. The lone failure was a malfunction in the destruct system.
North American defined the maximum, nominal, and minimum CM ablation heatshield thicknesses for lunar reentry. The maximum and minimum limits represented variations that might arise as studies progressed.
NASA Associate Administrator Robert C. Seamans, Jr., approved the Lunar Orbiter program. Objectives of the program were reconnaissance of the moon's topography, investigation of its environment, and collection of selenodetic information.
The document called for five flight and three test articles. The Lunar Orbiter spacecraft would be capable of photographing the moon from a distance of 22 miles above the surface. Overall cost of the program was estimated at between $150 and $200 million.
Grumman built a full-scale cardboard model of the LEM to aid in studying problems of cockpit geometry, specifically the arrangement of display panels. This mockup was reviewed by MSC astronauts and the layout of the cockpit was revised according to some of their suggestions.
Also Grumman reported that a preliminary analysis showed the reaction control system plume heating of the LEM landing gear was not a severe problem. (This difficulty had been greatly alleviated by the change from five to four landing legs on the vehicle.
At a meeting at MSC, Grumman representatives submitted the cost proposal for LEM test articles LTA-8 and LTA-9, and suggested a testing program for the two vehicles: LTA-8 should be used for restrained integrated systems testing in the altitude propulsion test facilities at the Atlantic Missile Range; LTA-9 should be used for manned atmospheric tethered operation tests. The contractor also recommended an early flight demonstration program to verify the helicopter tether operation potential, which promised greatly increased mission test capability over fixed-base tether facilities. The tether method (helicopter or fixed- base) should be determined after the verification. LTA-8 should be considered as a constraint to LEM-5, and LTA-9 as a constraint to the lunar landing mission.
MSC reported that design of the control and displays panel for the CM was about 90 percent complete. North American was expected to release the design by September 20. Qualification testing of the panels would begin around December 1.
MSC Flight Operations Division (FOD) recommended a series of water impact tests to establish confidence in the CM's recovery systems under a variety of operating conditions. FOD suggested several air drops with water landings under various test conditions. Among these were release of the main parachutes at impact, deployment of the postlanding antennas, actuation of the mechanical location aids, and activation of the recovery radio equipment.
Director Robert R. Gilruth established the MSC Manned Spacecraft Criteria Board to set up engineering, design, and procedural standards for manned spacecraft and associated systems. The board was composed of Maxime A. Faget, Chairman; James A. Chamberlin; Kenneth S. Kleinknecht; F. John Bailey, Jr.; G. Barry Graves; Jacob C. Moser; and Norman F. Smith, Secretary. Board criteria would become MSC policy; and - unless specific waivers were obtained, compliance by project offices was mandatory.
MSC began a study to define the stability limits of a 457-centimeter (180inch) radius LEM gear configuration. The study, in two phases, sought to examine factors affecting stability (such as lunar slope, touchdown velocity and direction, and the effects of soil mechanics) in direct support of the one-sixth model and full-scale drop test programs and to complete definition of landing capabilities of the LEM.
At El Centro, Calif., CM boilerplate (BP) 3, a parachute test vehicle, was destroyed during tests simulating the new BP-6 configuration (without strakes or apex cover). Drogue parachute descent, disconnect, and pilot mortar fire appeared normal. However, one pilot parachute was cut by contact with the vehicle and its main parachute did not deploy. Because of harness damage, the remaining two main parachutes failed while reefed. Investigation of the BP-3 failure resulting in rigging and design changes on BP-6 and BP-19.
MSC Flight Operations Division (FOD) established a 72-hour lifetime for Apollo recovery aids. This limitation was derived from considerations of possible landing footprints, staging bases, and aircraft range and flying time to the landing areas. Primary location aids were the spacecraft equipment (VHF AM transceiver, VHF recovery beacon, and HE transceiver) and the VHF survival radio. Because of battery limitations, current planning called for only a 24-hour usage of the VHF recovery beacon. If electronic aids were needed beyond this time the VHF survival radio would be used. If the spacecraft were damaged or lost, the VHF survival radio would be the only electronic location aid available. MSC had recently selected the Sperry Phoenix Company to produce the Gemini VHF survival radio, which was expected to meet the Apollo requirements. FOD recommended that the current contract with Sperry Phoenix be extended to provide the units needed for Apollo missions.
MSC announced a $7.658 million definitive contract with Kollsman Instrument Corporation for the CM guidance and navigation optical equipment, including a scanning telescope, sextant, map and data viewer, and related ground support equipment. MSC had awarded Kollsman a letter contract on May 28, 1962, and had completed negotiations for the definitive contract on March 29, 1963. "The newly signed contract calls for delivery of all hardware to AC Spark Plug by August 1, 1964."
MSC ordered North American to make provisions in the CM to permit charging the 28-volt portable life support system battery from the spacecraft battery charger.
On the following day, the Center informed North American also that a new mechanical clock timer system would be provided in the CM for indicating elapsed time from liftoff and predicting time to and duration of various events during the mission.
NASA announced that, in the future, unmanned lunar landing spacecraft e.g., Rangers and Surveyors) will be assembled in "clean rooms" and treated with germ-killing substances to reduce the number of microbes on exposed surfaces. These sterilization procedures, less stringent than earlier methods, were intended to prevent contamination of the lunar surface and, at the same time, avoid damage to sensitive electronic components. Heat sterilization was suspected as one of the reasons for the failure of Ranger spacecraft.
The launch escape system was modified so that, under normal flight conditions, the crew could jettison the tower. On unmanned Saturn I flights, tower jettison was initiated by a signal from the instrument unit of the S-IV (second) stage.
NASA representatives held a formal review of Grumman's LEM M-1 mockup, a full-scale representation of the LEM's crew compartment. MSC decided that (1) the window shape (triangular) and visibility were satisfactory; (2) a standing position for the crew was approved, although, in general, it was believed that restraints restricted crew mobility; (3) the controllers were positioned too low and lacked suitable arm support for fine control; and (4) crew station arrangement was generally acceptable, although specific details required further study.
A tone warning signal was added to the CM instrumentation system. If a system malfunctioned, this warning would be heard through both the master caution and warning subsystem and the astronauts' earphones.
LTV presented the preliminary results of a manual rendezvous simulation study. Their studies indicated that a pilot trained in the technique could accomplish lunar launch and rendezvous while using only two to three percent more fuel than the automatic system.
The AiResearch Manufacturing Company announced that it had been awarded a $20 million definitive contract for the CM environmental system. (AiResearch had been developing the system under a letter contract since 1961.
The space suit umbilical disconnects were being redesigned to the "buddy concept" and for interchangeability between the CM and the LEM. MSC was reviewing methods for a crewman to return to the LEM following space suit failure on the lunar surface.
North American incorporated an automatic radiator control into the CM's environmental control system to eliminate the need for crew attention during lunar orbit.
Recent load analysis at North American placed the power required for a 14-day mission at 577 kilowatt-hours, a decrease of about 80 kilowatt-hours from earlier estimates.
Grumman directed Bell Aerosystems Company to establish the ablative nozzle extension as the primary design for the LEM's ascent stage engine. The radiation-cooled nozzle design, a weight-saving alternative, must be approved by NASA.
MSC made several changes in the CM's landing requirements. Impact attenuation would be passive, except for that afforded by the crew couches and the suspension system. The spacecraft would be suspended from the landing parachutes in a pitch attitude that imposed minimum accelerations on the crew. A crushable structure to absorb landing shock was required in the aft equipment bay area.
President John F. Kennedy, during an address before the United Nations General Assembly, suggested the possibility of Russian-American "cooperation" in space. Though not proposing any specific program, Kennedy stated that, "in a field where the United States and the Soviet Union have a special capacity - the field of space - there is room for new cooperation, for further joint efforts in the regulation and exploration of space. I include among these possibilities," he said, "a joint expedition to the moon. . . . Surely we should explore whether the scientists and astronauts of our two countries - indeed, of all the world - cannot work together in the conquest of space, sending some day in this decade to the moon, not the representatives of a single nation, but the representatives of all humanity."
North American checked out the test fixture that was slated for the astronaut centrifuge training program, resolving interfaces between test fixture, centrifuge, and the test conductor's console, and familiarizing astronauts with controls and displays inside the spacecraft.
On October 1, North American delivered the test fixture to the U.S. Navy Aviation Medical Acceleration Laboratory, where the first phase of the manned centrifuge program was scheduled to begin that month.
MSC advised North American that the television camera in the CM was being modified so that ground personnel could observe the astronauts and flight operations. Television images would be transmitted directly to earth via the Deep Space Instrumentation Facility.
MSC representatives reviewed Grumman's program for thermal testing for the LEM, to be conducted with the test model 2 (TM-2) vehicle. Because the vehicle's configuration had changed so extensively, the Center canceled the currently planned TM-2 ascent stage and ordered another stage to be substituted. TM-2's descent stage needed only small design changes to make it suitable for the program.
North American recommended that the portable life support system in the CM be deleted. Current planning placed two units in the LEM and one in the CM.
At a meeting at MSC, Grumman representatives presented 18 configurations of the LEM electrical power system, recommending a change from three to two fuel cells, still supplemented by an auxiliary battery system, with continued study on tankage design. On December 10, ASPO authorized the contractor to proceed with this configuration.
MSC representatives visited Grumman for a preliminary evaluation of the Apollo space suit integration into the LEM. A suit failure ended the exercise prematurely. Nonetheless, leg and foot mobility was good, but the upper torso and shoulder needed improvement.
On October 11, MSC Crew Systems Division (CSD) tested the suit's mobility with the portable life support system (PLSS). CSD researchers found that the PLSS did not restrict the wearer's movement because the suit supported the weight of the PLSS. Shifts in the center of gravity appeared insignificant. The PLSS controls, because of their location, were difficult to operate, which demanded further investigation.
OMSF, MSC, and Bellcomm representatives, meeting in Washington, D.C., discussed Apollo mission plans: OMSF introduced a requirement that the first manned flight in the Saturn IB program include a LEM. ASPO had planned this flight as a CSM maximum duration mission only.
The interrelationships between all major LEM test vehicles, including all test constraints and documentation requirements, were developed. This logic study, prepared by Grumman and forwarded to MSC, stressed the feasibility of alterations in the LEM test program as needed.
![]() | Apollo - Boilerplate 6 and firing sequence of Apollo-Little Joe Credit: NASA. 14,757 bytes. 363 x 397 pixels. |
Qualification testing began on fuel tanks for the service propulsion system (SPS). The first article tested developed a small crack below the bottom weld, which was being investigated, but pressurization caused no expansion of the tank. During mid-October, several tanks underwent proof testing. And, on November 1, the first SPS helium tank was burst-tested.
MSC awarded Texas Instruments, Inc., a $194,000 contract to study experiments and equipment needed for scientific exploration of the lunar surface. The analysis was to be completed by the end of May 1964.
At a LEM Mechanical Systems Meeting in Houston, Grumman and MSC agreed upon a preliminary configuration freeze for the LEM-adapter arrangement. The adapter would be a truncated cone, 876 centimeters (345 inches) long. The LEM would be mounted inside the adapter by means of the outrigger trusses on the spacecraft's landing gear. This configuration provided ample clearance for the spacecraft, both top and bottom (i.e., between the service propulsion engine bell and the instrument unit of the S-IVB).
At this same meeting, Grumman presented a comparison of radially and laterally folded landing gears (both of 457-centimeter (180-inch) radius). The radial-fold configuration, MSC reported, promised a weight savings of 22-2 kilograms (49 pounds). MSC approved the concept, with an 876-centimeter (345-inch) adapter. Further, an adapter of that length would accommodate a larger, lateral fold gear (508 centimeters (200 inches)), if necessary. During the next several weeks, Grumman studied a variety of gear arrangements (sizes, means of deployment, stability, and even a "bending" gear). At a subsequent LEM Mechanical Systems Meeting, on November 10, Grumman presented data (design, performance, and weight) on several other four-legged gear arrangements - a 457-centimeter (180-inch), radial fold "tripod" gear (i.e., attached to the vehicle by three struts), and 406.4-centimeter (160-inch) and 457-centimeter (180-inch) cantilevered gears. As it turned out, the 406.4-centimeter (160-inch) cantilevered gear, while still meeting requirements demanded in the work statement, in several respects was more stable than the larger tripod gear. In addition to being considerably lighter, the cantilevered design offered several added advantages:
Verne C. Fryklund, Jr., of NASA's Office of Space Sciences (OSS), in a memorandum to MSC Director Robert R. Gilruth, recommended some general guidelines for Apollo scientific investigations of the moon (which OSS already was using). "These guidelines," Fryklund told Gilruth, ". . . should be followed in the preparation of your plans," and thus were "intended to place some specific constraints on studies. . . . The primary scientific objective of the Apollo project," Fryklund said, was, of course, the "acquisition of comprehensive data about the moon." With this as a starting point, he went on, ". . . it follows that the structure of the moon's surface, gross body properties and large-scale measurements of physical and chemical characteristics, and observation of whatever phenomena may occur at the actual surface will be the prime scientific objectives." Basically, OSS's guidelines spelled out what types of activity were and were not part of Apollo's immediate goals. These activities were presumed to be mostly reconnaissance, "to acquire knowledge of as large an area as possible, and by as simple a means as possible, in the limited time available." The three principal scientific activities "listed in order of decreasing importance" were: (1) "comprehensive observation of lunar phenomena," (2) "collection of representative samples," and (3) "emplacement of monitoring equipment."
These guidelines had been arrived at after extensive consultation within NASA as a whole as well as with the scientific community.
NASA announced the appointment of Joseph F. Shea as ASPO Manager effective October 22. He had been Deputy Director (Systems) in OMSF. George M. Low, OMSF Deputy Director (Programs), would direct the Systems office as well as his own. Robert O. Piland, Acting Manager of ASPO since April 3, resumed his former duties as Deputy Manager.
At MSC, the Spacecraft Technology Division reported to ASPO the results of a study on tethered docking of the LEM and CSM. The technology people found that a cable did not reduce the impact velocities below those that a pilot could achieve during free flyaround, nor was fuel consumption reduced. In fact, when direct control of the spacecraft was attempted, the tether proved a hindrance and actually increased the amount of fuel required.
NASA Administrator James E. Webb announced a major reorganization of NASA Headquarters, effective November 1, to consolidate management of major programs and direction of research and development centers and to realign Headquarters management of agency-wide support functions. On October 28, NASA Headquarters announced a similar reorganization within OMSF, also to take effect on November I, to strengthen NASA Headquarters' control of the agency's manned space flight programs. In effect, these administrative adjustments "recombined program and institutional management by placing the field centers under the Headquarters program directors instead of under general management (i.e., the Associate Administrator)."
LTV announced the results of tests performed by astronauts in the Manned Space Flight Mission Simulator in Dallas, Tex. These indicated that, should the primary guidance and navigation system fail, LEM pilots could rendezvous with the CM by using a circular slide rule to process LEM radar data.
Langley Research Center's Lunar Landing Research Facility was nearing completion. A gantry structure 121.9 meters (400 feet) long and 76.2 meters (250 feet) high would suspend a model of the LEM. It would sustain five-sixths of the model's weight, simulating lunar gravity, and thus would enable astronauts to practice lunar landings.
ASPO established criteria for combustion stability in the service propulsion engine. The engine had to recover from any instability, whether induced or spontaneous, within 20 milliseconds during qualification testing.
The Guidance and Performance Sub-Panel, at its first meeting, began coordinating work at MSC and MSFC. The sub-panel outlined tasks for eac Center: MSFC would define the dispersions comprising the launch vehicle performance reserves, prepare a set of typical translunar injection errors for the Saturn V launch vehicle, and give MSC a typical Saturn V guidance computation for injection into an earth parking orbit. MSC would identify the constraints required for free-return trajectories and provide MSFC with details of the MIT guidance method. Further, the two Centers would exchange data each month showing current launch vehicle and spacecraft performance capability. (For operational vehicles, studies of other than performance capability would be based on control weights and would not reflect the current weight status.)
MSC discussed commonality of displays and controls with its two principal spacecraft contractors. A review of panel components suggested that Grumman might use the same vendors as North American for such items as switches, potentiometers, and indicators.
Because of an electrical equipment failure on Mercury MA-9, North American began a CM humidity study. The company found in the crew compartment major spacecraft systems which were not designed for operation in the presence of corrosive moisture. (The environmental control system did not guarantee complete humidity control.) Investigators also examined in minute detail all electrical electronic components. North American was considering design changes that would protect all components from moisture.
An MSC Spacecraft Technology Division Working Group reexamined Apollo mission requirements and suggested a number of ways to reduce spacecraft weight: eliminate the free-return trajectory; design for slower return times; use the Hohmann descent technique, rather than the equal period orbit method, yet size the tanks for the equal period mode; eliminate the CSM/LEM dual rendezvous capability; reduce the orbital contingency time for the LEM (the period of time during which the LEM could remain in orbit before rendezvousing with the CSM); reduce the LEM lifetime.
NASA and GD/C negotiated amendments totaling $354,737 to Little Joe II contract. This sum covered study activity and several relatively small changes that came out of a Design Engineering Inspection on May 3. More ground support equipment was authorized, as was fabrication of an additional breadboard autopilot system for use at MSC. The dummy payload was deleted and the instrumentation was limited to a control system on the vehicle to be used for Mission A-002 (BP-23).
NASA Headquarters announced the selection of five organizations for contract negotiations totaling $60 million for the development, fabrication, and testing of LEM guidance and navigation equipment: (1) MIT, overall direction; (2) Raytheon, LEM guidance computer; (3) AC Spark Plug, inertial measurement unit, gyroscopes, navigation base, power and servo assembly, coupling display unit, and assembly and testing of the complete guidance and navigation system; (4) Kollsman Instrument Corporation, scanning telescope, sextant, and map and data viewer; and (5) Sperry Gyroscope Company, accelerometers. (All five had responsibility for similar equipment for the CSM as well.)
NASA announced the selection of 14 astronauts for Projects Gemini and Apollo, bringing to 30 the total number of American spacemen. They were Maj. Edwin E. Aldrin, Jr., Capt. William A. Anders, Capt. Charles A. Bassett II, Capt. Michael Collins, Capt. Donn F. Eisele, Capt. Theodore C. Freeman, and Capt. David R. Scott of the Air Force; Lt. Cdr. Richard F. Gordon, Jr., Lt. Alan L. Bean, Lt. Eugene A. Cernan, and Lt. Roger B. Chaffee of the Navy; Capt. Clifton C. Williams, Jr., of the Marine Corps; R. Walter Cunningham, research scientist for the Rand Corporation; and Russell L. Schweickart, research scientist for MIT.
MSC reported that preliminary testing had begun on the first prototype extravehicular suit telemetry and communications system and on the portable life support system of which it was an integral part. The hardware had recently been received from the prime contractor, Hamilton Standard.
The second prototype space suit was received by MSC's Crew Systems Division. Preliminary tests showed little improvement in mobility over the first suit. On October 24-25, a space suit mobility demonstration was held at North American. The results showed that the suit had less shoulder mobility than the earlier version, but more lower limb mobility. Astronaut John W. Young, wearing the pressurized suit and a mockup portable life support system (PLSS), attempted an egress through the CM hatch but encountered considerable difficulty. At the same time, tests of the suit-couch- restraint system interfaces and control display layout were begun at the Navy's Aviation Medical Acceleration Laboratory centrifuge in Johnsville, Pa. Major problems were restriction of downward vision by the helmet, extension of the suit elbow arm beyond the couch, and awkward reach patterns to the lower part of the control panel. On October 30-November 1, lunar task studies with the suit were carried out at Wright-Patterson Air Force Base in a KC-135 aircraft at simulated lunar gravity. Mobility tests were made with the suit pressurized and a PLSS attached.
George E. Mueller, NASA Associate Administrator for Manned Space Flight, appointed Walter C. Williams Deputy Associate Administrator for Manned Space Flight in OMSF. Williams would direct operations at MSC, MSFC, and LOC for all manned space flight missions.
MSC Instrumentation and Electronic Systems Division awarded a $50,000 contract to the Hughes Aircraft Company for a study of backup high gain directable antennas for the LEM lunar surface equipment.
MSC Flight Operations Division defined systems and outlined ground rules for the lunar landing mission. System definitions were: (1) primary, most efficient or economic; (2) alternate, either redundant (identical to but independent of the primary) or backup (not identical but would perform the same function); (3) critical (failure would jeopardize crew safety); (4) repairable (for which tools and spares were carried and which the crew could service in flight); and (5) operational, which must be working to carry out a mission.
Mission rules established crew safety as the major consideration in all mission decisions and detailed actions to be taken in the event of a failure in any system or subsystem.
Because OMSF had requested OSSA to provide lunar surface microrelief and bearing strength data to support LEM landing site selection and to permit LEM landing-gear design validation, the Ad Hoc Working Group on Follow-On Surveyor Instrumentation met at NASA Headquarters. Attending were Chairman Verne C. Fryklund, Clark Goodman, Martin Swetnick, and Paul Brockman of the NASA Office of Space Sciences and Applications; Harry Hess and George Derbyshire of the National Acadamy of Sciences; Dennis James of Bellcomm (for OMSF); and Milton Beilock of the Jet Propulsion Laboratory (JPL). The group proposed "a fresh look at the problem of instrumenting payloads of Surveyor spacecraft that may follow the currently approved developmental and operational flights, so that these spacecraft will be able to determine that a particular lunar site is suitable for an Apollo landing." The study was assigned to JPL.
The NASA-Industry Apollo Executives Group, composed of top managers in OMSF and executives of the major Apollo contractors, met for the first time. The group met with George E. Mueller, NASA Associate Administrator for Manned Space Flight, for status briefings and problem discussions. In this manner, NASA sought to make executives personally aware of major problems in the program.
MSC directed Grumman to schedule manned environmental control system (ECS) development tests, using a welded-shell cabin boilerplate and air lock. At about the same time, the company was also requested to quote cost and delivery schedule for a second boilerplate vessel, complete with prototype ECS. Although this vessel would be used by the MSC Crew Systems Division for in-house investigation and evaluation of ECS development problems, its major purpose was to serve as a tool for trouble-shooting during the operational phase.
After a program review at an MSF Management Council meeting, George E. Mueller, head of OMSF, suggested several testing procedures. To meet schedules, "dead-end" testing, that is, "tests involving components or systems that (would) not fly operationally without major modification," should be minimized. Henceforth, Mueller said, NASA would concentrate on "all-up" testing. (In"all-up" testing, the complete spacecraft and launch vehicle configuration would be used on each flight. Previously, NASA plans had called for a gradual buildup of subsystems, systems stages, and modules in successive flight tests.) To simplify both testing and checkout at Cape Canaveral, complete systems should be delivered. An instrumentation task force with senior representatives from each Center, one outside member, and Walter C. Williams of OMSF should be set up immediately; a second task force, to study storable fuels and small motors, would include members from Lewis Research Center, MSC, MSFC, as well as representatives from outside the government.
NASA canceled four manned earth orbital flights with the Saturn I launch vehicle. Six of a series of 10 unmanned Saturn I development flights were still scheduled. Development of the Saturn IB for manned flight would be accelerated and "all-up" testing would be started. This action followed Bellcomm's recommendation of a number of changes in the Apollo spacecraft flight test program. The program should be transferred from Saturn I to Saturn IB launch vehicles; the Saturn I program should end with flight SA-10. All Saturn IB flights, beginning with SA-201, should carry operational spacecraft, including equipment for extensive testing of the spacecraft systems in earth orbit.
Associate Administrator for Manned Space Flight George E. Mueller had recommended the changeover from the Saturn I to the Saturn IB to NASA Administrator James E. Webb on October 26. Webb's concurrence came two days later.
The first production F-1 engine for the Apollo Saturn V was flown from Rocketdyne's Canoga Park, Calif., facility, where it was manufactured, to MSFC aboard Aero Spacelines' "Pregnant Guppy."
NASA tentatively approved Project Luster, a program designed to capture lunar dust deflected from the moon by meteorites and spun into orbit around the earth. An Aerobee 150 sounding rocket containing scientific equipment built by Electro-Optical Systems, Inc., was scheduled for launch in late 1964.
The Marquardt Corporation received a definitive $9,353,200 contract from North American for development and production of reaction control engines for the SM. Marquardt, working under a letter contract since April 1962, had delivered the first engine to North American that November.
MSC Flight Operations Division outlined the advantages inherent in the CSM's capability to use the HF transceiver during earth orbit. The HF transceiver would allow the CSM to communicate with any one tracking station at any time during earth orbit, even when the spacecraft had line-of-sight (LOS) contact with only one or two ground stations in some orbits. It would give the astronauts an additional communications circuit. Most important, this HF capability could alert the network about any trouble in the spacecraft and give the Flight Director more time to make a decision while the spacecraft was out of LOS communication with the ground stations.
NASA Associate Administrator for Manned Space Flight George E. Mueller notified the Directors of MSC, MSFC, and LOC that he intended to plan a flight schedule which would have a good chance of being met or exceeded. To this end, he directed that "all-up" spacecraft and launch vehicle tests be started as soon as possible; all Saturn IB flights would carry CSM and CSM LEM configurations; and two successful unmanned flights would be flown before a manned mission on either the Saturn IB or Saturn V.
On November 18, Mueller further defined the flight schedule planning. Early Saturn IB flights might not be able to include the LEM, but every effort must be made to phase the LEM into the picture as early as possible. Launch vehicle payload capability must be reached as quickly as practicable. Subsystems for the early flights should be the same as those intended for lunar missions. To conserve funds, the first Saturn V vehicle would be used to obtain reentry data early in the Saturn test program.
North American presented to MSC the results of a three-month study on radiation instrumentation. Three general areas were covered: radio-frequency (RF) warning systems, directional instrumentation, and external environment instrumentation. The company concluded that, with the use of an RE system, astronauts would receive about two hours' notice of any impending solar proton event and could take appropriate action. Proper orientation of the spacecraft could reduce doses by 17 percent, but this could be accomplished only by using a directional detection instrument. There was a 70 percent chance that dosages would exceed safe limits unless such an instrument was used. Consequently North American recommended prompt development.
Despite the contractor's findings, MSC concluded that there was no need for an RE warning system aboard the spacecraft, believing that radiation warning could be handled more effectively by ground systems. But MSC did concur in the recommendation for a combined proton direction and external environment detection system and authorized North American to proceed with its design and development.
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MSC accepted the final items of a $237,000 vibration test system from the LTV Electronics Division to be used in testing spacecraft parts.
On this same day, MSC awarded a $183,152 contract to Wyle Laboratories to construct a high-intensity acoustic facility, also for testing spacecraft parts. The facility would generate noise that might be encountered in space flight.
MSC Director Robert R. Gilruth announced a reorganization of MSC to strengthen the management of the Apollo and Gemini programs. Under Gilruth and Deputy Director James C. Elms, there were now four Assistant Directors, Managers for both the Gemini and Apollo programs, and a Manager for MSC's Florida Operations. Assigned to these positions were:
Maxime A. Faget, Assistant Director for Engineering and Development Christopher C. Kraft, Jr., Assistant Director for Flight Operations Donald K. Slayton, Assistant Director for Flight Crew Operations Wesley L. Hjornevik, Assistant Director for Administration Joseph F. Shea, Manager, Apollo Spacecraft Program Office Charles W. Mathews, Manager, Gemini Program Office and G. Merritt Preston, Manager, MSC Florida Operations.
Apollo Pad Abort Mission I (PA-1), the first off-the-pad abort test of the launch escape system (LES), was conducted at WSMR. PA-1 used CM boilerplate 6 and an LES for this test.
All sequencing was normal. The tower-jettison motor sent the escape tower into a proper ballistic trajectory. The drogue parachute deployed as programmed, followed by the pilot parachute and main parachutes. The test lasted 165.1 seconds. The postflight investigation disclosed only one significant problem: exhaust impingement that resulted in soot deposits on the CM.
MSFC directed Rocketdyne to develop an uprated H-1 engine to be used in the first stage of the Saturn IB. In August, Rocketdyne had proposed that the H-1 be uprated from 85,275 to 90,718 kilograms (188,000 to 200,000 pounds) of thrust. The uprated engine promised a 907-kilogram (2,000 pound) increase in the Saturn IB's orbital payload, yet required no major systems changes and only minor structural modifications.
Grumman issued a go-ahead to RCA to develop the LEM radar. Negotiations on the $23.461 million cost- plus-fixed-fee contract were completed on December 10. Areas yet to be negotiated between the two companies were LEM communications, inflight test, ground support, and parts of the stabilization and control systems.
MSC Crew Systems Division, conducting flammability tests on the constant wear garment material in a 3.5 newtons per square centimeter (5 psi), 100 percent oxygen atmosphere, reported that no fires had been experienced thus far.
At El Centro, Calif., a drop test was conducted to evaluate a dual drogue parachute arrangement for the CM. The two drogues functioned satisfactorily. The cargo parachute used for recovery, however, failed to fully inflate, and the vehicle was damaged at impact. This failure was unrelated to the test objectives.
North American representatives reviewed Farrand Optical Company's subcontract with Link for visual displays in the Apollo Mission Simulator. MSC officials attended the technical portion of the meeting, which was held at Link. Farrand and Link had established window fields of view and optical axis orientations. Designs were to be reviewed to verify accuracy and currency of window locations and crew eye position parameters.
A joint North American-MSC meeting reviewed the tower flap versus canard concept for the earth landing system (ELS). During a low-altitude abort, MSC thought, the ELS could be deployed apex forward with a very high probability of mission success by using the tower flap configuration. The parachute system proposed for this mode would be very reliable, even though this was not the most desirable position for deploying parachutes. Dynamic stability of the tower flap configuration during high- altitude aborts required further wind tunnel testing at Ames Research Center. Two basic unknowns in the canard system were deployment reliability, and the probability of the crew's being able to establish the flight direction and trim the CM within its stability limits for a safe reentry. Design areas to be resolved were a simple deployment scheme and a spacecraft system that would give the crew a direction reference.
MSC directed North American to proceed with the tower flap as its prime effort, and attempt to solve the stability problem at the earliest possible date. MSC's Engineering and Development Directorate resumed its study of both configurations, with an in-depth analysis of the canard system, in case the stability problem on the tower flap could not be solved by the end of the year.
NASA awarded a $19.2 million contract to Blount Brothers Corporation and M. M. Sundt Construction Company for the construction of Pad A, part of the Saturn V Launch Complex 39 at LOC.
The Boeing Company and NASA signed a $27.4 million supplemental agreement to the contract for development, fabrication, and test of the S-IC (first) stage of the Saturn V launch vehicle.
ASPO reviewed Grumman's evaluation of series and parallel propellant feed systems for the LEM ascent stage. Because of the complications involved in minimizing propellant residuals in a parallel system, a series feed appeared preferable, despite an increase in LEM structural weight. Further study of the vehicle showed the feasibility of a two-tank configuration which would be lighter and have about the same propellant residual as the four-tank series-feed arrangement.
After careful study, Grumman proposed to MSC 15 possible means for reducing the weight of the LEM. These involved eliminating a number of hardware items in the spacecraft; two propellant tanks in the vehicle's ascent stage and consequent changes in the feed system; two rather than three fuel cells; and reducing reaction control system propellants and, consequently, velocity budgets for the spacecraft. If all these proposed changes were made, Grumman advised, the LEM could be lightened significantly, perhaps by as much as 454 kilograms (1000 pounds).
ASPO revised the normal and emergency impact limits (20 and 40 g, respectively) to be used as human tolerance criteria for spacecraft design. (These limits superseded those established in the August 14, 1963, North American contract and subsequent correspondence.)
NASA and contractor studies showed that, in the event of an engine hard-over failure during maximum q, a manual abort was impractical for the Saturn I and IB, and must be carried out by automatic devices. Studies were continuing to determine whether, in a similar situation, a manual abort was possible from a Saturn V.
All production drawings for the CM environmental control system were released. - AiResearch Manufacturing Company reported the most critical pacing items were the suit heat exchanger, cyclic accumulator selector valve, and the potable and waste water tanks.
North American conducted an eight-day trial of the prototype Apollo diet. Three test subjects, who continued their normal activities rather than being confined, were given performance and oxygen consumption tests and lean body mass and body compartment water evaluations. The results showed insignificant changes in weight and physiology.
As a result of an MSC Crew Systems Division-Hamilton Standard meeting on the space suit, MSC directed the company to develop a micrometeoroid protective garment to be worn over the suit.
At a meeting of the Apollo Docking Interface Panel, North American recommended and Grumman concurred that the center probe and drogue docking concept be adopted.MSC emphasized that docking systems must not compromise any other subsystem operations nor increase the complexity of emergency operations. In mid-December, MSC/ASPO notified Grumman and North American of its agreement. At the same time, ASPO laid down docking interface ground rules and performance criteria which must be incorporated into the spacecraft specifications.
There would be two ways for the astronauts to get from one spacecraft to the other. The primary mode involved docking and passage through the transfer tunnel. An emergency method entailed crew and payload transfer through free space. The CSM would take an active part in translunar docking, but both spacecraft must be able to take the primary role in the lunar orbit docking maneuver. A single crewman must be able to carry out the docking maneuver and crew transfer.
MSC approved Grumman's $19,383,822 cost-plus-fixed-fee subcontract with Rocketdyne for the LEM descent engine development program.
MSC's Space Environment Division (SED) recommended (subject to reconnaissance verification) 10 lunar landing areas for the Apollo program:
ASPO developed ground rules and guidelines for the Spacecraft Development Test Program being conducted by Grumman, North American, and MIT Instrumentation Laboratory.
At its Santa Susana facility, Rocketdyne conducted the first long-duration (508 seconds) test firing of a J-2 engine. In May 1962 the J-2's required firing time was increased from 250 to 500 seconds.
ASPO Manager Joseph F. Shea asked NASA Headquarters to revise velocity budgets for the Apollo spacecraft. (Studies had indicated that those budgets could be reduced without degrading performance.) He proposed that the 10 percent safety margin applied to the original budget be eliminated in favor of specific allowances for each identifiable uncertainty and contingency; but, to provide for maneuvers which might be desired on later Apollo missions, the LEM's propellant tanks should be oversized.
The ASPO Manager's proposal resulted from experience that had arisen because of unfortunate terminology used to designate the extra fuel. Originally the fuel budget for various phases of the mission had been analyzed and a 10 percent allowance had been made to cover - at that time, unspecified - contingencies, dispersions, and uncertainties. Mistakenly this fuel addition became known as a "10% reserve"! John P. Mayer and his men in the Mission Planning and Analysis Division worried because engineers at North American, Grumman, and NASA had "been freely 'eating' off the so-called 'reserve'" before studies had been completed to define what some of the contingencies might be and to apportion some fuel for that specific situation. Mayer wanted the item labeled a "10% uncertainty."
Shea recommended also that the capacity of the LEM descent tanks be sufficient to achieve an equiperiod orbit, should this become desirable. However, the spacecraft should carry only enough propellant for a Hohmann transfer. This was believed adequate, because the ascent engine was available for abort maneuvers if the descent engine failed and because a low altitude pass over the landing site was no longer considered necessary. By restricting lunar landing sites to the area between ±5 degrees latitude and by limiting the lunar stay time to less than 48 hours, a one-half-degree, rather than two-degree, plane change was sufficient.
In the meantime, Shea reported, his office was investigating how much weight could be saved by these propellant reductions.
MSC reviewed a North American proposal for adding an active thermal control system to the SM to maintain satisfactory temperatures in the propulsion and reaction control engines. The company's scheme involved two water-glycol heat transport loops with appropriate nuclear heaters and radiators. During December, MSC directed North American to begin preliminary design of a system for earth orbit only. Approval for spacecraft intended for lunar missions was deferred pending a comprehensive review of requirements.
In honor of the late President John F. Kennedy, who was assassinated six days earlier, President Lyndon B. Johnson announced that LOC and Station No. 1 of the Atlantic Missile Range would be designated the John F. Kennedy Space Center (KSC), ". . . to honor his memory, and the future of the works he started . . . ," Johnson said. On the following day, he signed an executive order making this change official. With the concurrence of Florida Governor Farris Bryant, he also changed the name of Cape Canaveral to Cape Kennedy.
After a meeting with Grumman officials on November 27, ASPO directed the contractor to begin a Grumman-directed Apollo mission plan development study.
Verne C. Fryklund of NASA's Manned Space Sciences Division advised Bellcomm of the procedure for determining Apollo landing sites on the moon. The Manned Space Sciences chief outlined an elimination for the site selection process. For the first step, extant selenographic material would be used to pick targets of interest for Lunar Orbiter spacecraft photography. After study of the Lunar Orbiter photography, a narrower choice of targets then became the object of Surveyor spacecraft lunar missions, with final choice of potential landing sites to be made after the Surveyor program.
The selection criteria at all stages were determined by lunar surface requirements prepared by OMSF. Fryklund emphasized that a landing at the least hazardous spot, rather than in the area with the most scientific interest, was the chief aim of the site selection process.
MSC directed Grumman to halt work on LEM test article 9, pending determination of its status as a tethered flight vehicle. As a result, the proposed flight demonstration of the tether coupler, using an S-64A Skycrane helicopter, was canceled.
Ames Research Center performed simulated meteoroid impact tests on the Avco Corporation heatshield structure. Four targets of ablator bonded to a stainless steel backup structure were tested. The ablator, in a Fiberglas honeycomb matrix, was 4.369 millimeters (0.172 inch) thick in two targets and 17.424 millimeters (0.686 inch) thick in the other two. Each ablator was tested at 116.48 K (-250 degrees F) and at room temperature, with no apparent difference in damage.
Penetration of the thicker targets was about 13.970 millimeters (0.55 inch). In the thinner targets, the ablator was pierced. Debris tore through the steel honeycomb and produced pinholes on the rear steel sheet. Damage to the ablator was confined to two or three honeycomb cells and there was no cracking or spalling on the surface.
Tests at Ames of thermal performance of the ablation material under high shear stress yielded favorable preliminary results.
Grumman selected AiResearch Manufacturing Company to supply cryogenic storage tanks for the LEM electrical power system. Final negotiations on the cost-plus-incentive-fee contract were held in June 1964.
On this same date, Grumman concluded negotiations with Allison Division of General Motors Corporation for design and fabrication of the LEM descent engine propellant storage tanks (at a cost of $5,479,560).
A design review of the CSM part-task trainer was held at North American. Briefings included general design criteria and requirements, physical configuration, simulation models, and scheduling. The trainer was expected to be operational in December 1964.
Primarily to save weight, the length of the adapter was shortened to 853 centimeters (336 inches), as recommended by Grumman.
ASPO requested that Grumman make a layout for transmittal to MSFC showing space required in the S-IVB instrument unit for 406.4- and 457-centimeter (160- and 180-inch) cantilevered gears and for 508-centimeter (200-inch)-radius lateral fold gears.
As a result of wind tunnel tests, Langley Research Center researchers found the LEM Little Joe II configuration to be aerodynamically unstable. To achieve stability, larger booster fins were needed. However, bigger fins caused more drag, shortening the length of the flight. MSC was investigating the possibility of using more powerful rocket engines to overcome this performance degradation.
The MSC Operations Planning Division (OPD) reviewed the operational demands upon the CM from the time of CM-SM separation until splashdown. OPD concluded that the CM should be designed to operate for 45 minutes during this phase of the mission.
NASA Headquarters approved a $48,064,658 supplement to the Douglas Aircraft Company, Inc., contract for 10 additional S-IVB stages, four for the Saturn IB and six for the Saturn V missions.
The Ad Hoc Working Group on Apollo Experiments submitted its final recommendations on what should be Apollo's principal scientific objectives:
MSC and the U.S. Air Force Aerospace Medical Division completed a joint manned environmental experiment at Brooks Air Force Base, Tex. After spending a week in a sea-level atmospheric environment, the test subjects breathed 100 percent oxygen at 3.5 newtons per square centimeter (5 psi) at a simulated altitude of 8,230 meters (27,000 feet) for 30 days. They then reentered the test capsule for observation in a sea-level environment for the next five days. This experiment demonstrated that men could live in a 100 percent oxygen environment under these conditions with no apparent ill effects.
North American completed a study to determine, for automatic modes of reentry, adequacy of the current CM reaction control system (RCS) and compatibility of the RCS with other reentry subsystems.
ASPO concurred in Grumman's recommendation to delete the redundant gimbal actuation system in the LEM's descent engine. A nonredundant configuration would normally require mission abort in case of actuator failure. Consequently, in making this change, Grumman must ensure that mission abort and the associated staging operation would not compromise crew survival and mission reliability.
Phase I of the Apollo manned centrifuge program was completed at the U.S. Navy Aerospace Medical Acceleration Laboratory, Philadelphia, Pa. The tests pointed up interface problems between couch, suit, and astronaut. For example, pressurizing the suit increased the difficulty of seeing the lower part of the instrument panel. The test fixture was disassembled and the couch, framework, and empty instrument panel were shipped to International Latex Corporation to serve as a mockup for further study.
![]() | Apollo - Launch of Saturn 7 at Launch Complex 37, Merritt Island launch area, Florid Credit: NASA. 9,595 bytes. 217 x 386 pixels. |
To ensure MSC's use of its manpower resources to the fullest extent possible, the Engineering and Development Directorate (EDD) assigned a subsystem manager to each of the major subsystems in the Apollo program. EDD provided such support as was needed for him to carry out his assignment effectively. These subsystem managers were responsible to ASPO for the development of systems within the cost and schedule constraints of the program. Primary duties were management of contractor efforts and testing.
General Dynamics Corporation announced the receipt of a contract (worth about $4 million) from the Philco Corporation for fabrication of the computer display equipment for the Integrated Mission Control Center at MSC.
Grumman proposed a two-tank ascent stage configuration for the LEM. On January 17, 1964, ASPO formally concurred and authorized Grumman to go ahead with the design. The change was expected to reduce spacecraft weight by about 45 kilograms (100 pounds) and would make for a simpler, more reliable ascent propulsion system. ASPO also concurred in the selection of titanium for the two propellant tanks.
MSC directed North American to assign bioinstrumentation channels to the CM for early manned flights for monitoring the crew's pulse rate, blood pressure, respiration, and temperature. These readings could be obtained simultaneously on any one crew member and by switching from man to man for monitoring the entire crew.
The System Engineering Division (SED) examined the feasibility of performing an unmanned earth orbital mission without the guidance and navigation system. SED concluded that the stabilization and control system could be used as an attitude reference for one to two orbits and would have accuracies at retrofire suitable for recovery. The number of orbits depended upon the number of maneuvers performed by the vehicle, since the gyros tended to drift.
Pratt and Whitney Aircraft delivered the first three prototype-A fuel cells to North American.
MSC announced that Grumman and Hamilton Standard had signed an $8,371,465 definitive contract for the LEM environmental control system. A go-ahead had been issued to Hamilton Standard on July 23.
MSC awarded the U.S. Army Corps of Engineers contracts valued at $4,211,377 (to be subcontracted to W. S. Bellows Construction Corporation and Peter Kiewit and Sons, Inc.) for the construction of the MSC Mission and Training Facility and for additions to several existing facilities at the Center.
NASA selected The Boeing Company to build five Lunar Orbiter spacecraft. Beginning in 1966, Lunar Orbiters would take close-range photographs of the moon and transmit them by telemetry back to earth. The spacecraft would also detect radiation and micrometeoroid density and supply tracking data on the gravitational field of the moon. Information derived from the project (managed by Langley Research Center) would aid in the selection of lunar landing sites.
MSC defined the LEM terminal rendezvous maneuvers. That phase of the mission would begin at a range of 9.3 kilometers (five nautical miles) from the CSM and terminate at a range of 152.4 meters (500 feet). Before rendezvous initiation, closing velocity should be reduced to 61 meters (200 feet) per second by use of the ascent engine. The reaction control system should be used exclusively thereafter.
Motorola, Inc., received a follow-on contract from the Jet Propulsion Laboratory for the manufacture and integration of at least three S-band receiving subsystems for NASA's Deep Space Network and Manned Space Flight Network ground stations. Within the unified S-band system adopted by NASA, receiving equipment of the two networks would be identical except for a slight difference in operating frequency. This enabled all communications between ground stations and spacecraft to be on a single frequency. It also allowed more efficient power transfer between the directive antennas and the spacecraft and would greatly reduce galactic noise encountered with UHF frequencies.
Based upon centrifuge test results, MSC directed Hamilton Standard to modify the space suit helmet. The vomitus port and other obstructions to the line of sight in the downward direction were deleted.
NASA announced the appointment of Air Force Brig. Gen. Samuel C. Phillips as Deputy Director of the NASA Headquarters Apollo Program Office. General Phillips assumed management of the manned lunar landing program, working under George E. Mueller, Associate Administrator of Manned Space Flight and Director of the Apollo Program Office.
MSC decided to supply television cameras for the LEM as government-furnished items. Grumman was ordered to cease its effort on this component.
Resizing of the LEM propulsion tanks was completed by Grumman. The cylindrical section of the descent tank was extended 34.04 millimeters (1.34 inches), for a total of 36.27 centimeters (14.28 inches) between the spherical end bells. The ascent tanks (two-tank series) were 1240.54 centimeters (48.84 inches) in diameter.
RCA, contractor to Grumman for the LEM rendezvous and landing radars, chose Ryan Aeronautical Company as vendor for the landing radar. The contract was signed March 16, 1964.
North American, Grumman, and MIT Instrumentation Laboratory summarized results of a six-week study, conducted at ASPO's request, on requirements for a Spacecraft Development Program. Purpose of the study was to define joint contractor recommendations for an overall development test plan within resource constraints set down by NASA. ASPO required that the plan define individual ground test and mission objectives, mission descriptions, hardware requirements (including ground support equipment), test milestones, and individual subsystem test histories.
Intermediate objectives for the Apollo program were outlined: the qualification of a manned CSM capable of earth reentry at parabolic velocities after an extended space mission; qualification of a manned LEM both physically and functionally compatible with the CSM; and demonstration of manned operations in deep space, including lunar orbit. The most significant basic test plan objective formulated during the study was the need for flexibility to capitalize on unusual success or to compensate for unexpected difficulties with minimum impact on the program.
Only one major issue in the test plan remained unresolved - lunar descent radar performance and actual lunar touchdown. Two possible solutions were suggested:
The complete findings of this joint study were contained in a five-volume report issued by North American and submitted to MSC early in February 1964. (This document became known informally as the "Project Christmas Present Report.")
MSC forwarded a $1.4 million contract to Control Data Corporation for two computer systems and peripheral equipment which would be supplied to GE as part of the preflight acceptance checkout equipment.
ASPO directed Grumman to implement a number of recommendations on space suit oxygen umbilical hoses discussed at a joint Grumman/North American meeting and forwarded to ASPO on December 4, 1963:
MSC directed Grumman to integrate LEM translation and descent engine thrust controllers. The integrated controller would be lighter and easier to install; also it would permit simultaneous reaction control system translation and descent engine control. Grumman had predicted that such a capability might be required for touchdown.
The Flight Data Systems Branch of the Engineering and Development Directorate provided ASPO's Lunar Mission Planning Branch with information about the LEM extravehicular suit telemetry and communications system. No line of sight (LOS) communications were possible, and there would be no ground wave propagation and no atmospheric reflection. The link between astronaut and LEM would be limited to LOS of the two antennas, and surface activities by an extravehicular astronaut must be planned accordingly.
Three U. S. Air Force test pilots began a five-week training period at the Martin Company leading to their participation in a simulated seven- day lunar landing mission. This was part of Martin's year-long study of crew performance during simulated Apollo missions (under a $771,000 contract from NASA).
Based on the LEM mockup review of September 16-18, 1963, MSC established criteria for redundancy of controls and displays in the LEM crew station. Within the framework of apportioned reliability requirements for mission success and crew safety, these guidelines applied:
At an MSC-North American meeting, spacecraft communications problems were reviewed. Testing had indicated that considerable redesign was essential to ensure equipment operation in a high-humidity environment. Also antenna designs had created several problem areas, such as the scimitar antenna's causing the CM to roll during reentry. The amount of propellant consumed in counteracting this roll exceeded reentry allowances. Further, because the CM could float upside down, the recovery antenna might be pointed at the ocean floor. In fact, many at this meeting doubted whether the overall communications concept was satisfactory "without having detailed ground receiver characteristics." The situation derived from "one of the primary problems in the area of communications system design . . . the lack of functional requirements specifications."
MSC and Bellcomm agreed upon a plan for testing the Apollo heatshield under reentry conditions. Following Project Fire and Scout tests, the Saturn IB would be used to launch standard "all-up" spacecraft into an elliptical orbit; the SM engine would boost the spacecraft's velocity to 8,839 meters
(29,000 feet) per second.
MSC's Center Medical Office was reevaluating recommendations for LEM bioinstrumentation. The original request was for three high-frequency channels (two electrocardiogram and one respiration) that could be switched to monitor all crew members. Grumman wanted to provide one channel for each astronaut with no switching.
The first fuel cell module delivered by Pratt and Whitney Aircraft to North American was started and put on load. The module operated normally and all test objectives were accomplished. Total operating time was four hours six minutes, with one hour at each of four loads-20, 30, 40, and 50 amperes. The fuel cell was shut down without incident and approximately 1,500 cubic centimeters (1.6 quarts) of water were collected.
Bendix Products Aerospace Division was awarded a 99973 contract by MSC to study crushable aluminum honeycomb, a lightweight, almost non-elastic, shock-absorbing material for LEM landing gears. Bendix would test the honeycomb structures in a simulated lunar environment.
MSC's Systems Engineering Division met with a number of astronauts to get their comments on the feasibility of the manual reorientation maneuver required by the canard abort system concept. The astronauts affirmed that they could accomplish the maneuver and that manual control during high-altitude aborts was an acceptable part of a launch escape system design. They pointed out the need to eliminate any possibility of sooting of the windows during normal and abort flight. Although the current design did not preclude such sooting, a contemplated boost protective cover might satisfy this requirement.
ASPO asked the Flight Crew Operations Directorate to study whatever was necessary to ensure that the LEM crew could reorient their spacecraft manually in an abort 36,600 meters (120,000 feet) above the moon.
ASPO and the Astronaut Office agreed to provide the crew with food that could be eaten in a liquid or semi-liquid form during emergency pressurized operation. This would permit considerable reduction in the diameter of the emergency feeding port in the helmet visor.
Two astronauts took part in tests conducted by North American to evaluate equipment stowage locations in CM mockup 2. Working as a team, the astronauts simulated the removal and storage of docking mechanisms. Preliminary results indicated this equipment could be stowed in the sleeping station. When his suit was deflated, the subject in the left couch could reach, remove, and install the backup controllers if they were stowed in the bulkhead, couch side, or headrest areas. When his suit was pressurized, he had difficulty with the bulkhead and couch side locations. The subject in the center couch, whose suit was pressurized, was unable to be of assistance.
The first full-throttle firing of Space Technology Laboratories' LEM descent engine (being developed as a parallel effort to the Rocketdyne engine) was carried out. The test lasted 214 seconds, with chamber pressures from 66.2 to 6.9 newtons per square centimeter (96 to 10 psi). Engine performance was about five percent below the required level.
Grumman presented to MSC the first monthly progress report on the Lunar Mission Planning Study. The planning group, designated the Apollo Mission Planning Task Force (AMPTF), established ground rules and constraints to serve as a base line around which mission flexibilities and contingency analyses could be built. Main topics of discussion at the meeting were the reference mission, study ground rules, task assignments, and future plans. The following week, MSC Flight Operations Directorate provided a reference trajectory for the AMPTF's use. Major constraints were daylight launch, translunar injection during the second earth parking orbit, free-return trajectory, daylight landing near the lunar equator, 24-hour lunar surface staytime, and a water landing on earth.
Representatives of Grumman, MSC's Instrumentation and Electronics Systems Division, ASPO, and Resident Apollo Spacecraft Program Office (RASPO) at Bethpage met at Grumman to plan the LEM's electrical power system. The current configuration was composed of three fuel cell generators with a maximum power output of 900 watts each, spiking stabilizing batteries, one primary general-purpose AC inverter, and a conventional bus arrangement. To establish general design criteria, the primary lunar mission of the LEM-10 vehicle was analyzed. This "critical" mission appeared to be the "worst case" for the electrical power system and established maximum power and usage rate requirements.
Those attending the meeting foresaw a number of problems:
AiResearch Manufacturing Company reported that it had completed design effort on all components of the CM environmental control system.
Grumman was studying problems of transmitting data if the LEM missed rendezvous with the CSM after lunar launch. This meant that the LEM had to orbit the moon and a data transmission blackout would occur while the LEM was on the far side of the moon. There were two possible solutions, an onboard data recorder or dual transmission to the CSM and the earth. This redundancy had not previously been planned upon, however.
A design review of the CM reaction control system (RCS) was held. Included was a discussion of possible exposure of the crew to hazardous fumes from propellants if the RCS ruptured at earth impact. For the time being, the RCS design would not be changed, but no manned flights would be conducted until the matter had been satisfactorily resolved. A detailed study would be made on whether to eliminate, reduce, or accept this crew safety hazard.
NASA assigned George M. Low to the position of Deputy Director of MSC. He would replace James C. Elms, who had resigned on January 17 to return to private industry. Although Low continued as Deputy Associate Administrator for Manned Space Flight at NASA Headquarters until May 1, he assumed his new duties at MSC the first part of February.
North American gave a presentation at MSC on the block change concept with emphasis on Block II CSM changes. These were defined as modifications necessary for compatibility with the LEM, structural changes to reduce weight or improve CSM center of gravity, and critical systems changes. (Block I spacecraft would carry no rendezvous and docking equipment and would be earth-orbital only. Block II spacecraft would be flight-ready vehicles with the final design configuration for the lunar missions.)
Representatives of MSC, North American, Collins Radio Company, and Motorola, Inc., met in Scottsdale, Ariz., to discuss a proposed redesign of the unified S-band to make it compatible with the Manned Space Flight Network. To ensure that there would be no schedule impact, North American proposed only a limited capability on the Block I vehicles. MSC deferred a decision on the redesign pending equipment compatibility tests at Motorola; spacecraft network compatibility tests by MSC, North American, and the Jet Propulsion Laboratory; and cost analyses.
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MSC issued a $9.2 million contract amendment to North American for the construction and modification of buildings at Downey, Calif., and for research and development work on the CM.
NASA and North American discussed visibility requirements on the CM and came to the following conclusions: the contractor would provide four portholes in the protective shroud so the astronauts could see through both side and forward viewing windows, and ensure that all windows were clean after launch escape tower separation. North American proposed the addition to Block II CM of a collimated optical device for orientation and alignment during docking. MSC Flight Crew Operations Directorate recommended that mirrors be added to increase external and internal field of vision.
The AiResearch Manufacturing Company began qualification testing of the first group of components of the CM environmental control system.
The second phase of docking simulation studies ended at North American- Columbus (Ohio). Tests included 170 runs simulating transposition and lunar orbital docking with stable and unstable targets, and two extendible probe concepts: cable and rigid boom.
A design review of crew systems checkout for the CM waste management system was held at North American. As a result, MSC established specific requirements for leakage flow measurement and for checkout at North American and Cape Kennedy. The current capability of the checkout unit restricted it to measuring only gross leakage of segments of the system.
Further analysis of the management system was necessary to determine changes needed in the checkout unit.
MSC authorized AiResearch Manufacturing Company and the Linde Company to manufacture high- pressure insulated tanks. This hardware, to be available about May 15, would be used in a study of the feasibility of a supercritical helium pressurization system for the LEM.
Studies on the LEM's capability to serve as the active vehicle for lunar orbit docking showed the forward docking tunnel to be the best means of accomplishing this. ASPO requested Grumman to investigate the possibility of this docking approach and the effect it might have on the spacecraft's configuration.
ASPO asked Grumman to study whether attitude control of the docked vehicles was practicable using the LEM's stabilization and control system (RCS). Grumman also was to evaluate the RCS fuel requirements for a five-minute alignment period to permit two star sightings. ASPO further directed the contractor to determine RCS fuel requirements for a second alignment of the LEM's inertial measurement unit during descent coast. This second alignment was needed for the required landing accuracy from a Hohmann descent.
The United States and Spain agreed to the construction and operation of a $1.5 million space tracking and data acquisition station about 48 kilometers (30 miles) west of Madrid, Spain. Linked with the NASA Deep Space Instrumentation Facility, the station included a 26-meter (85-foot)-diameter parabolic antenna and equipment for transmitting, receiving, recording, data handling, and communications with the spacecraft.
First first mission of Block II Saturn with two live stages. SA-5, a vehicle development flight, was launched from Cape Kennedy Complex 37B at 11:25:01.41, e.s.t. This was the first flight of the Saturn I Block II configuration (i.e., lengthened fuel tanks in the S-1 and stabilizing tail fins), as well as the first flight of a live (powered) S-IV upper stage. The S-1, powered by eight H-1 engines, reached a full thrust of over 680,400 kilograms (1.5 million pounds) the first time in flight. The S-IV's 41,000 kilogram (90,000-pound-thrust cluster of six liquid-hydrogen RL-10 engines performed as expected. The Block II SA-5 was also the first flight test of the Saturn I guidance system.
NASA announced the award of a $1.356 million contract to the Blaw-Knox Company for design and construction of three parabolic antennas, each 26 meters (85 feet) in diameter, for the Manned Space Flight Network stations at Goldstone, Calif.; Canberra, Australia; and near Madrid, Spain.
MSC and North American representatives discussed preliminary analysis of the probabilities of mission success if the spacecraft were hit by meteoroids. The contractor believed that pressurized tankage in the SM must be penetrated before a failure was assumed. To MSC, this view appeared overly optimistic. MSC held that, as the failure criterion, no debris should result from meteoroid impact of the SM outer structure. (This change in criteria would cost several hundred pounds in meteoroid protection weight in the SM and LEM.) North American thought that penetration of one half the depth of the heatshield on the conical surface of the CM was a failure. Here, MSC thought the contractor too conservative; full penetration could probably be allowed.
Grumman began initial talks with Bell Aerosystems Company looking toward concentrating on the all-ablative concept for the LEM's ascent engine, thus abandoning the hope of using the lighter, radiatively cooled nozzle extension. These talks culminated in July, when Bell submitted to Grumman a revised development and test plan for the engine, now an all-ablative design.
At an Apollo Program Review held at MSC, Maxime A. Faget reported that Crew Systems Division had learned that the metabolic rate of a man walking in an unpressurized suit was twice that of a man in everyday clothes. When the suit was pressurized to 1.8 newtons per square centimeter (3.5 psi), the rate was about four times as much. To counteract this, a watercooled undergarment developed by the British Ministry of Aviation's Royal Aircraft Establishment was being tested at Hamilton Standard. These "space-age long johns" had a network of small tubes through which water circulated and absorbed body heat. Advantages of the system were improved heat transfer, low circulating noise levels, and relatively moderate flow rates required. An MSC study on integration of the suit with the LEM environmental control system showed a possible weight savings of 9 kilograms (20 pounds).
Fourteen new astronauts, chosen in October 1963, reported at MSC for training for the Gemini and Apollo programs.
MSC and MSFC officials discussed development flight tests for Apollo heatshield qualification. Engineers from the Houston group outlined desired mission profiles and the number of missions needed to qualify the component. MSFC needed this information to judge its launch vehicle development test requirements against those of MSC to qualify the heatshield. By the middle of the month, Richard D. Nelson of the Mission Planning and Analysis Division (MPAD) had summarized the profiles to be flown with the Saturn V that satisfied MSC's needs. Nelson compiled data for three trajectories that could provide reentry speeds of around 11,000 meters (36,000 feet) per second, simulating lunar return. As an example, "Trajectory 1" would use two of the booster's stages to fire into a suborbital ballistic path, and then use a third stage to accelerate to the desired reentry speed.
Flight profiles for Saturn IB missions for heatshield qualification purposes proved to be a little more difficult because "nobody would or could define the requirements or constraints, or test objectives." In other words, MSFC requirements for booster development test objectives and those of MSC for the spacecraft heatshield conflicted. So compromises had to be forged. Finally Ted H. Skopinski and other members of MPAD bundled up all of ASPO's correspondence on the subject generated from the various pertinent sources: MSFC, MSC, and contractors. From this, the Skopinski group drafted "broad term test objectives and constraints" for the first two Saturn IB flights (missions 201 and 202). Generally, these were to man-rate the launch vehicle and the CSM and to "conduct entry tests at superorbital entry velocities" (8,500 to 8,800 meters per second) (28,000 to 29,000 feet per second). Skopinski also enumerated specific test objectives covering the whole spacecraft-launch vehicle development test program. These were first distributed on March 27, and adjustments were made several times later in the year.
Minneapolis-Honeywell Regulator Company reported it had developed an all-attitude display unit for the CM to monitor the guidance and navigation system and provide backup through the stabilization and control system. The Flight Director Attitude Indicator (or "eight-ball") would give enough information for all spacecraft attitude maneuvers during the entire mission to be executed manually, if necessary.
Grumman received MSC's response to the "Project Christmas Present Report", and accordingly reevaluated its testing concept for the LEM. On February 19, the contractor proposed to ASPO Manager Joseph F. Shea a flight program schedule, which was tentatively approved. ASPO's forthcoming proposal was identical to Grumman's proposal. It called for 11 LEMs (which were now renumbered consecutively) and two flight test articles. All LEMs were to have full mission capability, but numbers one through three had to be capable of either manned or unmanned flight.
During a meeting at MSC, North American and MSC Crew Systems Division agreed that there should be a central authority with total cognizance over Gemini and Apollo food and survival equipment, and that all this equipment should be government furnished.
Engineers from ASPO and Engineering and Development Directorate (EDD) discussed the current status of the tower flap versus the canard launch escape vehicle (LEV) configurations. Their aim was to select one of the two LEV configurations for Block I spacecraft. ASPO and EDD concluded that the canard was aerodynamically superior; that arguments against the canard, based on sequencing, mechanical complexity, or schedule effect, were not sufficient to override this aerodynamic advantage; and that this configuration should be adopted for Block I spacecraft. However, further analysis was needed to choose the design for the Block II LEV.
MSC directed Grumman to stop all work on the LEM Little Joe II program. This action followed the ASPO Manager's decision against a testing program for the LEM comparable to that for the CSM.
ASPO directed Grumman to provide an abort guidance system (AGS) in the LEM using an inertial reference system attached to the structure of the vehicle. Should the spacecraft's navigation and guidance system fail, the crew could use the AGS to effect an abort. Such a device eliminated the need for redundancy in the primary guidance system (and proved to be a lighter and simpler arrangement).
NASA gave credit to two MSC engineers, George C. Franklin and Louie G. Richard, for designing a harness system for the LEM that enabled the crew to fly the vehicle from a standing position. Eliminating the seats reduced the LEM's weight and gave the crew better visibility and closer observation of controls and instruments.
Boilerplate (BP) 13 spacecraft was flown from North American, Downey, Calif., to MSC's Florida Operations facility at Cape Kennedy, where the vehicle was inspected and checked out. On April 2, the spacecraft and launch escape system were moved to the pad and mated to the launch vehicle, SA-6. After exhaustive testing, a Flight Readiness Review on May 19 established that BP-13 was ready for launch.
The Block II CSM configuration was based on three classes of changes: mandatory changes necessary to meet the
MSC issued Requests for Proposals to more than 50 firms asking for studies and recommendations on how the lunar surface should be explored. Studies should show how lunar surveys could be performed and how points on the lunar surface might be located for future lunar navigation. Maximum use of equipment planned for the LEM and CM was expected. Part of the scientific apparatus aboard the LEM would be selenodetic equipment. The study would not include actual fabrication of hardware but might give estimates of cost and development times.
MSC ordered North American to design the SM's reaction control system with the capability for emergency retrograde from earth orbit.
North American completed its initial phase of crew transfer tests using a mockup of the CM/LEM transfer tunnel. Subjects wearing pressure suits were suspended and counterbalanced in a special torso harness to simulate weightlessness; hatches and docking mechanisms were supported by counterweight devices. The entire tunnel mockup was mounted on an air-bearing, frictionless table. Preliminary results showed that the crew could remove and install the hatches and docking mechanisms fairly easily.
MSC completed and forwarded to NASA Headquarters a plan for changing the relationship of the navigation and guidance contractors. AC Spark Plug would become the principal contractor, with the Raytheon Company and Kollsman Instrument Corporation as subcontractors. MIT would still have primary responsibility for system design and analysis.
MSC gave its formal consent to two of Grumman's subcontracts for engines for the LEM: (1) With Bell Aerosystems for the ascent engine ($11,205,416 incentive-fee contract) (2) With Space Technology Laboratories for a descent engine to parallel that being developed by Rocketdyne ($18,742,820 fixed-fee contract).
The potable water system was changed to meter both hot and cold water in one-ounce increments to provide accurate measurements for food rehydration. The previous water valve was a full-flow tap.
Motorola, Inc., submitted a proposal to NASA for the Apollo Unified S-band Test Program, a series of tests on the unified S-band transponder and premodulation processor. Motorola had already begun test plans, analytical studies, and fabrication of special test equipment.
General Dynamics Convair delivered to White Sands Missile Range (WSMR) the second Little Joe II launch vehicle, the first Little Joe II scheduled to fly with a production Apollo spacecraft.
MSC announced that, during a 14-day lunar mission, fuel cells in the Apollo CSM would produce about 220 liters (60 gallons) of potable water while furnishing power to operate the electronic equipment.
MSC officials conducted acceptance testing of the 024 prototype space suit at the International Latex Corporation. (Reviewers identified several faults, but they were minor and the suit was accepted.)
Trajectory analyses by North American indicated that, with the tower flap configuration, it was highly probable that crew acceleration limits would be exceeded during high-altitude abort.
ASPO decided upon transfer through free space as the backup mode for the crew's getting from the LEM back to the CM if the two spacecraft could not be pressurized. North American had not designed the CM for extravehicular activity nor for passage through the docking tunnel in a pressurized suit. Thus there was no way for the LEM crew to transfer to the CM unless docking was successfully accomplished. ASPO considered crew transfer in a pressurized suit both through the docking tunnel and through space to be a double redundancy that could not be afforded.
North American conducted three tests (4, 20, and 88 hours) on the CSM fuel cell. The third ended prematurely because of a sudden drop in output. (Specification life on the modules was 100 hours.)
During this same week, Pratt and Whitney Aircraft tested a LEM-type fuel cell for 400 hours without shutdown and reported no leaks.
Grumman completed negotiations with Bell Aerosystems Company for the LEM's reaction control system propellant tanks.
North American submitted to ASPO a proposal for dynamic testing of the docking subsystem, which called for a full-scale air-supported test vehicle. The contractor estimated the program cost at $2.7 million for facilities, vehicle design, construction, and operation.
George E. Mueller, NASA Associate Administrator for Manned Space Flight, summarized recent studies of the dangers of meteoroids and radiation in the Apollo program. Data from the Explorer XVI satellite and ground observations indicated that meteoroids would not be a major hazard. Clouds of protons ejected by solar flares would present a risk to astronauts, but studies of the largest solar flares recorded since 1959 showed that maximum radiation dosages in the CM and the Apollo space suit would have been far below acceptable limits (set in July 1962 by the Space Science Board of the National Academy of Sciences). Cosmic rays would not be a hazard because of their rarity. Radiation in the Van Allen belts was not dangerous because the spacecraft would fly through the belts at high speeds.
RCA presented results of a weight and power tradeoff study on the LEM's radar systems, which were over Grumman's specification in varying amounts from 100 to 300 percent. RCA proposed that the accuracy requirements be relaxed to cope with this problem. MSC requested Grumman, on the basis of this report, to estimate a slippage in the schedule and the effects of additional weight and power.
MSC conducted a Design Engineering Inspection of the LEM timing equipment at the Elgin National Watch Company.
Grumman and RCA signed a contract on the LEM communications subsystem.
At a NASA-North American Technical Management Meeting at Downey, Calif., North American recommended that Apollo earth landings be primarily on water. On the basis of analytical studies and impact tests, the contractor had determined that "land impact problems are so severe that they require abandoning this mode as a primary landing mode." In these landings, North American had advised, it was highly probable that the spacecraft's impact limits would be surpassed. In fact, even in water landings "there may be impact damage which would result in leakage of the capsule." (ASPO Manager Joseph F. Shea, at this meeting, "stated that MSC concurs that land impact problems have not been solved, and that planning to utilize water impact is satisfactory."
Three days later, Shea reported to the MSC Senior Staff that Apollo landings would be primarily on water. The only exceptions, he said, would be pad aborts and emergency landings. With this question of "wet" versus "dry" landing modes settled, Christopher C. Kraft, Jr., Assistant Director for Flight Operations, brought up the unpleasant problem of the CM's having two stable attitudes while afloat - and especially the apex-down one. This upside-down attitude, Kraft emphasized, submerged the vehicle's recovery antennas and posed a very real possibility of flooding in rough seas. Shea countered that these problems could be "put to bed" by using some type of inflatable device to upright the spacecraft.
![]() | Apollo - Nighttime view of Apollo Spacecraft 009 atop Saturn 1B launch vehicle Credit: NASA. 10,522 bytes. 324 x 452 pixels. |
At a NASA-North American technical management meeting, the tower flap versus canard configuration for the launch escape vehicle was settled. ASPO Manager Joseph F. Shea decided that canards should be the approach for Block I vehicles, with continued study on eliminating this device on Block II vehicles.
A joint Grumman, RCA, Ryan Aeronautical Company, ASPO, and Flight Crew Support Division (FCSD) meeting was held at Bethpage to review capability of the LEM landing radar to meet FCSD's requirements for ascent and for orbit circularization. A preliminary (unfunded) Ryan study (requested by ASPO earlier in the month) indicated some doubt that those accuracy requirements could be met. RCA advised that it would be possible to make these measurements with the rendezvous radar, if necessary. A large weight penalty, about 38 to 56 kilograms (84 to 124 pounds), would be incurred if the landing radar were moved from the descent to the ascent stage to become part of the abort guidance system. Adding this weight to the ascent stage would have to be justified either by improved abort performance or added crew safety. MSC authorized RCA and Ryan to study this problem at greater length. In the meantime, ASPO and FCSD would analyze weights, radar accuracies, and abort guidance performance capability.
Representatives from MSC Crew Systems Division (CSD) visited Hamilton Standard to discuss space suit development. The prototype suit (024) was demonstrated and its features compared with the Gemini suit. Deficiencies in the Apollo helmet were noted and suggestions were made on how to improve the design. (At this time, CSD began looking into the possibility of using Gemini suits during Apollo earth orbital flights, and during the next several weeks began testing Gemini suits in Apollo environments.)
The MSC Primary Propulsion Branch (PPB) completed a study on the current LEM ascent engine and performance that might be gained if the chamber pressure and characteristic exhaust velocity efficiency were increased. PPB also evaluated the use of hard versus soft chamber throats. A study by Bell Aerosystems Company had predicted a slightly lower performance than the MSC investigation (which estimated a drop of about six points below specification values if the current design were retained). PPB thought that specifications might be reached by increasing the chamber pressure to 82.7 newtons per square centimeter (120 psia) and the exhaust velocity efficiency to 97.3 percent, and by using a hard, rather than a soft, throat.
MSC Crew Systems Division (CSD) received an improved version of the Apollo space suit (the A-3H-024 Phase B). In the course of the following week, CSD engineers examined the suit for weight, leakage, donning, and mobility.
MSC and AC Spark Plug negotiated amendments to AC's contract for a research and development program for inertial reference integrating gyroscopes. The amendments covered cost overruns, an additional 30 pieces of hardware, and conversion of the contract to an incentive-fee type (target price, $3.465 million; ceiling price, $3.65 million).
Boilerplate (BP) 19 was drop tested at El Centro, Calif., simulating flight conditions and recovery of BP-12. A second BP-19 drop, on April 8, removed all constraints on the BP-12 configuration and earth landing system. Another aim, to obtain information on vehicle dynamics, was not accomplished because of the early firing of a backup drogue parachute.
At North American, a mockup of the crew transfer tunnel was reviewed informally. The mockup was configured to the North American-proposed Block II design (in which the tunnel was larger in diameter and shorter in length than on the existing spacecraft). MSC asked the contractor to place an adapter in the tunnel to represent the physical constraints of the current design, which would permit the present design to be thoroughly investigated and to provide a comparison with the Block II proposal.
MSC received an additional $1.035 million in Fiscal Year 1964 funds to cover development of equipment and operational techniques for scientific exploration of the moon:
Grumman and North American began working out ways for common usage of ground support equipment (GSE). Through informal meetings and telephone discussions, the two prime contractors agreed to a formal procedure for the GSE's use, maintenance, and training procedures.
Grumman completed negotiations with Yardney Electric Corporation for an auxiliary battery for the LEM. A contract would be awarded when size requirements were determined by Grumman and MSC.
NASA completed formal negotiations with Aerojet-General Corporation for 12 Algol 1-D solid rocket motors, to be used in the Little Joe II vehicles. The contract was a fixed-price-plus-incentive-fee type with a target price of about $1.4 million. A maximum price of 20 percent more than the target cost was allowed.
North American was directed by NASA to study feasibility of using the LEM propulsion system as backup to the SM propulsion system. The most important item in the contractor's analysis was strength of the docking structure and its ability to withstand LEM main-engine and reaction control system thrusting.
Grumman completed negotiations with Kearfott Products Division, General Precision, Inc., for the LEM rate gyro assembly, and a contract was awarded later in the month.
Primarily as a weight-saving measure, the gas storage pressure in the LEM's descent stage helium tank was reduced from 3,103 to 2,413 newtons per square centimeter (4,500 to 3,500 psia). This allowed the thickness of the tank wall to be reduced.
Goddard Space Flight Center awarded a $1.963 million contract to the Commonwealth of Australia's Department of Supply to construct and install a data acquisition facility, including an antenna 26 meters (85 feet) in diameter, at Canberra, Australia. The station would become part of the NASA Space Tracking and Data Acquisition Network to track unmanned satellites and part of the Deep Space Network to track lunar and planetary probes. Unified S-band equipment was later installed to support the Manned Space Flight Network during Apollo lunar missions.
First flight test of Little Joe II using a command module (CM) boilerplate (BP-12) at White Sands Missile Range, N. Mex.
ASPO notified Grumman that certain items were no longer to be considered in the weight saving program: guidance and navigation components, drinking water tankage, scientific equipment, pyrotechnic batteries, among others.
North American held a design review of the CM heatshield substructure. Use of titanium in place of stainless steel was being evaluated as part of a weight reduction study for the Block II spacecraft. Added reliability and a weight saving of several hundred pounds might be achieved thereby. Three factors would be considered: the brittleness of stainless steel at extremely cold temperatures, the higher cost of titanium, and the verification of diffusion bonding of titanium honeycomb.
Ryan Aeronautical Company signed a contract with RCA for the LEM lunar landing radar. Ryan was instructed to design for altitudes of 21,300 meters (70,000 feet) and accuracies of 0.5 percent.
AiResearch Manufacturing Company completed testing on development components of the CM environmental control system. Specifications for components had been submitted to North American.
The first prototype of the CM battery for use during reentry was delivered to North American by Eagle-Picher Industries, Inc.
Texas Instruments, Inc., presented a progress report on their lunar surface experiments study to the MSC Lunar Surface Experiments Panel. Thus far, the company had been surveying and rating measurements to be made on the lunar surface. Areas covered included soil mechanics, mapping, geophysics, magnetism, electricity, and radiation. Equipment for gathering information, such as hand tools, sample return containers, dosimeters, particle spectrometers, data recording systems, seismometers, gravity meters, cameras, pentrometers, and mass spectrometers had been considered. The next phase of the study involved integrating and defining the measurements and instruments according to implementation problems, mission needs, lunar environment limitations, and relative importance to a particular mission. Texas Instruments would recommend a sequence for performing the experiments.
NASA instructed North American to fix the CM crew couches along all axes during normal and emergency acceleration, except at impact. During nonacceleration mission phases, the couches would be adjustable for crew comfort.
Grumman reported to MSC the current load status and projected load growth for the LEM's electrical power system, requesting a mission profile of 121 kilowatt-hours total energy. The company also presented its latest recommendation for the LEM power generation subsystem configuration: two 900-watt fuel cells, a descent stage peaking battery, an ascent stage survival battery, and four cryogenic storage tanks. To compensate for voltage drops in the power distribution subsystem, Grumman recommended that two cells be added to the current fuel cell stack; however, on March 23 ASPO directed the contractor to continue development of the 900-watt, three-fuel-cell assembly and a five-tank cryogenic storage system. MSC's position derived from the belief that the load growth would make the two-cell arrangement inadequate. Also the three-cell configuration, through greater redundancy, afforded greater safety and chances of mission success: the mission could continue in spite of a failure in one of the cells; should two cells fail, the mission could be aborted on the final power source. The cryogenic tanks should be sized for a usable total energy of 121 kilowatt-hours to permit immediate tank procurement.
After the decision to use canards instead of tower flaps, North American returned to the concept of a hard boost protective cover. The tower jettison motor would remove the cover along with the tower.
MSC Crew Systems Division (CSD) evaluated a CM couch width of 58.4 centimeters (23 inches). CSD found that the couch hampered an astronaut's movement in an unpressurized suit and totally restricted him if his suit was pressurized.
Tests at North American demonstrated the possibility of using onboard tools to break the CM hatch windows for postlanding ventilation of the spacecraft.
NASA's Office of Space Science and Applications began organizing several groups of scientists to assist the agency in defining more specifically the scientific objectives of Project Apollo. In a number of letters to prominent American scientists, Associate Administrator for Space Science and Applications Homer E. Newell asked them to propose suitable experiments in such fields as geology, geophysics, geochemistry, biology, and atmospheric science. This broadly based set of proposals, Newell explained, is "for the purpose of assuring that the final Apollo science program is well balanced, as complete as possible, and that all potential investigators have been given an opportunity to propose experiments." The proposals would then be reviewed by subcommittees of NASA's Space Sciences Steering Committee.
Members of the Gemini Flights Experiments Review Panel discussed procedures for incorporating Apollo-type experiments into the Gemini program, experiments that directly supported the three-man space program. These experiments encompassed crew observations, photography, and photometry.
OMSF outlined launch vehicle development, spacecraft development, and crew performance demonstration missions, using the Saturn IB and Saturn V:
To verify a narrower hatch configuration proposed for Block II spacecraft, North American evaluated the capability of an astronaut wearing a pressurized space suit and a portable life support system to pass through the main hatch of the CM for extravehicular activities. Subjects were able to enter and leave the mockup without undue difficulty despite the presence of gravity.
The first formal inspection and review of the LEM test mockup TM-1 was held at Grumman. TM-1 allowed early assessment of crew mobility, ingress, and egress. It was a full-size representation of crew stations, support and restraint systems, cabin equipment arrangement, lighting, display panels and instrument locations, and hatches. The TM-1 evaluation became the basis for the final LEM mockup, TM-5, from which actual hardware fabrication would be made.
The Boeing Company received NASA's go-ahead to develop the Lunar Orbiter spacecraft. Two significant changes were made in the original Statement of Work:
The General Electric (GE) Company submitted its cost quotations to NASA, starting the final phase of a program to provide Acceptance Checkout Equipment (ACE - formerly PACE (see February 1963)) ground stations for Apollo spacecraft. The overall "ACE" plan slated three ground stations for North American, two for Grumman, four for Cape Kennedy, and one for MSC. GE's contract called for spacecraft systems integration and checkout and for maintenance of the ACE stations. Much of the ACE equipment was government furnished and had been procured by NASA from several sources: Control Data Corporation - computer; Radiation, Inc. - "decommutators and pulse code modulation simulators." By May, GE had set up and commenced operating an experimental ACE station at Cape Kennedy.
Because of the pure oxygen atmosphere specified for the spacecraft, North American reviewed its requirements for component testing. Recent evaluation of the CM circuit breakers had indicated a high probability that they would cause a fire. The company's reliability office recommended more flammability testing, not only on circuit breakers but on the control and display components as well. The reliability people recommended also that procurement specifications be amended to include such testing.
Impact tests indicated that, because of oscillations and consequent high angles of attack, the CM might not withstand water impact and could sink. North American planned a series of water impact tests using boilerplate 28 to study the problem.
CSM boilerplate 12 (with launch escape system) was mated to its Little Joe II launch vehicle.
MSFC awarded Rocketdyne a definitive contract (valued at $158.4 million) for the production of 76 F-1 engines for the first stage of the Saturn V launch vehicle and for delivery of ground support equipment.
MSC negotiated a cost-plus-incentive-fee contract, valued at $1.65 million, with Hamilton Standard for 27 prototype Apollo space suits and 12 pairs of gloves.
The MSC Operations Planning Division (OPD) reviewed recent revisions by OMSF to Apollo's communications requirements:
Space Technology Laboratories (STL) began using its new San Juan Capistrano, Calif., test facility to static fire the firm's LEM descent engine. Hereafter, the bulk of STL's development firings were made at this site.
Grumman issued a letter contract to AiResearch Manufacturing Company to start design of cryogenic tank assemblies for the LEM fuel cells. AiResearch received the formal contract on June 23.
At the April 7-8 NASA-North American Technical Management Meeting (the first of these meetings to be held at MSC's new home, "NASA Clear Lake Site 1"), ASPO Manager Joseph F. Shea summarized his office's recent activities concerning the Block II spacecraft. He spelled out those areas that ASPO was investigating - which included virtually the whole vehicle between escape tower and service engine bell. Shea outlined procedures for "customer and contractor" to work out the definitive Block II design, aiming at a target date of mid-May 1965. These procedures included NASA's giving North American descriptions of its Block II work, estimates of weight reduction, and a set of ground rules for the Block II design. And to ensure that both sides cooperated as closely as possible in this work, Shea named Owen E. Maynard, Chief of MSC's Systems Engineering Division, and his counterpart at Downey, Norman J. Ryker, Jr., to "honcho" the effort.
Bell Aerosystems Company completed the first of two lunar landing research vehicles, to be delivered to the NASA Flight Research Center for testing.
![]() | Apollo - Apollo/Saturn 201 launched from Kennedy Space Center Credit: NASA. 14,356 bytes. 289 x 469 pixels. |
ASPO gave Grumman specific instructions on insulating wiring in the LEM: Teflon-insulated wiring was mandatory in a pure oxygen atmosphere. If the standard-thickness Teflon insulation was too heavy, a thin- wall Teflon-insulated wiring with abrasion-resistant coating should be considered. Teflon-insulated wiring should also be used outside the pressurized cabin, wherever that wiring was exposed. Any approved spacecraft insulation could be used within subsystem modules which were hermetically sealed in an inert gas atmosphere or potted within the case.
Firings at the Arnold Engineering Development Center (AEDC) and at Aerojet-General Corporation's Sacramento test site completed Phase I development tests of the SM propulsion engine. The last simulated altitude test at AEDC was a sustained burn of 635 seconds, which demonstrated the engine's capability for long-duration firing. Preliminary data indicated that performance was about three percent below specification, but analysis was in progress to see if it could be improved.
FIRE was a subscale model of the Apollo capsule used to verify the spacecraft's hypersonic flight and thermal characteristics. An Atlas D launch vehicle lifted a Project Fire spacecraft from Cape Kennedy in the first test of the heat that would be encountered by a spacecraft reentering the atmosphere at lunar-return velocity. During the spacecraft's fall toward earth, a solid-fuel Antares II rocket behind the payload fired for 30 seconds, increasing the descent speed to 40,501 kilometers (25,166 miles) per hour. Instruments in the spacecraft radioed temperature data to the ground. The spacecraft exterior reached an estimated temperature of 11,400 K (20,000 degrees F). About 32 minutes after launch, the spacecraft impacted into the Atlantic Ocean. The mission, sponsored by Langley Research Center, provided reentry heating measurements needed to evaluate heatshield materials and information on the communications blackout during reentry.
ASPO asked North American to investigate the possibility of designing apex-upright, stable flotation attitude into Block I and Block II CM's.
ASPO gave Grumman a go-ahead on procurement of the flight attitude indicator ("8-ball") and associated equipment for the LEM.
Grumman completed an environmental control system water management configuration study and concluded that a revised design would significantly improve the probability of mission success and crew safety. This design would combine water tanks for the water management functions into one easily accessible package.
MSC Crew Systems Division representatives attended a demonstration at Grumman of Apollo Phase B and Gemini space suits using the LEM TM-1 mockup and a mockup portable life support system. Tests demonstrated ingress egress capability through the forward and top hatches, operation of controls and displays, and methods of getting out on the lunar surface and returning to the spacecraft. Generally, the A7L Space Suit proved sufficiently mobile for all these tasks, though there was no great difference between its performance and that of the Gemini suit during these trials.
Dale D. Myers, North American's Space and Information Systems Division vice president, succeeded John W. Paup as the contractor's program manager for the CM.
NASA's Office of Space Science and Applications (OSSA) and the National Academy of Sciences (NAS) were planning a scientist-astronaut program. The screening-for-selection process could be scheduled for February 1965.
North American conducted a preliminary study on removal of one of three fuel cells from the Block II CSM. The contractor predicted a total weight saving of about 168 kilograms (370 pounds), with potential indirect reductions in the cryogenic systems, but this change would require a significant increase in reliability.
North American completed the first of a series of simulations to evaluate the astronauts' ability to perform attitude change maneuvers under varying rates and angles. Subjects were tested in a shirtsleeve environment and in vented and pressurized International Latex Corporation state-of-the-art pressure suits. The subjects had considerable difficulty making large, multi-axis attitude corrections because the pressurized suit restricted manipulation of the rotational hand controller.
MSC, North American, and Grumman reviewed development problems in the LEM and SM reaction control thrust chambers. They agreed that a reassessment of the chambers' operational and thermal parameters was necessary.
Joseph F. Shea, ASPO Manager, in a letter to North American's Apollo Program Manager, summarized MSC's review of the weight status of the Block I and the design changes projected for Block II CSM's.
The Block II design arose from the need to add docking and crew transfer capability to the CM. Reduction of the CM control weight (from 9,500 to 9,100 kilograms (21,000 to 20,000 pounds)) and deficiencies in several major subsystems added to the scope of the redesign.
Grumman conducted manned drop tests to determine the LEM crew's ability to land the spacecraft from a standing position. All tests were run with the subject in an unpressurized suit in a "hands off" standing position with no restraint system or arm rests.
NASA selected IBM, Federal Systems Division, to develop and build the instrument units (IU) for the Saturn IB and Saturn V launch vehicles. (IBM had been chosen by NASA in October 1963 to design and build the IU data adapters and digital guidance computers and to integrate and check out the IUs.) Under this new contract, expected to be worth over $175 million, IBM would supply the structure and the environmental control system. NASA would furnish the telemetry system and the stabilized platform (ST-124M) of the guidance system. MSFC would manage the contract.
ASPO directed Hamilton Standard to provide urine storage in the Apollo space suit for prelaunch and launch. The contractor was to investigate the suitability of a Mercury-Gemini type urinal for storage and subsequent disposal.
Officials from ASPO, Flight Crew Operations Directorate, Crew Systems Division, and Hamilton Standard established the basic ground rules for Apollo space suit operation:
Rocketdyne conducted the first firing of the prototype thrust chamber assembly for its LEM descent engine.
Grumman redesigned the LEM environmental control system to incorporate a replaceable lithium hydroxide cartridge with a portable life support system cartridge in parallel for emergency backup. The LEM cartridge would be replaced once during a two-day mission.
Also MSC advised Grumman that estimates of the metabolic rates for astronauts on the lunar surface had been increased. The major effect of this change was an increase in the requirements for oxygen and water for the portable life support system.
After completing estimates of the heating conditions for a series of MIT guided reentry trajectories, the MSC Engineering and Development Directorate recommended that the heatshield design philosophy be modified from the current "worst possible entry" to the "worst possible entry using either the primary or backup guidance mode." North American had drawn up the requirements early in 1962, with the intent of providing a heatshield that would not be a constraint on reentry. However, it was now deemed extremely unlikely that an entry, employing either the primary or backup guidance mode, would ever experience the heat loads that the contractor had designed for earlier. The ablator weight savings, using the MIT trajectories, could amount to several hundred pounds.
To train astronauts in various mission procedures, LTV had completed simulations of manual abort and, within a week, would be able to conduct simulated final maneuver phases of a rendezvous.
NASA definitized the letter contract with the Philco Corporation Techrep Division for spacecraft flight control support. The definitive contract covered the period from September 16, 1963, through March 31, 1965, and the total cost-plus-fixed-fee was $720,624.
The NASA Manned Space Science Division was planning a scientific experiments program for manned and unmanned earth orbital flights. The manned program would be a direct outgrowth of the Gemini experiments program.
Representatives from a number of elements within MSC (including systems and structural engineers, advanced systems and rendezvous experts, and two astronauts, Edward H. White II and Elliot M. See, Jr.) discussed the idea of deleting the LEM's front docking capability (an idea spawned by the recent TM-1 mockup review). Rather than nose-to-nose docking, the LEM crew might be able to perform the rendezvous and docking maneuver, docking at the spacecraft's upper (transfer) hatch, by using a window above the LEM commander's head to enable him to see his target.
At Downey, Calif., MSC and North American officials conducted a mockup review on the Block I CSM. Major items reviewed were:
For the first time, three representative Apollo space suits were used in the CM couches. Pressurized suit demonstrations, with three suited astronauts lying side by side in the couches, showed that the prototype suit shoulders and elbows overlapped and prevented effective operation of the CM displays and controls. Previous tests, using only one suited subject, had indicated that suit mobility was adequate. Gemini suits, tested under the same conditions, proved much more usable. Moreover, using Gemini suits for Apollo earth orbital missions promised a substantial financial saving. As a result of further tests conducted in May, the decision was made to use the Gemini suits for these missions. The existing Apollo space suit contract effort was redirected to concentrate on later Apollo flights. A redesign of the Apollo suit shoulders and elbows also was begun.
Apollo Mission Planning Task Force specified the program's mission objectives and ground rules.
Apollo Saturn Mission A-101, using CM BP-13 atop SA-6 Saturn I launch vehicle, launched at Cape Kennedy, Fla., to prove spacecraft/launch vehicle compatibility. Boilerplate CSM, LM adapter, LES. LES jettison demonstrated.
NASA directed North American Aviation, Inc. (NAA), to make certain mandatory changes to both Block I and Block II spacecraft systems.
Ground rules for lunar excursion module guidance and control system firmly defined.
Apollo Mission A-102, using BP-15 for the command and service modules (CSM) and SA-7 for the launch vehicle, confirmed Saturn Block II and CSM compatibility as well as the launch escape vehicle system.
Apollo systems test. Third orbital test. First closed-loop guidance test.
NAA conducted formal inspection and review of Block II CSM mockup.
On the basis of new abort criteria (failure of one fuel cell), extended operating periods, and additional data on fuel cell performance, Grumman recommended a 20.4 kg (45-lb), 1,800 watt-hour auxiliary battery for the LEM. MSC approved the recommendation and Grumman completed the redesign of the electrical power distribution system and resizing of the battery during late October and early November.
North American switched to a spring-activated pop-up antenna for the command module (CM) high-frequency recovery radio.
Ceremonies in Washington marked the sixth anniversary of the National Aeronautics and Space Administration (NASA). Administrator James E. Webb reminded those present of NASA's unique contribution to America's mission and destiny, then read a message from President Johnson: "We must be first in space and in aeronautics," the President said, "to maintain first place on earth. . . . Significant as our success has been, it is but indicative of the far greater advances that mankind can expect from our aeronautical and space efforts in the coming years. We have reached a new threshold . . . which opens to us the widest possibilities for the future." Two days later, in an address in White Sulphur Springs, W. Va., Webb observed that "as the national space program moves into its seventh year, the United States has reached the half-way point in the broad-based accelerated program for the present decade." America was halfway to the moon.
Representatives from Grumman Aircraft Engineering Corporation, North American Aviation, Inc., and Massachusetts Institute of Technology's (MIT) Instrumentation Laboratory, three of the Manned Spacecraft Center's (MSC) principal contractors, met with radar and guidance and navigation experts from Houston and Cape Kennedy. They formulated a detailed plan for testing and checkout of the lunar excursion module (LEM) rendezvous and landing radar systems both at the factory and at the launch site.
MSC's Apollo Spacecraft Program Office (ASPO) approved a plan (put forward by the MSC Advanced Spacecraft Technology Division to verify the CM's radiation shielding. Checkout of the radiation instrumentation would be made during manned earth orbital flights. The spacecraft would then be subjected to a radiation environment during the first two unmanned Saturn V flights. These missions, 501 and 502, with apogees of about 18,520 km (10,000 nm), would verify the shielding. Gamma probe verification, using spacecraft 008, would be performed in Houston during 1966. Only Block I CM's would be used in these ground and flight tests. Radiation shielding would be unaffected by the change to Block II status.
MSC submitted a Request for Proposals to General Electric Company (GE) for two additional spacecraft acceptance checkout ground stations. Eight million dollars was the estimated cost of the added equipment.
ASPO notified Grumman and North American that it had canceled requirements for Apollo part task trainers.
NASA conducted a formal review of the LEM mockup M-5 at the Grumman factory. This inspection was intended to affirm that the M-5 configuration reflected all design requirements and to definitize the LEM configuration. Members of the Mockup Review Board were Chairman Owen E. Maynard, Chief, Systems Engineering Division, ASPO; R. W. Carbee, LEM Subsystem Project Engineer, Grumman; Maxime A. Faget, Assistant Director for Engineering and Development, MSC; Thomas J. Kelly, LEM Project Engineer, Grumman; Christopher C. Kraft, Jr. (represented by Sigurd A. Sjoberg), Assistant Director for Flight Operations, MSC; Owen G. Morris, Chief, Reliability and Quality Assurance Division, ASPO; William F. Rector III, LEM Project Officer, ASPO; and Donald K. Slayton, Assistant Director for Flight Crew Operations, MSC.
The astronauts' review was held on October 5 and 6. It included demonstrations of entering and getting out of the LEM, techniques for climbing and descending the ladder, and crew mobility inside the spacecraft. The general inspection was held on the 7th and the Review Board met on the 8th. Those attending the review used request for change (RFC) forms to propose spacecraft design alterations. Before submission to the Board, these requests were discussed by contractor personnel and NASA coordinators to assess their effect upon system design, interfaces, weight, and reliability.
The inspection categories were crew provisions; controls, displays, and lighting; the stabilization and control system and the guidance and navigation radar; electrical power; propulsion (ascent, descent, reaction control system, and pyrotechnics ; power generation cryogenic storage and fuel cell assemblies ; environmental control; communications and instrumentation; structures and landing gear; scientific equipment; and reliability and quality' control. A total of 148 RFCs were submitted. Most were aimed at enhancing the spacecraft's operational capability; considerable attention also was given to quality and reliability and to ground checkout of various systems. No major redesigns of the configuration were suggested.
As a result of this review, the Board recommended that Grumman take immediate action on those RFC's which it had approved. Further, the LEM contractor and MSC should promptly investigate those items which the Board had assigned for further study. On the basis of the revised M-5 configuration, Grumman could proceed with LEM development and qualification. This updated mockup would be the basis for tooling and fabrication of the initial hardware as well.
Radio Corporation of America's (RCA) Aerospace Systems Division received a 9 million contract from Grumman for the LEM attitude translation control assembly (ATCA). The ATCA, a device to maintain the spacecraft's attitude, would fire the reaction control system motors in response to signals from the primary guidance system.
On the basis of reentry simulations, North American recommended several CM instrument changes. An additional reaction control system display was needed, the company reported. Further, the flight attitude and the stabilization and control system indicators must be modified to warn of a system failure before it became catastrophic. The entry monitor system for Block I spacecraft would have to be replaced and the sample g-meter was not wholly satisfactory.
RCA reduced the weight of the LEM rendezvous radar from 39.9 to 31.98 kg (88 to 70.5 lbs).
North American representatives visited the Grumman plant to discuss design features and to inspect the electroluminescent lighting on the LEM. North American intended to adopt this same feature on Block II CMs.
![]() | Apollo - KSC Launch Complex 34 during Apollo/Saturn Mission 202 pre-launch alert Credit: NASA. 22,925 bytes. 268 x 473 pixels. |
MSC established the configuration of the reaction control system engines for both the service module (SM) and the LEM, and informed North American and Grumman accordingly. The Center also directed North American to propose a design for an electric heater that would provide thermal control in lunar orbit and during contingency operations. The design would be evaluated for use in Block I spacecraft as well.
NASA and Grumman representatives discussed a weight reduction program for the LEM. Changes approved at the M-5 mockup review portended an increase in LEM separation weight of from 68 to 453 kg (150 to 1,000 lbs). Both parties agreed to evaluate the alternatives of either resizing the spacecraft or finding ways to lighten it about nine percent, thus keeping the improved LEM within the present control weight.
NASA approved Grumman's selection of Airite to supply the LEM helium tanks, and the two firms started negotiations.
Grumman lighting experts evaluated self-luminous materials produced by the Minnesota Mining and Manufacturing Company and found them feasible for use in docking lighting.
Grumman completed contract negotiations with Arma Division, American Bosch Arma Corporation, for the LEM caution and warning electronics assembly.
At a North American-Grumman interface meeting on September 23-24, two possible relative role alignments for CSM-active docking were agreed upon. The major item blocking final selection was the effect of the SM's reaction control system engines upon the LEM antennas. ASPO requested Grumman to investigate the problem, to analyze the design penalties of the two-attitude docking mode, and to report any other factors that would influence the final attitude selection.
MSC notified Grumman of several additional LEM guidance and navigation ground rules that were applicable to the coasting phase of the mission. During this portion of the flight, the LEM abort guidance system must be capable of giving attitude information and of measuring velocity changes. Navigational data required to take the LEM out of the coasting phase and to put it on an intercept course with the CSM would be provided by the CSM's rendezvous radar and its guidance and navigation system, and through the Manned Space Flight Network back on earth.
North American and MIT Instrumentation Laboratory representatives met in Houston to discuss electrical power requirements for the guidance and control systems in Block II CMs. They had determined the additional electrical power needed for the guidance and control system 24 volts was available,
In a letter to NASA Administrator James E. Webb, AC Spark Plug reported that the first Apollo guidance system completed acceptance testing and was shipped at 11:30 p.m. and arrived at Downey, California, early the following day. AC reported that in more than 2,000 hours of operation they had found the system to be "remarkably reliable, accurate and simple to operate."
Eagle-Picher Company completed qualification testing on the 25-amperehour reentry batteries for the CM. Shortly thereafter, Eagle-Picher received authorization from North American to proceed with design and development of the larger 40-ampere-hour batteries needed for the later Block I and all Block II spacecraft.
In a letter to Apollo Program Director General Samuel C. Phillips, ASPO Manager Joseph F. Shea pointed out that Bellcomm, under contract to NASA, had a subcontract with Space Technology Laboratories (STL) and that MSC had a contract with STL covering the same basic areas as the Bellcomm-STL subcontract. Shea told Phillips that STL was not allowed to use the information on the MSC contract which had been obtained on the Bellcomm contract, and requested that STL be permitted to use the information on the MSC contract.
Grumman completed the fuel cell assembly thermal study and was preparing a specific directive to Pratt and Whitney Aircraft Company which would incorporate changes recommended by the study. These changes would include the cooling of electrical components with hydrogen and the shifting of other components (water shutoff valves, and oxygen purge valve) so that they would operate at their higher design temperatures.
Because they were unable to find a satisfactory means of plating the magnesium castings for the CM data storage equipment (to fulfil the one percent salt spray requirement), Collins Radio Company and the Leach Corporation were forced to use aluminum as an alternative. This change would increase the weight of the structure by about 2.3 kg (5 lbs) and, perhaps even more significant, could produce flutter when the recorder was subjected to vibration tests. These potential problems would be pursued when a finished aluminum casting was available.
The Air Force Eastern Test Command concurred in the elimination of propellant dispersal systems for the SM and the LEM. Costs, schedules, and spacecraft designs, NASA felt, would all benefit from this action. ASPO thus notified the appropriate module contractors.
Remote operation of the CSM's rendezvous radar transponder and its stabilization and control system (SCS) was not necessary, ASPO told North American. Should the CSM pilot be incapacitated, it was assumed that he could perform several tasks before becoming totally disabled, including turning on the transponder and the SCS. No maneuvers by the CSM would be required during this period. However, the vehicle would have to be stabilized during LEM ascent, rendezvous, and docking.
MSC's Systems Engineering Division reported on the consequences of eliminating the command and service module (CSM) rendezvous radar:
Representatives from the MSC Astronaut Office, and ASPO's Systems Engineering, Crew Systems, and Mission Planning divisions made several significant decisions on crew transfer and space suit procedures:
A number of outstanding points were resolved at a joint MSC-Grumman meeting on LEM communications. Most significant, the VHF key mode was deleted, and it was decided that, during rendezvous, voice links must have priority over all other VHF transmissions. Further, the echo feature of the current configuration (i.e., voice sent to the LEM by the ground operational support system, then relayed back via the S-band link) was undesirable.
The Guidance and Control Implementation Sub-Panel of the MSC-MSFC Flight Mechanics Panel defined the guidance and control interfaces for Block I and II missions. In Block II missions the CSM's guidance system would guide the three stages of the Saturn V vehicle; it would control the S- IVB (third stage) and the CSM while in earth orbit; and it would perform the injection into a lunar trajectory. In all of this, the CSM guidance backed up the Saturn ST-124 platform. Actual sequencing was performed by the Saturn V computer.
North American and Honeywell reviewed the Block II CSM entry monitor subsystem's compatibility with the stabilization and control system. The proposed configuration, they found, combined maximum reliability with minimum size and weight and would provide adequate mission performance.
Three Pratt and Whitney fuel cells were operated in a simulated space vacuum at North American for 19, 20, and 21 hours. This was the first time three cells were operated as an electrical power generating subsystem.
In a letter on August 25, 1964, the LEM Project Office had requested Grumman to define the means by which CSM stabilization and rendezvous radar transponder operation could be provided remotely in the event the CSM crewman was disabled.
In another letter on October 16, the Project Office notified Grumman that no requirement existed for remote operation of either the rendezvous radar transponder or the stabilization and control system. The letter added, however, that the possibility of an incapacitated CSM astronaut must be considered and that for design purposes Grumman should assume that the astronaut would perform certain functions prior to becoming completely disabled. These functions could include turning on the transponder and the SCS. No CSM maneuvers would be required during the period in which the CSM astronaut was disabled but the CSM must remain stabilized during LEM ascent coast and rendezvous and docking phases.
MSC and International Business Machines Corporation (IBM) negotiated a $1,500,000 fixed-price contract for the Apollo guidance and navigation system backup computer.
On October 19, a supplemental agreement in the amount of $115,000,000 was issued to North American, bringing the total funded amount of the CSM contract to $1,136,890,000.
MSC ordered Grumman to halt work on the LEM test article (LTA) 10. The LTA-10's descent stage would be replaced with one cannibalized from LEM test mockup 5.
Heavy black deposits were discovered on the environmental control system (ECS) cold plates when they were removed from boilerplate 14. Several pinholes were found in the cold plate surfaces, and the aluminum lines were severely pitted. This was, as ASPO admitted, a matter of "extreme concern" to the ECS design people at North American, because the equipment had been charged with coolant for only three weeks. This evidence of excessive corrosion reemphasized the drawbacks of using ethylene glycol as a coolant.
MSC's Crew Systems Division investigated environmental control system (ECS) implications of using Gemini suits in Block I missions. The results indicated that the ECS was capable of maintaining nominal cabin temperature and carbon dioxide partial pressure levels; however, this mode of operation always had an adverse effect on cabin dewpoint temperature and water condensation rate.
In response to inquiries from General Samuel C. Phillips, Apollo Program Deputy Director, ASPO Manager Joseph F. Shea declared that, for Apollo, no lunar mapping or survey capability was necessary. Shea reported that the Ranger, Surveyor, and Lunar Orbiter programs should give ample information about the moon's surface. For scientific purposes, he said, a simpler photographic system could be included without requiring any significant design changes in the spacecraft.
ASPO deleted the requirement for LEM checkout during the translunar phase of the mission. Thus the length of time that the CM must be capable of maintaining pressure in the LEM (for normal leakage in the docked configuration) was reduced from 10 hours to three.
Jet Propulsion Laboratory proposed a meeting on October 29 between representatives of NASA Headquarters, Bellcomm, MSC, MIT, and JPL to present the requirements and status of projects underway as they related to the landing aid problem. The Surveyor Block II study effort was concentrating on determining needs of obtaining data on the lunar surface and environment for Apollo.
The trajectory summary of the Design Reference Mission (DRM) prepared by the Apollo Mission Planning Task Force was sent to Grumman by the LEM Project Office with a note that the operational sequence-of-events would be forwarded in November.
It was acknowledged that a single mission could not serve to "completely define all the spacecraft functional requirements" but "such a mission has considerable value as a standard for various purposes on the Apollo Program."
Specifically, the DRM would be used for weight reporting, electrical power reporting, reliability modeling, engineering simulation, crew task analyses, mission-related Interface Control Documents, and trade-off studies.
Because of the redesign of the portable life support system that would be required, MSC directed Grumman and North American to drop the "buddy system" concept for the spacecraft environmental control system (ECS) umbilicals. The two LEM crewmen would transfer from the CM while attached to that module's umbilicals. Hookup with the LEM umbilicals, and ventilation from the LEM ECS, would be achieved before disconnecting the first set of lifelines. MSC requested North American to cooperate with Grumman and Hamilton Standard on the design of the fetal end of the umbilicals. Also, the two spacecraft contractors were directed jointly to determine umbilical lengths and LEM ECS control locations required for such transfer.
ASPO requested Grumman to list all single-point failures that would cause loss of the crew during a lunar orbit rendezvous mission. Grumman was to consider only the equipment that it was responsible for.
NASA announced the appointment of Major General Samuel C. Phillips as Director of the Apollo Program. Phillips thus assumed part of the duties of George E. Mueller, Associate Administrator of Manned Space Flight, who had been serving as Apollo Director as well. Phillips had been Deputy Director since January 15.
MSC ordered North American to halt procurement of a CM simulator. Instead, the company was to begin a simulator program using the two existing evaluator-type CMs in conjunction with the digital-analog computer facility. These evaluators would be used to verify the guidance and navigation and stabilization and control system software, and to analyze crew tasks and failure effects.
Testing of the first flight-weight 15-cell stack of the LEM fuel cell assembly began. Although the voltage was three percent below design, the unit had a 980-watt capability. Earlier, the unit completed 150 hours of operation, and single cell life had reached 662 hours.
At Langley Research Center, representatives from Langley, MSC, Ames Research Center, Avco Corporation, and North American met to discuss their independent conclusions of the data gathered from the Scout test of the Apollo heatshield material and to determine whether a second test was advisable. Langley's report revealed that: the heatshield materials performed as predicted within the flight condition appropriate to Apollo; the excessive recession rates occurred during flight conditions which were more severe than those considered for the design of the heatshield or expected during Apollo reentries.
Each group represented had a different interpretation of the reasons for the excessively high surface recession. The conclusion was that a second flight of the heatshield materials on the Scout would not particularly improve the understanding of the material's performance because of the limited variation in reentry trajectory and flight conditions obtainable with the Scout vehicle.
ASPO's Operations Planning Division defined the current Apollo mission programming as envisioned by MSC. The overall Apollo flight program was described in terms of its major phases: Little Joe II flights (unmanned Little Joe II development and launch escape vehicle development); Saturn IB flights (unmanned Saturn IB and Block I CSM development, Block I CSM earth orbital operations, unmanned LEM development, and manned Block II CSM/LEM earth orbital operations); and Saturn V flights (unmanned Saturn V and Block II CSM development, manned Block II CSM/LEM earth orbital operations, and manned lunar missions).
MSC conducted a week-long salt spray test on the CM television camera's magnesium housing. This was necessitated by similar tests on the Leach data storage structure, which had disclosed the inadequacy of that equipment's nickel plating. The television camera, with its protective coating (AMS 2478, Dow 17 treatment), withstood the ordeal quite well. MSC therefore decided that the magnesium housing was acceptable.
Grumman reported to MSC the results of development tests on the welding of the LEM cabin's thin-gauge aluminum alloy. The stress and corrosion resistance of the metal, Grumman found, was not lessened by environments of pure oxygen, varying temperatures, and high humidity.
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North American conducted the first operational deployment of the launch escape system canards. No problems were encountered with the wiring or the mechanism. Two more operational tests remained to complete the minimum airworthiness test program, a constraint on boilerplate 23.
MSC directed North American to halt development of a portable light assembly for the CM. It was not required, the Center said, because the spaceship's primary lighting system included extendable floodlights. Small lights on the fingertips of the space suit and a flashlight in the survival kit were also available if needed.
After studying the merits of three flush-mounted versus two scimitar VHF antennas for the Block II CSM, the MSC Instrumentation and Electronics Systems Division recommended the flush-mounted type.
North American conferred with representatives from Shell Chemical Company, Narmco, Epoxylite, and Ablestick on the problems of bonding the secondary structure to the CM. They agreed on improved methods of curing and clamping to strengthen the bond and prevent peeling.
The MSC Meteoroid Technology Branch inspected a hard shell meteoroid garment built by the Center's Crew Systems Division. It was only a crude prototype, yet it in no way hampered mobility of the pressurized suit. The Meteoroid Technology people were satisfied that, should a hard garment be necessary for protection of the Apollo extravehicular mobility unit, this concept was adequate. The garment might present stowage problems, however, and investigations were underway to determine the minimum area in the LEM that would be required.
An MSC Crew Systems Division (CSD) medical representative attended a meeting on U.S. Atomic Energy Commission (AEC) participation in those NASA Office of Manned Space Flight (OMSF) and MSC radiobiology pro grams aimed at delineating the effects of high doses of whole-body radiation on man. The meeting was attended by NASA's Dr. W. R. Lovelace, Director, Office of Space Medicine; Dr. Dunham, Medical Director of the AEC; Dr. Grahn, head of the Argonne National Laboratory, Biology Division; Dr. Gould Andrews, Chief, Oak Ridge Institute for Nuclear Studies, Medicine Division; and OMSF and NASA Office of Advanced Research and Technology. CSD requested that the AEC whole-body radiation analysis be extended to include all future cases throughout the country and that the low dose rates being planned for a number of clinical conditions particularly be included. The ultimate objective was a computer, for MSC use, which would accept sequential radiation flux and type information and predict the occurrence of subsequent acute or chronic radiation illness or death. The program was agreed by everyone to be highly desirable. Dr. Dunham said that the AEC would not undertake it unless he had reasonable assurance of long-term support from NASA. A letter giving such assurance was being prepared for Dr. George E. Mueller's signature.
North American conducted the first drop test of boilerplate 28 at Downey, Calif. The test simulated the worst conditions that were anticipated in a three-parachute descent and water landing. The second drop, it was expected, would likewise simulate a landing on two parachutes. The drop appeared normal, but the spacecraft sank less than four minutes after hitting the water.
Astronaut Theodore C. Freeman died in an aircraft accident at Ellington Air Force Base, near Houston. Freeman, an Air Force captain and a member of NASA's third group of spacemen, was preparing to land his T-38 training jet when it struck a goose and lost power. He ejected from his aircraft, but did not have sufficient altitude for his parachute to open. Freeman thus became the first American astronaut to lose his life in the quest for the moon.
MSC spelled out additional details of the LEM environmental control system (ECS) umbilical arrangements. The hoses were to be permanently bonded to the ECS; a crossover valve, to permit flow reversal, was mandatory; and a bypass relief would be added, if necessary, to prevent fan surge. Grumman was to coordinate with North American to ensure that all umbilicals were long enough for crew transfer and to determine the optimum location for the spacecraft's ECS switches.
Bellcomm, Inc., presented its evaluation of the requirement for a q-ball in the emergency detection system. (The device, enclosed in the nose cone atop the launch escape tower, measured dynamic pressures and thus monitored the vehicle's angle of attack, and was designed to warn the crew of an impending breakup of the vehicle.) Bellcomm's findings confirmed that the q-ball was absolutely essential and that the device was ideally suited to its task.
NASA announced the appointment of Brig. Gen. David M. Jones as Deputy Associate Administrator for Manned Space Flight (effective December 15). Most recently, Jones had been Deputy Chief of Staff, Systems, in the Air Force Systems Command. He would be "primarily concerned with major development problems in the Gemini and Apollo Programs, the planning for Advanced Missions and all Mission Operations." Further, Jones would "work with other NASA program offices to insure optimum use of other elements of NASA to accomplish program objectives."
International Telephone and Telegraph Corporation (ITT) Federal Laboratories' Astrionics Center received a $125,000 contract from Collins Radio for the S-band acquisition receivers that position the ground-based dish antennas toward the spacecraft.
Engineers from the MSC Crew Systems Division and from North American discussed testing of the breadboard environmental control system. During all flights - both manned and unmanned - North American must monitor the cabin atmosphere by gas chromatography and mass spectrography. The company should also compare the materials for the breadboard with those for Mercury, Gemini, and other applicable space chambers.
MSC authorized Grumman to proceed with procurement of a battery charger for the LEM, to replenish the portable life support system's power source. On the following day, Houston informed North American such a device was no longer needed in the CSM.
The Apollo Space Suit Assembly received a new designation, the Apollo Extravehicular Mobility Unit. The purpose of the change was to make it more descriptive of its function in the Apollo mission.
Engineers from Grumman and the MSC Instrumentation and Electronics Systems Division (IESD) reviewed the coverage requirements for the LEM's S-band radio and the incompatibility of those requirements with the present location of the steerable antenna. Most observers felt that a deployable boom was the only feasible solution. The two groups therefore recommended that IESD verify with ASPO the S-band coverage requirements and that Grumman analyze the design effects of such a boom. In the meantime, Dalmo-Victor, the antenna vendor, should continue its design effort on the basis of the current location.
During a mechanical loading test (simulating a 20-g reentry) the CM aft heatshield failed at 120 percent of maximum load. Structures and Mechanics Division engineers inspected the structure. They found that the inner skin had buckled, the damage extending three quarters of the way around the bolt circle that secured the heatshield to the spacecraft's inner structure. Their findings would be used along with data from the recent drop of boilerplate 28 to determine what redesign was necessary.
MSC informed North American that a flashing light on the CSM, as an aid for visual rendezvous, was not required. (A request for some such device had been generated at the Block II mockup review.) Houston's position was based on the current CSM/LEM configuration, which called for rendezvous radar on both spacecraft and the ability of both vehicles to effect the rendezvous using either its own radar or that in the target vehicle.
ASPO officials completed a preliminary evaluation of the design and weight implications of an all-battery electrical power system (EPS) for the LEM. Investigators reviewed those factors that resulted in the decision (in March 1963) to employ fuel cells; also, they surveyed recent technological improvements in silver-zinc batteries.
At about the same time, Grumman was analyzing the auxiliary battery requirements of the spacecraft. The contractor found that, under the worst possible conditions (i.e., lunar abort), the LEM would need about 1,700 watt-hours of auxiliary power. Accordingly, Grumman recommended one 1,700 watt-hour or two 850 watt-hour batteries (23 and 29.5 kg (50 and 65 lbs), respectively) in the spacecraft's ascent stage.
NASA anticipated five significant milestones for the LEM during the forthcoming year:
NASA and AC Spark Plug amended the company's contract for guidance and navigation equipment. The change embodied an incentive clause, based on a cost-schedule-performance scheme, and placed the estimated cost of the contract at $235,000,000.
Joseph G. Thibodaux, Jr., MSC Propulsion and Power Division, reported at an Apollo Engineering and Development technical management meeting that the first J-2 firing of the service propulsion system engine was conducted at White Sands Missile Range (WSMR). Two fuel cell endurance tests of greater than 400 hours were completed at Pratt and Whitney. MSC would receive a single cell for testing during the month.
MSC's Structures and Mechanics Division and ASPO reviewed the LTA-10 test program to resolve the stop-work imposed upon Grumman. The review resulted in an agreement to have LTA-10 remain in the program with a modified configuration. LTA-10 would be used by North American at Tulsa, Oklahoma, for adapter/LEM modal and separation testing and would consist only of descent stage structure. Subsystems for LTA-10 which were eliminated were the ascent stage, landing gear, ascent propulsion and descent propulsion.
MSC analyzed Grumman's report on their program to resize the LEM. On the basis of this information, ASPO recommended that the propellant tanks be resized for separation and lunar liftoff weights of 14,742 and 4,908 kg (32,500 and 10,820 lbs), respectively. Studies should investigate the feasibility of an optical rendezvous device and the substitution of batteries for fuel cells. And finally, engineering managers from both Grumman and MSC should examine a selected list of weight reduction changes to determine whether they could immediately be implemented.
Shorting had become a significant problem in the LEM fuel cells, and exemplified the continuing difficulties that plagued the system's development.
In its search for some method of reducing water impact pressures, North American was considering adding a 15- to 30.5-cm (6- to 12-in) "lump" to the CM's blunt face. The spacecraft manufacturer was also investigating such consequent factors as additional wind tunnel testing, the effect on heatshield design, and impact upon the overall Apollo program.
MSC reviewed a number of alternatives to the current design of the space suit helmet. Engineers selected a modified concept, one with the smallest feasible dimensions and began fabricating a thin fiber glass shell. The product would serve as the test article in a series of tests of an immobile, bubble-type helmet. The whole of this effort would support MSC's in-house program to find the best possible helmet design.
More careful examination of the boilerplate 28 aft heatshield indicated that the shear failures were in the face sheet splices which were not in the same locations as the core splices.
There appeared to be some confusion and/or disagreement concerning whether one or two successful Saturn V reentry tests were required to qualify the CM heatshield. A number of documents relating to instrumentation planning for the 501 and 502 flight indicated that two successful reentries would be required. The preliminary mission requirements document indicated that only a single successful reentry trajectory would be necessary. The decision would influence the measurement range capability of some heatshield transducers and the mission planning activity being conducted by the Apollo Trajectory Support Office. The Structures and Mechanics Division had been requested to provide Systems Engineering with its recommendation.
MSC defined the requirements for visual docking aids on both of the Apollo spacecraft:
Robert E. Smylie, of the MSC Crew Systems Division, cited Hamilton Standard's reliability figures for the Apollo space suit assembly, including the suit per se and the portable life support system (PLSS):
Item | Mission Success | Crew Safety |
---|---|---|
Space suit | 0.9995 | 0.99991 |
PLSS (Liquid cooled) | 0.9995 | 0.99999 |
Complete assembly | 0.999 | 0.9999 |
NASA test pilot Joseph A. Walker flew the LLRV for the second time. The first attempted liftoff, into a 9.26-km (5-nm) breeze, was stopped because of excessive drift to the rear. The vehicle was then turned to head downwind and liftoff was accomplished. While airborne the LLRV drifted with the wind and descent to touchdown was accomplished. Touchdown and resulting rollout (at that time the vehicle was on casters) took the LLRV over an iron-door-covered pit. One door blew off but did not strike the vehicle.
Crew Systems Division (CSD) was proceeding with procurement of an inflight metabolic simulator in response to a request by Systems Engineering Division. The simulator would be used to support the LEM mission for SA-206 and would be compatible for use in the CM. Responsibility for the project had been assigned to the Manager of the LEM Environmental Control System Office. It was projected that the Statement of Work would be completed by January 15, 1965; the proposals evaluated by April 1; the contract awarded by June 1, 1965; the prototype delivered by April 1, 1966, with two qualified simulator deliveries by July 1, 1966.
After investigating the maximum radiation levels that were anticipated during Apollo earth orbit missions, North American confirmed the need for some type of nuclear particle detection system (NPDS). Except for periods of extremely high flux rates, the current design of the NPDS was considered adequate. During the same reporting period, North American awarded a contract to Philco to build the system.
The Apollo Mission Planning Task Force met in Bethpage, New York, to define prelaunch handling procedures at the launch complex during lunar missions. At the meeting were representatives of those groups most intimately concerned with pad operations ASPO and the MSC Flight Operations Directorate, Grumman, North American, GE, and the Kennedy launch center. The task force agreed on several fundamental items:
The Emergency Detection System (EDS) Design Sub-Panel of the Apollo-Saturn Electrical Systems Integration Panel held its first meeting at North American's Systems and Information Division facility at Downey, Calif. A. Dennett of MSC and W. G. Shields of MSFC co-chaired the meeting.
Personnel from MSC, MSFC, KSC, OMSF, and North American attended the meeting. Included in the discussions were a review of the EDS design for both the launch vehicle and spacecraft along with related ground support equipment; a review of the differences of design and checkout concepts; and a review of EDS status lights in the spacecraft.
Ling-Temco-Vought received a contract from MSC, valued at $365,000, for unmanned testing of Gemini and Apollo space suits in the firm's space environment simulator.
The MSC Crew Systems Division reviewed the extravehicular mobility unit micrometeoroid protection garment. It was estimated a total weight of 13 to 18 kg (30 to 40 lbs) would be required for the two micrometeoroid protection garments which had a crew safety reliability goal of 0.9999 for the meteoroid hazard. Ground rules for their design were being defined.
MSC's Assistant Director for Flight Crew Operations, Donald K. Slayton, told the Apollo Program Manager that the current display and keyboard (DSKY) for the Block II CSM and for the LEM were not compatible with existing display panel design of both vehicles from the standpoint of lighting, nomenclature presentation, and caution warning philosophy. In his memorandum, Slayton pointed out mandatory operational requirements of the DSKY to ensure compatibility and consistency with the existing spacecraft display panel design.
With reference to lighting, he said all numerics should be green, nomenclature and status lights white, and caution lights should be aviation yellow. All panel lighting should be dimmable throughout the entire range of brightness, including off.
In regard to nomenclature, Slayton pointed out that abbreviations on the DSKY should conform to the North American Interface Control Document (ICD). The referenced ICD was being reviewed by Grumman and North American and was scheduled to be signed December 1, 1964.
Referring to the caution and warning system, he pointed out that all caution lights on the DSKY should be gated into the primary navigation and guidance system (PNGS) caution light on the main instrument panel of both vehicles and into the PNGS caution light on the lower equipment bay panel of the CM.
Slayton requested that preliminary designs of the DSKY panel be submitted to the Subsystem Managers for Controls and Displays for review and approval.
The MSC-Marshall Space Flight Center (MSFC) Guidance and Control Implementation Sub-Panel set forth several procedural rules for translunar injection (TLI):
![]() | Apollo - Liftoff of Saturn Mission 203 Credit: NASA. 12,773 bytes. 243 x 469 pixels. |
MSC determined that the lights on the fingertips of the space suits were adequate to supplement the CM's interior lighting. Thus North American's efforts to develop a portable light in the spacecraft were canceled. The exact requirements for those fingertip lights now had to be defined. The astronauts preferred red bulbs, which would necessitate a redesign of the existing Gemini system. (See October 29-November 5.)
MSC conducted studies to determine problems in donning and doffing the Apollo external thermal garment (ETG) and portable life support system (PLSS) by a subject in a full-pressure suit. The subject donned and doffed the ETG and PLSS unassisted with the suit in a vented condition and with assistance while the suit was pressurized to 25.5 kilonewtons per sq m (3.7 psig). Tests showed the necessity of redesigning the ETG in the neck and chest area to prevent a gathering of excess material which restricted downward visibility.
To ensure that the redesigned landing gear on the resized LEM would be consistent with earlier criteria, MSC sent to Grumman revisions to those design criteria:
In flights that simulated the moon's gravity, MSC technicians evaluated the astronaut's ability to remove scientific packages from the descent stage of the LEM. They affirmed the relative ease with which large containers (about 0.226 cu m (8 cu ft) and weighing 81.65 kg (180 lbs)) could be extracted and carried about.
The current thrust buildup time for the LEM ascent engine was 0.3 second. To avoid redesigning the engine valve-which was already the pacing item in the ascent engine's development - MSC directed Grumman simply to change the specification value from 0.2 to 0.3 second.
At the same time, engineers at the Center began studying ways to increase the engine's thrust. Because of the LEM's weight gains, the engine must either be uprated or it would have to burn longer. Preliminary studies showed that, by using a phase "B" chamber (designed for a chamber pressure of 689.5 kilonewtons per sq m (100 psia)), thus producing chamber pressure of about 792.9 kilonewtons (115 psia), the thrust could be increased from 1,587 to 1,814 kg (3,500 to 4,000 lbs). Moreover, this could be accomplished with the present pressurization and propellant feed systems.
Officials from North American and MSC Crew Systems Division defined the container design and stowage of survival kits in the Block II CM. The equipment would be packed in fabric rucksacks and would be installed in the spacecraft's stowage compartment. (This method eliminated a removable hard container used in the Block I vehicle and would save weight.)
MSC asked Grumman to design and fabricate a prototype for a lunar sample return container. This effort would explore handling procedures and compatibility with both spacecraft. Concurrently, the Center's Advanced Spacecraft Technology Division was studying structural and packaging requirements for such a container.
MSC was giving serious thought to using radioisotope generators to power the Apollo lunar surface experiments packages. If some method could be found to control waste heat, such a device would be the lightest source of power available. Accordingly, the Center asked Grumman to study the feasibility of incorporating it into the LEM's scientific payload. The company should analyze thermal and radiological problems, as well as methods of stowage, together with the possibility of using the generator for power and heat during the flight. To minimize the problem of integration, Grumman was allowed much flexibility in designing the unit. Basically, however, it would measure about 0.07 cu m (2.5 cu ft) and would weigh between 13 and 18 kg (30 and 40 lbs). Its energy source (plutonium 238) would produce about 50 watts of electricity (29 volts, direct current).
MSC and Grumman representatives reviewed individual subsystem test logics for the LEM and agreed on test logic and associated hardware requirements for the entire subsystem development. Agreement was also reached on the vehicle ground test program which Grumman proposed to implement with their respective subcontractors during December. Cost and effort associated with the revised program would be jointly reviewed by MSC and Grumman during January and February 1965.
To solve the persisting problem of the integrity of the CM's aft heatshield during water impacts, MSC engineers were investigating several approaches: increasing the thickness of the face sheet (but with no change to the core itself); and replacing the stainless-steel honeycomb with a type of gridwork shell. Technicians felt that, of these two possibilities, the first seemed more efficient structurally.
North American received NASA's formal go-ahead on manufacture of the Block II spacecraft.
The CSM Configuration Control Panel, at its first meeting, approved several engineering changes. Perhaps the most significant was the substitution of an elapsed time display for the clock on the main display console.
MSC and Grumman reviewed the ground test program for the LEM guidance and navigation subsystem (including radar). All major milestones for hardware qualification would be met by the revised test logic, and both LEM and CSM radar were expected to be delivered on time. The major problem area was permissible deviations from fully qualified parts for pre-production equipment. Since this was apparently true for all LEM electronics equipment, it was recommended that an overall plan be approved by ASPO.
A "pre-FRR" laid some preliminaries for the formal Flight Readiness Review (ERR) of boilerplate 23 (held at WSMR on December 4, 1964). Because the boost protective cover had not been designed to sustain the dynamic pressures that would follow deployment of the canards and vehicle "turn-around," North American was asked to analyze the possibility of its failing.
Several other problems were aired - fluttering of the canards and the likelihood of damage to the parachute compartment during jettisoning of the launch escape tower and the boost cover. Joseph N. Kotanchik, chief of the Structures and Mechanics Division, confidently reported to ASPO that "these items will also be resolved prior to the ERR."
Grumman and MSC representatives met at Bethpage, New York, to establish requirements for a new hardware delivery schedule for the LEM ground development test program. This program would involve changes in the workload at the subcontractors, WSMR, AEDC, and Grumman. New delivery schedules for flight engines were also finalized at the meeting.
ASPO Manager Joseph F. Shea informed Apollo Program Director Samuel C. Phillips that it was his desire to review the progress of the two subcontractors (Space Technology Laboratory and Rocketdyne) prior to the final evaluation and selection of a subcontractor for the LEM descent engine.
Shea had asked MSC's Maxime A. Faget to be chairman of a committee to accomplish the review, and would also ask the following individuals to serve: C. H. Lambert, W. F. Rector III, and J. G. Thibodaux, all of MSC; L. F. Belew, MSFC; M. Dandridge and J. A. Gavin, Grumman; I. A. Johnsen, Lewis Research Center; C. H. King, OMSF; Maj. W. R. Moe, Edwards Rocket Research Laboratory; and A. O. Tischler, NASA Office of Advanced Research and Technology.
The Committee should
The Configuration Control Panel approved a deployment angle of 45 degrees for the adapter panels on Block I flights. North American anticipated no schedule impact. MSC and North American were jointly evaluating the acceptability of this angle for Block II missions as well. A most important consideration was the necessity to communicate via the CM's high-gain antenna during the transposition and docking phase of the flight.
Because of heat from the service propulsion engine (especially during insertion into lunar orbit), a serious thermal problem existed for equipment in the rear of the SM. Reviewing the rendezvous radar's installation, the Guidance and Control Division felt that a heatshield might be needed to protect the equipment. Similar problems might also be encountered with the steerable antenna.
MSC informed North American that the Center would furnish a VHF transmitter to serve as a telemetry dump for all manned Block I flights. This would permit wide flexibility in testing the CSM S-band's compatibility with the Manned Space Flight Network prior to Block II missions.
Crew Systems Division (CSD) engineers evaluated the radiator for the environmental control system in Block I CSM's. The division was certain that, because of that item's inadequacy, Block I missions would have to be shortened.
During the same period, however, the Systems Engineering Division (SED) reported "progress" in solving the radiator problem. SED stated that some "disagreement" existed on the radiator's capability. North American predicted a five-day capability; CSD placed the mission's limit at about two days. SED ordered further testing on the equipment to reconcile this difference.
Crew Systems Division gave space suit manufacturers the responsibility of providing personal communications equipment in their products.
Bell Aerosystems Company tested a high-performance injector for the LEM ascent engine. The new design was similar to the current one, except that the mixture ratio of the barrier flow along the chamber wall had been changed from 0.85 to 1.05. Bell reported a performance increase of 0.8 percent (about 2.5 sec of specific impulse). Subsequent testing, however, produced excessive erosion in the ablative wall of the thrust chamber caused by the higher temperature. The MSC Propulsion and Power Division (PPD) felt this method of increasing the ascent engine's performance might not be practicable.
At the same time, PPD reported that Bell had canceled its effort to find a lighter ablative material (part of the weight reduction program). A number of tests had been conducted on such materials; none was successful.
MSC's Flight Operations Directorate accepted KSC's proposal for emergency nitrogen deluge into the SM and spacecraft LEM adapter (SLA) in case of a hydrogen leak on the pad. The proposal was based upon no changes to the spacecraft and insertion to the SM SLA area in about three minutes. However, errors in volume estimation and inlet conditions in the spacecraft required reevaluation of the proposal to assure that insertion could be accomplished in a reasonable length of time without changes in the spacecraft.
Grumman selected the Leach Corporation to supply data storage electronics assemblies for the LEM. Conclusion of contract negotiations was anticipated about February 1, 1965. The resident Apollo office at Grumman gave its approval to the selection, with only two conditions:
General Precision's Link Group received a $7 million contract from NASA, through a subcontract with Grumman, for two LEM simulators, one at Houston and the other at Cape Kennedy. Along with comparable equipment for the CSM (also being developed by Link), the machines would serve as trainers for Apollo astronauts. The devices would duplicate the interior of the spacecraft; and visual displays would realistically simulate every phase of the mission.
Six flights of the Lunar Landing Research Vehicle (LLRV) were made during the month, bringing the total number to seven. The project pilot, Joseph Walker, made all flights and demonstrated a rapid increase in the ease and skill with which he handled the craft as the flights progressed.
Altitudes to between 18 and 21 m (60 and 70 ft) and flight duration up to three minutes were attained.
Acceptance testing was completed at Downey, California, on three principal systems trainers for the CSM (the environmental control, stabilization and control, and electrical power systems). The trainers were then shipped to Houston and installed at the site, arriving there December 8. They were constructed under the basic Apollo Spacecraft contract at a cost of $953,024.
North American tested the canard thrusters for the launch escape system, using both single and dual cartridges. These tests were to determine whether the pressure of residual gases was sufficient to maintain the canards in a fully deployed position. Investigators found that residual pressures remained fairly constant; further, the firing of a single cartridge produced ample pressure to keep the canards deployed.
MSC froze the design of the drogue mortar for the launch escape system. Laboratory qualification was scheduled to begin about the middle of the month. Qualification of the mortars for the pilot parachute would then follow.
After studying increased thrust versus increased burn time, Grumman ordered Bell Aerosystems Company to redesign the LEM's ascent engine for a longer firing duration.
MSC approved plans put forth by North American for mockups of the Block II CSM. For the crew compartment mockup, the company proposed using the metal shell that had originally been planned as a simulator. Except for the transfer tunnel and lighting, it would be complete, including mockups of all crew equipment.
Engineering and medical experts of the Crew Systems Division reviewed dumping helium from the CM's gas chromatograph into the cabin during reentry or in a pad abort. Reviewers decided that the resultant atmosphere (9.995 kilonewtons (1.45 psi) helium and 31.349 kilonewtons (4.55 psia) oxygen) posed no hazard for the crew. Systems Engineering Division recommended, however, that dump time be reduced from 15 minutes to three, which could readily be done.
At its Sacramento test site, Douglas Aircraft Company static-fired a "battleship" S-IVB second stage of the Saturn IB vehicle, for 10 sec. (A battleship rocket stage was roughly the vehicle's equivalent to a boilerplate spacecraft.) On January 4, 1965, after further testing of the stage's J-2 engine, the stage underwent its first full-duration firing, 480 sec.
MSC ordered North American to fix the rotation angle of the adapter panels at 45 degrees. (This angle should give ample clearance during an SM abort.) Also, so that each panel would have two attenuators, North American should include such a device at each thruster location.
On the same day, the Center directed North American to put a standard mechanical clock (displaying Greenwich Mean Time) in the lower equipment bay of the CM. (The spacecraft also had an elapsed time device on the main display console.)
Douglas Aircraft Company delivered the first S-IVB stage to Marshall Space Flight Center for extensive vibration, bending, and torsional testing. The stage was not an actual flight stage and contained mockups of the engine and other components, but it duplicated the flight article in weight, mass, center of gravity, and stiffness.
MSC advised Grumman that, normally, the LEM would be the active vehicle during lunar rendezvous. This would conserve reaction control system propellants aboard the CSM.
The Space Science Board of the National Academy of Sciences was asked to give NASA an independent evaluation of the need for a lunar sampling handling facility at Houston. NASA asked that the following questions be answered:
Representatives of MSC's Information and Electronic Systems Division, Flight Operations Division, Flight Crew Operations Division, Guidance and Control Division, Astronaut Office, and ASPO, Goddard Space Flight Center, and Bellcomm, Inc., met to discuss communications during LEM and CSM rendezvous.
Capability of the Manned Space Flight Network (MSFN) to provide data for rendezvous was studied. Aaron Cohen of ASPO stated sufficient data could be collected, processed, and transmitted via MSFN to the LEM to achieve rendezvous. Dr. F. O. Vonbun of Goddard showed that MSFN data did little to improve data already available in the LEM before launch. Although five tracking stations would communicate with the LEM during ascent and the first 10 minutes of orbit, there would be only a slight improvement in spacecraft position and motion data over the data already contained in the LEM computer. No decision was made concerning the MSFN's capability.
Alternate rendezvous methods were discussed.
Boilerplate 23, Mission A-002, was successfully launched from WSMR by a Little Joe II launch vehicle. The test was to demonstrate satisfactory launch escape vehicle performance utilizing the canard subsystem and boost protective cover, and to verify the abort capability in the maximum dynamic pressure region with conditions approximating emergency detection subsystem limits.
A single main parachute was drop-tested at El Centro, Calif., to verify the ultimate strength. The parachute was designed for a disreef load of 11,703 kg (25,800 lbs) and a 1.35 safety factor. The test conditions were to achieve a disreef load of 15,876 kg (35,000 lbs. Preliminary information indicated the parachute deployed normally to the reefed shape (78,017 kg (17,200 lbs) force), disreefed after the programmed three seconds, and achieved an inflated load of 16,193 kg (35,700 lbs), after which the canopy failed.
MSC revised the weight allocation for the LEM's R&D instrumentation to bring it in line with current mission planning. Limitations established were 295 kg (650 lbs) for 206A and 181 kg (400 lbs) for all other missions.
Grumman and LEM Project Office representatives met to discuss the split bus distribution system. They decided there would be two circuit breaker panels similar to those of Mockup 5. All power distribution system controls would be located on the system engineer's center side console with remote controls and valves on the commander's center side console.
![]() | Apollo - Artist's concept of prototype of Apollo Space suit Credit: NASA. 19,402 bytes. 224 x 459 pixels. |
Grumman received from Houston criteria for firing times of the SM reaction control system (RCS). These served as a basis for the design of the LEM's steerable antenna. The thermal design proposed by Dalmo-Victor, the vendor, appeared feasible to watchdogs in MSC's Instrumentation and Electronic Systems Division. On the other hand, the unbalanced wind torque produced by the RCS engines was still a problem. RCA and Dalmo-Victor's estimates of the amount of torque varied considerably, and Grumman consequently undertook a study of this problem.
MSC approved the use of one 23.68-kg (50-lb) auxiliary battery for the LEM, as recommended by Grumman, and preparations began for negotiations with Yardney Electric Corp.
Avco Corporation was under a 10-month contract amounting to $124,578 to MSC to study the effects of solar radiation and ultra-high vacuum on the materials and components of space suits. Testing would be performed in the Avco space environment chamber.
By improving filling and preparation procedures and by using nickel foil in the oxygen electrode, Pratt and Whitney eliminated both short- and long-term plugging in the LEM's fuel cell assembly. Since then, Pratt and Whitney had consistently operated single cells for over 400 hours and - as far as the company was concerned - felt this settled the matter.
Crew Systems Division received from North American a mockup of the proposed design of the food stowage compartment in the Block II CSM. This article would be used for packaging studies in preparation for the lower equipment bay mockup review in February.
Because of faults in both design and in testing procedures, the positive expulsion tanks for the CSM reaction control system failed their verification tests (begun during the preceding month).
The resident Apollo office at North American discussed the company's tooling concepts for the Block II spacecraft with the chief of Marshall's Planning and Tool Engineering Division and the local Marshall representative. These reviewers agreed on the suitability of North American's basic approach. Though they recognized that the initial tooling cost would be high, they nonetheless felt that the total costs of manufacturing would not be appreciably affected. The substitution of mechanical for optical checking devices, it was agreed, would eliminate much of the "judgment factor" from the inspection process; mechanical checking also would assure uniformity of major components or subsystems.
MSC directed Grummann to provide a LEM abort guidance section (AGS) having
From MSC, Grumman received updated criteria to be used in the design of the LEM's landing gear. The gear must be designed to absorb completely the landing impact; it must also provide adequate stability for the vehicle under varying surface conditions, which were spelled out in precise detail.) Maximum conditions that MSC anticipated at touchdown were:
vertical velocity - 3.05 m (10 ft) per sec
horizontal velocity - 1.22 m (4 ft) per sec
spacecraft attitude
pitch - 3 degrees
roll - 3 degrees
yaw - random
attitude rates - 3 degrees per sec
At touchdown, all engines (descent and reaction control would be off. "It must be recognized," MSC emphasized, "that the vertical and horizontal velocity values . . . are also constraints on the flight control system."
ASPO's Operations Planning Division directed Grumman to provide six recharges of the portable life support system (PLSS) and three PLSS batteries (rechargeable and replaceable).
Dalmo-Victor studied thermal-demanded weight increases for the LEM's steerable antenna. Investigators reported to Grumman and RCA that, in the plume of the CSM's reaction control engines, 1.18 kg (2.5 lbs) was necessary merely for the survival of the antenna; another 1.18 kg would be required for tracking during this impingement.
Associate Administrator for Manned Space Flight George E. Mueller informed MSC Director Robert R. Gilruth that the Integrated Mission Control Center at MSC should be renamed Mission Control Center. He said, "By calling it the Mission Control Center, it has the advantage of retaining as much as possible of the original name which has become so well known to the press, the Congress and the public."
Phase II service propulsion system engine tests at Arnold Engineering Development Center were begun under simulated high altitude conditions with a successful first firing of 30 seconds. A total of nine firings were completed.
A mission planning presentation was given to ASPO Manager Joseph F. Shea, Assistant Director for Flight Operations Christopher C. Kraft, Jr., and Assistant Director for Flight Crew Operations Donald K. Slayton covering missions AS-201, AS-202, and AS-203. Shea said he wanted either a natural decaying orbit of proper lifetime or reaction control system deorbit capability for the first manned missions. It was decided not to put a C-band beacon on the SM for the post CM/SM separation tracking. This decision came back to haunt the program much later.
Aboard a KC-135 from Wright-Patterson AFB, the fecal canister and urine relief tube were first tested under zero-g conditions. Similar manned tests of a complete unit were scheduled for February 1965.
Ames researchers conducted 23 runs in the Center's wind tunnel to confirm the flight test instrumentation's compatibility with the aft heatshield of the CM. The instrumentation performed satisfactorily.
NASA announced the selection of two firms to supply electronics equipment for the Manned Space Flight Network:
North American delivered spacecraft 001's CM to White Sands. The SM was shipped several days later, and would be used for propulsion engine development. Aerojet-General shipped the service propulsion engine to the facility on January 6, 1965.
NASA Administrator James E. Webb thanked Secretary of Defense Robert S. McNamara for providing aircraft support for the Apollo program. Webb informed McNamara that NASA had transferred $600,000 to the Electronic Systems Division of the Air Force, and "this should provide us the ability to initiate the definition phase of the C-135 Apollo support aircraft program." The aircraft would be used to supplement telemetry and communications coverage of the pre-injection phase of the flights.
Webb added that the Bureau of the Budget had the question of identifying four additional C-135's well on its way toward resolution; and that NASA would continue planning on the basis of 12 C-135 aircraft for the Apollo program.
McNamara had written Webb on November 27, 1964, that "The Air Force has completed a study of a number of alternative combinations of aircraft to meet Apollo requirements. They conclude that the optimum solution is to equip twelve C-135's to support Apollo . . ." Total cost of instrumenting 12 C-135's was estimated to cost $27.7 million, including the $600,000 for the definition phase.
Crew Systems Division (CSD) engineers, in their continuing effort to improve the design of the space suit, recommended a number of modifications to the thermal garment for example, a larger sleeve opening to facilitate inserting the second arm; and alterations to the neck and chest to increase the astronaut's downward view. By the middle of January, CSD's Robert E. Smylie could report several major design changes improved greatly the suit's don doff characteristics and made it less bulky.
The Structures and Mechanics Division (SMD) summarized the thermal status of antennas for the Apollo spacecraft (both CSM and LEM). Generally, most troubles stemmed from plume impingement by the reaction control or radiation from the service propulsion engines. These problems, SMD reported, were being solved by increasing the weight of an antenna either its structural weight or its insulation; by shielding it from the engines' exhaust; by isolating its more critical components; or by a combination of these methods.
In response to MSC's new criteria for the landing gear of the LEM, Grumman representatives met with Center officials in Houston to revise the design. Grumman had formulated a concept for a 419-cm (165-in) radius, cantilever-type configuration, In analyzing its performance, Grumman and Structures and Mechanics Division (SMD) engineers, working separately, had reached the same conclusion: namely, that it did not provide sufficient stability nor did it absorb enough of the landing impact. Both parties to this meeting agreed that the gear's performance could be improved by redesigning the foot pads and beefing up the gear struts. Grumman was modifying other parts of the spacecraft's undercarriage accordingly.
At the same time, Grumman advised MSC that it considered impractical a contrivance to simulate lunar gravity in the drop program for test Mockup 5. Grumman put forth another idea: use a full-sized LEM, the company said, but one weighing only one-sixth as much as a flight-ready vehicle. SMD officials were evaluating this latest idea, while they were reviewing the entire TM-5 program.
NASA Technical Services constructed the molds that would be used to make the one-piece bubble helmets for the Apollo space suits. These forms would be delivered to General Electric and to Texstar, the two firms that would actually fabricate the helmets, with the first shell expected about mid-January.
At the same time, Crew Systems Division completed drop tests on the new helmet concept. The division's engineers also began designing and fabrication of support items (neck rings, feed ports, and skull caps), as well as exploring methods of maintaining the helmet's hygiene and habitability.
To strengthen the Agency's managerial organization, NASA announced a realignment within the Office of Manned Space Flight:
MSC directed North American to modify the CM so that the sight assembly could be used from either docking window.
The Lunar Sample Receiving Laboratory, currently being planned for construction at MSC, would support - in addition to its vital role as a quarantine area - two important activities:
In September 1964, Hamilton Standard, manufacturer of the portable life support system (PLSS), had established a 108-watt-hour capacity for the system's batteries. And on the basis of that figure, Grumman had been authorized to proceed with the development of the LEM's battery charger. (The size of the charger was determined by several factors, but primarily by the size of the battery and time limits for recharging.)
During November, however, Hamilton Standard and Crew Systems Division (CSD) engineers advised the Instrumentation and Electronic Systems Division (IESD) that the PLSS's power requirements had increased to about 200 watt-hours. (CSD had jurisdiction over the PLSS, including battery requirements; IESD was responsible for the charger.) Hamilton Standard placed most of the blame on the cooling pump motor, which proved far less efficient than anticipated, as well as on the addition of biosensor equipment. ASPO Manager Joseph F. Shea, reviewing the company's explanation, commented that "this says what happened . . . but is far from a justification - this is the type of thing we should understand well enough to anticipate." "How can this happen," he wondered, ". . . in an area which has been subjected to so much discussion and delay?"
Representatives from Grumman and Hamilton Standard, meeting at MSC on December 17, redefined PLSS battery and charging requirements, and Grumman was directed to proceed with the development of the battery charger. This episode was accompanied by some sense of urgency, since Grumman had to have firm requirements before the end of year to prevent a schedule slippage.
Ling-Temco-Vought began large-scale developmental testing of the radiator for the Block II CSM environmental control system. One problem immediately apparent was the radiator's performance under extreme conditions.
Crew Systems Division approved the use of modified Gemini space suits in Block I Apollo spacecraft. MSC and David Clark Company amended their Gemini suit contract to cover design and fabrication of a prototype Block I suit.
Grumman ordered its major subcontractors supplying electronic equipment for the LEM to implement revised test programs and hardware schedules (in line with the new design approach). A similar directive went to RCA to modify the attitude and translation and the descent engine control assemblies as required for the new concept of an integrated assembly for guidance, navigation, and control of the spacecraft.
After conferring with the Space Medicine Branch and with the Gemini and Apollo support offices, Crew Systems Division officials opted for identical bioinstrumentation in both blocks of Apollo spacecraft. Hamilton Standard would also try to use identical harnesses.
MSC's Guidance and Control Division conducted a pilot simulation study to determine whether a pilot could take over manual control of the LEM between 4,572 and 3,048 m (15,000 and 10,000 ft) above the lunar surface and satisfactorily land the vehicle.
North American and Lockheed summarized the qualification program for the launch escape and pitch control motors. While several performance deviations were reported, these were minor and, in general, the presentation was deemed satisfactory. North American followed up on the discrepancies and, on March 22, the motors were declared flight-qualified.
At the fourth meeting of the Reference Trajectory Sub-Panel, MSC and MSFC members agreed on a trajectory with a launch azimuth of 108 degrees. Translunar injection would be performed over the Pacific Ocean during the first or second orbits. First-orbit injection would fix the minimum time required before the maneuver. Injection on the second pass would determine consequent penalties. The actions were initiated by Mission Planning and Analysis Division (MPAD) and were required to solidify and minimize analytical studies and operational planning.
William A. Lee, chief of ASPO's Operations Planning Division, outlined the space suit design criteria for Apollo missions 204 and 205. Modified Gemini space suits were to be used.
ASPO's Systems Engineering Division (SED) investigated the possibility of partial donning of the space suit (sans helmet and gloves) and the consequent effects upon operation of the CM environmental control system (ECS). (Current ECS design called for shirtsleeve and full-suited operations.) The systems engineers found that, with vehicle reliability based upon shirtsleeve environments, wearing part of the suit contributed little toward protecting the astronaut against loss of cabin pressure.
Most pressure-seal failures in the spacecraft would still allow the astronaut time to don the complete suit. Catastrophic failures (i.e., loss of windows or hatches) were highly improbable, but if one of this type occurred, depressurization would be so rapid as to preclude the astronaut's donning even a part of the suit. Actually, overall mission reliability was greatest with the shirtsleeve environment; continuous suit wear degraded the garment's reliability for the lunar exploration phase of the flight. Moreover, a number of design changes in the spacecraft would be required by partial suit wear.
SED concluded that, to build confidence in the spacecraft's pressurization system, Block I CM's should be outfitted for partial suit wear. In Block II vehicles the suit should not be worn during translunar mission phases (again because of mission reliability). SED recommended to the ASPO Manager, therefore, that he direct North American to incorporate provisions for partial suit wear in Block I and to retain the shirtsleeve concept for the Block II spacecraft.
The Preliminary Design Review of the Block II CM was held at North American's Downey, Calif., plant. Ten working groups evaluated the spacecraft design and resolved numerous minor details. They then reported to a review board of NASA and North American officials.
ASPO Manager Joseph F. Shea informed Apollo Program Director Samuel C. Phillips that he planned to conduct a program review with MIT during January 1965, similar to the North American, AC Spark Plug, and Grumman program reviews, but with certain differences, since MIT was a non- profit organization and the scope of its work much narrower than the prime hardware contractors. Shea pointed out that 1965 would be the most critical year of the MIT effort; during that year all drawings for the Block I, Block II, and LEM guidance navigation and control programs should be released. Consequently, the program review at MIT would examine only that one year.
Shea said he would meet with C. Stark Draper on January 14 and discuss with him "where we stand with respect to the MIT work of the past and our concerns for the future." During the week of January 18, MSC would send 14 teams to MIT to meet with their counterparts, and the following week a review board, chaired by R. C. Duncan of MSC, would go over the work of the individual MIT-NASA teams in depth and agree upon the program for 1965. The 14 teams would be: Reliability and Quality Assurance, Field Operations, Documentation and Configuration Management, Systems Assembly and Test, Guidance and Mission Analysis, Simulation, Ground Support Equipment, Optics, Inertial Systems and Sensors, Computer, Radar, Training; Terms, Conditions, Rates and Factors; and Statement of Work Integration.
Shea felt that the review would give MIT a clearer understanding of their part in the guidance, navigation, and control system development. He recommended that Phillips discuss the general nature of the program review with George E. Mueller and Robert C. Seamans, Jr., so they would both understand ASPO's objectives.
Phillips forwarded the letter to Associate Administrator for Manned Space Flight George E. Mueller along with his comments on the proposal. He said, "I think it is a good plan and that the results will be beneficial to the program. I urge your support should it become necessary."
![]() | Apollo - Space suit A-3H-024 with Lunar Excursion Module astronaut restraint harnes Credit: NASA. 26,465 bytes. 214 x 437 pixels. |
Changing the CM back-face temperature requirement from 600 degrees F at touchdown to 600 degrees F at parachute deployment threatened to increase the cabin air temperature. Physiologists at MSC had previously declared that the cabin temperature should not exceed 100 degrees F. The proposed change in the back-face requirement, North American reported, would raise the cabin's interior to 125 degrees F. MSC's Crew Systems Division reviewed these factors and decided the increased cabin temperature would not be acceptable.
William A. Lee, chief of ASPO's Operations Planning Division, announced a revised Apollo launch schedule for 1966 and 1967. In 1968, a week-long earth orbital flight would be a dress rehearsal for the lunar mission. "Then the moon," Lee predicted. "We have a fighting chance to make it by 1970," he said, "and also stay within the 20 billion price tag set . . . by former President Kennedy."
MSC was reviewing the control-display systems of the CSM and LEM to assess operational constraints. North American was requested to study all controls, displays, and systems functions for manned spacecraft to identify and eliminate single-point failures.
North American selected Dalmo-Victor to supply S-band high-gain antennas for Apollo CSM's. (The deployable antenna would be used beyond 14,816 km (8,000 nm) from the earth.) Dalmo-Victor would complete the antenna design and carry out the development work, and North American would procure production units under a supplemental contract.
NASA announced that Kennedy Space Center's Launch Complex 16, a Titan missile facility, would be converted into static test stands for Apollo spacecraft. This decision eliminated the need for such a facility originally planned on Merritt Island and, it was predicted, would cost little more than a fourth of the $7 million estimated for the new site.
Grumman and Hamilton Standard were exploring various designs for the extravehicular mobility unit. On the basis of some early conclusions, the MSC Crew Systems Division (CSD) recommended that meteoroid and thermal protection be provided by a single garment. Preliminary hypervelocity tests placed the garment's reliability at 0.999. Each would weigh about 7.7 kg (17 lbs), about 2.3 kg (5 lbs) less than the two-garment design. CSD further recommended that the unit be stored either in the LEM's descent stage or in a jettisonable container in the ascent portion.
Donald K. Slayton, MSC Assistant Director for Flight Crew Operations, pointed out to Managers of the ASPO and the Gemini Program Office that a number of units of spacecraft control and display equipment were needed to support the Spacecraft Control Office in the areas of spacecraft crew procedures development, crew station equipment development, flight crew familiarization, training, and spacecraft mission preparation. Such equipment was needed within MSC, at other NASA Centers, and at contractor facilities to support centrifuge programs, research vehicle programs, launch abort simulations, rendezvous and docking simulations, retrofire and reentry simulations, and other mission phase simulations. Slayton emphasized that uncoordinated requests for hardware procurement to support these programs were excessively costly in terms of equipment.
Slayton said that a "satisfactory method to reduce costs and increase equipment utilization and effectiveness is to assign responsibility as custodian to one technically cognizant organization which will ascertain the total requirement for equipment and be responsible for coordinating procurement and allocating and transferring hardware assignment required to meet program requirements." He recommended that the Crew Station Branch of Flight Crew Support Division be given the consolidated responsibilities.
MSC evaluated the VHF communications requirements and determined that there was no requirement for the LEM to communicate simultaneously over VHF with:
The first meeting of the Configuration Control Board was held at MSC with ASPO Manager Joseph F. Shea as chairman. Approval was given to delete 10 Apollo guidance and navigation systems; and W. F. Rector III was directed to look into the use of computers and prototype units for electronic systems integration. In other actions, a decision on changes to CSM specifications to provide for the heavyweight LEM (a proposed increase from 12,705 to 14,515 kg (28,000 to 32,000 lbs)) was deferred until the next meeting; and Owen Maynard was directed to identify all Block II changes that must be implemented regardless of impact and have them ready for Board action by February 18, 1965.
Development firings of the launch escape system's drogue and pilot parachute mortars were completed, and the units were slated for qualification trials the following month.
OMSF asked MSC to provide NASA Headquarters with a statement of "the minimum definition of meteoroid environment in cislunar space" which would be necessary for confidence that Apollo could withstand the meteoroid flux. The "desirable degree of definition" was also requested. This material was to be used as inputs to the current cislunar Pegasus studies being conducted by OMSF.
Significant agreements from the Eleventh MSC-MSFC Flight Mechanics, Dynamics, Guidance and Control Panel meeting were:
During testing, it was found that blast effects of the linear charge for the CM/SM umbilical cutter caused considerable damage to the heatshield. To circumvent this problem, North American designed a vastly improved pyrotechnic-driven, guillotine-type cutter. MSC readily approved the new' device for both Block I and II spacecraft.
North American completed acceptance tests for the CSM sequential and propulsion systems trainers. On January 15 the equipment was shipped to MSC, where it was installed the following week. This terminated the procurement program for the Apollo systems trainer.
After reviewing the requirement for extravehicular transfer (EVT) from the LEM to the CM, MSC reaffirmed its validity. The Center already had approved additional fuel for the CM, to lengthen its rendezvousing range, and modifications of the vehicle's hatch to permit exterior operation. The need for a greater protection for the astronaut during EVT would be determined largely by current thermal tests of the pressure suit being conducted by NASA and Hamilton Standard. While the emergency oxygen system was unnecessary during normal transfer from one vehicle to the other, it was essential during EVT or lunar surface activities.
MSC was studying several approaches to the problems of automatic thermal control and automatic reacquisition of the earth by the S-band high-gain antenna while the CSM circled the moon. (The Block II spacecraft, MSC had stated, must have the ability to perform these functions wholly on its own. During an extended stay of the LEM on the lunar surface, when the CSM pilot needed uninterrupted sleep periods, antenna reacquisition was absolutely essential for telemetering data back to earth. And although the requirements for passive thermal control were not yet well defined, the spacecraft's attitude must likewise be automatically controlled.)
Robert C. Duncan, chief of the MSC Guidance and Control Division, presented his section's recommendations for solving these problems, which ultimately won ASPO's concurrence. Precise spacecraft body rates, Duncan said, should be maintained by the stabilization and control system. The position of the S-band antenna should be telemetered to the ground, where the angle required for reacquisition would be computed. The antenna would then be repositioned by commands sent through the updata link.
MSC White Sands Missile Operations was renamed MSC White Sands Operations to eliminate the similarity to the Army's White Sands Missile Range.
General Motors' Allison Division completed qualification testing of the propellant tanks for the service propulsion system.
The Structures and Mechanics Division approved a low-burst factor for the gaseous helium tanks on the LEM (as recommended by Grumman). This change permitted a substantial lightening of the spacecraft's propulsion systems: descent 45 kg (99 lbs); ascent, 13 kg (29 lbs); reaction control, 2.3 kg (5 lbs).
The MSC Mission Planning and Analysis Division made a presentation to Joseph F. Shea, Christopher C. Kraft, Jr., and Donald K. Slayton on Apollo Missions 201, 202, 204, 206, 207, 501, 503, and 504. It was stated that 204B was to be a repeat of 202; 204C was to be a repeat of 201; and 204D was to be the same as 204A but would be flown unmanned.
In simulated zero-g conditions aboard KC-135s, technicians evaluated a number of different devices for restraining the LEM crewmen. These trials demonstrated clearly the need for a hip restraint and for a downward force to hold the astronaut securely to the cabin floor. In mid-February a second series of flights tested the combination that seemed most promising: Velcro shoes that would be used together with Velcropile carpeting on the cabin floor of the spacecraft; a harness that enveloped the astronaut's chest and, through an intricate system of cables and pulleys, exerted a constant downward pressure; and a waist strap that secured the harness to the lighting panel immediately facing the crewman. These evaluations permitted Grumman to complete the design of the restraint system.
The test altitude for mission A-004 was decreased from 22,860 to 19,507 m (75,000 to 64,000 ft) to ensure the attainment of limit loads on the CM during a tumbling power-on abort.
The new membership of the MSC Manned Spacecraft Criteria and Standards Board, established September 4, 1963, was: F. John Bailey, Jr., Chairman; James W. Donnell, Secretary; James A. Chamberlin, Kenneth S. Kleinknecht, W. R. Durrett, William M. Bland, and Norman F. Smith.
Northrop-Ventura verified the strength of the dual drogue parachutes in a drop test at El Centro, Calif. This was also the first airborne test of the new mortar by which the drogues were deployed and of the new pilot parachute risers, made of steel cables. All planned objectives were met.
Space Ordnance Systems was selected to develop the explosive bolts that held the LEM's two stages together.
Parallel development of the LEM descent engine was halted. Space Technology Laboratories was named the sole contractor; the Rocketdyne contract was canceled. Grumman estimated that the cost of Rocketdyne's program would be about $25 million at termination.
Two underwater firings verified the design concept of the main parachute disconnects.
At the request of Maj. Gen. Samuel C. Phillips, Apollo Program Director, ASPO reexamined the performance requirements for spacecraft slated for launch with Saturn IBs. MSC currently assessed that the launch vehicle was able to put 16,102 kg (35,500 lbs) into a circular orbit 105 nm above the earth. Based on the spacecraft control weights, however, it appeared that the total injected weight of the modules would exceed this amount by some 395 kg (870 lbs).
The persistent problem of combustion instability in the LEM ascent engine, unyielding to several major injector redesigns, was still present during test firings at Bell Aerosystems. Following reviews by MSC and Grumman, the "mainstream effort" in the injector program was "reoriented" to a design that included baffles on the face of the injector. Largely because of this troublesome factor, it now appeared that the ascent engine's development cost, which only four months earlier Bell and Grumman had estimated at $20 million, would probably approach $34 million. Bell also forecast a 15.4-kg (34-lb) weight increase for the engine because of a longer burn design and a strengthened nozzle extension.
Apollo Program Director Samuel C. Phillips forecast "heavy ground testing" for Apollo during 1965. The coming months, he said, should see the completion of testing on the first Apollo spacecraft intended for manned space flight, as well as flight qualification of the Saturn IB and initial testing of the Saturn V launch vehicles.
Two construction companies, Blount Brothers Corporation, Montgomery, Ala., and Chicago Bridge and Iron Company, Oak Park, Ill., received a joint contract (worth $5,178,000) for construction of a vacuum chamber at the Lewis Research Center's Plum Brook Station. The facility, which would be used for spacecraft and propulsion system testing, would be one of the largest such simulators in the world.
The MSC-MSFC Mechanical Integration Panel discussed the possibility that, when deployed, the LEM adapter panels might interfere with radio communications via the S-band high-gain antenna. On earth-orbital missions, the panel found, the S-band antenna would be rendere useless. They recommended that MSC's Instrumentation and Electronic Systems Division investigate alternative modes for communications during the transposition and docking phase of the flight. During lunar missions, on the other hand, the panel found that, with panels deployed at a 45 degree angle, the high-gain antenna could be used as early as 15 minutes after translunar injection. Spacecraft-to-ground communications during transposition and docking could thus be available and manual tracking would not be needed. North American was informed that the high-gain antenna would be used during this maneuver, and was directed to fix the panel deployment angle for all Block II spacecraft at 45 degrees.
ASPO approved the technique for LEM S-IVB separation during manned missions, a method recommended jointly by North American and Grumman. After the CSM docked with the LEM, the necessary electrical circuit between the two spacecraft would be closed manually. Explosive charges would then free the LEM from the adapter on the S-IVB.
The optimism that permeated the Apollo program was reflected in statements by NASA's Associate Administrator, Robert C. Seamans, Jr., during budget briefings for the forthcoming year. He was "greatly encouraged" by recent design freezes and "very reassured" by testing of propulsion systems and launch vehicle stages. "We really feel," Seamans said, ". . . that we can get off the (lunar landing) flight on an earlier mission than I would have said a year ago?' Certainly it was "conceivable" that the moon landing could come "in early 1970."
Dalmo-Victor, vendor of the LEM S-band antenna, was given firm requirements for tracking and coverage, thus enabling the company to freeze the antenna design.
To determine flotation characteristics of the spacecraft, the Stevens Institute of Technology began a testing program using one-tenth scale models of the CM. Researchers found that the sequence in which the uprighting bags were deployed was equally critical in both a calm sea and in various wave conditions; improper deployment caused the vehicle to assume an apex-down position. These trials disproved predictions that wave action would upright the spacecraft from this attitude.
Further testing during the following month reinforced these findings. But because sequential deployment would degrade reliability of the system, North American held that the bags must upright the spacecraft irrespective of the order of their inflation. Stevens' investigators would continue their program, examining the CM's characteristics under a variety of weight and center of gravity conditions.
MSC negotiated a backup Block II space suit development program with David Clark Company, which paralleled the Hamilton Standard program, at a cost of $176,000. Criteria for selecting the suit for ultimate development for Block II would be taken from the Extravehicular Mobility Unit Design and Performance Specification. A selection test program would be conducted at MSC using the CM mockup, the lunar simulation facility, and the LEM mockup.
ASPO established an operational requirement for propellant gauges in the LEM descent stage, the exact details to be worked out by Grumman. The gauges must be accurate to within one-half of one percent when less than one-fourth of the propellants remained.
Warren J. North, Chairman of the Lunar Landing Research Vehicle (LLRV) Coordination Panel, reported to MSC Director Robert R. Gilruth that the LLRV had been flown 10 times by Flight Research Center pilots - eight times by Joe Walker and twice by Don Mallick. Maximum altitude achieved was 91 m (300 ft) and maximum forward velocity was 12 m (40 ft) per sec.
At a meeting held at Grumman, RCA presented its study on thermal effects for a fixed rendezvous radar antenna assembly which would be protected from the CSM service propulsion system by a thermal shield.
MSC evaluated Grumman's proposal to stage components of the extravehicular mobility unit to achieve a substantial weight reduction.
The first major Saturn V flight component, a 10-m (33-ft) diameter, 27,215 kg (60,000 lb corrugated tail section which would support the booster's 6,672 kilonewtons (1.5-million-lb) thrust engines, arrived at MSFC from NASA's Michoud Operations near New Orleans. The section was one of five major structural units comprising Saturn V's first stage.
MSC canceled plans (originally proposed by North American) for a device to detect failures in the reaction control system (RCS) for Block I CSMs. This was done partly because of impending weight, cost, and schedule penalties, but also because, given an RCS failure during earth orbit, the crew could detect it in time to return to earth safely even without the proposed device. This action in no way affected the effort to devise such a detection system for the Block II CSM or the LEM, however.
![]() | Apollo - Test subject wears Apollo overgarment designed for use on lunar surface Credit: NASA. 16,092 bytes. 210 x 436 pixels. |
Initial development testing of LEM restraint systems was completed. Under zero-g conditions, investigators found, positive restraints for the crew were essential. While the system must be further refined, it consisted essentially of a harness that secured the astronaut's hips (thus providing a pivot point) and held him firmly on the cabin floor.
After examining the CM's potable water system, engineers in the MSC Crew Systems Division found that the Gemini pistol-type water dispenser could not be used in the Apollo spacecraft without some changes in the dispenser design.
Apollo boilerplate 28 underwent its second water impact test. Despite its strengthened aft structure, in this and a subsequent drop on February 9 the vehicle again suffered damage to the aft heatshield and bulkhead, though far less severe than that experienced in its initial test. The impact problem, it was obvious, was not yet solved.
ASPO concurred with the requirement to provide an emergency defecation capability aboard the LEM as established by MSC's Center Medical Programs Office. The addition of a Gemini-type defecation glove appeared to present a satisfactory solution. Crew Systems Division was directed to proceed with their recommendation and add the Gemini gloves to the LEM crew provisions.
Nine areas of scientific experiments for the first manned Apollo lunar landing mission had been summarized and experimenters were defining them for NASA. Space sciences project group expected to publish the complete report by March 1, to be followed by requests for proposals from industry on designing and producing instrument packages. A major effort was under way by a NASA task force making a time-motion study of how best to use the limited lunar stay-time of two hours' minimum for the first flight.
To make it easier to get in and out of the spacecraft, Grumman modified the LEM's forward hatch. During mobility tests on the company's mockup, a hinged, trapezoidal-shaped door had proved superior to the original circular hatch, so the earlier design was dropped.
ASPO Manager Joseph F. Shea reiterated the space agency's phasic view of the Apollo program. He was well pleased with the pace of the program and reported that ground testing of all CSM subsystems was "well along." Reflecting on the year just past, Shea observed that it was one in which Apollo objectives were achieved "milestone by milestone?' He was equally optimistic about Apollo's progress during the coming months, predicting that there would be "three Apollo spacecraft in continuous ground testing" by the end of the year.
Pacific Crane and Rigging Company received a NASA contract, worth $8.3 million, to install ground equipment at Kennedy Space Center's Saturn V facility, Launch Complex 39. On the following day, the Army Corps of Engineers awarded a $2,179,000 contract to R. E. Carlson Corporation, St. Petersburg, Fla., to modify Launch Complex 34 to handle the Saturn IB.
The Apollo-Saturn Crew Safety Panel decided on a number of emergency detection system (EDS) and abort procedures for the early Apollo flights:
ASPO established radiation reliability goals for Apollo. These figures would be used to coordinate the radiation program, to define the allowable dosages, and to determine the effect of radiation on mission success. The crew safety goal (defined as the probability of a crewman's not suffering permanent injury or worse, nor his being incapacitated and thus no longer able to perform his duties) was set at 0.99999. The major hazard of a radiation environment, it was felt, was not the chance of fatal doses. It was, rather, the possibility of acute radiation sickness during the mission. The second reliability goal, that for success of the mission (the probability that the mission would not be aborted because of radiation environment), was placed at 0.98.
These values, ASPO Manager Joseph F. Shea emphasized, were based on the 8.3-day reference mission and on emergency dose limits previously set forth. They were not to be included in overall reliability goals for the spacecraft, nor were they to be met by weight increases or equipment relocations.
MSC questioned the necessity of using highly purified (and expensive) fuel-cell-type oxygen to maintain the cabin atmosphere during manned ground testing of the spacecraft. The Center, therefore, undertook a study of the resultant impurities and effect on crew habitability of using a commercial grade of aviation oxygen.
A device to maintain the spacecraft in a constant attitude was added to the LEM's primary attitude control system (ACS). The feature brought with it some undesirable handling characteristics, however: it would cause the vehicle to land long. Although this overshoot could be corrected by the pilot, and therefore was not dangerous operationally, it would require closer attention during final approach. The attitude hold, therefore, hardly eased the pilot's control task, which was, after all, its primary function. Instead of moving the device to the backup ACS (the abort section), the Engineering Simulation Branch of MSC's Guidance and Control Division recommended that the system be modified so that, if desired, the pilot could disengage the hold mechanism.
After considering possible impacts, MSC directed North American to implement real-time commands to the up-data link equipment on command modules 012 and 014.
SM 001's service propulsion engine was static-fired for 10 sec at White Sands. The firing was the first in a program to verify the mission profiles for later flight tests of the module. (SM 001 was the first major piece of flight-weight Apollo hardware.)
MSC, North American, and Grumman reviewed the results of Langley Research Center's LEM-active docking simulation. While the overhead mode of docking had been found to be acceptable, two items still caused some concern: (1) propellant consumption could exceed supply; and (2) angular rates at contact had occasionally exceeded specifications. Phase B (Grumman's portion) of the docking simulations, scheduled to begin in about two weeks, would further investigate these problems. Langley researchers also had evaluated several sighting aids for the LEM and recommended a projected image collimated (parallel in lines of direction) reticle as most practicable. Accordingly, on March 9, MSC directed Grumman to incorporate this type of sighting device into the design of their spacecraft.
Development tests recently completed by AiResearch on the water evaporator control system for the space suit heat exchanger disclosed its inadequacy because of its slow response time. To solve this problem, AiResearch and North American proposed an alternate control system approach similar to the glycol evaporator scheme used elsewhere in the environmental control system. This alternate design, which was tested and appeared a more desirable approach, would be incorporated on airframes 008 and 012 through Block II spacecraft. No schedule impact was anticipated.
NASA invited 113 scientists and 23 national space organizations to a conference at MSC to brief them on the Gemini and Apollo missions. As a result of the conference, NASA hoped to receive proposals for biomedical experiments to be performed in Gemini and Apollo spacecraft.
MSC deleted the requirement for a rendezvous radar in the CSM.
North American completed the first ground test model of the S-II stage of the Saturn V.
ASPO evaluated Grumman's proposal for an "all battery" system for the LEM descent stage. ASPO was aiming at a 35-hour lunar stay for the least weight; savings were realized by lessening battery capacities, by making the water tanks smaller, and by reducing some of the spacecraft's structural requirements.
ASPO and the MSC Instrumentation and Electronic Systems Division (IESD) formulated a program for electromagnetic compatibility testing of hardware aboard the CSM and LEM. The equipment would be mounted in spacecraft mockups, which would then be placed in the Center's anechoic chamber. In these tests, scheduled to begin about the first of September, IESD was to evaluate the compatibility of the spacecraft in docked and near-docked configurations, and of Block I spacecraft with the launch vehicle. The division was also to recommend testing procedures for the launch complex.
MSC modified its bubble helmet design to fit on an International Latex "state-of-the-art" space suit. A mockup of the helmet was used in don doff tests. Mean donning time was 4.2 sec; doff time averaged 1.47 sec. Further tests would be performed when a prototype helmet was completed (expected by February 26).
Evaluations of the three-foot probes on the LEM landing gear showed that the task of shutting off the engine prior to actual touchdown was even more difficult than controlling the vehicle's rate of descent. During simulated landings, about 70 percent of the time the spacecraft was less than 0.3 m (1 ft) high when shutdown came; on 20 percent of the runs, the engine was still burning at touchdown. Some change, either in switch location or in procedure, thus appeared necessary to shorten the delay between contact light and engine cutoff (an average of 0.7 sec).
North American selected the Ordnance Division of General Precision Link Group to supply the panel thrusters for the spacecraft lunar adapter.
To make room for a rendezvous study, MSC was forced to end, prematurely, its simulations of employing the LEM as a backup for the service propulsion system. Nonetheless, the LEM was evaluated in both manual and automatic operation. Although some sizable attitude changes were required, investigators found no serious problems with either steering accuracy or dynamic stability.
A drop test at EI Centro, Calif., demonstrated the ability of the drogue parachutes to sustain the ultimate disreefed load that would be imposed upon them during reentry. (For the current CM weight, that maximum load would be 7,711 kg (17,000 lbs) per parachute.) Preliminary data indicated that the two drogues had withstood loads of 8,803 and 8,165 kg (19,600 and 18,000 lbs). One of the drogues emerged unscathed; the other suffered only minor damage near the pocket of the reefing cutter.
Hamilton Standard, the extravehicular mobility unit contractor, completed a two-week wearing test of the Apollo liquid-cooled undergarment. Investigators found that the garment could be worn for the entire lunar mission without any serious discomfort.
MSC's Systems Engineering Division (SED) requested support from the Structures and Mechanics Division in determining the existence or extent of corrosion in the coolant loops of the SM electrical power subsystem (EPS) and the CM and LEM environmental control subsystems (ECS), resulting from the use of water glycol as coolant fluid. Informal contact had been made with W. R. Downs of the Structures and Mechanics Division and he had been given copies of contractor reports and correspondence between MSC, North American, and MIT pertaining to the problem. The contractors had conflicting positions regarding the extent and seriousness of glycol corrosion.
SED requested that a study be initiated to:
MSC relayed to NASA Headquarters North American's cost estimates for airlocks on the Apollo CM:
Spacecraft | Development | Unit Cost |
---|---|---|
Block I | $840,000 | $185,000 |
Block II | $960,000 | $112,000 |
Blocks I & II | $1,050,000 | $111,000 |
During late February and early March, North American completed a conceptual design study of an airlock for the Block I CMs. Designers found that such a device could be incorporated into the side access hatch. A substitute cover for the inner hatch and a panel to replace the window on the outer hatch would have to be developed, but these modifications would not interfere with the basic design of the spacecraft.
A study by General Electric affirmed the necessity for the steerable S-band antenna for communications between the spacecraft and the ground at lunar distances. Communications margins were so small that, at those distances, any degradation of equipment would seriously affect the spacecraft's contact with earth.
Crew Systems Division (CSD) informed the Astronaut Office that the requirements submitted by Astronaut Michael Collins on February 5 had been included in the Block II suit program plans. Those requirements for astronaut training suits were:
Suit Quantity | Type | Date Available |
---|---|---|
1 | A-5H | June 1965 |
6 | A-5H | December 1965 (or sooner if possible) |
6 | A-6H1 | March 1966 |
14 | A-6H2 | August 1966 |
The CM's waste management system demonstrated its feasibility under zero-g conditions during flights from Wright-Patterson Air Force Base. The system successfully contained both solid and liquid wastes and did not leak even when filled to capacity.
NASA awarded an $8,879,832 fixed-price contract to the Univac Division of Sperry Rand Corporation for digital data processors for the Apollo project. Univac also would assist in modifying extant computer programs to meet Apollo requirements.
In a memorandum to ASPO, Samuel C. Phillips, Apollo Program Director, inquired about realigning the schedules of contractors to meet revised delivery and launch timetables for Apollo. Phillips tentatively set forth deliveries of six spacecraft (CSM/LEMs) during 1967 and eight during each succeeding year; he outlined eight manned launches per year also, starting in 1969.
In the first of a series of manufacturing review meetings at Bethpage, N.Y., it was learned that Grumman's tooling program was behind schedule (caused primarily by engineering changes). Tool manufacturing might recoup much of the lost time, but this process was highly vulnerable to further design changes. Completion of tooling for the ascent stage of LTA-3 was now set for late April, a production delay of about two months.
A Saturn I vehicle SA-9 launched a multiple payload into a high 744 by 496 km (462 by 308 mi) earth orbit. The rocket carried a boilerplate (BP) CSM (BP-16) and, fitted inside the SM, the Pegasus I meteoroid detection satellite. This was the eighth successful Saturn flight in a row, and the first to carry an active payload. BP-16's launch escape tower was jettisoned following second-stage S-IV ignition. After attaining orbit, the spacecraft were separated from the S-IV. Thereupon the Pegasus I's panels were deployed and were ready to perform their task, i.e., registering meteoroid impact and relaying the information to the ground.
MSC announced a realignment of specialty areas for the 13 astronauts not assigned to forthcoming Gemini missions (GT 3 through 5) or to strictly administrative positions:
Charles A. Bassett - operations handbooks, training, and simulators
Alan L. Bean - recovery systems
Michael Collins - pressure suits and extravehicular activity
David R. Scott - mission planning and guidance and navigation
Clifton C. Williams - range operations, deep space instrumentation, and crew safety.
Donn F. Eisele - CSM and LEM
William A. Anders - environmental control system and radiation and thermal systems
Eugene A. Cernan - boosters, spacecraft propulsion, and the Agena stage
Roger B. Chaffee - communications, flight controls, and docking
R. Walter Cunningham - electrical and sequential systems and non-flight experiments
Russell L. Schweickart - in-flight experiments and future programs.
North American proposed an idea for increasing the CM's land landing capability. This could be done, the company asserted, by raising the water impact limits (thus exceeding normal tolerances) and stiffening the shock struts.
ASPO Manager Joseph F. Shea clarified the manned unmanned capabilities required of Block I CSM spacecraft to ensure that end-item specifications appropriately reflect those capabilities.
CSMs 017 and 020 would fly unmanned entry tests on the Saturn V and need not be capable of manned missions. CSMs 012 and 014 were to be delivered to KSC for manned orbital missions on the Saturn IB but must be capable of being modified to fly unmanned missions.
The planning for CSM 012 should be such that the mission type could be selected 5½ months prior to the scheduled launch of the 204 mission, yet not delay the launch.
MSC directed North American to delete the rendezvous radar from Block II CSMs. On those spacecraft North American instead would install LEM rendezvous radar transponders. Grumman, in turn, was ordered to halt its work on the CSM rendezvous radar (both in-house and at RCA) as well as all support efforts. At the same time, however, the company was directed to incorporate a tracking light on the LEM (compatible with the CSM telescope sextant) and to modify the spacecraft's VHF equipment to permit range extraction in the CSM.
The U.S. Navy Air Crew Equipment Laboratory began testing the Gemini Block I Apollo space suit in a wide range of environmental temperatures to determine the comfort and physiological responses of the wearer. The program, delayed because of difficulties with humidity control, was to be completed in three to four weeks.
![]() | Apollo - Astronaut John Bull wears newly designed Apollo pressure suit Credit: NASA. 21,789 bytes. 198 x 417 pixels. |
MSC's Crew Systems Division decreed that the extravehicular mobility unit (EMU) would employ a single garment for both thermal and meteoroid protection. By an earlier decision, the penetration probability requirement had been lowered from 0.9999 to 0.999. This change, along with the use of newer, more efficient materials, promised a substantial lightening of the garment (hopefully down to about 7.7 kg (17 lbs), excluding visors, gloves, and boots). The division also deleted the requirement for a separate meteoroid visor, because the thermal and glare visors provided ample protection against meteoroids as well. Tests by Ling-Temco-Vought confirmed the need for thermal protection over the pressure suit during extravehicular transfer by the LEM crewmen.
Because of the CM's recent weight growth, the launch escape system (LES) was incapable of lifting the spacecraft the "specification" distance away from the booster. The performance required of the LES was being studied further; investigators were especially concerned with the heat and blast effects of an exploding booster, and possible deleterious effects upon the parachutes.
LEM Test Article 2 was shipped to Marshall Space Flight Center to undergo a series of Saturn booster vibration tests.
NASA selected Philco's Aeronutronic Division to design a penetrometer for possible use in the Apollo program. Impacting on the moon, the device would measure the firmness and bearing strength of the surface. Used in conjunction with an orbiting spacecraft, the system could provide scientific information about areas of the moon that were inaccessible by any other means. Langley Research Center would negotiate and manage the contract, estimated to be worth $1 million.
To eliminate interference between the S-IVB stage and the instrument unit, MSC directed North American to modify the deployment angle of the adapter panels. Originally designed to rotate 170 degrees, the panels should open but 45 degrees (60 degrees during abort), where they were to be secured while the CSM docked with and extracted the LEM.
But at this smaller angle, the panels now blocked the CM's four flush- mounted omnidirectional antennas, used during near-earth phases of the mission. While turning around and docking, the astronauts thus had to communicate with the ground via the steerable high gain antenna. For Block II spacecraft, therefore, MSC concurrently ordered North American to broaden the S-band equipment's capability to permit it to operate within 4,630 km (2,500 nm) of earth.
William F. Rector III, MSC's LEM Project Officer, reported at an ASPO Manager's Staff Meeting that the expected firing date for the heavyweight ascent (HA) rig #3 at WSTF had been slipped from March 18, 1965, until April 13. Grumman personnel at White Sands said the slip was necessary because
MSC and North American conducted Part 2 of the mockup review of the CM's forward compartment and lower equipment bay. (Part 1 was accomplished January 14-15. This staged procedure was in line with the contractor's proposal for a progressive review program leading up to the Critical Design Review scheduled for July 19-23.) Except for minor changes, the design was acceptable.
NASA awarded a fixed-price contract (worth l.5 million) to IBM to design a backup guidance and navigation computer for the Apollo CM.
MSC's Procurement and Contracts Division notified ASPO that John B. Alldredge had been assigned as the Contracting Officer for Contract NAS 9-150 (the North American contract), replacing Henry P. Yschek.
NASA awarded a $2,740,000 fixed-price contract to the Collins Radio Company for S-band telemetry equipment. Collins would install the equipment at three antenna facilities that supported Apollo lunar missions (at Goldstone, Calif.; Canberra, Australia; and Madrid, Spain).
On the basis of in-house tests, Grumman recommended a scheme for exterior lighting on the LEM. The design copied standard aeronautical practice (i.e., red, port; green, starboard; and amber, underside). White lights marked the spacecraft, both fore and aft; to distinguish between the two white lights, the aft one contained a flasher.
MSC and the David Clark Company reached an agreement on a contract for Apollo Block I space suits. The first suits, expected by July 1, would go to North American for testing.
KSC supplemented Chrysler Corporation's contract for support services for the Saturn I and IB launch programs. Effective through June 30, 1968, the agreement would cost NASA $41 million plus an award fee.
Using a mockup Apollo CM, MSC Crew Systems Division tested the time in which an astronaut could don and doff the Block I pressure garment assembly while at various stations inside the spacecraft. The two subjects' average donning times were nine min 33 sec and 10 min; mean doffing times were four min five sec and five min 23 sec.
DeHavilland completed deployment tests of the CM's pop-up recovery antenna.
To determine thermal and vacuum effects on the CM's parachutes, MSC Structures and Mechanics Division tested nylon samples in a vacuum under varying temperature conditions. After two weeks of exposure to this spacelike environment, the samples exhibited only a 16 percent loss of strength (as against a design allowable of 25 percent).
Louis Walter, Goddard Space Flight Center geochemist, reported that his research with tektites indicated the lunar surface may be sandlike. Waiter had discovered the presence of coesite in tektites, believed to be particles of the moon sent into space when meteorites impact the lunar surface. Coesite, also found at known meteorite craters, is a form of silicon dioxide - a major constituent of sand - produced under high pressure. "If we accept the lunar origin of tektites," Walter said, "this would prove or indicate that the parent material on the moon is something like the welded tuft that we find in Yellowstone Park, Iceland, New Zealand, and elsewhere." Welded tuft was said to have some of the qualities of beach sand.
ASPO Manager Joseph F. Shea named William A. Lee as an assistant program manager. Lee, who previously headed the Operations Planning Division (which had been absorbed into Owen E. Maynard's Systems Engineering Division), now assumed responsibility for Apollo Operations (both the flight-test program and the lunar mission). Lee thus joined Harry L. Reynolds, also an assistant manager, who was assigned to the LEM's development. Deputy Manager Robert O. Piland continued overseeing the CSM's development and, along with Shea, overall program management.
Because of a change in the size of the entry corridor, North American technicians sought to determine whether they might relax the requirements for pointing accuracy of the stabilization and control system at transearth injection. They could not. To ensure a delta-V reserve, the accuracy requirement must remain unchanged.
Grumman reported three major problems with the LEM:
ASPO organized a new management group, the Configuration Control Board, to oversee proposals for engineering changes. The board comprised groups representing management, the three Apollo modules, and critical Apollo systems (guidance and navigation, spacecraft checkout equipment, and the extravehicular mobility unit).
MSC Structures and Mechanics Division presented their findings on the possibility of qualifying the spacecraft's thermal protection in a single mission. While one flight was adequate to prove the ablator's performance, the division asserted, it would not satisfy the requirements as defined in the specification.
MSC decided in favor of an "all-battery" LEM (i.e., batteries rather than fuel cells in both stages of the vehicle) and notified Grumman accordingly. Pratt and Whitney's subcontract for fuel cells would be terminated on April 1; also, Grumman would assume parenthood of GE's contract (originally let by Pratt and Whitney) for the electrical control assembly.
To prevent radiator freezing - and consequent performance degradation - in the Block I environmental control system, MSC ordered North American to supplement the system's coolant. Forty-five kg (100 lbs) of water would be stored in the SMs of airframes 012 and 014.
NASA and General Motors' AC Spark Plug Division signed the definitive contract (cost-plus-incentive-fee type) for primary guidance and navigation systems for the Apollo spacecraft (both CMs and LEMs). The agreement, extending through December 1969, covered manufacturing and testing of the systems.
North American gave boilerplate 28 its third water drop test. Upon impact, the spacecraft again suffered some structural damage to the heatshield and the core, though much less than it had experienced on its initial drop. Conditions in this test were at least as severe as in previous ones, yet the vehicle remained watertight.
Researchers at Ames Research Center began testing the stability of the Block II CM and escape tower (with canards) in the Center's wind tunnel. Tests would be conducted on the CM itself and while mated with the tower.
Northrop-Ventura began qualification testing of the CM's earth landing sequence controller.
Missiles and Rockets reported a statement by Joseph F. Shea, ASPO manager, that MSC had no serious weight problems with the Apollo spacecraft. The current weight, he said, was 454 kg (1,000 lbs) under the 40,823 kg (90,000 lb) goal. Moreover, the increased payload of the Saturn V to 43,091 kg (95,000 lbs) permitted further increases. Shea admitted, however, that the LEM was growing; recent decisions in favor of safety and redundancy could raise the module's weight from 13,381 kg to 14,575 kg (29,500 lbs to 32,000 lbs).
Preliminary investigation by Grumman indicated that, with an all-battery LEM, passive thermal control of the spacecraft was doubtful. (And this analysis did not include the scientific experiments package, which, with its radioisotope generator, only increased the problem. Grumman and MSC Structures and Mechanics Division engineers were investigating alternate locations for the batteries and modifications to the surface coatings of the spacecraft as possible solutions.
Avco found that cracking of the ablator during cure was caused by incomplete filling, leaving small voids in the material. The company ordered several changes in the manufacturing process: a different shape for the tip of the "filling gun" to facilitate filling those cells that were slightly distorted; manual rather than automatic retraction of the gun; and x-raying of the ablator prior to curing. Using these new methods, Avco repaired the aft heatshield and toroidal corner of airframe 006, which was then re-cured. No cracking was visible. The crew compartment heatshield for airframe 009 came through its cure equally well. Voids in the ablator had been reduced to about two percent. "It appears," Structures and Mechanics Division reported, "that the problem of cracking . . . has been solved by better manufacturing."
Initial flights of the LLRV interested MSC's Guidance and Control Division because they represented first flight tests of a vehicle with control characteristics similar to the LEM. The Division recommended the following specific items for inclusion in the LLRV flight test program:
NASA announced that it had awarded a$3,713,400 contract to Raytheon Company for digital systems for the Apollo program. The equipment, which would be installed at control and tracking stations, would display information telemetered from the spacecraft, and thus would support mission decisions on the ground.
During the flight of boilerplate (BP) 23, the Little Joe II's control system had coupled with the first lateral bending mode of the vehicle. To ensure against any recurrence of this problem on the forthcoming flight of BP-22, MSC asked North American to submit their latest figures on the stiffness of the spacecraft and its escape tower. These data would be used to compute the first bending mode of BP-22 and its launch vehicle.
MSC concurred in North American's recommendation that the 27½ degrees hang angle during parachute descent be retained. (Tests with one-tenth scale models of the CM indicated that, at the higher impact angles, excessive pressures would be exerted on the sidewalls of the vehicle.) Provisions for a "dual hang angle" were still in effect for Block I spacecraft up to airframe 017. Beginning with that number, the face sheets on the aft heatshield would be modified to conform to the 27½ degree impact angle.
Crew Systems Division (CSD) engineers were studying several items that, though intended specifically for the Gemini program, were applicable to Apollo as well:
MSC's Structures and Mechanics Division was conducting studies of lunar landing conditions. In one study, mathematical data concerning the lunar surface, LEM descent velocity, and physical properties of LEM landing gear and engine skirt were compiled. A computer was programmed with these data, producing images on a video screen, allowing engineers to review hypothetical landings in slow motion.
In another study, a one-sixth scale model of the LEM landing gear was dropped from several feet to a platform which could be adjusted to different slopes. Impact data, gross stability, acceleration, and stroke of the landing gear were recorded. Although the platform landing surface could not duplicate the lunar surface as well as the computer, the drop could verify data developed in the computer program. The results of these studies would aid in establishing ground rules for lunar landings.
MSC notified Grumman that a device to recharge the portable life support system's (PLSS) batteries was no longer required in the LEM. Instead, three additional batteries would be stored in the spacecraft (bringing the total number of PLSS batteries to six).
MSC directed North American to incorporate the capability for storing a kit-type mapping and survey system into the basic Block II configuration. The actual hardware, which would be installed in the equipment bay of certain SMs (designated by MSC), would weigh up to 680 kg (1,500 lbs).
During a pad abort, propellants from the CM's reaction control system (RCS) would be dumped overboard. Structures and Mechanics Division (SMD) therefore established a test program to evaluate possible deleterious effects on the strength of the earth landing system's nylon components. SMD engineers would expose test specimens to RCS fuel (monomethyl hydrazine) and oxidizer (nitrogen tetroxide). This testing series would encompass a number of variables: the length of exposure; the time period between that exposure and the strength test; the concentration of propellant; and the rate and direction of the air flow. Testing was completed near the end of the month. SMD reported that "no significant degradation was produced by any of the test exposure conditions."
MSC defined the functional and design requirements for the tracking light on the LEM:
![]() | Apollo - Portrait of Scientist-Astronauts whose selection was announced June 29, 196 Credit: NASA. 37,368 bytes. 625 x 369 pixels. |
North American conducted acoustic tests on the spacecraft's interior, using boilerplate (BP) 14. Noise levels generated by the spacecraft's equipment exceeded specifications. Prime culprits appeared to be the suit compressor and the cabin fans. North American engineers asserted, however, that the test vehicle itself, because of its sheet metal construction, compounded the problem. These tests with BP-14, they affirmed, were not representative of conditions in flight hardware. Data on communications inside the spacecraft were inconclusive and required further analysis, but the warning alarm was sufficiently loud to be heard by the crewmen.
In November 1964, MSC asked Grumman to conduct a study on the feasibility of carrying a radioisotope power supply as part of the LEM's scientific equipment. The subsequent decision to use batteries in the LEM power system caused an additional heat load in the descent stage. Therefore, MSC requested the contractor to continue the study using the following ground rules: consider the radioisotope power supply a requirement for the purpose of preliminary design efforts on descent stage configuration; determine impact of the radioisotope power supply - in particular its effect on passive thermal control of the descent stage; and specify which characteristics would be acceptable if any existing characteristics of the radioisotope power supply had an adverse effect. The radioisotope power was used only to supply power for the descent stage.
MSC eliminated the requirement for relaying, via the LEM/CSM VHF link, transmissions from a moon-exploring astronaut to the earth. This change allowed the 279.0 megacycle (Mc) transmitters in both vehicles to be eliminated; cleared the way for a common VHF configuration; and permitted duplex voice communications between astronaut and spacecraft. For communicating with the LEM, MSC directed North American to provide a 259.7 Mc transmitter in the CSM.
MSC directed North American to include nine scientific experiments on SA 204/Airframe 012: cardiovascular reflex conditioning, bone demineralization, vestibular effects, exercise ergometer, inflight cardiac output, inflight vector cardiogram, measurement of metabolic rate during flight, inflight pulmonary functions, and synoptic terrain photography. On June 25, the last five experiments were deleted and a cytogenic blood studies experiment was added.
MSC estimated the number of navigational sightings that Apollo crewmen would have to make during a lunar landing mission:
ASPO proposed deletion of a liftoff light in the Block II CM. The Block I design provided a redundant panel light which came ON at liftoff as a part of the emergency detection system (EDS). This light gave a cue to the pilot to verify enabling of the EDS automatic abort, for which manual backup was provided. The Block II CM would incorporate improved EDS circuitry without manual backup. Deletion of the liftoff light in the CM was proposed to save weight, power, space, and reliability, and to eliminate a crew distraction during the boost phase of flight.
North American dropped boilerplate 1 twice to measure the maximum pressures the CM would generate during a high-angle water impact. These figures agreed quite well with those obtained from similar tests with a one-tenth scale model of the spacecraft, and supported data from the model on side wall and tunnel pressures.
Because the adapter panels, when deployed to 45 degrees, would block the command link with the LEM, a command antenna system on the adapter was mandatory. MSC therefore directed North American to provide such a device on the adapters for spacecraft 014, 101, and 102. This would permit command acquisition of the LEM in the interval between panel deployment and the spacecraft's clearing the adapter.
After extensive analysis, Crew Systems Division recommended that the "shirtsleeve" environment be kept in the CM. Such a design was simpler and more reliable, and promised much greater personal comfort than wearing the space suit during the entire mission.
The Atomic Energy Commission evaluated proposals by Radio Corporation of America and General Electric (GE) for an isotope generator for the Surveyor lunar roving vehicle, and assigned follow-on work to the latter firm. GE's concept, it was felt, was compatible with the possible requirement that the fuel source might have to be carried separately aboard the LEM. MSC's Propulsion and Power Division reported that the generator's "prospects . . . look(ed) very promising."
Because of continuing developmental problems, Hamilton Standard chose B. F. Goodrich to replace International Latex as subcontractor for the garment portion of the Apollo space suit.
Lawrence B. Hall, Special Assistant for Planetary Quarantine, Bioscience Programs, Office of Space Science and Applications, NASA Headquarters, listed preliminary requirements for space in the Lunar Sample Receiving Station as recommended by the Communicable Disease Center of the Public Health Service. The estimates were based on CDC experience involving the design, construction, and operation of similar biological facilities and called for net space amounting to 7,201 sq m (77,492 sq ft) for laboratories, scientific support service facilities, offices and other areas, and did not reflect requirements of the U.S. Department of Agriculture or experimenters who could justify their work being done under quarantine conditions. Hall noted that Dr. Randolph Lovelace and the Chief of CDC were in agreement that the facility should be isolated, certainly not in or near a metropolitan area, and that an island would be favored.
Structures and Mechanics Division engineers were studying several schemes for achieving the optimum weight of Block II CMs without compromising landing reliability: reducing velocity by retrorockets or "explosions" in the parachutes; controlling roll attitude to 0 degrees at impact through a "rotatable pot" structure; changing landing medium (i.e., shape hole in water and/or aeration of the water).
Crew Systems Division (CSD) engineers, continuing their evaluation of liquid-cooled garments (LCG), tested Hamilton Standard's newest version (the LCG-8). The manufacturer had modified placement of the tubes and had used a stretchable, more closely knit fabric. CSD found this style an improvement over its predecessor (the LCG-3): it was more efficient, more comfortable, and easier to don and doff. CSD officials accordingly froze the configuration of the garment around this latest model. Further design work would be minimal (chiefly interface modifications and improvements in fabrication techniques).
Grumman officials presented their findings on supercritical versus gaseous oxygen storage systems for the LEM (supercritical: state of homogeneous mixture at a certain pressure and temperature, being neither gas nor liquid). After studying factors of weight, reliability, and thermal control, as well as cost and schedule impacts, they recommended gaseous tanks in the ascent stage and a supercritical tank in the descent stage. They stressed that this configuration would be about 35.66 kg (117 lbs) lighter than an all-gaseous one. Though these spokesmen denied any schedule impact, they estimated that this approach would cost about 2 million more than the all-gaseous mode. MSC was reviewing Grumman's proposal.
During the latter part of the month, Crew Systems Division (CSD) engineers also looked into the several approaches. In contrast to Grumman, CSD calculated that, at most, an all-gaseous system would be but 4.08 kg (9 lbs) heavier than a supercritical one. CSD nonetheless recommended the former. It was felt that the heightened reliability, improved schedules, and "substantial" cost savings that accompanied the all-gaseous approach offset its slim weight disadvantage.
During late April, MSC ordered Grumman to adopt CSD's approach (gaseous systems in both stages of the vehicle). (Another factor involved in this decision was the lessened oxygen requirement that followed substitution of batteries for fuel cells in the LEM.)
Bell Aerosystems Company reported that a study had been made to determine if it were practical to significantly increase simulation time without major changes to the Lunar Landing Research Vehicle (LLRV). This study had been made after MSC personnel had expressed an interest in increased simulation time for a trainer version of the LLRV. The current LLRV was capable of about 10 minutes of flight time and two minutes of lunar simulation with the lift rockets providing one-sixth of the lift. It was concluded that lunar simulation time approaching seven minutes could be obtained by doubling the 272-kg (600-lb) peroxide load and employing the jet engine to simulate one-half of the rocket lift needed for simulation.
A major limiting factor, however, was the normal weather conditions at Houston, where such a training vehicle would be located. A study showed that in order to use a maximum peroxide load of 544 kg (1,200 lbs), the temperature could not exceed 313K (40 degrees F); and at 332K (59 degrees F) the maximum load must be limited to 465 kg (1,025 lbs) of peroxide. On the basis of existing weather records it was determined there would be enough days on which flights could be made in Houston on the basis of 544 kg (1,200 lbs) peroxide at 313K (40 degrees F), 465 kg (1,025 lbs) at 332K (59 degrees F), and 354 kg (775 lbs) at 353K (80 degrees F) to make provisions for such loads.
ASPO summarized their requirements for entry monitoring and backup reentry range control:
Glynn S. Lunney was named by MSC Director Robert R. Gilruth as Assistant Flight Director for Apollo missions 201 and 202. Lunney would continue to serve as Chief of the Flight Dynamics Branch, Flight Control Division, and as MSC Range Safety Coordinator with the U.S. Air Force Eastern Test Range.
The change from LEM fuel cells to batteries eliminated the need for a hard-line interstage umbilical for that system and the effort on a cryogenic umbilical disconnect was canceled. The entire LEM pyrotechnic effort was redefined during the program review and levels of effort and purchased parts cost were agreed upon.
MSC ordered Grumman to halt development of linear-shaped charge cutters for the LEM's interstage umbilical separation system, and to concentrate instead on redundant explosive-driven guillotines. By eliminating this parallel approach, and by capitalizing on technology already worked out by North American on the CSM umbilical cutter, this decision promised to simplify hardware development and testing. Further, it promised to effect significant schedule improvements and reductions in cost.
Part I of the Critical Design Review of the crew compartment and the docking system in the Block II CM was held at North American. Systems Engineering (SED) and Structures and Mechanics (SMD) divisions, respectively, evaluated the two areas.
Grumman ordered Space Technology Laboratories to increase the lifetime of the thrust chamber in the LEM's descent engine. This required substantial redesigning and was expected to delay the engine's qualification date about seven months.
ASPO Manager Joseph F. Shea said that the first major test of an Apollo spacecraft AFRM 009 tended to pace the CSM program and therefore had taken on a special program significance. Reflecting this significance, both MSC and North American had applied specific additional senior management and project engineering effort to that spacecraft. In the fall of 1965, Robert O. Piland, ASPO Deputy Manager, was assigned to give priority to AFRM 009 to complement and support the normal ASPO project engineering activities. North American simultaneously gave a special assignment regarding 009 to Assistant Program Manager Charles Feltz.
Recently North American had assigned a Chief Project Engineer to a full-time assignment on 009. ASPO's current management and project engineering plan for the spacecraft was: Piland would continue to give priority attention to 009, in addition to his normal duties, and would deal directly with Feltz. The ASPO Chief Project Engineer Rolf W. Lanzkron would be responsible for all ASPO project engineering activities for all spacecraft to be launched at KSC. He would give priority attention to all Block I spacecraft, ensuring schedules through adequate planning, timely decisions, and rapid referral of problems to the Deputy Manager where appropriate. Lanzkron would coordinate with North American's Chief Project Engineer, Ray Pyle, on matters pertaining to 009. Lanzkron would be supported in the Block I project engineering effort by a group headed by William Petynia.
ASPO requested the Structures and Mechanics Division (SMD) to study the problem of corrosion in the coolant loops of the CM's environmental control system, and to search for effective inhibitors. Current efforts at North American to lessen corrosion included improved hardware and operating procedures, but stopped short of extensive redesigning; and it would be some time before conclusive results could be expected. Early in May, Owen E. Maynard, chief of the Systems Engineering Division, directed SMD immediately to begin its search for inhibitors. If by July 1966 the corrosion problem remained unresolved, SMD could thus recommend stopgap measures for the early spacecraft.
MSC contacted Grumman with reference to the LEM ascent engine environmental tests at Arnold Engineering Development Center (AEDC), scheduled for cell occupancy there from May 1, 1965, until September 1, 1965. It was MSC's understanding that the tests might begin without a baffled injector. It was pointed out, however, that the first test was expected to begin July 1, and since the recent baffle injector design selection had been made, time remained for the fabrication of the injector, checkout of the unit, and shipment to AEDC for use in the first test.
Since the baffled injector represented the final hardware configuration, it was highly desirable to use the design for these tests. MSC requested that availability of the injector constrain the tests and that Grumman take necessary action to ensure compliance.
After further design studies following the M-5 mockup review (October 5-8, 1964), Grumman reconfigured the boarding ladder on the forward gear leg of the LEM. The structure was flattened, to fit closer to the strut. Two stirrup-type steps were being added to ease stepping from the top rung to the platform or "porch" in front of the hatch.
Crew Systems Division confirmed the feasibility of commonality of personal communications equipment for the entire Apollo program.
North American completed negotiations with Ling-Temco-Vought for design support on the environmental control radiators for Block II CSMs.
North American began a series of water impact tests with boilerplate 1 to obtain pressure data on the upper portions of the CM. Data on the side walls and tunnel agreed fairly well with those obtained from 1/10 scale model drops; this was not the case with pressures on the top deck, however.
Test Series I on spacecraft 001 was completed at WSTF Propulsion Systems Development Facility. Vehicle and facility updating in progress consisted of activating the gimbal subsystem and installing a baffled injector and pneumatic engine propellant valve. The individual test operations were conducted satisfactorily, and data indicated that all subsystems operated normally. Total engine firing time was 765 seconds.
Beech Aircraft Corporation stopped all end-item acceptance tests of hydrogen and oxygen tanks as a result of interim failure reports issued against three tanks undergoing tests. Failures ranged from exceeding specification tolerances and failure to meet heat leak requirements to weld failure on the H2 tank. Beech would resume testing when corrective action was established and approved by North American.
William F. Rector, the LEM Project Officer in ASPO, replied to Grumman's weight reduction study (submitted to MSC on December 15, 1964). Rector approved a number of the manufacturer's suggestions:
MSC decided upon a grid-type landing point designator for the LEM. Grumman would cooperate in the final design and would manufacture the device; MIT would ensure that the spacecraft's guidance equipment could accept data from the designator and thus change the landing point.
MSC requested that Grumman incorporate in the command list for LEMs 1, 2, and 3 the capability for turning the LEM transponder off and on by real-time radio command from the Manned Space Flight Network. Necessity for capability of radio command for turning the LEM transponder on after LEM separation resulted from ASPO's decision that the LEM and Saturn instrument unit S-band transponders would use the same transmission and reception frequencies.
![]() | Apollo LLTV - Lunar Landing Training vehicle piloted by Neil Armstrong during training Credit: NASA. 22,535 bytes. 310 x 333 pixels. |
Bell Aerosystems Company received Grumman's go-ahead to resume work on the thrust chamber of the LEM ascent engine. Bell conducted a dozen stability tests using an injector fitted with a 31.75 mm (1.25 in), Y-shaped baffle. Thus far, the design had recovered from every induced disturbance (including widely varied fuel-to-oxygen ratios). Also, to ease the thermal soakback problem, Bell planned to thicken the chamber wall.
Grumman recommended to MSC that the stroking gear pad be used on the LEM and that design effort to refine crushing performance should continue.
MSC directed Grumman to use supercritical helium only in the descent stage of the LEM; Grumman completed negotiations with AiResearch for the storage system.
Grumman reported the status of their development program on the LEM landing gear.
Space Technology Laboratories' major problems with the LEM descent engine, Grumman reported, were attaining high performance and good erosion characteristics over the entire throttling range.
Three flights were made with the Lunar Landing Research Vehicle (LLRV) for the purpose of checking the automatic systems that control the attitude of the jet engine and adjusting the throttle so the jet engine would support five-sixths of the vehicle weight.
On March 11 representatives of Flight Research Center (FRC) visited MSC to discuss future programs with Warren North and Dean Grimm of Flight Crew Support Division. A budget for operating the LLRV at FRC through fiscal year 1966 was presented. Consideration was being given to terminating the work at FRC on June 30, 1966, and moving the vehicles and equipment to MSC.
The cryoformed steel bottle for the portable life support system, manufactured by Arde-Portland, Inc., passed its first burst and cycling tests, which Crew Systems Division called a "major milestone" in its development.
H. I. Thompson Company's first combustion chamber with a tape-wrapped throat successfully withstood a series of four test firings. If further testing confirmed its performance, reported the resident Apollo office at Bethpage, N.Y., the design would be used in the LEM's ascent engine. (It would replace the current compression-molded throat, which suffered from excessive cracking.)
The thrust mount for the LEM ascent engine cracked during vibration testing. The mount would be strengthened.
During the same period, Bell tested the first one-piece ablative chamber for the ascent engine (designed to replace the molded-throat design, which developed cracks during testing . In firings that totaled over eight minutes, Bell engineers found that the unit suffered only negligible throat erosion and decay of chamber pressure.
Grumman presented to MSC its recommendations for an all-battery electrical power system for the LEM:
The first stage of the Saturn IB booster (the S-IB-1) underwent its first static firing at Huntsville, Alabama. The stage's eight uprated H-1 engines produced about 71,168-kilonewtons (1.6 million lbs) thrust. On April 23, Marshall and Rocketdyne announced that the uprated H-1 had passed qualification testing and was ready for flight.
Apollo Program Director Samuel C. Phillips told ASPO Manager Joseph F. Shea that Bellcomm, Inc., was conducting a systems engineering study of lunar landing dynamics to determine "functional compatibility of the navigation, guidance, control, crew, and landing gear systems involved in Apollo lunar landing." Phillips asked that he be advised of any specific assignments in these areas which would prove useful in support of the ASPO operation.
Shea replied, "We are currently evaluating the LEM lunar landing system with the Apollo contractors and the NASA Centers. We believe that the landing problem is being covered adequately by ourselves and these contractors." Shea added that a meeting would be held at Grumman April 21 and 22 to determine if there were any deficiencies in the program, and that he would be pleased to have Bellcomm attend the meeting and later make comments and recommendations.
MSC and Grumman reviewed the requirement for a backup mode of entering and leaving the LEM while on the moon. The new rectangular hatch was deemed "inherently highly reliable," and the only failure that was even "remotely possible" was one of the hatch mechanism. The proposal to use the top (or transfer) hatch was impractical, because it would cost 13.6 kg (30 lb) and would impose an undue hazard on both the crew and the spacecraft's thermal shield.
North American reviewed nondestructive techniques for testing honeycomb structures. The principal method involved ultrasonic testing, but this approach was highly dependent upon equipment and procedure. At best, ultrasonic testing could do no more than indicate faulty bond areas, and these could be confirmed only through destructive tests. A number of promising nondestructive methods were being investigated, but thus far none was satisfactory. The danger in this situation was that, if design allowables had to be lowered to meet the results of strength distribution tests, the weight advantage of honeycomb construction might be lost.
Following a presentation by North American on the status of the adapter, MSC spelled out specific and detailed design changes required.
North American presented final results of their modification to the electrical power system for spacecraft 011 to solve the power and energy problem. This consisted of the addition of three batteries which would be mounted on the center platform and used to supply instrumentation and mission control programmer loads during flight. These batteries would be paralleled with the entry and landing batteries at impact to provide power for postlanding recovery loads. MSC concurred with this approach.
To evaluate the Block 11 CSM's manual thrust vector control, five pilots, among them two astronauts, flew the Apollo simulator at Honeywell. These mock flights demonstrated that the manual control was sufficiently accurate for transearth injection. Also, researchers determined that the optical alignment sight provided the crewmen with attitude references adequate for midcourse maneuvers.
Rocketdyne completed qualification tests on two CM reaction control engines. These were successful. One of the nozzle extensions failed to seat, however, and was rejected. Its failure was being analyzed.
Quality verification vibration tests were completed on the command module of spacecraft 006.
A LEM/CSM interface meeting uncovered a number of design problems and referred them to the Systems Engineering Division (SED) for evaluation: the requirement for ground verification of panel deployment prior to LEM withdrawal; the requirement for panel deployment in earth orbit during the SA-206 flight; the absence of a backup to the command sequencer for jettisoning the CSM (Flight Projects Division (FPD) urged such a backup signal); and Grumman's opposition to a communications link with the LEM during withdrawal of the spacecraft (FPD felt that such a link was needed through verification of reaction control system ignition). SED's recommendations on these issues were anticipated by April 22.
Bell Aerosystems tested a pressure transducer for the LEM's ascent propulsion system (the first time such a device was ever used with hypergolic fuels). The transducer proved extremely accurate at sensing pressure differences between the propellant lines.
The MSC Crew Performance Section evaluated the ability of two pressure-suited astronauts to put on and take off their external thermal garments and portable life support systems (PLSS). The subjects had considerable difficulty positioning the PLSS; also, though these modified thermal garments were much easier to don and doff, the subjects still experienced some trouble inserting the second arm.
Goddard Space Flight Center awarded a $4.6 million contract to RCA for a deep space tracking and data acquisition system. The equipment, to be installed on Cooper's Island, Bermuda, would support a variety of NASA space missions, including Apollo flights.
George E. Mueller, Associate Administrator for Manned Space Flight, announced the transfer of control over manned space flights from Cape Kennedy, Fla., to Houston, Texas. MSC's Mission Control Center would direct the flights from end of liftoff through recovery.
Crew Systems Division (CSD) decided on a single garment for both thermal and micrometeoroid protection for Apollo astronauts. CSD's Richard S. Johnston summarized factors underlying this decision:
Systems Engineering Division (SED) reviewed the Flight Operations Directorate's recommendation for an up-data system in the LEM during manned missions. (Currently the LEM's guidance computer received data either from the computer in the CSM or from MSC.) SED concluded that, because the equipment was not essential for mission success, an up-data system did not warrant the cost and weight penalties ($750,000 and 4.54 kg (10 lbs)) that it would entail.
The Apollo Program Director, Samuel C. Phillips, informed the Associate Administrator for Manned Space Flight, George E. Mueller, that action was underway by Grumman to terminate all Pratt & Whitney LEM fuel cell activity by June 30, 1965. Pratt & Whitney would complete testing of LEM fuel cell hardware already produced and one complete LEM fuel cell module plus spare parts would be sent to MSC for in- house testing.
North American's Space and Information Systems Division would continue development at Pratt & Whitney on the CSM fuel cell for 18 months at a cost not to exceed $2.5 million, to ensure meeting the 400-hour lifetime requirement of the CSM system.
MSC would contract directly with Pratt & Whitney for CSM cell development followed by complete CSM module testing for a 1,000-hour CSM module at a cost of approximately $2.5 million. Grumman was scheduled to propose to ASPO their battery contractor selection on April 29, 1965.
MSC awarded MIT a new $15,529,000 contract to design guidance and navigation equipment for Apollo spacecraft.
Marshall Space Flight Center finalized a $2,697,546 addition to an existing contract with Douglas Aircraft Company to provide for environmental testing of a full-scale S-IVB forward stage simulator, a full-scale test instrument unit, and an Apollo thermal simulator. Testing would be conducted in Douglas' 11.89-m- (39-ft-) diameter space simulator at Huntington Beach, California, and would simulate a typical Saturn V flight from launch to earth orbit and injection into lunar path.
Construction workers emplaced the final beam in the structural skeleton of the Vertical Assembly Building at Merritt Island (KSC), Florida. Scheduled for completion in 1966, the cavernous structure (160 m (525 ft) tall and comprising 10,968,476 cu m (129 million cu ft)) would provide a controlled environment for assembling Saturn V launch vehicles and mating them to Apollo spacecraft.
ASPO informed North American that a meeting would be held at its Downey, California, plant April 20-23 to negotiate and have signed off all Block I and Block II suit interface control documents (ICDs) and the government furnished equipment ICDs. Hamilton Standard, Grumman, and David Clark were being instructed to have representation present to achieve the signed ICDs. North American was instructed to have the ICDs in final form to be signed or negotiated.
Grumman reviewed the engineering simulation program. The total cost was anticipated at $9 million.
North American began full-scale developmental testing on the CM's uprighting system.
MSC and Grumman reviewed the program for the LEM's reaction control system. The only issue outstanding was Grumman's in-house effort: MSC felt that that effort was "overestimated" and that the manufacturer alone should not handle support from subcontractors.
The first firing of the LEM ascent engine test rig (HA-3) was successfully conducted at White Sands Missile Range, New Mexico. A second firing on April 23 lasted 14.45 sec instead of 10 sec as planned. A third firing, lasting 30 sec, completed the test series. A helium pressurization system would be installed before additional testing could begin.
At North American, ultrasonic inspection of the forward portion of airframe 007 disclosed only minor imperfections in the bonding, called "a dramatic demonstration of the improvement in the bonding process."
Officials from North American and the three NASA centers most concerned (MSFC, KSC, and MSC) discussed the environmental umbilical arrangement for the CM. The current configuration hampered rapid crew egress and therefore did not meet emergency requirements. This group put forth several alternative designs, including lengthening the umbilical hood and relocating the door or hatch.
Two CSM fuel cells failed qualification testing, the first failing after 101.75 hrs of the vacuum endurance test. Pratt and Whitney Aircraft determined that the failure was caused by a cleaning fluid which contaminated and plugged the oxygen lines and contaminated the oxygen gas at the electrodes.
Owen E. Maynard, Chief of MSC's Systems Engineering Division, announced that the ordering of objectives into first, second, and third order had been discontinued and replaced with two classifications: primary and secondary objectives. Primary objectives were defined as those which were mandatory. Malfunctions of spacecraft or launch vehicle systems, ground equipment, or instrumentation which would result in failure to achieve these objectives would be cause to hold or cancel the mission until the malfunction had been eliminated. Secondary objectives were those considered desirable but not mandatory. Malfunctions resulting in failure to achieve these objectives would be cause to hold or cancel the mission as indicated in Mission Rules.
MSFC conducted the first clustered firing of the Saturn V's first stage (the S-IC). The booster's five F-1 engines burned for about 6½ seconds and produced 33,360 kilonewtons (7.5 million lbs) thrust.
Eight days later, at its static facility in Santa Susana, California, North American first fired the S-II, intermediate stage of the Saturn V. The event was chronicled as the "second major Saturn V milestone" during April.
On the basis of current systems reliabilities and the design reference mission, North American estimated at one in a hundred the possibility that returning Apollo crewmen would land on solid ground rather than on water. The contractor used this estimate in formulating test programs for boilerplate 28 and spacecraft 002A and 007.
North American halted testing on the hydrogen tanks for the CSM, produced by Beech, because of weld failures. Testing on a redesigned tank assembly began on May 8.
North American completed qualification testing on the fuel tanks for the SM's reaction control system.
North American, Hamilton Standard, Grumman, David Clark, and MSC representatives, meeting in Downey, California, resolved all interfaces between the space suit and the two blocks of spacecraft. As a result of these agreements, MSC directed North American and Grumman to make some minor changes (suggested by the Crew Systems Division) in the communications cables; to remove the portable life support systems from the CM; and to add a thermal-meteoroid garment - rather than one providing merely thermal protection - to the CM.
NASA and Boeing negotiated a contract modification. For an additional $3,135,977, Boeing would furnish instrumentation equipment and engineering support for Marshall Space Flight Center's program for dynamic testing of the Saturn V.
MSC requested Grumman to make provisions for storage of two additional portable life support system (PLSS) batteries. This was an increase of two batteries over the previous requirement; requirement now was for two batteries in the PLSS and additional storage for six.
MSC's Systems Engineering Division requested that Grumman be advised to terminate the RCA systems engineering subcontract as soon as possible. It had been determined that this contract was no longer useful. Based on data presented by Grumman during a program review, an immediate and complete termination would save about $45,000.
![]() | Apollo 4 - Early morning view of Apollo 4 unmanned spacecraft on launch pad Credit: NASA. 36,493 bytes. 360 x 471 pixels. |
At the initial design engineering inspection (DEI) of Spacecraft 009, held at Downey, California, MSC and North American officials reviewed the compatibility of the vehicle with SA-201 mission requirements. The DEI Review Board approved 11 hardware changes and assigned 26 others for further study.
The ASPO CSM Project Officer, C. L. Taylor, said that immediate action must be taken to reduce the FY 1965 expenditures on the CSM program by $5 million. Toward that end, he directed attention to a cost reduction program, "Project Squeeze," and said that a joint North American/NASA Project Squeeze had been in operation several months and had resulted in significant program reductions. However, the majority of items recommended for investigation were North American-oriented.
Taylor requested items for consideration be submitted no later than April 27, 1965, and pointed out some specifics which might be considered:
Grumman and MSC engineers discussed the effect of landing impacts on the structure of the LEM. Based on analyses of critical loading conditions, Grumman reported that the present configuration was inadequate. Several possible solutions were being studied jointly by Grumman and the Structures and Mechanics Division (SMD):
Also Grumman representatives summarized the company's study on the design of the footpads. They recommended that, rather than adopting a stroking-type design, the current rigid footpad should be modified. The modification, they said, would improve performance as much as would the stroking design, without entailing the latter's increased weight and complexity and lowered reliability. SMD was evaluating Grumman's recommendations.
MSC completed the program review on the electrical power system for the LEM and approved the cost through completion of the program (about $23.2 million).
The LEM Project Officer notified Grumman that the President's Scientific Advisory Committee (PSAC) had established sub-panels to work on specific technical areas, beyond the full PSAC briefings. One of the sub-panels was concerned with the environmental control subsystem, including space suits. This group desired representation from Hamilton Standard to discuss with regard to the LEM-ECS its interpretation of the reliability design requirements, its implementation through development and test phases, its demonstration of reliability, and its frank assessment of confidence in these measures. Briefing material should be available to the sub-panel by May 17, 1965, with a primary discussion meeting to be held at Hamilton Standard on May 24.
Allison Division of General Motors Corporation completed an analysis of failures in the LEM descent stage's propellant tanks. Investigators placed the blame on brittle forgings. MSC's Propulsion and Power Division reported that "efforts are continuing to insure (that) future forgings will be satisfactory."
Grumman was requested to attend a meeting at MSC and to present their reasons as to why the LEM reaction control system (RCS) propellant tanks could not be of common technology with the CSM RCS propellant tanks. Grumman was to also say why an additional development program was required for the LEM tanks.
After reviewing the status of the LEM landing simulation program, the Guidance and Control Division reported that "significant data" from the Bell training vehicle were more than a year away.
North American conducted the final zero-g trials (part of developmental testing on the CM's waste management system) and reported good results for both urine and feces apparatus.
North American updated the electrical power profile for spacecraft 011:
Requirement (watt-hours) | |
---|---|
Prelaunch | 159 |
Ascent | 4457 |
Entry | 1032 |
Postlanding | 2288 |
The MSC Systems Engineering Division published revisions to Apollo Mission 204A objectives and mission requirements. The principal difference between the revised version and the Initial Mission Directive for Mission 204 was the expansion of the secondary propulsion system performance objective, the radiation survey meter objective, which was deleted, and the don/doff of the Block I pressure garment and thermal blanket objectives which had also been deleted.
Crews Systems Division reported that work on the suit visors was progressing well, and that operational mockups had been sent to North American for the upcoming critical design review. The visor could be attached and detached by a pressurized crewman; also, it afforded thermal protection and allowed a complete range of light attenuation.
Grumman was requested to ship ground support equipment and associated equipment to field test sites as soon as it was available.
MSC and Grumman conducted the design engineering inspection on LEM test article 10. Structures and Mechanics Division called it "significant" that there were no requests for design changes. The vehicle was ready for shipment to Tulsa, Oklahoma, for static testing by North American, but, at the latter's request, delivery was delayed until May 28.
North American received CM 009 forward and crew compartment heatshields from Avco Corporation. These heatshields were the first CM heatshields received by the contractor with complete ablative application.
Operating on a round-the-clock schedule, researchers at Langley Research Center began simulations of high-altitude aborts and CSM-active dockings.
Using boilerplate 14, North American simulated the mission for spacecraft 009. The test was conducted in two phases, with the vehicle on external and then internal power. All data showed satisfactory performance.
Part II of the Critical Design Review of the crew compartment and docking system for the Block II CM was held at Downey, California, using mockups 28 and 27 A. (Part I had been held on March 23-24.)
North American summarized its position on the design of the CM for earth impact in a letter to MSC. A number of meetings had taken place since the NASA North American Technical Management Meeting February 25, 1964, at which the decision was made to reorient Apollo impact to water as the primary landing site.
The letter reviewed the history of boilerplate 28 drop tests and a series of MSC North American meetings during the last two months of 1964 and the first two of 1965. On February 12, at a meeting at Downey, California, North American had recommended:
At the time of the April 27 letter, North American was implementing the design changes defined in the Apollo CM design changes for water impact. The changes were based on North American's best understanding of agreements between it and MSC regarding criteria, loads, definition of the ultimate land envelope, structural analysis, and the requirement that no-leakage integrity within the ultimate load level be demonstrated by test.
LEM Project Officer W. F. Rector III, in a letter to Grumman, established the minimum acceptable NASA requirements for accomplishing the inspection, acceptance, and delivery operations at Bethpage, N.Y., on flight and major ground test vehicles.
Following manufacture, and prior to NASA acceptance, the spacecraft must undergo a thorough checkout by the contractor with MSC participating as an active member of a checkout team. Through experience in Projects Mercury and the CSM portion of Apollo, a team concept of operations had evolved for the aforementioned activities. The concept had proved highly successful in providing a balance of MSC and contractor personnel which assured that the evaluation of problems received proper attention and resulted in solutions acceptable to both NASA and the contractors. In addition, this "cross pollination" of skills provided a more complete evaluation of the spacecraft performance and systems anomalies.
Prior to starting acceptance testing, all systems should have completed a pre-installation acceptance check, been installed in the spacecraft, and the configuration verified. Acceptance checkout would begin following complete installation of all subsystems and hook-up to the Acceptance Checkout Equipment (ACE). After ACE was installed, individual subsystems tests were to be performed. The hook-up of ACE to the spacecraft would constitute the point at which the checkout team would assume responsibility for the vehicle. At that time a documentation system must provide a means for authorizing and permanently recording all work and testing to be performed on the spacecraft.
ASPO announced that a LEM Test Program Requirement Review would be held at Grumman during the first week in June. The purpose of the review would be to reach agreement with Grumman on an overall Test Program Plan and to consider planned allocation of hardware, test schedules, and test logic in relationship to flight missions.
The review would result in publication of a certification document which would define and catalog the program of testing, analysis, and rationalization which would form the basis for certification of flight spacecraft as capable of meeting requirements of flight missions. It would cover all formal qualification testing above the part level being done at subcontractors or vendors, component testing at Grumman, higher level of assembly testing conducted anywhere in support of a portion of test logic, and individual system test requirements to be conducted on integrated test vehicles such as LEM test article 1.
The format for the review would consist of individual subsystem test program reviews by the respective MSC and Grumman Subsystem Managers. MSC Subsystem Managers would be supported by RASPO, ASPO, and GE personnel where appropriate. After their initial meeting, the MSC and Grumman managers would summarize their findings to a MSC Grumman review board, emphasizing deficiencies in the program (to include inadequate tests, hardware availability problems, and schedules which were inconsistent with flight support requirements).
Joseph F. Shea, ASPO Manager, approved Crew Systems Division's recommendation to retain the "shirtsleeve" environment for the CM. The design was simpler and promised greater overall mission reliability; also, it would be more comfortable for the crewmen.
Under NASA contract, proton irradiation of primates tests were conducted on the Oak Ridge cyclotron by a team from Brooks AFB and Crew Systems Division. During this period, 136 monkeys and 900 mice were irradiated.
NASA Administrator James E. Webb, Deputy Administrator Hugh L. Dryden, and Associate Administrator Robert C. Seamans, Jr., decided that the announcement of any Apollo crew should be delayed as long as feasible without jeopardizing training schedules. They reasoned that as long as the entire astronaut group was undergoing generalized Apollo training, and until individual mission planning was complete, there should be no need to make even tentative crew selections.
Portable life support systems (PLSS) stowed against the aft bulkhead in the CM would prevent the crew couch from stroking fully. This condition would be aggravated if, at impact, the bulkhead was forced inward. North American spokesmen maintained that, in a water landing, the bulkhead would give only slightly and that the couch struts would not compress to their limits. They argued, therefore, that this condition would be of concern only in a land landing. On the contrary, said MSC. Center officials were adamant that any interference was absolutely unacceptable: it would lessen the attenuation capability of the couch (thereby jeopardizing crew safety); possibly, the bulkhead might even be ruptured (with obviously disastrous results). Because of this problem - and because the capability for extravehicular transfer from the CM to the LEM was required - MSC invited representatives from the three contractors involved to meet in Houston to deal with the question of PLSS stowage.
Grumman recommended redundant pyrotechnic or solenoid valves in the propellant system of the LEM's ascent stage. Thus the firm could meet NASA's ground rule that no single failure would cause the mission to be aborted.
The Flight Projects Division (FPD) proposed a change in the checkout procedure at Merritt Island (KSC). The idea, drawn from Gemini, would eliminate checkout at the environmental control system (ECS) facility. Basically, FPD's plan was to transport the mated CSM directly from the Operations and Checkout Building to the altitude chamber, where the ECS would be tested. Officials at North American approved the new procedure, and FPD requested the Checkout and Test Division to study its feasibility.
Grumman advised MSC that it had selected the Eagle-Picher Company as vendor for batteries in both stages of the LEM. At the same time, because a proposal by Yardney Electric Company promised a sizable weight saving, this latter firm would produce "pre-production" models for the ascent stage.
North American announced an Apollo Engineering Reorganization, designed to improve operational efficiency and to be consistent with existing requirements of the Apollo program. The reorganization would: (1) increase the number of managers, but reduce the individual manager's scope and eliminate one level of management, making for clearer assignments and better communications; (2) incorporate certain checkout and ground support equipment systems engineering functions into Systems Engineering, strengthening the integration capabilities and simplifying operational procedures; and (3) basic functions of analytical engineering within Apollo Engineering were being transferred to the Research and Engineering Division, increasing the effective use of technical and management personnel.
A tentative agreement was reached between Grumman and MSC propulsion personnel concerning the Propulsion System Development Facility's test scheduling at White Sands operations in regard to stand occupancy times relating to the ascent and descent development rigs. The tentative schedule showed that the ascent LEM Test Article (LTA)-5 vehicle would not start testing until April 1967. The PA-1 rig prototype ascent propulsion rig) would therefore be required to prove the final design and support early LEMs.
The PA-1 rig was designed and was being fabricated to accommodate small propellant tanks, and there were no plans to update it with larger ones. Therefore, advantages of flexibility, running tests of longer sustained durations, and with the final tank outlet configurations would not be realized. Grumman was requested to take immediate action to have the rig accommodate the larger tanks and install the smaller tanks by use of adapters or other methods.
As a result of the decision for an all-battery LEM, MSC advised Grumman that power for the entire pre- separation checkout of the spacecraft would be drawn from that module's batteries (instead of only during the 30 minutes prior to separation). This change simplified the electrical mating between the two spacecraft and obviated an additional battery charger in the CSM. From docking until the start of the checkout, however, the CSM would still furnish power to the LEM.
TWX, James L. Neal, MSC, to GAEC, Attn: R. S. Mullaney. April 30, 1965.
During the Month
Grumman reported two major problems with the LEM's descent engine:
North American and NASA officials conducted an engineering inspection on boilerplate 23A at White Sands Missile Range, New Mexico. The board approved four requests on minor structural changes; a fifth request, involving tolerances on the boost protective cover, was slated for further study.
R. Wayne Young was appointed Chief of the LEM Contract Engineering Branch, ASPO, to perform the functions of Project Officer for the LEM, effective May 3. At the same time M. E. Dell was appointed Chief of the G&N/ACE Contract Engineering Branch, ASPO, and would be responsible for all functions of Project Officer for the guidance and navigation, automatic checkout equipment-spacecraft, and Little Joe II systems for the Apollo spacecraft, and for technical management of the General Electric Support Contract.
Systems Engineering Division did not concur in use of the chamber technician's suit by test subjects in AFRM 008 tests. AFRM 008 represented the only integrated spacecraft test under a simulated thermal- vacuum environment and was therefore considered a significant step in man-rating the overall system. For that reason use of the flight configuration Block I suit was a firm requirement for the AFRM 008 tests.
The same rationale would be applicable to the LEM and Block II vehicle chamber tests. Only flight configured spacecraft hardware and extravehicular mobility unit garments would be used by test subjects.
Although North American was including real-time digital command equipment in Block II CSMs (as NASA had directed), the firm recommended that such equipment not be placed on Block I vehicles. North American based their contention on two factors:
Technical personnel at MSC became concerned over an RCS oxidizer tank failure that occurred in February 1965, during propellant exposure and creep tests. The failure had previously been explained as stress corrosion caused from a fingerprint on the tank shell before heat treat. NASA requested that the test be repeated under tighter controlled procedures.
NASA Associate Administrator for Manned Space Flight George E. Mueller concurred with a plan of MSC Director Robert R. Gilruth to implement a three-station developmental Solar Particle Alert Network. Mueller said he understood that Gilruth would "review the necessity for the Guaymas station, and that you will examine having all data reduction related to this network carried out under contract," and adding that he felt the program would be enhanced if arrangement could be made to involve one or more academic institutions in the analysis of data.
A preliminary flight readiness review was held in Houston on boilerplate (BP) 22. Several participants voiced serious doubts about the structural integrity of the boost protective cover, because of its sizable cutouts (required for pressure measurements and its poor fit. Structures and Mechanics Division representatives argued that the article not be modified, however. They stressed that BP-23's cover, which also fit poorly, endured greater dynamic pressures than were anticipated for BP-22. Final inspection of the cover would be made at WSMR.
A Panel Review Board (PRB) meeting was held at Office of Manned Space Flight (OMSF) in Washington and the MSC and MSFC Chairmen of the Flight Mechanics Panel attended.
Prior to the formal meeting, discussions with T. Thompson and B. Kaskey revealed that Bellcomm had recommended to Apollo Program Director Samuel C. Phillips that the contingency mission for AS 204 be an unmanned orbital flight and that no unmanned contingency mission be planned for 205. The reason for an unmanned contingency for 204 was to give MSFC an additional opportunity to obtain orbital data from the S-IVB stage.
PRB was informed that lack of specific requirements concerning contingency mission capability was hampering Flight Mechanics Panel in completion of interface control documents and associated mission development. Contingency capability was classified into two types: (1) contingency capability to provide for failures during the flight program or schedule adjustments of the hardware; and (2) in-flight contingencies due to malfunction of the launch vehicle.
![]() | Apollo 4 - Apollo 4 unmanned mission launched from Pad A, Launch Complex 39 Credit: NASA. 18,881 bytes. 377 x 416 pixels. |
MSC directed North American to provide spacecraft 012, 014, 017, and 020 with a system to monitor combustion instability in the service propulsion engine. (On April 8, officials of ASPO, Propulsion and Power Division, and the Flight Operations Directorate had agreed on the desirability of such a system.) Should vibrations become excessive, the device would automatically shut down the engine. Manual controls would enable the astronauts to lock out the automatic system and to restart the engine.
In response to a query, Apollo Program Director Samuel C. Phillips told NASA Associate Administrator for Manned Space Flight George E. Mueller that plans to use VHF communications between the CSM, LEM, and extravehicular astronauts and to use X-band radar for the CSM/LEM tracking were reviewed. Bellcomm reexamined the merits of using the Unified S-Band (USB) type which would be installed in the CSM and LEM for communication with and tracking by the earth.
It was found that no appreciable weight saving or weight penalty would result from an all USB system in the Apollo spacecraft. Also, it was determined there would be no significant advantage or disadvantage in using the system. It was noted, however, that implementation of an all S-band system at that stage of development of the design of the CSM, LEM, and astronaut equipment would incur an obvious cost and schedule penalty.
Memorandum, Phillips to Mueller, "Use of Only Unified S-Band Communication Equipment in Apollo Spacecraft," May 5, 1965.
May 6
After lengthy investigations of cost and schedule impacts, MSC directed North American to incorporate airlocks on CMs 008 and 014, 101 through 112, and 2H-1 and 2TV-1. The device would enable astronauts to conduct experiments in space without having to leave their vehicle. Initially, the standard hatches and those with airlocks were to be interchangeable on Block II spacecraft. During October, however, this concept was changed: the standard outer hatch would be structured to permit incorporation of an airlock through the use of a conversion kit (included as part of the airlock assembly); and when an airlock was installed, an interchangeable inner hatch would replace the standard one.
ASPO overruled a recommendation by the Flight Operations Directorate for an up-data link in the LEM. Although an automated means of inserting data into the spacecraft's computer was deemed "highly desirable," there were prohibitive consequences:
The Apollo earth landing system (ELS) was tested in a drop of boilerplate (BP) 19 at El Centro, Calif. The drop removed constraints on the ELS for BP-22; also, it was a "prequalification" trial of the main parachutes before the start of the full qualification test program.
Both General Electric and Radio Corporation of America studied the feasibility of using the spacecraft- LEM-adapter to dissipate heat from the radioisotope generator during initial phases of the mission. The generator would raise the temperature of the adapter about 30 degrees; radiation back to the spacecraft was not considered serious.
Structures and Mechanics Division engineers determined that the spacecraft-LEM-adapter would not survive a service propulsion system abort immediately after jettisoning of the launch escape tower. North American planned to strengthen the upper hinges and fasteners and to resize the shock attenuators on spacecraft 009.
As a result of the Critical Design Review at North American during the previous month, Crew Systems Division (CSD) directed Hamilton Standard to fabricate an Apollo space suit with a pressure-sealing zipper. CSD would compare this concept with the current gusset design, which leaked excessively and hindered donning the suit.
Launch escape system (LES) installation for CSM 009 was completed, marking the first LES completion.
ASPO reviewed Grumman's recommendation for a combination of supercritical and gaseous modes for storing oxygen in the LEM's environmental control system (ECS). MSC engineers determined that such an approach would save only about 14.96 kg (33 lbs) over a high- pressure, all-gaseous design. Mission objectives demanded only four repressurizations of the LEM's cabin. On the basis of this criterion, the weight differential was placed at less than nine pounds.
As a result of this analysis, MSC directed Grumman to design the LEM ECS with an all-gaseous oxygen storage system.
ASPO Assistant Manager William A. Lee heard a proposal to modify the LEM radar programs to reduce FY 1966 costs by $7 million. It was his understanding that the proposal would be presented to the Configuration Control Board. Lee said he at first thought the change would be "tolerable," but later felt it was a poor idea.
The major points of the proposal were:
Public Health Service (PHS) officials revealed that the Surgeon General had discussed the PHS/NASA relationships on back-contamination problems with the NASA Administrator. During this discussion, the Surgeon General proposed:
MSC instructed Grumman to negotiate award of a contract to supply batteries for the ascent and descent stages of the LEM with Eagle-Picher Company. Grumman had solicited and received proposals from Eagle-Picher and Yardney Electric Corporation. The bids, including fees, were: Eagle-Picher, $1,945,222; and Yardney, $1,101,673. Grumman evaluated the bids; made presentations to MSC personnel; and proposed on May 6 that they negotiate with Eagle-Picher for ascent and descent batteries; and with Yardney for development of a lighter ascent battery at a cost of approximately $600,000. MSC instructed Grumman not to place the proposed development contract with Yardney, stating that such work could be more appropriately done by MSC work with Yardney or other battery vendors.
Crew Systems Division let a contract to the Zaret Foundation to study effects of radiation on the lens of the human eye. The foundation would develop instruments that, by examining changes in the organ, would determine the precise dose that it had absorbed. Radiation could produce cataracts. Up to this time, however, the amount of radiation that could be absorbed safely was not known, nor could the initial damage be detected. It was generally thought that this damage was cumulative and that it was irreparable. For the crew's safety, the amount of radiation that the eye could sustain had to be known. And, of course, some technique for measuring dosages was essential.
Representatives from North American, Grumman, Hamilton Standard, and MSC discussed the problem of stowing the portable life support systems (PLSS).
Current specifications called for two PLSSs under the crew couch in the CM at launch, one of which would be brought back to earth. This location presented some serious problems, however.
MSC officials laid down several ground rules for the discussions:
During the next few weeks, MSC concluded that, at earth launch, one PLSS would be stowed in each spacecraft. With the help of Hamilton Standard engineers, North American and Grumman designers worked out a stowage volume acceptable to all concerned. Hamilton Standard agreed to repackage the PLSS accordingly. MSC ordered North American to provide for stowage of one PLSS beneath the side hatch of the CM, again stressing that the system must not interfere with the crew couch during landing impact; also, the Center directed Grumman to plan for PLSS stowage in the LEM and to study ingress and egress with the reshaped backpack. (Studies by the Crew Systems Division had already indicated that, from the standpoints of compatibility and mobility, the new shape probably would be acceptable.)
Developmental testing began on a new landing device for the CM, one using rockets (mounted on the heatshield) that would be ignited immediately before impact. The current method for ensuring the integrity of the spacecraft during a landing in rough water involved strengthening of the aft structure. The new concept, should it prove practicable, would offer a twofold advantage: first, it would lighten the CM considerably; second, it would provide an improved emergency landing capability.
MSFC informed MSC that the thrust of the H-1 engine was being uprated to 1,000 kilonewtons (205,000 lbs), thus increasing the Saturn IB's payload capability.
Samuel C. Phillips, Apollo Program Director, issued the mission directive for Apollo-Saturn 201. The mission would flight-test the Saturn IB and the Apollo CSM.
To broaden communications capabilities during near-earth phases of a mission, the S-band omnidirectional antennas on all Block II CMs were moved to the toroidal (doughnut-shaped) section of the forward heatshield.
AC Spark Plug officials presented to MSC their evaluation of bidders to design an optical rendezvous sensor for the LEM. Because three different approaches were planned, AC gained Guidance and Control Division's approval to let three subcontracts. The firms chosen were Perkin-Elmer, Hughes Aircraft, and the Itek Corporation.
Crew Systems Division (CSD) representatives contracted with Northrop Space Laboratories to study physiological effects of tailward g forces. (CSD believed these forces might be "very hazardous." Consequently, the lowest impact limits for Apollo missions were in that direction.) Northrop would study bradycardia (slow heart rate) in animals induced by such acceleration, and would apply these findings to humans. CSD hoped thereby to determine whether current limits were "ultraconservative."
North American conducted the third in a series of water impact tests on boilerplate 1 to measure pressures on forward portions of the spacecraft. Data from the series supported those from tests with one- tenth scale models of the CM. The manufacturer reported, therefore, that it planned no further full-scale testing.
North American released a preliminary report, "Apollo Reliability Modeling Documentation," in response to an action item assigned to MSC by the President's Scientific Advisory Committee (PSAC) Space Technology Panel at an Apollo program reliability briefing for the panel in January. The expected crew safety reliability was assessed at 0.973 with a confidence level of 60 percent. Functional logic diagrams indicated the amount of redundancy in each CSM function. North American noted that a direct comparison should not be made between mission AS-506 lunar orbit rendezvous (LOR) crew safety reliability and the preliminary crew safety number 0.976 for spacecraft 012. The LOR assessment, while preliminary, was developed in greater depth than the assessment for the PSAC briefing. However, a real increase in reliability was indicated from spacecraft 012 to the LOR mission because the reliability values were about equal, and the complexity and number of required functions in the LOR were far greater.
MSC informed Grumman it believed it would be beneficial to the LEM development program for MSC to participate in the manned environmental control system tests to be conducted in Grumman's Internal Environment Simulator. The following individuals were suggested to participate: Astronaut William A. Anders or an alternate to act as a test crewman for one or more manned runs; D. Owen Goons or an alternate to act as a medical monitor for the aforementioned astronaut; and John W. O'Neill or an alternate to monitor voice communications during the test and record astronaut comments.
Representatives from Motorola, RCA, Grumman, and MSC held the first design review on the S-band transponder for the LEM. Several areas were pointed out in which the equipment was deficient. Motorola was incorporating improved circuitry to ensure that the transponder met specifications.
Apollo mission A-003, a planned high-altitude abort test, was flown at WSMR. About 25 seconds after launch, and at an altitude of about three miles, the Little Joe II booster disintegrated as a result of violent - and unprogrammed - roll. The launch escape system (LES) functioned perfectly, however, and lifted the spacecraft (boilerplate 22) clear of the vehicle. ASPO Manager Joseph F. Shea, while acknowledging that A-003's "prime objectives . . . were not met," rightly observed that the LES nonetheless "proved its mettle in an actual emergency,"
To determine lunar touchdown velocity uncertainties, MIT studied radar-aided powered descent. From MIT's findings, Guidance and Control Division concluded that one or two sensors should provide velocity updates to the guidance system throughout the descent maneuver.
Engineers from General Electric and MSC's Crew Systems and Systems Engineering Divisions determined that transferring water from the CSM to the LEM involved a 5.4-kg (12-lb) increase in the latter's separation weight. Grumman had placed the penalty at only l.8 kg (4 lbs). Because the LEM's weight was so critical, the water transfer scheme was canceled.
The Resident ASPO at Grumman approved three vendor selections by the LEM manufacturer:
Marquardt Corporation completed preliminary flight rating tests on the reaction control engine for the SM.
Suborbital reentry heating experiment using the FIRE subscale Apollo capsule. An Atlas D booster propelled the instrumented probe, called a "flying thermometer," into a ballistic trajectory over 805 km (500 mi) high. After 26 minutes of flight, when the spacecraft began its descent, a solid-fueled Antares rocket accelerated its fall.
The probe entered the atmosphere at a speed of 40,877 km (25,400 mph) and generated temperatures of about 11,206K (20,000 degrees F). Data on heating were transmitted to ground stations throughout the descent. Thirty-two minutes after the launch - and but six minutes after the Antares was fired - the device impacted in the Atlantic about 8,256 km (5,130 mi) southeast of the Cape.
The Life Sciences Committee of the National Academy of Sciences' Space Science Board recommended to NASA that American astronauts returning from the moon and planets be kept in quarantine for at least three weeks to prevent possible contamination of the earth by extraterrestrial organisms,
Donald K. Slayton, Assistant Director for Flight Crew Operations, described a potential hazard involved in crew procedures inside the LEM. Two sets of umbilicals linked the Block II space suit to the environmental control system (ECS) and to the portable life support system (PLSS). Though slight, the possibility existed that when a hose was disconnected, the valve inside the suit might not seat. In that event, gas would escape from the suit. Should this occur while the LEM was depressurized, the astronaut's life would be in jeopardy. Consequently, Slayton cautioned, it would be unwise to disconnect umbilicals while in a vacuum. This in turn imposed several mission constraints:
MSC concurred in Grumman's selection of the RF tracking mode for the LEM's steerable antenna.
At Wright-Patterson AFB, North American engineers conducted zero-g tests of crew transfer using mockup 27 A. The two subjects, astronauts Donn F. Eisele and Richard F. Gordon, had difficulty manipulating the forward hatches and the drogue assembly. North American reported that handles might be required on those pieces of hardware.
ASPO pointed out to the Systems Engineering Division that planning of the manned Apollo missions had been constrained to maximize the Manned Space Flight Network support available for guidance and navigation (G&N) functions. While this was a desirable technique to maximize mission success probabilities, it led to a tendency to neglect onboard G&N capabilities.
"It is ASPO policy that, wherever feasible, both onboard and ground systems will be exercised fully during manned developmental missions. Spacecraft maneuvers should be computed both on the ground and in the flight vehicle, and the results of these computations recorded and compared. . . . It is requested that Apollo mission planning conform to this policy and that any tendency to omit full exercise of the onboard G&N capability be corrected."
MSC directed North American to install Block II-type, flush-mounted omni-directional S-band antennas on CMs 017 and 020. These antennas would survive reentry and thus would afford telemetry transmissions throughout the flight. On June 25, the Center ordered that they be installed in the toroidal (doughnut shaped) section of the aft heatshield.
MSC completed contract negotiations with Westinghouse Electric Company on gear for the LEM's television camera (cables and connectors, stowage containers, and camera mockups). Because of technical requirements, the idea of using the same cable in both spacecraft was abandoned.
Pegasus 2 was a meteoroid detection satellite. The Saturn I launch vehicle (SA-8) placed the spacecraft, protected by a boilerplate CSM (BP-26), into a 740-by-509-km (460-by-316-mi) orbit. Once in orbit, the dummy CSM was jettisoned. Pegasus 2, still attached to the second stage of the launch vehicle, then deployed its 29-m (96-ft) winglike panels. Within several hours, the device began registering meteoroid hits.
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William A. Lee, ASPO Assistant Manager, asked Systems Engineering Division to study the feasibility of an abbreviated mission, especially during the initial Apollo flights. Because of the uncertainties involved in landing, Lee emphasized, the first LEMs should have the greatest possible reserves. This could be accomplished, he suggested, by shortening stay time; removing surplus batteries and consumables; and reducing the scientific equipment. Theoretically, this would enable the LEM pilot to hover over the landing site for an additional minute; also, it would increase the velocity budgets both of the LEM's ascent stage and of the CSM. He asked that the spacecraft's specifications be changed to fly a shorter mission:
ASPO requested the Apollo Program Director to revise the LEM control weight at translunar injection as follows:
To aid reacquisition and tracking of the high-gain antenna, MSC directed North American to study the feasibility of an inertial reference system on Block II spacecraft, one that would use rate signals from the CSM's stabilization and control system. Without this system, the astronauts would have to perform anywhere from 250 to 500 antenna reacquisitions during a single lunar mission. And during sleeping periods, when the CM pilot was alone in the vehicle, it was mandatory that the antenna automatically reacquire the earth.
MSC's Crew Systems Division (CSD) received from Hamilton Standard Division a liquid cooling garment which had been modified to include a comfort liner. Preliminary tests by the contractor showed a substantial increase in comfort with only a small decrement to cooling capacity. CSD scheduled tests to validate the performance.
Because correspondence from Grumman and the Resident ASPO there hinted at deleting some equipment from the first LEM, MSC reaffirmed that LEM-1 would be an "all-up" spacecraft, as specified in the SA-206A mission requirements.
ASPO approved the use of common communications equipment in Block I and II space suits. The hardware would be procured from North American (under their contract with Pacific Plantronics), then furnished to the suit contractors (David Clark and Hamilton Standard).
ASPO Manager Joseph F. Shea reported the accomplishment of a number of important items:
Thiokol Chemical Company completed qualification testing on the tower jettison motor. An ignition delay on February 22 had necessitated a redesign of the igniter cartridge. Subsequently, Thiokol developed a modified pyrogen seal, which the firm tested during late August and early September.
Using one-third scale models, Grumman tested the LEM's antenna field at the extremes of the frequency range. Data evaluation showed that the range was adequate; errors were well within expected values.
Bell Aerosystems Company successfully cycled a LEM ascent engine propellant valve 500 times (double the specification requirement). Also, the company conducted a full-duration altitude firing with an ablative nozzle extension to verify heating characteristics.
MSC postponed the formal LEM program review (wherein spacecraft requirements would be redefined and Grumman's contract converted to an incentive type). The Center directed the company to submit firm proposals for all contract change authorizations (CCA), which were promised by July 11. Grumman was preparing a revised estimate of total program cost. In the meantime, both parties were negotiating on all outstanding CCAs.
Also, Grumman described its continuing cost reduction effort. To keep expenditures within limits "suggested" by MSC, the firm was preparing detailed budgets both for itself and its subcontractors. The company had made a number of changes to strengthen its administrative structure and, with Houston's support, was reviewing possible schedule changes with an eye toward eliminating some test vehicles.
Three flights were made with the lunar landing research vehicle (LLRV) by FRC pilot Don Mallick for the purpose of checking the initial weighing, the thrust-to-weight, and the automatic throttle systems.
General Electric would update the LLRV CF-700 jet engines at their Edwards AFB facility rather than at Lynn, Mass. The change in work location would mean an earlier delivery date and a significant cost reduction. The updating would make the engines comparable to the production engines and would add an additional 890 newtons (200 lbs) of thrust.
Using improved restraint hardware, Grumman resumed tests simulating the shock of landing on the moon. Investigators reported better lateral stability - and they no longer bounced off the floor. Astronaut Donn F. Eisele, who took part, judged the system superior to those used in earlier trials.
ASPO Manager Joseph F. Shea replied to a recommendation by the Assistant Director for Flight Operations to incorporate warning lights in Block I and II CMs to indicate failure of the gimbal actuator secondary drive motors. ASPO decided that no failure indication would be provided for the redundant drive motors in Block I spacecraft because:
ASPO advised North American that, at present, no unmanned flights were planned for the Block II CM. After the company concluded its own analysis of Apollo requirements, MSC would determine whether the heatshield must be verified prior to manned missions. But because of the long "lead time" involved, North American should continue securing the requisite instrumentation pending a final decision.
In an attempt to reduce the overall preflight time in connection with lunar landing research vehicle (LLRV) activities, a meeting was held at Flight Research Center. Principal participants were Ray White, Leroy Frost, Leonard Ferrier, Joe Walker, Don Mallick, Cal Jarvis, Jim Adkins, Zeon Zwink, Wayne Ottinger, and Gene Matranga.
The session commenced with an estimate of time required to perform each of the functions on the preflight checklist. Review indicated that preflight might be shortened in several ways:
MSC approved North American's recommendation that a programmer timer approach be used for earth reacquisition by the CSM's S-band high-gain antenna.
Northrop-Ventura began qualification testing of the earth landing system for Apollo with a drop of boilerplate 19 at El Centro, Calif. The entire landing sequence took place as planned; all parachutes performed well.
ASPO Manager Joseph F. Shea concluded, after reviewing the boilerplate 22 mission, that all the test objectives would be met satisfactorily either in the flight of spacecraft 002 or in the ground qualification program. For that reason the boilerplate 22 flight would not be repeated.
ASPO reported a number of significant activities in its Weekly Activity Report.
MSC directed NAA to make a "predesign" study of a rocket landing system for the Block II CM. (The Center had already studied the system's feasibility and had conducted full-scale drop tests.)
George E. Mueller, Associate Administrator for Manned Space Flight, approved procurement of the lunar surface experiments package (LSEP). The package, to be deployed on the moon by each LEM crew that landed there, would transmit geophysical and other scientific data back to earth. NASA's Office of Space Science and Applications would make the final selection of experiments. Mueller emphasized that the LSEP must be ready in time for the first lunar landing mission. Management responsibility for the project was assigned to MSC's Experiments Program Office.
Apollo Program Director Samuel C. Phillips approved MSC's request for revised velocity budgets for the two spacecraft. It was understood that these new values would:
North American's Rocketdyne Division began qualification testing on the CM's reaction control system engines.
MSC reviewed a lighting mockup of the crew compartment in the Block II CM. The design concept, though needing further refinement, was deemed acceptable. Engineers from Crew Systems Division found that lights on the fingertips of the suit gloves worked quite well; optimum positioning was as yet undetermined, however. At the same time, MSC reviewed the design of the Block I side hatch (i.e., not modified to meet Block II extravehicular requirements). Reviewers found North American's major problems were warpage and crew ingress from space. Further, the design of both side hatches needed "additional coordination" with that of the umbilical access arm of the launch tower to ensure compatibility.
Crew Systems Division reported that MSC had ordered Hamilton Standard to integrate seven layers of thermal protection into the A5H pressure suit.
Crew Systems Division reported that, as currently designed, the environmental control system (ECS) in the LEM would not afford adequate thermal control for an all-battery spacecraft. Grumman was investigating several methods for improving the ECS's thermal capability, and was to recommend a modified configuration for the coolant loop.
NASA hired the U.S. Navy's Air Crew Equipment Laboratory (ACEL) to study several physiological aspects of pure-oxygen environments. Primarily, ACEL's study would try to determine: (1) whether known effects (such as lung collapse) could somehow be reversed; and (2) whether such environments enhanced respiratory infections.
A list of materials that North American reported using in the CM's habitable area omitted more than 70 items that had appeared in earlier such reports. MSC ordered the company to determine why. This item could affect the course of backup toxicity testing. Materials listed as "used but not tested" were given highest priority in toxicity testing.
MSC and North American discussed the brittleness of the boost protective cover and the possibility that, during tower jettison or abort, the cover might break up and cause damage to the spacecraft. Having investigated a number of various materials and construction techniques, North American recommended adding a nylon fabric to strengthen the structure. Company engineers believed that, thus reinforced, the cover would be less likely to tear apart in flight. Even though this would increase the weight of the cover by about 27 kg (60 lbs), MSC concurred. The change applied to both Block I and Block II CMs, and was effective for spacecraft 002, 009, and all subsequent vehicles.
ASPO Manager Joseph F. Shea, in a memorandum to Robert Williams, said that, confirming their discussion with Christopher C. Kraft, Jr., and Donald K. Slayton, both had agreed that HE orbital communications in the Block II Apollo spacecraft were not needed. Shea asked Williams to look into the implications of removing the requirement.
The question of whether a data tape recorder would be installed on LEM-1 had been discussed at several Apollo 206 Mission Operations Plan meetings and there was a strong possibility it would not be installed.
In a memorandum to ASPO Manager Joseph F. Shea, Assistant Director for Flight Operations Christopher C. Kraft, Jr., pointed out that his Directorate had responsibility to ASPO of insuring "that all possible test objectives are accomplished. This is done not only by real-time conduct of the mission, but also through considerable premission planning which integrates the desired profile with the Manned Space Flight Network. The underlying purpose of all these operations activities is the accumulation of data, which for unmanned, nonrecoverable spacecraft such as LEM-1 can only be provided through the use of RE telemetry. The FOD (Flight Operations Directorate) does not believe the Apollo 206A Mission Objectives can be assured of being accomplished without the addition of a data tape recorder and associated playback transmitter. . . ."
Kraft said the tradeoff of weight and cost of a data recorder and dump transmitter versus possible loss of data for primary mission objectives, considering the cost of a Saturn IB launch vehicle, a fully functional LEM spacecraft, and the ground support required, seemed inequitable. He recommended that a data tape recorder and associated playback transmitter be installed on LEM-1 (and 2) to ensure that test objectives were achieved.
MSC ordered Grumman to propose a gaseous oxygen storage configuration for the LEM's environmental control system (ECS), including all oxygen requirements and system weights. Because no decision was yet made on simultaneous surface excursions by the crew, Grumman should design the LEM's ECS for either one-or two-man operations. And the Center further defined requirements for cabin repressurizations and replenishment of the portable life support systems. Oxygen quantities and pressures would be worked out on the basis of these ground rules.
Apollo Program Director Samuel C. Phillips listed the RE communications systems envisioned by NASA Headquarters on the first three R&D LEMs and requested ASPO Manager Joseph F. Shea's comments.
The first three LEMs (LEM-1, LEM-2, and LEM-3) would be equipped with communications equipment in addition to that required in the LEM for lunar missions to provide:
Samuel C. Phillips, Apollo Program Director, noted MSC request for support from Goddard Space Flight Center on LEM battery development as well as Goddard's agreement to furnish limited support.
Phillips suggested to ASPO Manager Joseph F. Shea that since MSFC had much experience in the design, development, and operational aspects of battery systems, it was important to use their experience and recommended MSFC be contacted if such action had not already occurred.
Using a LEM mockup at Grumman, and with the assistance of astronauts Roger B. Chaffee and Donn F. Eisele, engineers from Hamilton Standard performed mobility tests of the reconfigured portable life support system (PLSS). Crew Systems Division (CSD) reported that the reshaped back pack did not hinder entering or leaving the spacecraft; and while some interference problems were inescapable when the PLSSs were worn inside the spacecraft for any period of time, CSD believed that damage could be prevented through training and by limiting movement by the crew. Grumman, however, contended that the newer PLSSs had "serious implications" for mobility inside the LEM.
MSC Director Robert R. Gilruth appointed a Technical Working Committee, headed by Edwin Samfield, to oversee the design of a Lunar Sample Receiving Laboratory at the Center.
Independent studies were made at MSC and North American to determine effects and impact of off-loading certain Block II service propulsion system components for Saturn IB missions. The contractor was requested to determine the weight change involved and schedule and cost impact of removing one oxidizer tank, one fuel tank, one helium tank and all associated hardware (fuel and oxidizer transfer lines, propellant quantity sensors and certain gaging wire harnesses) from CSM 101 and CSM 103. The MSC study was oriented toward determining technical problems associated with such a change and the effects on spacecraft operational requirements. The North American study indicated that removing the equipment would save about 690 000, along with a weight reduction of approximately 454 kg (1,000 lbs).
In a series of meetings at Downey, Calif., MSC, Grumman, and North American worked out most of the interface between the two spacecraft. Among the most significant items yet unresolved were: the thermal environment of the LEM during boost; and the structural loads and bending modes between the docked spacecraft.
North American reported two service propulsion engine failures at AEDC and a third at WSMR. At the first location, both failures were attributed to separation of the thrust chamber from the injector assembly; in the latter instance, weld deficiencies were the culprit. Analysis of all these failures was continuing.
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At Bethpage, N.Y., officials from Grumman and the Flight Projects Division (FPD) discussed the status of LEM-1. During early May, the company had agreed to devise a comprehensive development plan for the spacecraft, one that included hardware status; manufacturing and checkout sequences; requirements for facilities, ground support equipment, and software; and projected schedules. By mid-June, Grumman was still unprepared to discuss details, however, and requested another month to work on the plan. FPD could no longer remain patient: "It is the intention of this office," the division reported to ASPO, "to conduct a monthly LEM-1 status meeting . . . until the LEM-1 program plan is clearly defined."
Structures and Mechanics Division (SMD) reported that Grumman had found two thermal problems with the LEM:
North American submitted a design proposal for a scientific airlock for the CM (applicable to 014 and all Block II spacecraft). Structural design was scheduled to begin shortly.
MSC directed Grumman to modify the LEM's pulse code modulation and timing electronics assembly to enable it to telemeter data from the abort electronics assembly (AEA). Thus, if data from the AEA disagreed with those from the spacecraft's guidance computer, the two sets could be reconciled on the ground (using inputs from the Manned Space Flight Network), relieving the astronauts of this chore.
MSC ordered North American to revise the deployment angles of the adapter panels: 45 degrees for separation, docking, and LEM withdrawal; and - at most - 60 degrees for abort separation.
The net effect of a decision by ASPO Manager Joseph F. Shea in May was that the total fuel cell effort at both Pratt and Whitney and North American should be no more than $9.7 million during FY 1966. The decision as to the distribution of the funds was left to the discretion of the fuel cell subsystem manager.
To prevent the CSM's contacting the LEM's radar antenna (a problem disclosed during docking simulations), deviations in the CSM's roll attitude would be limited to eight degrees or less.
NASA representatives briefed officials from the Atomic Energy Commission on the Apollo experiments program and discussed means of coordinating the Commission's work on a radioisotope generator to power those experiments.
Officials from Bellcomm, MSFC, and the Apollo offices in Houston and in Washington planned primary and alternate missions for the Saturn IB (applicable to SA-201 through SA-208). On July 16, the Office of Manned Space Flight specified launch vehicles (both Saturn IB and V hardware) for Apollo missions.
MSC directed Hamilton Standard Division to study the feasibility of incorporating a manual override in the current pressure relief valve. During lunar surface activity, a failed relief valve would prevent further operation of the suit.
Crew Systems Division engineers evaluated various battery combinations for the portable life support system. The division recommended a three-hr main and a one-hr backup arrangement, which would save about 9 kg (20 lbs) in the total weight of the vehicle.
Crew Systems Division began evaluating space suits for the Apollo program (submitted by Hamilton Standard, David Clark, and International Latex).
A Development Engineering Inspection (DEI) was held on spacecraft 002 at North American, Downey, California. The NASA Board consisted of W. M. Bland, Jr., Chairman; R. H. Ridnour, J. Chamberlin, S. A. Sjoberg, F. J. Bailey, O. G. Morris, O. E. Maynard, and O. Tarango.
A total of 20 Request for Changes (RFCs) were submitted and reviewed; 12 of them resulted from the design review conducted at MSC prior to the DEI, and eight resulted from the inspection of the vehicle. The final disposition of the RFCs was: seven approved for immediate action; five approved for study; three rejected; and five determined not applicable.
Crew Systems Division (CSD) conducted a series of flight tests to determine whether the cabin layout of the LEM was suitable for crew performance in zero and one-sixth g environments. Together with its report of satisfactory results, the division made several observations that it thought "appropriate":
The following definitions were specified for use in evaluating design reliability, for design tradeoff studies, and in appropriate Interface Control Documentation:
Joseph F. Shea, ASPO Manager, established as a firm mission requirement the capability to connect the space suit to the LEM's environmental system and to the portable life support system while in a vacuum. This capability was essential for operational flexibility on the moon's surface.
North American's Rocketdyne Division conducted the 1,000th test firing of the Saturn V's first-stage engine, the F-1.
NASA Headquarters established an Ad Hoc Surveyor Orbiter Utilization Committee and MSC was requested to submit names of two proposed members. It was suggested that the nominees be familiar with the mission planning and constraints of the Apollo program. The first meeting was planned for late July.
On July 29, MSC Director Robert R. Gilruth submitted the names of William A. Lee and William E. Stoney, Jr. He noted that the same two individuals were being nominated to serve as MSC members on the Apollo Site Selection Board. Gilruth expressed a desire that the meetings of the two groups could be coordinated to the extent that travel would be minimized.
MSC advised Grumman of additional functions for the computer in the LEM's abort guidance section (to be added only if a part of its memory was left over after the basic requirements were digested). These functions, in order of priority, MSC listed as:
The operational requirement for Block I and Block II CSM HE orbital communications capability was investigated. ASPO requested that appropriate contract direction and specification change notices be submitted immediately to eliminate this capability from the Block II CSM and the practicality of eliminating the HE orbital capability from the Block I CSM be investigated.
In a memorandum concerning Configuration Control Panel and Configuration Control Board actions, J. Thomas Markley, Chief of ASPO's Program Control Division, pointed out that many proposals coming before the two groups were not being adequately evaluated for program impact by the responsible subsystem or technical area manager. He said, in part, "We must keep the number of changes to a minimum and incorporate only those that are necessary to meet program objectives. We are beyond the time when we can afford the luxury design improvement changes, unless they can show substantial savings to the overall program. . . ."
MSC completed a cursory analysis of LEM landing gear load-stroke requirements at touchdown velocities of 2.43 m (8 ft) per sec vertical and 1.22 m (4 ft) per sec horizontal. This study was conducted to determine the lowest crush loads at 8-4 velocity to which the gear could be designed and still meet its landing performance requirements.
Dalmo-Victor submitted to MSC a report on modifications necessary to extend to lunar distances the operating range of the CSM's high-gain antenna. The Instrumentation and Electronic Systems Division was reviewing the report.
ASPO informed Grumman, NAA, AC Spark Plug, and MIT that effective June 21, 1965, General Electric Company, Apollo Support Department, Daytona Beach, Fla., had assumed responsibility for the preparation and conduct of all automatic checkout equipment (ACE) training for NASA and its contractors.
To satisfy conditions of its contract, General Electric would:
NASA announced negotiations with Douglas Aircraft Company for nine additional S-IVB stages to be used as the third stage of the Saturn V launch vehicle being developed at Marshall Space Flight Center. Work was to include related spares and launch support services. The S-IVB contract, presently valued at $312 million, would be increased by $150 million for the additional work.
MSC approved North American's concept for thermal control of the valves in the CM's reaction control system (essential for long-duration missions). The crew could electrically heat the valves for about ten minutes before CSM separation and before the system was pressurized, thereby forestalling possible freezing of the oxidizer when it contacted the valve.
MSC approved North American's proposed location of the antenna for the radar transponder in the CSM, as well as the transponder's coverage. This action followed a detailed review of the relative positions of the two spacecraft during those mission phases when radar tracking of the LEM was required.
NASA announced the appointment of Col. C. H. Bolender as Mission Director for the first and second Apollo/Saturn IB flights. Bolender was assigned to the Mission Operations Organization in the Office of Manned Space Flight, NASA.
Harry L. Reynolds, Assistant Manager of ASPO, said it was "becoming increasingly clear that we are going to have a difficult job keeping the LEM weight below the control weight." He said the Grumman effort was not adequate and suggested that R. Bullard of MSC be given LEM weight control as a full-time responsibility.
John H. Disher, Director of the OMSF Apollo Test Office, stressed two broad areas open to concern in the Apollo spacecraft heatshield development program:
MSC had planned to qualify the Block II heatshield by flight tests of modified Block I spacecraft 017 and 020. Some of the Block II changes could not be incorporated into modified Block I spacecraft in time to meet the current schedule and limitations of facilities would not permit full evaluation of all modifications by ground testing.
Disher suggested to Apollo Program Director Samuel C. Phillips that ASPO Manager Joseph Shea be asked to present physical descriptions of the Block I and Block II heatshields, and interim versions as applied to specific spacecraft, as well as the test plan that would ensure adequacy of heatshields to meet mission requirements. Memorandum, Disher to Phillips, "Apollo Spacecraft Heat Shield," June 28, 1965.
MSC directed North American to design the CM to store one integrated thermal meteoroid garment (TMG), rather than merely the thermal covering alone. The crewmen would carry the TMG into the LEM for use during extravehicular operations.
Systems Engineering Division chief, Owen E. Maynard, reported to the Instrumentation and Electronic Systems Division (IESD) the results of a study on a LEM communications problem (undertaken by his own group at IESD's request). During phases of powered descent to certain landing sites (those in excess of 20 degrees east or west longitude), the structure of the spacecraft would block the steerable antenna's line of sight with the earth. Communications with the ground would therefore be lost. Maynard concurred with IESD that the problem could best be solved by rotating the LEM about its thrust axis.
Owen E. Maynard, Chief of the Systems Engineering Division, vetoed a demand by the Flight Control Division for redundancy in the LEM's pulse code modulation telemetry system. Two factors determined Maynard's action:
NASA formally announced the selection of six scientist-astronauts for the Apollo program, chosen from a group nominated by America's scientific community. Qualifications and recruiting procedures had been worked out earlier by NASA and the National Academy of Sciences' Ad Hoc Committee on Scientific Qualifications of Scientist-Astronauts. To be eligible, candidates must have been born on or after August I, 1930; be citizens of the United States; be no more than 1.83 m (6 ft) tall; and have an educational level of a doctorate or the equivalent in experience. The six, only one of whom was on active military service, were Owen K. Garriott, Edward G. Gibson, Duane E. Graveline, Lt. Cdr. Joseph P. Kerwin (USN), Frank Curtis Michel, and Harrison Schmitt.
North American reported to MSC that no structural changes to the spacecraft would be required for uprating the thrust of the Saturn IB's H-1 engine from 90,718 to 92,986 kg (200,000 to 205,000 lbs). Effects on the performance of the launch escape vehicle would be negligible.
NASA launched Apollo mission PA-2, a test of the launch escape system (LES) simulating a pad abort at WSMR. All test objectives were met. The escape rocket lifted the spacecraft (boilerplate 23A) more than 1,524 m (5,000 ft) above the pad. The earth landing system functioned normally, lowering the vehicle back to earth. This flight was similar to the first pad abort test on November 7, 1963, except for the addition of canards to the LES (to orient the spacecraft blunt end forward after engine burnout) and a boost protective cover on the CM. PA-2 was the fifth of six scheduled flights to prove out the LES.
In a memorandum to T. Tarbox, John Ryken, Bell Aerosystems Company LLRV Project Manager, said he understood that Dean Grimm of MSC believed that the LLRV was not configured to have the jet engine provide simulation of a constant-lift rocket thrust in addition to providing the 5/6th g lift. Ryken forwarded to Tarbox a copy of a report, "LLRV Automatic Control System Service and Maintenance Manual," plus notes on the system in the hope that these would help him and NASA personnel better understand the system. He also included suggestions about reducing aerodynamic moments which Grimm felt might interfere with LEM simulation.
Langley Research Center put into operation its 3.5 million Lunar Landing Research Facility. The huge structure (76.2 m (250 ft) high and 121.9 m (400 ft) long) would be used to explore techniques and to forecast various problems of landing on the moon. The facility would enable a test vehicle to be operated under one-sixth g conditions.
NASA Associate Administrator for Manned Space Flight George E. Mueller told MSC Director Robert R. Gilruth he was establishing an Operations Executive Group. This group would consist of senior executives whose organizations were carrying out the manned space flight operations.
It was Mueller's objective that the group meet on a regular basis and review program status, resource requirements, management, and flight operations to provide executive management with the background needed to make effective policy decisions. A second objective was to ensure that the executives in the operations area knew each other well enough to work directly in the rapid solution of time-critical problems.
Mueller planned that one-day meetings would be held at two to four month intervals at locations that would acquaint members with facilities and equipment.
On the basis of information from the two Apollo spacecraft manufacturers, the Systems Engineering Division (SED) reported a possible thermal problem with the Saturn V during ascent:
Within its Office of Manned Space Flight, NASA organized an Apollo Site Selection Board. As an advisory body to the Associate Administrator for Manned Space Flight, George E. Mueller, the group would recommend landing sites for Apollo.
Grumman completed its study of oxygen storage systems for the LEM and reviewed with MSC the company's recommendation (one 20,684-kilonewton per sq m (3,000 psi) tank in the descent stage, two 6,894-kilonewtons per sq m (1,000 psi) tanks in the ascent stage). One drawback to the design, which the Crew Systems Division termed an "apparently unavoidable bad feature," was that, by the time of the final cabin repressurization, the repressurization time would increase to about 12 minutes (though this was admittedly a conservative estimate). Although requesting more data from Grumman on temperatures and cabin pressures, the Center approved the configuration.
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The Development Engineering Inspection (DEI) for Little Joe II 12-51-3 was satisfactorily conducted at General Dynamics Convair, San Diego, Calif. The vehicle had been assigned for Mission A-004, an abort mission in the power-on tumbling boundary region. The DEI was conducted with emphasis on changes which had been effected as a result of the malfunction encountered during the A-003 mission. The following served on the DEI Board: J. A. Chamberlin, Chairman, S. A. Sjoberg, R. F. Gordon, F. J. Bailey, R. C. Duncan, W. M. Bland, R. A. Gardiner, and L. P. Gallagher, Secretary.
ASPO Manager Joseph F. Shea ordered Crew Systems Division to develop some type of protective devices that the astronauts might use to shield their eyes during a solar flare. ASPO regarded the risk of cataracts during these solar events as extraordinarily high. Although not mandatory, it was desirable that the crew could still see while wearing the devices. Should a flare occur while the crew manned the LEM, mission ground rules called for an abort back to the safety of the CSM; therefore, such devices would be needed for the CM alone.
The NASA Director of Bioscience Programs pointed out that the National Academy of Sciences' report on back contamination placed emphasis on the potential hazard from the moon because of the short stay on the moon. From this report, it was evident that NASA had problems which must be solved in the very near future.
It was recommended that NASA accept the operational responsibility for back contamination and that there be a clear-cut assignment soon.
It was felt that failure of NASA to establish adequate authority to handle this problem and thus to satisfy the public, the press, the scientific community, and other regulatory agencies could result in direct control of back contamination by those agencies and cause unnecessary constraints upon the manned lunar and planetary missions.
The Weekly Activity Report for the period indicated that
Illustrative of continuing design and managerial problems, MSC and North American representatives attempted to resolve thermal problems with the Block II environmental control system (ECS), primarily the ECS radiator. The week-long talks were fruitless. MSC's arguments and supportive evidence notwithstanding, the contractor steadfastly opposed the water-glycol approach, favoring a nonfreezing liquid (Freon). MSC, similarly, was hardly satisfied with North American's intransigence and less so with the company's effort and performance. "A pertinent observation," reported Crew Systems Division, "is that . . . it will be extremely difficult to complete any other development in support of Block II schedules unless their (North American's) attitude is changed."
Langley Research Center completed CSM active docking simulations and lunar orbital docking runs.
At a design review on the VHF radio equipment for the LEM, conducted by RCA, Grumman refused to vote its approval. Grumman's most serious objection centered on thermal loads, which under extreme conditions could far exceed specification limits. RCA thereupon began exploring several approaches, including new materials, relocation of components, and redesigned heat sinks. Grumman was asked to keep MSC well informed on problems, corrective actions, and anticipated impacts.
During the period the NASA/Department of the Army agreement for use of Army helicopters to airlift LEM adapters was signed by both parties; the Apollo Block II space suit preliminary design review was successfully held by David Clark Company; and evaluation testing of the Apollo Block II space suits submitted by David Clark Company, Hamilton Standard Division and International Latex was completed, with data being reduced.
An RCS oxidizer tank failed during a test to demonstrate propellant compatibility with titanium tanks. This was the first of seven tanks to fail from a group of ten tanks put into test to investigate a failure that occurred during February 1965. These results caused an intensive investigation to be undertaken.
Joseph F. Shea, ASPO Manager, informed Flight Crew Operations that the capability had been firmly established for connecting and disconnecting the suit oxygen umbilicals in a vacuum. Crew Systems Division was modifying the connector (using a two-position release) to satisfy this requirement. This change would ensure safe umbilical operation while in an unpressurized spacecraft.
A Little Joe II failure investigation presentation was made at MSC July 13 in which General Dynamics/ Convair (GD/C) and MSC's Engineering and Development (E&D) Directorate presented results of independent failure investigations of the mishap which occurred during Apollo Mission A-003 (Boilerplate 22) on June 22, 1965, at WSMR.
The GD/C investigation results were presented by J. B. Hurt, Little Joe II Program Manager, in the form of flight movies and a slide talk. The data made the following points:
Crew Systems Division (CSD) completed its study on the feasibility of controlling the amount of bacteria vented from the LEM. Division researchers found that, by placing special filters in the environmental control system (ECS) of the spacecraft, emission levels could be greatly lowered. This reduction would be meaningless, however, in view of effluents from the extravehicular mobility unit (EMU) - the moon would still be contaminated by the space travelers. Because of weight penalties - and because of their dubious value - CSD recommended that bacteria filters not be added to the LEM's ECS. The Division further advised that, at present, neither the amount of bacteria emitted from the EMU nor a means of controlling this effluence was yet known.
Willis B. Foster, NASA's Director of Manned Space Science Programs, informed MSC's Maxime A. Faget that he had asked the following persons to continue to serve as members of an Ad Hoc Committee as an advisory group to Foster with regard to the design and construction of the Lunar Sample Receiving Laboratory: E. C. T. Chao (Chairman), Lorin Clark (alternate chairman), James Arnold, Clifford Frondel, Briggs Phillips, P. R. Bell, and alternates Jonathan Klein and Larry Hall.
Structures and Mechanics Division (SMD) presented meteoroid protection figures for the Apollo CSM. (During April, General Electric (GE) had developed reliability estimates for the LEM, based on revised design criteria, for the 8.3-day reference mission. The probability for mission success, GE had found, was 0.9969.) SMD'S figures were:
Block I (14-day earth orbital flight) | Block II (8.3-day lunar mission) | |
---|---|---|
CM | 0.99987 | 0.99989 |
SM | 0.9943 | 0.9941 |
All of the above figures, both GE's and SMD's, were derived from the inherent protection afforded by the spacecraft's structure. Thus no additional meteoroid shielding was needed. (Meteoroid protection would still be required, of course, during extravehicular operations.)
ASPO Manager Joseph F. Shea informed Grumman that a proposal they had made during the LEM Program Review on July 6 regarding broader qualification scheduling and parts deviations had been reviewed by NASA and it was considered "not in the best interests of the program to relax the requirements to the extent proposed by GAEC."
Shea cited a paragraph of the Contract Technical Specification which specified: "Qualification tests supporting a particular flight vehicle shall be completed prior to that vehicle being delivered from the Contractor."
It was NASA's desire that LEM program scheduling be such that all ground test logic constraints required in support of launch dates would be completed at least six weeks prior to scheduled launch dates. Shea pointed out that the LEM program schedules as presented by Grumman at the July 6 Review were not in complete accord with dates previously provided June 7 in a datafax signed by Shea.
Shea required the following delivery dates from Grumman: LEM-1, November 15, 1966; LEM-2, February 15, 1967; LEM-3, April 15, 1967; LEM-4, July 15, 1967; LEM-5, October 15, 1967; LEM-6, December 15, 1967; LEM-7, February 15, 1968; LEM-8, April 15, 1968; LEM-9, June 15, 1968; LEM-10, August 15, 1968; and LEM-11, October 15, 1968.
Grumman was requested to provide NASA, no later than August 2, 1965, their plan for support of a LEM program development schedule which would incorporate these requirements.
North American began redesigning the side hatch mechanism in the CM to satisfy the requirement for extravehicular transfer from Block II spacecraft. Two basic modifications to the Block I mechanism were required: (1) enlarging it to overcome thermal warpage; and (2) adding some hinge retention device to secure the hatch once it was opened.
MSC directed Grumman to provide stowage within the LEM for those tools needed for transfer between the two spacecraft (either intra- or extravehicular). The tool kit, similar to that in the CM, would be stored in the LEM at earth launch.
On the basis of wind tunnel tests at Arnold Engineering Development Center (AEDC), North American now considered as negligible the effects of structural protuberances on the CM's rolling moment and on propellant consumption.
North American recommended to MSC that, for the time being, the present method for landing the CM (i.e., a passive water landing) be maintained. However, on the basis of a recent feasibility study, the contractor urged that a rocket landing system be developed for possible use later on. North American said that such a system would improve mission reliability through the increase in impact capability on both land and water.
In order to use the LEM as a backup for the service propulsion system (SPS) to abort the mission during the 15-hour period following translunar injection, Grumman informed North American that some redesign of the spacecraft's helium system would likely be required. This information prompted North American designers to undertake their own analysis of the situation. On the basis of their own findings, this latter group disagreed with the LEM manufacturer.
NASA Headquarters authorized North American to subcontract the Block II CSM fuel cells to Pratt and Whitney. Estimates placed the cost at $30 million.
MSC directed Grumman to implement changes in weights of the LEM:
Total LEM | 14,515 kg (32,000 lbs) |
Ascent stage inert | 2,193 kg (4,835 lbs) |
Descent stage inert | 2,166 kg (4,775 lbs) |
North American conducted zero-g tests at Wright-Patterson AFB to evaluate the design of the CM's unitized crew couch and restraint hardware.
NASA was acquiring eight KC-135 aircraft and three ships to help maintain communications during Apollo moon flights. In addition, two ships of the existing DOD instrumentation fleet were being remodeled for support of the Apollo lunar mission's reentry phase. The KC-135 jet transports would be used during reentry to combat the effects of the plasma sheath blackout which had drowned out communications on previous manned launchings. In addition, three primary ground stations were being prepared at Goldstone, Calif.; Canberra, Australia; and Madrid, Spain.
At a LEM-1 review held at Bethpage, N.Y., Grumman briefed MSC officials on the status of design drawings and hardware procurement. Also, the company prepared a detailed schedule for manufacturing and installation of various systems on the spacecraft.
North American reported that qualification testing had been completed on two items of electrical hardware, the CSM battery charger and the pyrotechnic battery.
Bell Aerosystems Company announced that it had received additional funds from NASA (almost a half million dollars) to continue work on another lunar vehicle, the so-called Manned Flying System. This latter craft, also primarily a tool for exploration, would be able to transport an astronaut and about 136 kg (300 lbs) of equipment (or two astronauts) for distances up to 24 km (15 mi) from the original landing site.
Bell Aerosystems Company announced that it had designed a rocket-propelled Lunar Flying Vehicle (LFV) to aid Apollo astronauts in their exploration of the moon. This work was the result of a year-long study that the company had conducted for MSFC. The LFV, nicknamed "Hopper," would be able to travel about 80 km (50 mi) without stopping. Bell announced also that it had received additional funds from NASA (almost a half million dollars) to continue work on another lunar vehicle, the so-called Manned Flying System. This latter craft, also primarily a tool for exploration, would be able to transport an astronaut and about 136 kg (300 lbs) of equipment (or two astronauts) for distances up to 24 km (15 mi) from the original landing site.
Several lunar surface vehicles received national attention:
MSC officially notified Grumman that, as part of the Apollo scientific program, an experiments package would be left on the moon by the crewmen of the LEM. The Center outlined weight and storage requirements for the package, which would be stored in the descent stage of the vehicle along with the lunar geological equipment. And MSC emphasized the need for dissipating waste heat given off by the system's radioisotope generator. (The radioisotope generator was a firm requirement, despite the fear voiced by many scientists that the radiation it gave off would disrupt the experiments.)
Agreements and decisions reached at the MSC briefing on the LEM optical tracker were:
MSC and Grumman discussed the LEM landing gear design and determined the landing velocity touchdown envelope.
MSC defined for Grumman the functions that the LEM's abort guidance section (AGS) must perform during earth orbital flights:
MSC authorized North American to make a number of significant hardware changes:
At North American's drop facility, a malfunction in the release mechanism caused boilerplate 1 to impact on land rather than water. After a recurrence of this accident on August 6, a team of investigators began looking into the problem. Drops were suspended pending their findings. These incidents aggravated delays in the test program, which already was seven weeks behind schedule.
During a news conference, Kenneth S. Kleinknecht, Deputy Manager of the Gemini Project Office at MSC, affirmed that, although no firm decisions had yet been made, the concept of a circumlunar flight using a Gemini spacecraft was being seriously studied. The mission would use Titan II and III-C launch vehicles and would require rendezvousing in earth orbit. NASA, Martin-Marietta Corporation (builder of the Titan), and Aerojet-General Corporation (which manufactured upper stages for the III-C) all were studying the feasibility of such a flight. Later in the year, NASA Administrator James E. Webb eliminated the possibility of a Gemini circumlunar mission, ". . . our main reliance for operating at lunar distances . . . is the large Saturn V/Apollo system."
Failure of the Little Joe II launch vehicle on Mission A-003 and subsequent lack of positive failure cause identification and corrective action led to a lower than desirable confidence level in the capability of the controlled version of Little Joe II to accomplish the planned A-004 mission. The test objectives for A-004 were set forth.
General Electric (GE) received a supplement to its ACE-S/C (Acceptance Checkout Equipment-Spacecraft) contract. Total cost and fee for the amendment, which covered a reliability program for Apollo parts and materials, was $1,382,600. This brought the total value of GE's contract to $85.6 million.
NASA launched Pegasus 3, third of the meteoroid detection satellites, as scheduled at 8:00 a.m. EST, from Cape Kennedy. As earlier, an Apollo spacecraft (boilerplate 9) served as the payload's shroud. This flight (SA-10) marked the end of the Saturn I program, which during its seven-year lifetime had achieved 10 straight successful launches and had contributed immeasurably to American rocket technology.
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Crew Systems Division completed evaluation of the three Block II space suits submitted by Hamilton Standard, David Clark, and International Latex.
ASPO Manager Joseph F. Shea informed LEM Subsystems Managers that recent LEM schedule changes and program review activities had led to some confusion with regard to schedule requirements and policies. Shea pointed out that in some instances subsystem delivery schedules had been established which were inconsistent with the overall program. Where this had occurred, prompt action by the Subsystems Managers was required to recover lost ground. Shea then laid down specific ground rules to be followed, and requested that waivers of these ground rules be submitted no later than August 15, along with a demonstration that reasonable alternatives had been investigated. Only the ASPO Manager would approve any waivers.
Several astronauts participated in landing touchdown studies conducted in the LEM landing simulator to verify data collected in previous studies and to determine changes in controls and displays to improve the touchdown envelope. Studies involved landing runs from an altitude of 305 m (1,000 ft) with manual takeover at 213 m (700 ft), at which time the pilot could select a precise landing site.
Two change orders were issued to Grumman under the LEM contract, which brought the total estimated cost and fixed fee to $573,246,377.
At a meeting between representatives of NASA and Public Health Service representatives, it was agreed:
NASA's office at Downey, Calif., approved the contract with the Marquardt Corporation for the procurement of Block II SM reaction control system engines. Estimated cost of the fixed price contract would be $6.5 million. Marquardt was supplying the Block I SM engines.
MSC informed Grumman of package dimensions and weight restrictions for the scientific equipment and packages to be stored in the LEM.
NASA announced plans to install Apollo Unified S-Band System equipment at its Corpus Christi, Tex., tracking station. The Unified S-Band equipment included a 9-m (30-ft) diameter parabolic antenna and would enable handling of seven different types of communications with two different vehicles, the CM and the LEM. The communications would: track the spacecraft; command its operations and confirm that the command had been executed; provide two-way voice conversation with three astronauts; keep a continuous check on the astronauts' health; make continuous checks on the spacecraft and its functions; supply a continuous flow of information from the Apollo onboard experiments; and transmit television of the astronauts and the exploration of the moon.
Hamilton Standard shipped the first prototype portable life support system to Houston, where it would undergo testing by the Crew Systems Division.
Grumman reported the status of its effort to lighten the LEM. Despite some relief afforded by recent program changes (e.g., revised velocity budgets and the replacing of fuel cells with batteries), the contractor admitted that significant increases resulted as the design of the spacecraft matured. Grumman recommended, and MSC approved, a Super Weight Improvement Program (SWIP) similar to the one that the company had used in its F-111 aircraft program. By the end of the month, the company reported that SWIP had trimmed about 45 kg (100 lbs) from the ascent and about 25 kg (55 lbs) from the descent stages of the spacecraft. Grumman assured MSC that the SWIP team's attack on the complete vehicle, including its equipment, would be completed prior to the series of LEM design reviews scheduled for late in the year.
NASA named three firms, Bendix Systems Division, TRW Systems Group, and Space-General Corporation to design prototypes of the Apollo Lunar Surface Experiments Package (ALSEP). Each company received a $500,000, six-month contract. After delivery of the prototypes, MSC would select one of the three to develop the ALSEP flight hardware.
During the next 10 months, 200 employees of MSFC would be transferred to MSC to augment the Houston staff for the operational phase of the Apollo program. Completion of the first phase of the Saturn program (with the successful launch of SA-10) made it possible for Marshall to release qualified personnel to satisfy MSC's needs.
During tests of the Apollo earth landing system (ELS) at El Centro, Calif., boilerplate (BP) 6A sustained considerable damage in a drop that was to have demonstrated ELS performance during a simulated apex-forward pad abort. Oscillating severely at the time the auxiliary brake parachute was opened, the spacecraft severed two of the electrical lines that were to have released that device. Although the ELS sequence took place as planned, the still-attached brake prevented proper operation of the drogues and full inflation of the mains. As a result, BP-6A landed at a speed of about 50 fps.
The Saturn V's booster, the S-IC stage, made a "perfect" full-duration static firing by burning for the programmed 2.5 minutes at its full 33,360-kilonewton (7.5-million-lbs) thrust in a test conducted at MSFC. The test model demonstrated its steering capability on command from the blockhouse after 100 sec had elapsed; the firing consumed 2.133-million liters (537,000 gallons) of kerosene and liquid oxygen.
North American developed a plan to process NASA- and contractor-initiated design changes through a Change Control Board (CCB). Indications were that the contractor's Apollo Program Manager would implement the plan on August 19. Elevating the level of management on the CCB, together with a standard approach to processing changes, was expected to improve the technical definition and documentation of design changes. In addition, program baselines were being established to permit a more informed control of technical requirements.
Crew Systems Division (CSD) reported that changing the method for storing oxygen in the LEM (from cryogenic to gaseous) had complicated the interface between the spacecraft's environmental control system (ECS) and the portable life support system (PLSS). Very early, the maximum temperature for oxygen at the PLSS recharge station had been placed at 80 degrees. Recent analyses by Grumman disclosed that, in fact, the gas temperature might be double that figure. Oxygen supplied at 160 degrees, CSD said, would limit to 2½ hours the PLSS operating period. Modifying the PLSS, however, would revive the issue of its storage aboard both spacecraft.
Seeking some answer to this problem, CSD engineers began in-house studies of temperature changes in the spacecraft's oxygen. There was some optimism that Grumman's estimates would be proved much too high, and MSC thus far had made no changes either to the ECS or to the PLSS.
North American and MSC attended a design review at Ling-Temco-Vought on the environmental control system radiator for the Block II CSM. After reviewing design and performance analyses, the review team approved changes in testing and fabrication of test hardware.
Two Saturn milestones occurred on the same day. At Santa Susana, Calif., North American conducted the first full-duration captive firing of an S-II, second stage of the Saturn V. And at Sacramento, Douglas static-tested the first flight-model S-IVB, second stage for the Saturn IB. This latter marked the first time that a complete static test (encompassing vehicle checkout, loading, and firing) had been controlled entirely by computers.
MSC notified North American that, should one of the CM's postlanding batteries fail, the crew could lower the power requirements of the spacecraft during recovery and thus stay within the capabilities of the two remaining batteries.
ASPO forwarded to Grumman the following schedule dates which should be used for submission of detailed vehicle test plans:
AS Mission | Vehicle Test Plan | Schedule Date |
---|---|---|
206 | LEM-1 | 9-1-65 |
207 | LEM-2 | 12-1-65 |
503 | LEM-3 | 2-1-66 |
504 | LEM-4 | 5-1-66 |
505 | LEM-5 | 7-1-66 |
506 | LEM-6 | 11-1-66 |
Resident ASPO quality assurance officers at North American began investigating recent failures of titanium tanks at Bell Aerosystems. Concern about this problem had been expressed by the Apollo Test Directorate at NASA Hq in July and MSC started an investigation at that time. The eventual solution (a change in the nitrogen tetroxide specification) was contributed to by North American, Bell Aero Systems, the Boeing Company, MSFC, MSC, Langley Research Center, and a committee chaired by John Scheller of NASA Hq. The penstripe method to find cracks on the interior of the vessels was used to solve the problem. The quality assurance people viewed the failures as quite serious since Bell had already fabricated about 180 such tanks.
Samuel C. Phillips, Apollo Program Director, listed the six key checkpoints in the development of Apollo hardware:
Grumman received approval from Houston for an all-gaseous oxygen supply system in the LEM. While not suggesting any design changes, MSC desired that portable life support systems (PLSS) be recharged with the cabin pressurized. And because the oxygen pressure in the descent stage tanks might be insufficient for the final recharge, the PLSSs could be "topped off" with oxygen from one of the tanks in the vehicle's ascent stage if necessary.
MSC rejected North American's second design concept for a panel retention system in the LEM adapter. (The contractor's first proposal had drawn an unsatisfactory verdict early in June.) These successive rejections, largely on the basis of weight and vibration factors, illustrated the company's continuing difficulties with the system. MSC "suggested" to North American that it circumvent these problems by attaching the retention cable directly to the skin of the adapter.
At a third status meeting on LEM-1, Grumman put into effect "Operation Scrape," an effort to lighten that spacecraft by about 57 kg (125 lbs). "Scrape" involved an exchange of parts between LEM-1 and LTA-3. The former vehicle thus would be heavier than the latter; LTA-3, on the other hand, would have the same structural weight as LEMs 2 and forthcoming.
Owen E. Maynard, Chief of the Systems Engineering Division, asked that part of the LEM Mission Programmer, the Program Reader Assembly, be deleted. The assembly was no longer needed, Maynard said, to meet Apollo mission requirements.
The preliminary Design Engineering Inspection (DEI) for CSM 011, Mission AS-202, was held. This was a major program milestone for the mission. The review board met on August 24 and the formal DEI was conducted August 30, 31, and September 1.
The Apollo Resident Office at KSC was notified that it was ASPO Manager Joseph F. Shea's desire that a Configuration Control Panel be established and chaired at KSC to consider and process engineering changes to Apollo spacecraft and associated hardware undergoing checkout and test at KSC.
The ASPO Configuration Management Plan was being revised to reflect the action. The newly formed CCP's authority would be restricted to review of end item hardware (including ground support equipment configuration changes) to determine if the change was mandatory in the conduct of tests at KSC, and the approval of the contractor's plan for making the mandatory change to specific Apollo hardware end items at KSC.
MSC assigned two LEM test articles (numbers 10 and 2, respectively) to the SA-501 and SA-502 missions. Prior to flight, the spacecraft would be refurbished by Grumman, which would require four to five months' work on each vehicle.
Douglas Aircraft Company static-fired the S-IVB in a test at Sacramento, Calif., simulating the workload of a lunar mission. The stage was run for three minutes, shut down for half an hour, then reignited for almost six minutes.
Joseph F. Shea, ASPO Manager, summarized ground rules on the schedules for qualifying and delivering equipment for Block II spacecraft:
MSC and Apollo spacecraft contractors were in process of planning and implementing an extensive ground- based test program to certify the spacecraft for flight. All possible efforts were being made to benefit from the experience of related spacecraft programs in planning the Apollo test program. In view of the similarities of the Surveyor mission and the LEM mission, Jet Propulsion Laboratory was asked to cooperate by providing: (1) background information concerning the manner in which their qualification test program had been performed, (2) the major complete vehicle and partial vehicles used in the ground test programs, and (3) significant results obtained from such programs.
MSC requested that Grumman review the current LEM landing and docking dynamic environments to assure: (1) no loss of the abort guidance system attitude reference due to angular motion exceeding its design limit of 25 degrees per second during indicated mission phases; and (2) a mission angular acceleration environment, exceeding the gyro structural tolerances, would not be realized.
Qualification testing was completed on the LEM's helium storage tank.
Grumman advised that prelaunch heat loads on LEM-1 exceeded the capability of the spacecraft's prelaunch Freon boiler. That boiler had originally been designed for loads anticipated from fuel-celled LEMs. When batteries replaced fuel cells, MSC had recommended deleting the boiler; Grumman had urged that the item be retained on LEM-1, however, because that spacecraft would have optional equipment onboard at launch. "It appears," Crew Systems Division (CSD) reported, "that the number of items of equipment required to be on (LEM-1) at earth launch has snowballed": the boiler's maximum capability was about 900 Btus per hour; the spacecraft's heat load was estimated at something like 6,000. "GAEC is presently investigating what can be done to reduce these loads," CSD said.
North American reported that ground testing of the service propulsion engine had been concluded. Also, changing the propellant ratio of the service propulsion system had improved the engine's performance and gimbal angles and had reduced the weight of the Block II SM.
Owen E. Maynard, Chief of the Systems Engineering Division (SED), drafted a set of guidelines for Apollo developmental missions. While these guidelines pertained mostly to Block II development, and were so labeled, to some extent they dealt with Block I flights as well. These Development Mission Guidelines covered the overall mission, as well as specific phases, with one section devoted solely to the LEM. (Maynard was careful to distinguish these guidelines from "ground rules" in that, rather than being mandatory requirements, their intent was "to afford test planning a guide and somewhat of an envelope . . . and not hard and fast rules.")
SED was considering including these guidelines in the Apollo Spacecraft Master Test Plan when that document was next revised.
Several important activities were noted during the reporting period: (1) Qualification of the new reefing line cutters was progressing satisfactorily and scheduled for completion in October 1965. (The cutter had been used successfully on the last two earth landing system tests conducted at El Centro); (2) the helium storage tank for the LEM reaction control subsystem successfully passed qualification tests; and (3) the Aero Spacelines' new aircraft, "Super Guppy," made its maiden flight from Van Nuys, Calif., to Mojave Airfield, Calif. The new aircraft had the capability of airlifting the spacecraft-LEM-adapter as well as providing vital backup for the "Pregnant Guppy" aircraft.
Spacecraft 011's design engineering inspection was held at North American. The review combined structures, mission (SA-202), and ground support. The Review Board approved 55 changes (53 of which were assigned to North American).
NASA's Associate Administrator for Manned Space Flight, George E. Mueller, informed MSC's Director Robert R. Gilruth that an official emblem had been adopted for the Apollo Program, a composite based on the best proposals submitted by NASA and contractor personnel.
![]() | Apollo 4 - Atlantic Ocean, Antarctica as seen from the Apollo 4 unmanned spacecraft Credit: NASA. 5,954 bytes. 436 x 224 pixels. |
An explosion damaged a LEM reaction control system thruster being fired in an up attitude in altitude tests at MSC.
Grumman completed an analysis of radiation levels that would be encountered by the LEM-3 crew during their earth orbital mission. Grumman advised that doses would not be harmful. To lessen these levels even further, the contractor recommended that during some parts of the mission the two astronauts climb back into the CM; also, the planned orbit for the LEM (556 by 2,500 km (300 by 1,350 nm)) could be changed to avoid the worst part of the Van Allen Belt.
At an implementation meeting at MSC on the LEM's guidance and control system, Grumman again made a pitch for its concept for the landing point designator (i.e., scale markings on the vehicle's window). On September 13, the company received MSC's go-ahead. Grumman was told to coordinate closely with both MSC and MIT on the designator's design to ensure that the scale markings would be compatible with the spacecraft's computer.
A total of 13 flights were made in the LLRV, including one in which the lunar simulation mode was flown for the first time.
MSC advised officials at North American's Tulsa Division that their concept for external panel retention cables on the adapter was unacceptable. While the Tulsa people agreed with Houston's objections, because of orders from Downey they had no authority to change the design. Structures and Mechanics Division reported that North American's "continued apathy . . . to redesign the system" threatened a schedule delay.
North American conducted another in their series of impact tests with boilerplate 28. This drop tested the toroidal section of the spacecraft (heatshield and equipment bay structure) in impact at high angle and maximum horizontal velocity. The spacecraft suffered no visible damage. Some water leaked into the vehicle, but this was blamed on the boilerplate structure itself and the apex-down attitude after impact.
A LEM ascent engine exploded during altitude firings at Arnold Engineering Development Center (AEDC). In subsequent investigations, Bell Aerosystems researchers concluded that the failure probably resulted from raw propellants being accidentally forced into the engine at the end of the second run, thus damaging the injector.
Grumman advised MSC of major troubles plaguing development of the LEM's descent engine. These included problems of weight, chamber erosion, mixtures, valves, combustion instability, and throttle mechanisms (which Grumman said could delay delivery of LEM 1 and the start of qualification testing).
MSC's Flight Operations Division requested an investigation of the feasibility of performing an abort from an inoperative S-IVB booster on the AS-206 unmanned LEM mission.
MSC requested Grumman to review the following ascent and descent pressurization system components in the propulsion subsystem for materials compatibility with certain propellants:
To aid in defining abort limits for the emergency detection system, MSC authorized North American to determine the ultimate strength of the spacecraft based on failure trajectories of the Saturn IB and Saturn V vehicles.
NASA Associate Administrator for Manned Space Flight George E. Mueller summarized for Administrator James E. Webb the status of the LEM tracking systems. The LEM rendezvous radar system, which had been under development since 1963, was expected to be available when needed for flight missions. Technical studies had shown that an Optical Tracker System offered weight and reliability advantages with no reduction in LEM performance. Hughes Aircraft Company was developing an Optical Tracking System as a back-up to the rendezvous radar.
Assistant ASPO Manager William A. Lee told the General Instrumentation Branch of the Instrumentation and Electronic Systems Division Grumman was preparing a proposal for use of the LEM vehicle as an electrical ground. The plan was to adopt a single wire system selectively for those circuits not susceptible to electrical transients. Lee said Grumman estimated a weight savings of 27 kg (60 lbs) in the ascent stage and 9 kg (20 lbs) in the descent stage. The proposal was expected to be available to NASA by October 1 and Lee had committed NASA to a decision within three weeks of receipt of the plan.
William A. Lee, ASPO, pointed out to the MSC Thermo-Structures Branch that Grumman was engaged in a strenuous weight reduction effort and that, when feasible, MSC should accept the proposed changes. In the area of thermal control, Grumman was investigating the use of etched aluminum surfaces to replace thermal paint. It was expected that the change was feasible and that approximately 11 kg (24 lbs) of inert weight would be saved on each stage of the LEM. In addition, Grumman was investigating the applicability of this technique to the landing gear components.
Grumman was also studying substitution of an aluminum-mylar nonrigid outer heatshield with plastic standoffs for current rigid ascent and descent heatshields. The potential inert weight saving would be about 84 kg (185 lbs). Lee requested that Thermo-Structures Branch stay in close contact with these developments.
Northrop-Ventura canceled a parachute test because of problems with the reefing line rings and the main parachute bags. North American was looking into these problems which, it was anticipated, would affect both blocks of spacecraft.
MSC requested Grumman and North American to study the possibility of taking the guillotine that Grumman had developed for the LEM's interstage umbilical and using it as well to sever the two umbilicals linking the LEM to the adapter. In this manner, North American's effort to develop these cutters might be eliminated; LEM-adapter interface would be simplified; and a significant monetary savings could be effected without schedule impact.
Owen E. Maynard, Chief of Systems Engineering Division, advised ASPO Manager Joseph F. Shea of the major technical problems currently plaguing Apollo designers:
NASA began recruiting additional Apollo pilot-astronauts, to begin training the following summer.
Because of recent changes in the design of the space suit, Motorola, under its contract for suit communications antennas, began concentrating on the development of antennas for the back pack rather than on the helmet.
Hurricane Betsy hit the United States and Apollo Program Director Samuel C. Phillips presented an interim report to NASA Associate Administrator Robert C. Seamans, Jr., concerning the effects of the storm on NASA property and programs:
ASPO Manager Joseph F. Shea announced a new plan for controlling the weight of Apollo spacecraft. Every week, subsystem managers would report to a Weight Control Board (WCB), headed by Shea, which would rule on their proposals for meeting the target weight for their systems. Three task forces also would report to the WCB on the way to lighten the spacecraft:
At a status meeting at Grumman on LEM-1, MSC learned that, as a result of welding problems, the vehicle's ascent stage was about four weeks behind schedule.
As a result of discussions with North American and Aerojet-General, MSC ordered several changes to the service propulsion engine:
Flight Crew Support Division defined the minimum time required to assure adequate crew training in the Apollo Mission Simulators. Individual part task training in the simulators required 36 hrs for each of six astronauts (prime and backup crews), a total of 216 hrs; each of the two crews would require 40 hrs of crew mission task training, 120 hrs of crew specific mission training, and nine hrs each of crew integrated mission (with ground crews) training, a total of 169 hrs per crew or a total of 338 hrs.
It was estimated that the simulator would be operational on an average of 30 hours a week, based on experience in other programs. Thus, eight months of simulator availability would be required prior to the AS-204 launch date - one month of training verification plus 29 weeks for crew training.
The needed dates for simulators were: Apollo Mission Simulator No. 1, fully operational January 15, 1966, with spacecraft 012 modification kit delivery complete on March 18, 1966; Apollo Mission Simulator No. 2 delivery in 012 configuration April 15, 1966, to be fully operational June 6, 1966.
Systems Engineering Division (SED) reported that, on the basis of data from SA-4, 8, and 9 flights, the thermal coating of the spacecraft suffered considerable damage. This degradation was caused by the S-IV retro motor and/or the tower jettison motor. SED advised that a thorough analysis was scheduled shortly at TRW to look into the entire area of thermal factors and the performance of ablative coating. However, North American refused to acknowledge the existence of any such thermal problem, SED said. The firm's "continued inactivity" was described as a "major obstacle" to solving the problem.
Grumman established the final design parameters for the landing gear of the LEM (both primary and secondary struts). It was anticipated that this newer design would be between 9 and 14 kg (20 and 30 lbs) lighter than the earlier gear.
North American and its subcontractor, LTV, conducted a design review on the environmental control system radiator for the Block II CSM. Both parties agreed upon a backup effort (i.e., a narrower selective stagnation panel), which would be more responsive to thermal changes in the spacecraft. Testing of this backup design could follow that of the prototype and still meet the design release.
North American evaluated the compatibility of spacecraft 012 with its mission, AS-204, the first manned Apollo flight. The manufacturer determined that, by using roll-stabilized attitude during most of the flight, the vehicle could remain aloft for about 13½ days. The only onboard expendables termed marginal were cryogenics and the propellant supply in the SM's reaction control system (which, for added safety, would offer a redundant means of braking the vehicle out of orbit).
The Assistant Chief for Electronic Systems notified ASPO that the proposed Grumman plan to repackage the LEM pulse command modulated and timing electronic assembly (PCMTEA) had been discussed and investigated and that the Instrumentation and Electronic Systems Division (IESD) concurred with the proposal.
Following is the impact to the PCMTEA as a result of Grumman's proposed changes:
MSC's Assistant Director for Flight Operations, Christopher C. Kraft, Jr., told ASPO Manager Joseph F. Shea that postlanding operational procedures require that recovery force personnel have the capability of gaining access into the interior of the CM through the main crew hatch. This was necessary, he said, so recovery force swimmers could provide immediate aid to the crew, if required, and for normal postlanding operations by recovery engineers such as spacecraft shutdown, crew removal, data retrieval, etc.
Kraft said the crew compartment heatshield might char upon reentry in such a manner as to make it difficult to distinguish the outline of the main egress hatch. This potential problem and the necessity of applying a force outward to free the hatch might demand use of a "crow bar" tool to chip the ablator and apply a prying force on the hatch.
Since this would be a special tool, it would have to be distributed to recovery forces on a worldwide basis or be carried aboard the spacecraft. Kraft requested that the tool be mounted onboard the spacecraft in a manner to be readily accessible. He requested that the design incorporate a method to preclude loss of the tool - either by designing the tool to float or by attaching it to the spacecraft by a lanyard.
A design review on the attitude controller for the LEM was held at Honeywell. Flight Crew Support Division reported that the device seemed "highly optimized functionally, operationally, and weight wise."
NASA and the Atomic Energy Commission (AEC) agreed that AEC would provide radioisotope thermoelectric generators which would power each Apollo Lunar Surface Experiments Package for an operating period of one year on the lunar surface.
The basic structure of Apollo CM simulator "A," around which a full-scale mockup of the CM crew stations would be built, was delivered to MSC. Flight Crew Support Division would use the mockup for crew familiarization, procedures training, and equipment evaluation.
MSC's Director, Robert R. Gilruth, sent a detailed history of actions taken in regard to development of the Apollo Extravehicular Mobility Unit, and recommended three changes not consistent with the overall procurement plan previously approved by NASA Headquarters:
On the basis of studies by both MSC and Grumman on LEM landing criteria, Engineering and Development Directorate determined that contractor and customer alike favored reducing landing velocity requirements for the spacecraft. The two did not see eye to eye on how far these requirements should be reduced, however, and MSC would study the problem further.
ASPO Manager Joseph F. Shea decided that no device to indicate a failure of the secondary gimbal motor in the service propulsion system (SPS) was necessary on Block I spacecraft. Two factors shaped Shea's decision:
North American proposed an additional pane of glass for the windows on Block II CMs. Currently, both blocks of spacecraft had one pane. Should meteoroids pit this pane, the window could fail during reentry at lunar velocities. The meteoroid protection group in Structures and Mechanics Division were evaluating North American's proposal, which would add about 10.43 kg (23 lbs) to the vehicle's weight. No such added protection was required on Block I spacecraft.
The Critical Design Review (CDR) of the LEM, tentatively planned during the week of September 27, 1965, at Grumman, was rescheduled as a series of reviews beginning in November 1965 and ending in January 1966. The schedule was to apply with five teams participating as follows: Structures and Propulsion, November 8-11, Team Captain: H. Byington; Communications, Instrumentation, and Electrical Power, December 6-9, Team Captain: W. Speier; Stabilization and Control, Navigation and Guidance, and Radar, January 10-13, Team Captain: A. Cohen; Crew Systems, January 10-13, Team Captain: J. Loftus; and Mission Compatibility and Operations, January 24-27, Team Captain: R. Battey.
North American evaluated the CSM's communications capability with the unified S-band system using attitude data published with the AS-501 (spacecraft 017) preliminary reference trajectory. The trajectory selected to achieve the desired entry conditions had a maximum altitude at apogee of about 16,668 km (9,000 nm). At this altitude, the maximum range to a Manned Spacecraft Flight Network (MSFN) station was about 20,372 km (11,000 nmi). Since a high-gain antenna was not installed on spacecraft 017, communications depended on the S-band omnidirectional antennas. In order to verify their adequacy, directions to the MSFN stations were computed and system circuit margins were derived. North American concluded that the margins were inadequate to support high-bit-rate telemetry for about three hours of the mission. Modification of the planned CSM attitude produced significant improvement (about 17 decibels) in communications. The contractor also proposed a relocation of range ships to improve performance.
![]() | Apollo 4 - Apollo spacecraft 017 is hoisted aboard U.S.S. Bennington Credit: NASA. 40,566 bytes. 394 x 469 pixels. |
Officials from the U.S. Public Health Service (PHS) and the Department of Agriculture met at MSC to discuss informally the problem of back contamination. They listened to briefings on the mission profile for Apollo; reentry heating rates; present thinking at the Center on the design of the Lunar Sample Receiving Station (LSRS); and MSC's plans (none) for quarantining the astronauts.
James Goddard, Assistant Surgeon General in PHS, presented three broad areas of concern:
On October 15, Lawrence B. Hall, Planetary Quarantine Officer in NASA's Office of Space Science and Applications, summarized for Deputy Administrator Hugh L. Dryden the September 27 meeting, and recommended that such informal discussions continue. "I believe," he told Dryden, "that . . . the Manned Spacecraft Center is more fully aware of the point of view of the regulatory agencies on this matter. Unfortunately, the regulatory agencies still do not understand the reasons for the Manned Spacecraft Center's reluctance to face this problem."
NASA's Administrator James E. Webb, Deputy Administrator Hugh L. Dryden, and Associate Administrator Robert C. Seamans, Jr., selected Ling-Temco-Vought from a total of 17 proposers for contract negotiations for a one-year cost-plus-award-fee contract with options to extend for two one-year periods, to provide operational laboratory support services for the Apollo spacecraft program at the White Sands (N. Mex.) Test Facility. The selection was based upon the presentation of a source evaluation board and comments of key officials concerned. The Associate Administrator for Manned Space Flight was asked to issue appropriate instructions to ensure that the contract negotiating team follow the negotiation objectives as presented to them.
MSC directed Grumman to draw up a complete list of all nonmetallic materials used in the habitable area of the LEM, including type, use, location, weight, and source of all such materials.
Representatives from MSC, David Clark, Hamilton Standard, and Westinghouse met at North American, where they negotiated and signed most of the interface control documents (ICD) for the space suit and associated equipment. Of the ICD's yet unresolved, only two involved problems that could have a significant effect on hardware design:
Ralph S. Sawyer, Chief of the Instrumentation and Electronic Systems Division, advised ASPO Manager Shea of current problems with antennas for the Apollo spacecraft:
The Mission Operations Organization had been under continued review and discussion and on September 29 and 30 in New Orleans, La., a meeting was held between George E. Mueller, James C. Elms, Robert R. Gilruth, and George M. Low. General agreement was reached on a method of operation: The Mission Operations Director would represent the Associate Administrator for Manned Space Flight in all operational areas and would be responsible to the Associate Administrator for Manned Space Flight for the execution of all NASA manned spaceflight missions.
The people responsive to the Missions Operations Director (in the same sense as Center Program Managers are responsible to Headquarters Program Directors) are:
It was agreed that a better definition of responsibility between Program Office and Mission Operations Directorate in OMSF was required. It was also agreed that for all flight operational areas MSC would prefer to have the Assistant Director for Flight Operations act as its single point of contact. The Assistant Director for Flight Operations would represent Flight Crew Operations and Medical Operations in the mission operations area.
The Critical Design Review (CDR) of the Block II CSM was scheduled to be conducted in November and December 1965, with the first phase being held November 15-18, and the second phase December 13-17.
The first phase activity would be a review of drawings, schematics, procurement specifications, weight status, interface control drawings, failure analysis, proposed specification change notices, and specification waivers and deviations. The second phase of the review would be a physical inspection of the mockup of the Block II CSM.
The review would be conducted by review teams organized in the several areas and headed by team captains, as follows: Structures and Propulsion, O. Ohlsson; Communications, Instrumentation, and Electrical Power, W. Speier; Stabilization and Control, Guidance and Navigation, A. Cohen; Crew Systems, J. Loftus; and Mission Compatibility and Operations, R. Battey.
Apollo Program Director Samuel C. Phillips issued the flight directive for the AS-202 mission, which spelled out the general flight plan, objectives, and configuration of both spacecraft and launch vehicle.
Bell Aerosystems reported on stability and ablative compatibility testing of the first bipropellant-cooled injector baffle for the ascent engine of the LEM. Combustion was stable; however, streaking on the injector face forced Bell to halt ablative testing after only 60 seconds of operation.
Crew Systems Division defined the survival equipment that MSC would procure for Apollo spacecraft. Fifteen survival sets would be needed for Block I and 30 for Block II CMs.
Thirteen flights were made with the lunar landing research vehicle. Two of those flights were devoted to mulling the lunar simulation system; the remaining 11 flights were devoted to research with the attitude control system in the rate command mode. Nine landings were made in the lunar simulation mode.
On flight 1-34-94F the lunar simulation mode worked perfectly and no drift was encountered during more than one minute of hovering flight. The landing was made in the simulation mode for the first time on this flight.
Flight Projects Division advised that, on the basis of current weight studies, the aft heatshield on Block I CMs must be thinned. North American had said that this change would not affect schedules, but felt some concern about the heat sensors. Accordingly, Structures and Mechanics Division (SMD) ordered North American to proceed with this weight reduction on the hardware for spacecraft 011, 012, and 014 (but ensuring that the orbital decay required for Block I manned missions would still be met). The sensors on 011's heatshield would be adapted to the new thickness. SMD anticipated that these changes would cost about $500,000 and would probably delay by about four weeks delivery of the 011 heatshield from Avco.
Pressure loading and thermal tests were completed on the types of windows in the Block I CM. The pressure tests demonstrated their ability to withstand the ultimate stresses (both inward and outward) that the CM might encounter during an atmospheric abort. The thermal simulations qualified the windows for maximum temperatures anticipated during reentry at lunar velocities.
MSC informed Grumman that the Center had awarded a contract to AC Electronics for the development of an optical tracking system for the LEM (as a possible alternative to the rendezvous radar). Until MSC reached a final decision on which mode to use, Grumman should continue building the LEM to accept either of these navigational devices. Flight Crew Operations Directorate requested the decision be deferred pending evaluation of an operational paper.
Homer E. Newell, Associate Administrator for Space Science and Applications, notified Houston of the first two experiments selected for early Apollo landing flights:
At a Customer Acceptance Readiness Review at North American, NASA formally accepted spacecraft 002. The vehicle was then demated and shipped to White Sands.
In the absence of a firm requirement, and because of limited utility, reported Robert C. Duncan, Chief of the Guidance and Control Division, the horizon photometer and star tracker were being deleted from the primary guidance system in Block I CSMs. (Block II guidance systems would still contain the devices.)
The U.S. Geological Survey cooperated with Crew Systems Division (CSD) in testing the extravehicular mobility unit under simulated lunar conditions at Flagstaff, Arizona. As a result, CSD technicians determined a number of deficiencies in the thermal meteoroid garment, and recommended a number of changes to make the garment more functional and more durable, as well as better fitting and more comfortable.
MSC ordered Grumman to halt work on both linear-shaped charges and gas-driven guillotines as a method for severing the LEM's interstage umbilical. Instead, the contractor should use two mild-detonation guillotines or one dual-blade device.
As a result of a design meeting on September 2, MSC ordered North American to make a number of detailed hardware changes in the CM uprighting system for Block I spacecraft.
ASPO Manager Joseph F. Shea recommended to Apollo Program Manager Samuel C. Phillips that experiment M-5A (Bioassays Body Fluids) not be incorporated on mission AS-204, based on schedule impact resulting from structural modifications necessary to support the Urine Volume Measuring System. Redesign and rework of existing spacecraft hardware would have a schedule impact of two to four weeks.
MSC requested that Grumman study the feasibility of a "fire-till- touchdown" landing procedure for the LEM. Grumman was to investigate especially performance factors surrounding crushing of the descent engine skirt, or possibly jettisoning the skirt, and was to recommend hardware modifications required for this landing mode.
The Instrumentation and Electronic Systems Division (IESD) proposed that the LEM's inflight VHF antenna might be used as a link to astronauts on the surface of the moon as well. (LEM communications had to provide VHF contact with the crew outside the spacecraft at ranges up to three nautical miles. The VHF antenna, however, had been designed only for the flight portions of the mission, and to meet this communications requirement another antenna was being added to the LEM at a cost of between 1.36 and 2.26 kg (3 and 5 lbs).) IESD offered to study the coverage and range of the inflight antenna while on the lunar surface, and suggested that the three-mile range requirement might be relaxed. The additional VHF antenna might thereby be obviated.
Also, IESD attended a preliminary design review at Autonetics on the signal conditioning equipment (SCE) for the Block II CSM. IESD concurred in several modifications to the Block I design (adding a redundant power supply; hermetic sealing of equipment; and repackaging to fit the equipment bay in Block II CMs). These changes reduced the SCE's weight from 22 to 19 kg (47.5 to 41 lbs) and, because of more efficient power supply, lowered its power consumption from 65 to 35 watts. North American was studying ways of perhaps lightening the SCE even further.
MSC's Reliability and Quality Assurance Division reported in August that, because beryllium would corrode in the humid environment of the spacecraft's cabin, the metal thus posed a toxicological hazard to the crew of the CM. During subsequent meetings with the Health and Physics Group, and Guidance and Control and Structures and Mechanics Divisions, it was agreed that, because of crew safety, beryllium surfaces in the guidance and control system must be coated to protect the metal from the humid atmosphere inside the cabin of the spacecraft.
Crew Systems Division (CSD) established vibration limits for the crew of the LEM. This action followed the final LEM vibration test with human subjects at Wright-Patterson AFB and a review of the test program by CSD and Grumman engineers.
Also, in what CSD described as "the start of a long range program for familiarizing Apollo suit technicians with field and launch operations," the Division reported that it had sent an Apollo suit technician to Cape Kennedy to take part in the forthcoming Gemini VI mission.
A drop in the boilerplate 6A series, using flight-qualifiable earth landing system (ELS) components, failed because the braking parachute (not a part of the ELS) did not adequately stabilize the vehicle. MSC invited North American and Northrop-Ventura to Houston to explain the failure and to recommend corrective measures.
A test model of the Lunar Landing Research Vehicle, designed to simulate lunar landings, was flown by former NASA X-15 pilot Joseph Walker to an altitude of 91 m (300 ft). Built by Bell Aerosystems Company under contract to NASA, the research craft had a jet engine that supported five-sixths of its weight. The pilot manipulated solid-fuel lift rockets that supported the remaining one-sixth, and the craft's attitude was controlled with jets of hydrogen peroxide.
On August 26, the attachments for the pilot parachute mortar had failed during static testing on CM 006. The fittings had been redesigned and the test was not repeated. This test, the final one in the limit load series for the earth landing system, certified the structural interface between the CM and the earth landing system for the 009 flight.
To ensure compatibility with the spacecraft, MSC specified weight and storage details for the extravehicular visors. The devices, two of which would be carried on each mission and transferred from the CM to the LEM, would afford impact, thermal, and ultraviolet protection for the crew during operations in space or on the lunar surface.
NASA was negotiating with General Electric Company to provide 56-watt isotopic power generators for the Apollo Lunar Surface Experiment Packages. The Atomic Energy Commission would manage detailed design and development of the unit based on MSC studies of prototypes.
NASA announced that it had selected Lockheed Electronics Company of Houston, Texas, to provide broad data-handling support at MSC. Negotiations on the contract (valued at more than $3 million) began shortly thereafter.
Owen E. Maynard, Systems Engineering Division chief, summarized for ASPO Manager Joseph F. Shea the recovery requirements for Apollo spacecraft. The CM must float in a stable, apex-up attitude, and all of the vehicle's recovery aids (uprighting system, communications, etc.) must be operable for 48 hrs after landing. In any water landing within 40 degrees north or south latitude, the Landing and Recovery Division had determined, the crew either would be rescued or recovery personnel would be in the water with the CM within this 48-hr period. Thereafter, Maynard said, the spacecraft had but to remain afloat until a recovery ship arrived - at most, five days.
To solve the problem of controlling bacteria in the LEM's waste management system (WMS), Crew Systems Division (CSD) recommended some type of passive control rather than periodically adding a germicide to the system. CSD described two such passive techniques, both of which relied on chemicals upstream from the WMS (i.e., in the urine collection device in the space suit). MSC began studying the feasibility of this approach, and ordered Grumman also to evaluate passive control in the contractor's own investigation of the bacteriological problem.
MSC ordered Grumman to discontinue use of zinc and cadmium on all production LEMs. This action followed performance studies by the Reliability and Quality Assurance Division that showed a deleterious effect of space environments upon these metals.
A meeting was held at Flight Research Center to discuss several items relating to the Lunar Landing Research Vehicle (LLRV) and Lunar Landing Training Vehicle (LLTV). Attending were Dean Grimm, Robert Hutchins, Warren North, and Joseph Algranti of MSC; Robert Brown, John Ryken, and Ron Decrevel of Bell Aerosystems Company; and Gene Matranga, Wayne Ottinger, and Arlene Johnson of Flight Research Center.
The discussions centered around MSC's needs for two LLRVs and two LLTVs and the critical nature of the proposed schedules; alternatives of assembling a second LLRV ; clarifying the elements of the work statement; and preliminary talks about writing specifications for the LLTV.
From a schedule standpoint, it was decided that both LLRVs would be delivered to MSC on September 1, 1966. MSC planned to check out and fly the second LLRV (which needed additional systems checkout) with their crew and pilot on a noninterference basis with LLRV No. 1, the primary training vehicle.
The MSC Mission Constraints Control Panel (MCCP) held its initial meeting. The panel's function was to resolve all conflicts between launch vehicle, spacecraft, and operational constraints. Also, once the preliminary reference trajectory was issued, the MCCP must approve all constraint changes. These would then be included in the mission requirements.
To save weight, Crew Systems Division was studying the feasibility of using three one-man liferafts and a composite set of survival gear in Block I CMs.
![]() | Apollo 5 - Mating of Lunar Module-1 with Spacecraft Lunar Module Adapter-7 Credit: NASA. 48,204 bytes. 399 x 472 pixels. |
To support studies on equipment stowage, North American agreed to maintain mockups of the crew compartments in the two blocks of CMs. The contractor's effort would be geared for the first manned flight for each series of vehicles (spacecraft 012 and 101).
MSC announced that the bubble-type helmet, designed by Crew Systems Division (CSD) engineers Robert L. Jones and James O'Kane, had been adopted for use in the Apollo extravehicular mobility unit. The new helmet was smaller and lighter than earlier types; extensive studies by CSD had demonstrated its superior comfort, visibility, and don/doff characteristics.
To enable MSC's Mission Control Center (MCC) to handle Apollo flights, MSC announced that NASA's contract with IBM for computer systems would be extended. For an additional $80 million, IBM would convert the MCC to newer equipment and would use more advanced support techniques. The contract would contain provisions for conversion to an incentive fee type.
Samuel C. Phillips, Apollo Program Director, notified the Center directors and Apollo program managers in Houston, Huntsville, and Cape Kennedy that OMSF's launch schedule for Apollo-Saturn IB flights had been revised, based on delivery of CSMs 009 and 011:
North American completed static structural tests on the forward heatshield for the Block I CM (part of the certification test network for airframes 009, 011, and 012), thus demonstrating the heatshield's structural integrity when jettisoned (at the start of the earth landing system sequence).
NASA announced that it had selected 10 areas on the moon as subjects for Lunar Orbiter's cameras during 1966. These areas encompassed most major types of lunar terrain. Most were suitable - and potential - landing sites for Surveyor and Apollo spacecraft.
While delivering Apollo SM 009, the Pregnant Guppy aircraft was delayed at Ellington Air Force Base, Texas, for three-and-a-half days while waiting for an engine change. In view of the delay of the SM, the incident was reviewed during the succeeding weeks, and Aero Spacelines was requested to place spare engines not only at Houston, but also at other strategic locations on the normal air route from Long Beach, Calif., to KSC.
MSC authorized North American to modify the Block II CSM design to provide for installation of a luminous beacon compatible with the LEM tracking system. The CSM beacon could replace the rendezvous radar and transponder.
At a meeting with Grumman, MSC agreed with the contractor's basic design of the LEM's descent-stage base heatshield and its installation and access. MSC asked Grumman to demonstrate accessibility, installation, and removal of the heatshield on the M-4 mockup.
Owen E. Maynard, Systems Engineering Division chief, advised his branch managers of the U.S. Public Health Service's (PHS) growing concern that Apollo spacecraft and crews might bring organisms back from the moon. PHS feared that such organisms would be "capable of multiplying in the earth environment and (that) precautionary measures must be undertaken to prevent global exposure." Therefore, Maynard told his group, PHS believed that the CM, its environment, and its crew must not be allowed to contact the earth's environment. Maynard further advised that efforts were already underway to define the design of an isolation facility, and isolation facilities for the recovery ships were being contemplated.
As a result of this strong stand by PHS, Maynard said, "It appears that ASPO will soon be requested to show what spacecraft measures are being taken to assure that the CM environment will not be exposed to the earth atmosphere. The spacecraft," Maynard told his group - who already knew as much - "has not been designed to preclude CM environment exposure." Actually, much the opposite had long been assumed to be part of normal operating procedures. Maynard therefore ordered subsystem managers to review their individual systems to determine:
Seven flights were made with the Lunar Landing Research Vehicle at Flight Research Center during October. The first three were in support of X-15 conference activities, and the last four were for attitude control research. Five of the landings were made in the lunar simulation mode.
MSC's Engineering and Development Directorate established the Lunar Sample Receiving Laboratory Office as an interim organizational element pending development of a permanent organization for operation of the laboratory.
Bell Aerosystems Company reported that the LEM ascent engine bipropellant cooled injector baffle met all basic specification requirements, including those for combustion efficiency, ablative compatibility, and stability. Bell conducted a successful firing with an engine that had previously been vibrated to simulate launch boost and lunar descent. The contractor also completed a duty cycle firing at AEDC with hardware conditions set to the maximum temperatures believed attainable during a lunar mission.
The design of the Block I space suit helmet ear cup and attachment was finalized. Based on evaluation of AFRM 007 acoustic test data, it was determined that existing Gemini-type "soft" ear cups were adequate for Block I flights. North American and David Clark Company specifications would be changed to reflect revised requirements. The majority of drawings for the suit had been reviewed and approved by MSC's Crew Systems Division. Remaining to be resolved and approved were selection of helmet visor material, installation of helmet microphones and earphones, communications harness, and fingertip glove lighting systems.
MSC management gave Grumman the go-ahead to implement the LEM Certification Test Plan effective October 25.
In a letter to the Director of Flight Research Center, MSC Director Robert R. Gilruth said that recent Lunar Landing Research Vehicle LLRV flight results and problems with the handling qualities of the LEM had focused high interest on the LLRV activities at FRC.
Gilruth concurred with the recent decision to assemble the second LLRV and said MSC planned to support the assembly and checkout of the second vehicle with engineering and contractor personnel assigned to the Flight Crew Operations Directorate.
Gilruth expressed appreciation for the effort expended by FRC in initiating a three-month study contract with Bell Aerosystems to provide drawings for a follow-on vehicle and indicated MSC planned to contract for Lunar Landing Training Vehicles in June 1966.
MSC's Configuration Control Board approved the reduction of maximum translunar flight time from 110 hrs to 100 hrs.
NASA announced that it would negotiate with International Latex Corporation for an estimated $10 million contract to fabricate the Apollo space suit consisting of the liquid-cooled undergarment, constant wear garment, pressure garment assembly, and thermo-micrometeoroid protective overgarment. At the same time an estimated $20 million contract was negotiated with Hamilton Standard Division of United Aircraft Corporation for continued development and manufacture of the portable life support system with a four-hour main power supply subjected to a maximum stowage soak temperature of 328K (130 degrees F).
The development mission planning panel met to discuss the general constraints for missions AS-206 and AS-207. AS-206 spacecraft and operational constraints and mission rules were checked for compatibility. An investigation of the AS-207 preliminary mission profile showed that the ascent power requirements far exceeded the capacity of the ascent stage batteries. A modification to the mission profile was developed which would enable the mission objectives to be accomplished within the LEM battery capabilities. A tentative procedure for negotiating MSFC launch vehicle constraints was established between MSC and MSFC.
Upon examination of the airlock gas connectors at the Portable Life Support System Emergency Oxygen System Preliminary Design Review, ASPO representatives discovered a possible catastrophic failure. If an astronaut unhooked the PLSS supply umbilical before the exhaust line was disconnected the suit would vent through the PLSS. A request for change was rejected by the preliminary design review board in spite of this situation. ASPO recommended to the Crew Systems Division that the connectors be modified or that the problem be solved another way to preserve crew safety.
North American conducted an Apollo Program Review for key subcontractors to convey the current status of the program and to discuss the subcontractors' specific participation and support to the program.
A North American layout of the volume swept by the CM couch and crewmen during landing impact attenuation showed several areas where the couch and or crewmen struck the CM structure or stowed equipment. One area of such interference was that the center crewman's helmet could overlap about four inches into the volume occupied by the portable life support system (PLSS) stowed beneath the side access hatch. The PLSS stowage was recently changed to this position at North American's recommendation because the original stowage position on the aft bulkhead interfered with the couch attenuation envelope. The contractor was directed by MSC to explain this situation.
The Block I service propulsion system engine successfully completed the first altitude qualification tests at AEDC.
A manned lunar mission metabolic profile test was run in the Hamilton Standard Division altitude chamber using the development liquid-cooled portable life support system (PLSS). The system was started at a chamber altitude of over 60,906 m (200,000 ft), and the subject adjusted the liquid bypass valve to accommodate the programmed metabolic rates which were achieved by use of a treadmill. Oxygen was supplied from an external source through the PLSS bottle and oxygen regulation system. This procedure was used because bottle qualification was not complete, so pressure was limited to 2,068 kilonewtons per sq m (300 psig). An external battery was used for power because the new batteries that were required by the change to the all-battery LEM were not yet available. The thermal transport system including the porous plate sublimator was completely self-contained in the PLSS. All systems operated within specification requirements and the test was considered an unqualified success.
MSC directed Ryan Aeronautical Corporation to present to RCA and Grumman areas in which weight could be saved on the LEM landing radar. Of specific interest was the power supply and the possibility of its overdesign.
The portable life support system Preliminary Design Review was completed. The design was essentially complete and no major discrepancies were noted during the review.
MSC and Grumman representatives reviewed Grumman's timeline analysis for the intravehicular LEM crew activities subsequent to lunar landing. This timeline was being rewritten for a test program to be conducted to determine what crew mobility problems existed within the LEM so that they could be better evaluated at the Certification Design Review.
MSC instructed North American to:
The manned portion of the coast and maneuver simulation program was completed, evaluating man-in-the-loop capabilities and their effects upon maneuver accuracy, maneuver time, and propellant consumption. The maneuvers and pilot techniques satisfied the midcourse attitude and translation control requirements for the Block I Spacecraft 012 manned mission. The study was conducted in eight phases, including more than 950 runs. Preliminary analysis of the results indicated there was compatibility between the pilots and the maneuver control equipment.
Little Joe II Program Manager Milton A. Silveira suggested to ASPO Manager Joseph F. Shea that if the next Little Joe II flight test was successful there would be no further requirement for the Little Joe II to support the Apollo program. Silveira said planning had been made with General Dynamics Convair to store the remaining three vehicles, parts, and tooling for one year in case a new requirement from ASPO or NASA should develop. The additional cost of one-year storage compared to normal program closeout was estimated to be small. ASPO concurred with the suggestion on December 1.
Christopher C. Kraft, Jr., MSC's Assistant Director for Flight Operations, outlined results of recent studies of the problems associated with lunar landing. The programs studied were Surveyor, Lunar Orbiter, deployment of probes on a simulated manned lunar landing mission, deployment of probes during lunar orbit on an unmanned mission, and deployment of landing aids during the manned lunar landing mission.
The studies supported the conclusion that it was still desirable to have an earth launch window of several days to give launch opportunity flexibility. For this purpose, it would be necessary to have a group of longitudinally spaced landing areas available. However, if there were a particular advantage, such as site certification, in being limited to one area and, consequently, one launch opportunity per month, this was considered to be acceptable. At least one launch opportunity per month would be required. Therefore, the certified area would have to be within the area available from performance consideration. This might mean a night launch, which was confirmed as feasible.
Although the manned lunar landing mission ought not to depend upon a successful Surveyor program, information for Apollo as well as general scientific information should be expected from the program. The concept was not supported that probes were a necessary prerequisite to a lunar landing nor was the idea of a separate probe mission approved. If the Surveyor program failed to provide evidence of the suitability of at least one area and if the consensus favored gathering additional information from probes, the feasibility of carrying probes on the actual lunar landing mission should be fully considered, together with the development of aids to real-time assessment.
North American informed MSC of a fire in the reaction control system (RCS) test cell during a CM RCS test for spacecraft 009. The fire was suspected to have been caused by overheating the test cell when the 10 engines were activated, approximately 30 sec prior to test completion. An estimated test delay of two to three weeks, due to shutdown of the test cell for refurbishment, was forecast. MSC informed the Apollo Program Director that an investigation was underway.
MSC notified Grumman that all electrically actuated explosive devices on the LEM would be fired by the Apollo standard initiator. This would be a common usage item with the CSM and would be the single wire configuration developed by NASA and provided as Government-furnished equipment.
Grumman was directed by MSC to provide for the disposition and bacteriological control of the LEM urine containers by off-loading all containers to the lunar surface immediately prior to LEM ascent, locating them so their physical integrity would be assured during ascent stage launch. Incorporation of an appropriate germicide in all LEM urine containers would effectively sterilize the internal part of the container and the contained urine.
Ordnance separation tests on the first three spacecraft-LEM-adapters (SLA) in a series of four were completed at North American's Tulsa facility. The tests successfully demonstrated the deployment of the SLA's forward panels in preparation for the first spacecraft orbital flight.
Usage of a multiple gas connector (MGC) with the extravehicular mobility unit (two per suit) was deleted. Instead of the MGC, a separate inlet and outlet suit umbilical gas connector manufactured by Airlock, Inc., would be used (two inlets and two outlets per suit). This design change applied to all Block II space suits, environmental control systems, and portable life support systems. Hamilton Standard was directed to implement the change by means of a negotiated revision of a supplemental agreement to its contract.
Grumman completed negotiations with Thompson-Ramo-Wooldridge for the LEM abort guidance system.
A series of tests were run to determine the cause of stress corrosion of the reaction control system titanium tanks. Results showed that tanks exposed to chemically pure nitrogen tetroxide (N2O4) oxidizer suffered stress corrosion cracking, but tanks exposed to N2O4 containing small amounts of nitric oxide did not fail. The qualification testing program would soon resume.
Ten flights were made with the lunar landing research vehicle. All flights were for attitude control and handling qualities research. Landings on all flights were made in the lunar landing mode.
Apollo Mission Simulator No. 1 was shipped from Link Group, General Precision, Binghamton, New York, to MSC.
NASA had essentially completed negotiations with North American on the incentive contract. Based on agreements reached with the contractor during negotiations, Master Development Schedule 9 was published, which included Block I and Block II spacecraft schedules, SLA schedules, SM Block II primary structure schedules, and a tabulated list of milestones containing former and new schedule dates.
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Maj. Gen. Samuel C. Phillips, NASA Apollo Program Director, approved the deletion of the LEM TM-5 from the ground test program.
MSC was considering the use of both water and air bacteria filters in the LEM to reduce contamination of the lunar surface. Crew Systems Division (CSD) would attempt to determine by tests what percentage concentration of micro-organisms would be trapped by the filters. CSD hoped to begin limited testing in January 1966.
At an MSC meeting attended by ASPO, CSD, and Lunar Sample Receiving Laboratory representatives, it was decided that the following directions would be sent to Grumman:
The Flight Readiness Review for Mission A-004 was conducted at White Sands Test Facility. The board concurred in proceeding with launch preparations. Subsequent to the review, the failure analysis of the autopilot subsystem revealed loose solder connections, and the launch was rescheduled for December 15, from the original December 8 planned launch. The launch was later scheduled for December 18; then, because of continued problems with the autopilot, was scrubbed until January.
Hamilton Standard successfully tested a life-support back pack designed to meet requirements of the lunar surface suit. The system functioned as planned for more than three hours inside a vacuum chamber, while the test subject walked on a treadmill to simulate the metabolic load of an astronaut on the lunar terrain. The 29.48-kg (65-lb) portable life support system supplied oxygen, pressurized to a minimum 25,510 newtons per sq m (3.7 lbs psi), controlled its temperature and relative humidity, and circulated it through the suit and helmet. The pack pumped cooled water through the tubing of the undergarment for cooling inside the pressure suit. A canister of lithium hydroxide trapped carbon dioxide and other air contaminants to purify the oxygen for reuse.
George E. Mueller, NASA Associate Administrator for Manned Space Flight, notified MSC Director Robert R. Gilruth that NASA Administrator James E. Webb and Associate Administrator Robert C. Seamans, Jr., had selected Lockheed Aircraft Corporation, The Martin Company, McDonnell Aircraft Corporation, and Northrop Corporation for Phase I of the Apollo Experiments Pallet Procurement. The contracts would be for four months and each would be valued at about $375,000.
The Block II CSM Critical Design Review (CDR) was held at North American, Downey, Calif. The specifications and drawings were reviewed and the CSM mockup inspected. Review Item Dispositions were written against the design where it failed to meet the requirements.
As a result of the CDR North American would update the configuration of mockup 27A for use in zero-g flights at Wright-Patterson AFB. The flights could not be rescheduled until MSC approved the refurbished mockup as being representative of the spacecraft configuration.
ASPO Manager Joseph F. Shea informed North American, Grumman, and Bell Aerosystems Company that NASA's Associate Administrator for Manned Space Flight, George E. Mueller, had requested a presentation on the incompatibility of titanium alloys and nitrogen tetroxide and its impact on the Apollo Program, this to be done at the NASA Senior Management Council meeting on December 21.
In light of recent failures of almost all titanium tanks planned for use in the Apollo Program when exposed to nitrogen tetroxide under conditions which might be encountered in flight, the matter was deemed to be of utmost urgency.
A preliminary meeting was scheduled at NASA Headquarters on December 16 and one responsible representative from each of the prime contractors and subcontractors was requested to be present. Prior to the December 16 meeting, it would be necessary for each organization to complete the following tasks:
MSC's Deputy Director George M. Low told Willis B. Foster of NASA Headquarters that the standing committee appointed by him had performed an invaluable service to the Center in identifying the requirements to be incorporated in the Lunar Sample Receiving Laboratory. Low said, "Additionally, we are indebted to individual members of that committee for providing detailed specialized inputs during the preliminary engineering phase just ended."
Low noted that the committee had prepared a report, "Review of the Preliminary Engineering Report (PER) of the Lunar Sample Receiving Laboratory (LSRL) by the Standing Committee of LSRL." He said that an examination of this report revealed that the committee had addressed itself to a detailed review task which far exceeded the scope envisioned when Foster conceived the idea for such a committee.
Low suggested that the committee be "discharged of any further responsibility relating to the facility design and construction." He added that MSC would look forward to providing Foster and his staff, as well as interested outside scientists, periodic briefings and reports of status and progress on the facility.
An 889-kilonewton (200,000-lb) thrust J-2 engine was captive-fired for 388 sec on a new test stand at MSFC. The J-2 engine would be used to power the Saturn S-IVB stage for the Saturn V. Ten tests of the liquid hydrogen-liquid oxygen powered rocket engine had been conducted at MSFC since the J-2 engine test facility was put into use in August 1965.
The service propulsion system burn time for AS-502 was confirmed to be 385 sec flight time. Previously the plan had called for a total of 515 sec - 310 sec for SPS-1 and 205 sec for SPS-2. This action required that all mission plans be restudied and revised.
Nine review item dispositions were submitted at the Block II critical design review concerning the earth landing system and shock attenuation system (struts). Six were on specifications, one on installation drawings, and two on capability. The two most significant were:
Preliminary results of the "fire-till-touchdown" study by Grumman indicated that this maneuver was not feasible. The engine might be exploded by driving the shock wave into the nozzles.
Investigations were continuing of the best alternative for resolving the AS-502 mission incompatibilities. The incompatibilities resulted from the restriction of the usable life of the Block I service propulsion system (SPS) engine to 385 to 400 sec total burn time. The alternatives were:
The Block II Apollo food stowage problems were explored at North American. Methods of restraint were resolved to allow accessibility of the man-meal assemblies. The contractor, Melpar, Inc., would rework and reposition mockup man-meal assemblies to conform with suggestions by the Crew Provisions Office of the MSC Apollo Support Office and North American representatives.
At-sea operational qualification tests, using boilerplate 29 to simulate spacecraft 009, were completed. All mechanical system components performed satisfactorily, except for the recovery flashing light.
Grumman was invited to provide NASA with a cost-plus-incentive-fee proposal to provide four LEMs subsequent to LEM-11, with the proposal due at MSC by the close of business on the following day. The proposal should be based on a vehicular configuration similar to LEM-11 in all respects, including supporting activities, contractual provisions, and specifications applicable to LEM-11. The required shipment dates for the four vehicles would be December 13, 1968, February 11, 1969, April 11, 1969, and June 10, 1969, respectively.
NASA Associate Administrator for Space Science and Applications Homer E. Newell informed MSC that an experiment proposed by Ames Research Center had been selected as a space science investigation for, if possible, the first manned lunar landing as a part of the Apollo Lunar Surface Experiments Package. Principal investigator of the proposed experiment, the magnetometer, was C. P. Sonett of Ames with Jerry Modisette of MSC as associate.
The Apollo Program Director was being requested by Newell to authorize the funding of flight hardware for this experiment.
CSM ultimate static testing began. A failure occurred at 140 percent of the limit load test which simulated the end of the first-stage Saturn V boost.
The following responsibilities were transferred from MIT to AC Electronics:
Apollo Program Director Samuel C. Phillips said the Apollo Weight and Performance management system, jointly developed by the Apollo Program Office and the Centers had proved itself as a useful management tool. He considered that the system had matured to the point that changes in organizational responsibility were needed. He set a target date of December 31, 1965, to complete the following actions:
Phillips told ASPO Manager Joseph F. Shea that if he wished to continue to use GE's service in this area, he would support his request with the stipulation that GE's prediction analysis operation be supervised by MSC personnel.
A working group was formed at MSC to determine the effects of lunar soil properties on LEM landing performance. Various potential sources of lunar surface information, including Surveyor spacecraft, would be investigated in an effort to evaluate LEM landing performance in a lunar soil. The effect of footpad size and shape on landing performance in soil would also be studied.
The requirement to use the LEM rendezvous radar for surface or skin track and for tracking in the cooperative mode during powered LEM mission phases was deleted from the Grumman Technical Specification and the Master End Item Specification.
The NASA Director of Mission Operations notified the Directors of MSC, MSFC, and KSC that the communication satellite operational capability for Apollo mission support was scheduled for September 30, 1966.
The MSC Systems Development Branch rejected a proposal that the Development Flight Instrumentation (DFI) on LEM-3 be deleted for the following reasons:
Apollo Program Director Samuel C. Phillips informed J. L. Atwood, President of North American Aviation, Inc., that he and the team working with him in examining the Apollo Spacecraft and S-II stage programs had completed their task "in sufficient detail . . . to formulate reasonably accurate assessment of the current situation concerning these two programs." Phillips and a task force had started this study at North American November 22, 1965.
Phillips added: "I am definitely not satisfied with the progress and outlook of either program and am convinced that the right actions now can result in substantial improvement of position in both programs in the relatively near future.
"Inclosed are ten copies of the notes which we compiled on the basis of our visits. They include details not discussed in our briefing and are provided for your consideration and use.
"The conclusions expressed in our briefing and notes are critical. Even with due consideration of hopeful signs, I could not find a substantive basis for confidence in future performance. I believe that a task group drawn from NAA at large could rather quickly verify the substance of our conclusions, and might be useful to you in setting the course for improvements.
"The gravity of the situation compels me to ask that you let me know, by the end of January if possible, the actions you propose to take. . . ."
Robert C. Duncan, Chief of MSC's Guidance and Control Division, revealed that recent discussions between himself, NASA Associate Administrator for Manned Space Flight George E. Mueller, and ASPO Manager Joseph F. Shea had resulted in a decision to continue both radar and optical tracking systems into the hardware development phase. It was also agreed that some specific analytical and hardware homework must be done. The hardware action items were being assigned to Robert A. Gardiner and the analytical action items to Donald C. Cheatham.
The primary objective was to design, develop, and produce rendezvous sensor hardware that was on time and would work, Duncan said; second, that "we must have a rendezvous strategy which takes best advantage of the capability of the rendezvous sensor (whichever type it might be)."
The greatest difficulty in reducing operating laboratory equipment into operating spacecraft hardware occurred in the process of packaging and testing for flight. This milestone had not been reached in either the radar or the optical tracker programs.
Duncan said, "We want to set up a 'rendezvous sensor olympics' at some appropriate stage . . . when we have flight-weight equipment available from both the radar contractor and the optical tracker contractor. This olympics should consist of exposing the hardware to critical environmental tests, particularly vibration and thermal-cycling, and to operate the equipment after such exposure." If one or the other equipment failed to survive the test, it would be clear which program would be continued and which would be canceled. "If both successfully pass the olympics, the system which will be chosen will be based largely upon the results of the analytical effort. . . . If both systems fail the olympics, it is clear we have lots of work to do," Duncan said.
Robert C. Seamans, Jr., was sworn in as Deputy Administrator of NASA, succeeding Hugh L. Dryden who died December 2. Seamans would also retain his present position as Associate Administrator for an indefinite period of time.
NASA Administrator James E. Webb administered the oath of office. He had announced in Austin, Tex., on December 10, that President Lyndon B. Johnson had accepted his recommendation that Seamans be named to the number two NASA post.
Grumman and MSC reached agreement to continue with Freon for prelaunch cooling of LEM-1. By changing to a different Freon the additional heat sink capability was obtained with minor changes to flight hardware. The ground support equipment for supplying Freon had to be modified to increase the flow capability, but this was not expected to be difficult. Plans were to use the same prelaunch cooling capability for LEM-2 and LEM-3.
A potential problem still existed with the boost environment for the LEM and the associated spacecraft-LEM-adapter (SLA) thermal coating. Systems Engineering Division authorized North American to proceed with implementation of an SLA thermal coating to meet the currently understood SLA requirements. Grumman would review the North American study in detail for possible adverse impact on the LEM and would negotiate with MSC.
As a result of joint efforts by the Resident ASPO and MSFC Resident Manufacturing Representative, a simulated forward bulkhead for the CM inner-crew compartment was fabricated by North American and sent to MSFC for use in developing a head for the magnetic hammer which would be compatible to the extremely thin skins used on the compartment. The need for the magnetic hammer arose from the "canning" and "wrinkles" found after welding on the forward bulkhead. A tryout for the magnetic hammer on the simulated bulkhead was scheduled the first week in January.
Because earth landing system qualification drop tests on boilerplate 6A and boilerplate 19 had failed to demonstrate that Block I recovery aids would not be damaged during landing, MSC notified North American that certain existing interim configuration recovery aid mockups must be replaced by actual hardware capable of fulfilling test requirements. The hardware included: two VHF antennas; one flashing light; one RF antenna, nondeployable; sea marker, swimmer umbilical, nondeployable. In addition, existing launch escape system tower leg bolts should be replaced by redesigned Block I tower bolts, including protective covers, to demonstrate that the redesigned bolts and covers did not degrade the performance of the earth landing system. North American was to reply with a total change plan by January 5, 1966.
NASA Headquarters had directed that crew water intake be recorded on all Apollo flights. To meet this requirement the Government-furnished water gun would have to be modified to include a metering capability. A gun with this capability was successfully flown on the Gemini VI and Gemini VII flights and could be used without change in the CM and LEM if it could withstand the higher water pressure. Incorporation of the gun could require bracket changes in the CM and the LEM.
The SM reaction control system engine qualification was completed with no apparent failures.
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MSC and Grumman completed negotiations to convert the LEM contract from cost-plus-fixed-fee to cost- plus-incentive fee. In addition to schedule and performance incentives, bonus points would be awarded for cost control during FY 66 and FY 67. Four LEMs were also added to the program. LEM mockup-3 would be used as the KSC verification vehicle; LEM test article-2 and LEM test article-10 (refurbished vehicles) would be used in the first two flights of the Saturn V launch vehicle.
A total of 167 contract change authorizations (CCAs) to the Grumman contract had been issued by December 31. Negotiation of the proposal for the conversion to a cost-plus-incentive-fee included all CCAs through No. 162, and CCA amendments dated before December 9. Proposals for CCAs 163167 were in process and would be submitted according to contract change procedures.
ASPO Manager Joseph F. Shea reported to Apollo Program Director Samuel C. Phillips on changes in spacecraft weights:
The Preliminary Design Review for the Block II pressure garment assembly was held at International Latex Corporation.
An OMSF memorandum spelled out operational constraints for Apollo experimenters to prevent experiment-generated operational problems. The author, E. E. Christensen, investigated the area at the request of NASA Associate Administrator for Manned Space Flight George E. Mueller and developed some general conclusions, based on experience gained in the Gemini experiments program.
Christensen said the following items should be considered:
The LEM landing gear subsystem was reviewed during the LEM Critical Design Review at MSC and Grumman. The review disclosed no major design inadequacies of the landing gear. The review included: lunar landing performance, structural and mechanical design, structural and thermal analysis, overall subsystem test program including results of tests to date, and conformance of landing gear design to LEM specifications.
MSC directed International Latex Corporation to use the following cross section of materials in fabricating the A6L thermal meteoroid garment, outside to inside: One layer of six-ounce Nomex cloth; seven layers of H.R.C. super-insulation, starting with one-fourth mil aluminized mylar and alternating with 1.5-mil unwoven dacron spacers; two layers of seven-ounce neoprene rip stop nylon (one side coated with neoprene).
Contractor personnel began an exercise to identify problem areas associated with activity within the LEM. Subjects using pressurized suits and portable life support systems ran through various cockpit procedures in the LEM mockup. Evaluations would continue during the week of January 10, using astronauts. The purpose of the exercise was to identify and gather data on problem areas in support of the Critical Design Review scheduled to be held at Grumman in late January.
The Apollo Joint Operations Group (JOG) was disestablished by its cochairmen. JOG had been established in February 1964 to exchange up-to- date status information on operational problems and to provide a means for their solution.
Subsequent to the establishment of JOG, responsibility for the Panel Review Board was transferred to the Apollo Program Director, and the Operations Management Group and Operations Executive Group were established. Those activities satisfied the requirements of both the Apollo Program Director and Mission Operations Director and provided the operational problem status and solution capability.
Apparently the only available spacecraft-LEM-adapter SLA thermal coating material which would meet the emissivity requirements for LEM flights was 24-carat gold. North American Tulsa, Oklahoma was predicting 18-week and 10-week schedule slips, respectively, for the first two Block 11 SLAs and a $10-12 million cost impact. A meeting would be held at Tulsa January 17 between North American, Grumman, and MSC to determine the course of the action to be taken.
The 500-second limitation for the Block I service propulsion system SPS engine qualification program was increased to 600 seconds for the last three altitude qualification tests. The spacecraft 020 SPS mission duty cycle required a 310-second burn and a 205-second burn. Discussions with Systems Engineering Division indicated that the long SPS burns were needed to support a full-duration S-IVB mission and there was little likelihood the requirement could be modified. The Block II engine delivery schedules prohibited obtaining a Block II engine in time to support spacecraft 020.
George M. Low, Deputy Director of MSC, outlined the general purpose and plans for the Lunar Sample Receiving Laboratory during a telephone conversation with Oran W. Nicks, NASA Director of Lunar and Planetary Programs:
The first fuel cell system test at White Sands Test Facility was conducted successfully. Primary objectives were: 1 to verify the capability of the ground support equipment and operational checkout procedure to start up, operate, and shut down a single fuel cell power plant; and 2 to evaluate fuel cell operations during cold gimbaling of the service propulsion engine.
Soviet life-support systems used in Vostok and Voskhod spacecraft appeared to use a sodium superoxide compound as a source of oxygen, A. W. Petrocelli, General Dynamics Corporation, told Missiles and Rockets. Petrocelli estimated the Russians had published three times more basic research papers than U.S. scientists on these materials and were continuing efforts to improve life-support systems by studying compounds such as new superoxides, peroxides, and ozonides. He also said they were searching for better carbon dioxide absorbers.
The LEM electrical power system use of the primary structure as the electrical ground return was approved after Grumman presentations were made to ASPO and Engineering and Development personnel. The descent-stage batteries would not use a descent-stage structure ground to preclude current flow through the pyrotechnic interstage nut and bolt assemblies. The ascent and descent stage batteries would be grounded to primary structure in the near vicinity of the ascent-stage batteries. In addition, several selected manually operated solenoids would ground. All other subsystems would remain grounded to the "single-point" vehicle ground. This change would be implemented by Grumman with no cost or schedule impact and would effect a weight savings of approximately 7.7 kg (17 lbs).
A decision made at a Program Management Review eliminated the requirement for a land impact program for the CM to support Block I flights. Post-abort CM land impact for Saturn IB launches had been eliminated from Complex 37 by changes to the sequence timers in the launch escape system abort mode. The Certification Test Specification and related Certification Test Requirements would reflect the new Block II land impact requirements.
Mission requirements for AS-503 were reviewed to determine if the LEM test objectives which caused the crew to be in the LEM at high altitudes (3,704 to 12,964 km (2,000 to 7,000 nm)) could be deleted. The reason for keeping the crew out of the LEM at those altitudes was the possibility they might be exposed to a total radiation dose which might prevent them from flying a later lunar mission.
The service propulsion subsystem (SPS) maximum total burn time was set at 515 sec for Mission AS-502, instead of 385 sec. The higher limit was expected to be attained due to the Block I testing burn time being extended to 600 sec. An SPS propellant loading of 16,783 kg (37,000 lbs) and the 515-sec burn limit had been included in the Apollo Mission Data Specifications, which was in the publication cycle for support of the AS-502 Reference Trajectory.
Hamilton Standard Division was directed by Crew Systems Division to use a 2.27-kg (5-lbs) battery for all flight hardware if the power inputs indicated that it would meet the four-hr mission. The battery on order currently weighed 2.44 kg (5.4 lbs). This resulted in an inert weight saving of l.45 kg (3.2 lbs) and a total saving on the LEM and CSM of 5.44 kg (12 lbs).
The Grumman contract revision, converting the contract to cost-plus-incentive-fee, was signed. The period of the contract was extended through December 1969.
Apollo Mission A-004 was successfully accomplished at White Sands Missile Range. This was the first flight test utilizing the Apollo Block I type spacecraft and the sixth and final test of the Apollo CSM development program at WSMR.
NASA negotiated a contract with Massachusetts Institute of Technology (MIT) for a program of radar and radiometric measurements on the surface of the moon. The program, which would be active until March 31, 1967, would have Paul B. Sebring of MIT's Lincoln Laboratory as principal investigator. Results would be used to select areas for intensive study to support investigations related to manned landing sites.
Arthur T. Strickland of NASA's Lunar and Planetary Programs Office would be the technical monitor. Andrew Patteson of the MSC Lunar Surface Technology Branch was requested as alternate technical monitor.
NASA converted one of its major contracts from a cost-plus-fixed-fee to a cost-plus-incentive-fee agreement. The contract was with North American Aviation's Space and Information Systems Division, Downey, Calif., for development of the Apollo spacecraft command and service modules (CSM) and spacecraft-lunar excursion module adapter (SLA).
NASA Hq. requested the Apollo Spacecraft Program Office at Manned Spacecraft Center to evaluate the impact, including the effect on ground support equipment and mission control, of a dual AS-207/208 flight as early as AS-207 was currently scheduled. ASPO was to assume that launch vehicle 207 would carry the Block II CSM, launch vehicle 208 would carry the lunar excursion module (LEM), and the two launches would be nearly simultaneous. Kennedy Space Center (KSC) and Marshall Space Flight Center (MSFC) were asked to make similar studies for their systems. Response was requested by February 7, 1966.
The Manned Spacecraft Center (MSC) Checkout and Test Division was informed by the Flight Crew Operations Director that in reference to a request for "our desires for altitude chamber runs on Apollo spacecraft, we definitely feel three runs are mandatory on CSMs 012 and 014. For planning purposes I think we should assume this is a steady-state requirement although it should be a subject for review as we accumulate experience." Runs on backup crews had been deleted in several instances if they had already flown and the mission was essentially the same. The value of chamber runs in terms of crew confidence was great and it was assumed that no one would care to make a manned run without a previous unmanned run.
MSC Assistant Director for Flight Crew Operations Donald K. Slayton said he did not think that current testing or proposed evaluation would do anything to resolve the basic debate between optics versus radar as a primary LEM rendezvous aid. Slayton said, "The question is not which system can be manufactured, packaged, and qualified as flight hardware at the earliest date; it is which design is most operationally suited to accomplishing the lunar mission. The 'Olympics' contribute nothing to solving this problem." He proposed that an MSC management design review of both systems at the earliest reasonable date was the only way to reach a conclusion, adding, "This requires only existing paperwork and knowledge - no hardware."
In response to a January 28 TWX from NASA Hq., MSC personnel made recommendations after evaluating the impact of a dual AS-207/208 flight on ground support and mission control. On February 2, John P. Mayer, Chief, Mission Planning and Analysis Division, told the Assistant Director for Flight Operations that the sole area of concern would be in providing the necessary Real Time Computer Complex readiness in a time frame consistent with the AS-207 launch schedule. Mayer also recommended that a decision be made in the very near future to commit AS-207 and AS-208 to a dual mission and that, if possible, IBM personnel knowledgeable in the Gemini dual vehicle system be diverted to the proposed mission if major modifications were not required for the Gemini XI and Gemini XII missions.
On February 4, John D. Hodge, Chief of the Flight Control Division, listed for the Technical Assistant for Apollo some problem areas that could arise in the operational aspects of the proposed mission with AS-207 carrying a manned CSM and AS-208 carrying only a LEM. Hodge recommended that the two launches not be attempted simultaneously, saying that some time between the launches should be determined, which would eliminate most of the problems anticipated.
Howard W. Tindall, Jr., Assistant Chief, Mission Planning and Analysis Division, in a memo documented some design criteria and philosophy on which the AS-207/208 rendezvous mission plan was being developed by the Rendezvous Analysis Branch. Tindall pointed out that, from the Gemini program experience, the plan was felt to be relatively firm. Tindall named some of the basic features recommended by the study:
MSC awarded $70,000 contract to Rodana Research Corp. to develop emergency medical kits that would "satisfy all inflight and training requirements for the Apollo Command Module and the Lunar Excursion Module." Under terms of contract, two training units would be delivered for each flight, in addition to one mockup and six prototype models. The small kits would contain loaded injectors, tablets, capsules, ointments, inhalers, adhesives, and compressed dressings.
Alfred Cohen, head of the ground support equipment (GSE) office of the Resident Apollo Spacecraft Office (RASPO) at Grumman Aircraft Engineering Corp., objected to the unrealistic production schedule set up by Grumman Manufacturing for LEM GSE. Cohen pointed out that Grumman had been notified many times that NASA did not believe that GSE could be produced in the short time spans formulated by Grumman. Cohen added that Grumman had been informed that this disbelief was based on actual experience with North American Aviation and McDonnell Aircraft Corp. Tracking of the manufacture of such items showed that Grumman was unable to produce in accordance with schedules. Cohen cited that Grumman had planned to complete 99 GSE items in December 1965 and had completed 27; in January it had scheduled 146 items for completion and had completed 43. Cohen requested that the RASPO Manager confront Grumman management with the facts and suggest that they
The first test of the cryogenic gas storage system was successfully conducted from 12:30p.m. February 6 through 8:50 p.m. February 8 at the White Sands Test Facility (WSTF), N. Mex. Primary objectives were to demonstrate the compatibility between the ground support equipment and cryogenic subsystem with respect to mechanical, thermodynamic, and electrical interfaces during checkout, servicing, monitoring, and ground control. All objectives were attained.
The CSM weight program was reviewed by James L. Bullard of MSC and D. Morgan of North American Aviation at a meeting in Houston. The CM 011 projected weight was at its upper limit as designed by the earth-landing-system restraint, about 68 kilograms above the maximum weight used for mission planning. Data to revise the 011 specification to show a CM weight of 5,352 kilograms were being prepared.
CMs 012 and 014 would present definite weight problems. At the time the CM weight vs earth-landing system factors of safety relationships were investigated in the study of the possibility of shaving ablator material from the heatshield, a maximum weight of 5,296 kilograms was established for the manned spacecraft. Bullard had discussed the possibility of a higher CM weight with James M. Peacock of the Systems Engineering Division and the earth-landing-system subsystem manager but had received no definite reply. Bullard said it was imperative that a firm weight be established, above which the weight could not grow, before any weight reductions could be seriously considered. It appeared that 90 to 136 kilograms would have to be eliminated from the spacecraft, and that the reduction would have to be accomplished primarily by removing items.
NASA's Associate Administrator for Space Science and Applications Homer E. Newell advised MSC that he had selected space science investigations to be carried to the moon on Apollo missions, emplaced on the lunar surface by Apollo astronauts, and left behind to collect and transmit data to the earth on lunar environmental characteristics following those missions. Newell assigned the experiments to specific missions and indicated their priority. Any changes in the assignments would require Newell's approval. The experiments, institutions responsible, and principal investigators and coinvestigators were:
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NASA announced conversion of its contract with Grumman Aircraft Engineering Corp. for development of the LEM to a cost-plus-incentive agreement. Under the terms of the new four-year contract Grumman was to deliver 15 flight articles, 10 test articles, and 2 mission simulators. The change added 4 flight articles to the program. The contract provided incentive for outstanding performance, cost control, and timely delivery as well as potential profit reductions if performance, cost, and schedule requirements were not met.
The LEM Configuration Control Panel approved Grumman's request for government-furnished-equipment (North American Aviation-manufactured) optical alignment sights (OAS) for installation in the LEM. A total of 21 OAS units would be required (including 2 spares). Detailed interface requirements between the OAS and LEM would be negotiated between North American and Grumman and delivery dates would be specified during negotiations.
Apollo-Saturn 201 was launched from Cape Kennedy, with liftoff of an Apollo Block I spacecraft (CSM 009) on a Saturn IB launch vehicle at 11:12:01 EST. Launched from Launch Complex 34, the unmanned suborbital mission was the first flight test of the Saturn IB and an Apollo spacecraft. Total launch weight was 22,000 kilograms.
Spacecraft communications blackout lasted 1 minute 22 seconds. Reentry was initiated with a space-fixed velocity of 29,000 kilometers per hour. CM structure and heatshields performed adequately. The CM was recovered by the USS Boxer from the Atlantic about 72 kilometers uprange from the planned landing point. (8.18 S x 11.15 W).
ASPO Manager Joseph F. Shea informed Apollo Program Director Samuel C. Phillips, in response to a January 28 TWX from Phillips, that MSC had evaluated the capability to support a dual launch of AS-207 208 provided an immediate go-ahead could be given to the contractors. Shea said the evaluation had covered mission planning, ground support equipment (GSE), flight hardware, and operations support. Modifications and additional GSE would be required to update Launch Complex 34 at Cape Kennedy to support a Block II CSM. The total cost of supporting the AS-207/208 dual launch was estimated at $10.2 million for the GSE and additional boiler plate CSM configuration, but Shea added that these costs could be absorbed within the FY 1966 budget. Shea recommended that the dual mission be incorporated into the program.
Recent discussion between Axel Mattson of LaRC and Donald K. Slayton of MSC concerning the possibility of astronauts' using the Lunar Landing Research Facility (LLRF) at Langley led to agreement that astronauts should fly the LLRF for a week before flying the MSC lunar landing training vehicle. An evaluation of the proposal at MSC resulted in a letter from Director Robert R. Gilruth to LaRC Director Floyd L. Thompson indicating the desirability of using the LLRF and also the desirability of some equipment modifications that would improve the vehicle with a minimum effort. These included such items as LEM flight instruments, hand controllers, panel modifications, and software changes. Also discussed was the training benefit that could be realized if the facility were updated to use a vehicle like the LEM so the pilots could become familiar with problems of a standup restraint system, pressure suit and helmet interface with the cockpit structure and window during landing operations, and sensing and reacting to the dynamic cues of motion while standing up.
Apollo Program Director Samuel C. Phillips, in a memo to the Director, Office of Advanced Research and Technology, NASA Hq., pointed out that in July 1965 the Apollo program encountered stress corrosion of titanium tanks from nitrogen tetroxide propellant, and that through his auspices Langley Research Center initiated a crash effort that had been a key factor in solving the problem. Phillips said that Langley's effort had been vigorous, thorough, and of the highest professional calibre. An excellent team relationship had been maintained with MSC, MSFC, KSC, vehicle contractors, and tank subcontractors and LaRC personnel had given dedicated and outstanding support. He cited that
Apollo Program Director Samuel C. Phillips notified the three manned space flight Centers that they were requested to plan for a dual AS-207/208 mission, assuming that launch would occur one month later than the 207 launch now scheduled.
The first integrated test of the service propulsion system, electrical power system, and cryogenic gas storage system was successfully conducted at the White Sands Test Facility.
NASA Hq. told MSC that delivery changes should be reflected in manned space flight schedules as controlled milestone changes and referred specifically to CSM 008 - April 1966; CSM 011 - April 15, 1966; and CSM 007 - March 31, 1966. Headquarters noted that the "NAA (North American Aviation Inc.) contract delivery date remains 28 February 1966" for each and that "every effort should be made to deliver these articles as early as possible, since completion of each is constraining a launch or other major activity."
Apollo Program Director Samuel C. Phillips informed MSC Director Robert R. Gilruth of specific NASA Hq. management assignments that had been implemented in connection with the ALSEP program. He told Gilruth he had asked Len Reiffel to serve as the primary focus of Headquarters on ALSEP and that he would be assisted by three members of the Lunar and Planetary Program Office of the Office of Space Science and Applications: W. T. O'Bryant, E. Davin, and R. Green.
MSC analysis of Grumman ground support equipment (GSE) showed that a serious problem in manufacturing and delivery of GSE would have a significant program impact if not corrected immediately. Information submitted to NASA indicated a completion rate of 35 percent of that planned. Grumman was requested to initiate action to identify causes of the problem and take immediate remedial action. A formal recovery plan was to be submitted to NASA, considering the following guidelines:
NASA Administrator James E. Webb and Deputy Administrator Robert C. Seamans, Jr., selected Bendix Systems Division, Bendix Corp., from among three contractors for design, manufacture, test, and operational support of four deliverable packages of the Apollo Lunar Surface Experiments Package (ALSEP), with first delivery scheduled for July 1967. The estimated cost of the cost-plus-incentive-fee contract negotiated with Bendix before the presentation by the Source Evaluation Board to Webb and Seamans was $17.3 million.
John D. Hodge, Chief of MSC's Flight Control Division, proposed that time-critical aborts in the event of a service propulsion system failure after translunar injection (TLI; i.e., insertion on a trajectory toward the moon) be investigated. Time-critical abort was defined as an abort occurring within 12 hours after TLI and requiring reentry in less than two days after the abort.
He suggested that if an SPS failed the service module be jettisoned for a time-critical abort and both LEM propulsion systems be used for earth return, reducing the total time to return by approximately 60 hours. As an example, if the time of abort was 10 hours after translunar injection, he said, this method would require about 36 hours; if the SM were retained the return time would require about 96 hours.
He added that the LEM/CM-only configuration should be studied for any constraints that would preclude initiating this kind of time-critical abort. Some of the factors to be considered should be:
Apollo Program Director Samuel C. Phillips discussed cost problems of the contract with General Motors' AC Electronics Division, in a memo to NASA Associate Administrator for Manned Space Flight George E. Mueller. One of the problems was late design releases from Massachusetts Institute of Technology to AC Electronics, resulting in an increase of $2.7 million. Phillips also pointed out that computer problems at Raytheon Corp. had increased the program cost by $6.7 million, added that many of these problems had their origins in the MIT design, and listed seven of the most significant technical problems. Phillips stated that MSC in conjunction with AC Electronics had taken several positive steps:
MSC requested use of Langley Research Center's Lunar Orbit and Landing Approach (LOLA) Simulator in connection with two technical contracts in progress with Geonautics, Inc., Washington, D.C. One was for pilotage techniques for use in the descent and ascent phases of the LEM profile, while the other specified construction of a binocular viewing device for simplified pilotage monitoring. Langley concurred with the request and suggested that MSC personnel work with Manuel J. Queijo in setting up the program, in making working arrangements between the parties concerned, and in defining the trajectories of interest.
NASA Deputy Administrator Robert C. Seamans, Jr., said he had been reflecting on network coverage for Apollo, as a result of the Gemini VIII experience. He recognized that Apollo had more weight-carrying ability and stowage space than Gemini and that as a consequence live TV from the spacecraft might be a good possibility. This coverage could allow for extensive TV during travel to and from the moon as well as during lunar landing, disembarkation, and lunar exploration. The TV equipment would not be solely for news purposes but he felt "all manner of demands will be placed upon us for continuous live coverage." He requested a review at an early date as to
NASA OMSF prepared a position paper on NASA's estimated total cost of the manned lunar landing program. Administrator James E. Webb furnished the paper for the record of the FY 1967 Senate authorization hearings and the same statement was given to the House Committee. The paper was approved by Webb and George E. Mueller and placed the run-out costs for the program at $22.718 billion.
A Space Science Office was established as an interim-organizational element of MSC's Engineering and Development Directorate, pending development of a permanent organization. The Office would report to the E&D Manager, Experiments, and would be responsible for providing support technology for manned space flight in environmental elements such as space radiation, micrometeoroid flux, lunar surface conditions and planetary atmospheres. It would also participate in making measurements and conducting experiments with and from manned spacecraft. Robert O. Piland was named Acting Manager of the Office.
MSC sent proposed organizational changes to NASA Hq. for approval by the Administrator. The two basic changes to be made were:
The Space Science Division had been discussed with NASA Associate Administrator for Space Science and Applications Homer E. Newell and would consolidate into a single organization several of the space science activities of MSC, including those under the Assistant Chief for Space Environment in Advanced Spacecraft Technology Division as well as the planned Lunar Sample Receiving Laboratory. The four basic functions of the Division, reflecting the increased scientific program emphasis, would be
In response to an April 1 query from George E. Mueller, NASA OMSF, asking, "Could GE or Boeing help on GAEC (Grumman Aircraft Engineering Corp.) GSE?" Apollo Program Director Samuel C. Phillips replied that on several occasions in the recent past he had made known to both Center and industry representatives that a highly capable, quick-response ground support equipment (GSE) organization had been built by and through General Electric, which the Centers and other companies should take advantage of whenever it could help with schedules or costs. He also recalled that "in one of our last two meetings with Grumman" he had reminded them of this capability and had suggested they consider it.
In response to the March 30 memo from NASA Deputy Administrator Robert C. Seamans, Jr., regarding potential uses of TV on Apollo, Associate Administrator for Manned Space Flight George E. Mueller replied that ". . . we have been making a progressive review of the Apollo electronic systems. Performance and application of the Apollo TV system are being looked at as part of the review." He added that he expected to be in position by mid-May to discuss plans with Seamans in some detail.
Deputy Administrator Robert C. Seamans, Jr., received a letter from John S. Foster, Jr., Director of Defense Research and Engineering, expressing pleasure that the agreement between the Department of Defense and NASA on extraterrestrial mapping, charting, and geodesy support had been consummated. He was returning a copy of the agreement for the NASA files.
A Bellcomm, Inc., memo to Apollo Program Director Samuel C. Phillips presented the status of the Apollo Block I spacesuit assembly. A modified Gemini suit manufactured by the David Clark Manufacturing Co., the overall assembly consisted of a constant-wear garment and a pressure garment assembly. Crew members would also be provided with coveralls to wear in a pressurized cabin as desired. The primary functional requirement of the Block I suit was to provide environmental protection in a depressurized CSM cabin. Therefore, it did not incorporate a thermal and micrometeoroid-protection garment or the helmet visor assembly, which were required for extravehicular operation. The memo listed seven major modifications required to adapt the Gemini suit to make it acceptable for use as an Apollo Block I item.
MSC Director Robert R. Gilruth told Associate Administrator for Manned Space Flight George E. Mueller he felt it was necessary either to proceed with the Apollo Experiment Pallet program or to cancel the program, reaching a decision not later than April 22. Gilruth pointed out that four contracts had been initiated in December 1965 for Phase C of the program, that the contracts were completed on April 6, that full-scale mockups had been delivered, and that documentation with cost proposals were due April 22. The four contractors were McDonnell Aircraft, Martin-Denver, Northrop, and Lockheed Aircraft-Sunnyvale. Gilruth said it was apparent that all contractors had done an exceptionally good job during the Phase C effort. Low cost had been emphasized in every phase of the program, with contractors responding with a very economical device and at the same time a straightforward design that offered every chance of early availability and successful operation.
Of equal significance, he said, "the Pallet offers the opportunity to minimize the interface with both North American and the Apollo program. It provides a single interface to Apollo and NAA, allowing the multiple-experiment interfaces to be handled by a contractor whose specific interest is in experiments. If experiments are to be carried in the Service Module, the Pallet both by concept and experience offers the most economical approach." Gilruth said the following plan had been developed:
Spacecraft 007 and 011 were delivered to NASA by North American Aviation. Spacecraft 007 was delivered to Houston to be used for water impact and flotation tests in the Gulf of Mexico and in an environmental tank at Ellington AFB. It contained all recovery systems required during actual flight and the total configuration was that of a flight CM.
The CM of spacecraft 011 was similar to those in which astronauts would ride in later flights and the SM contained support systems including environmental control and fuel cell systems and the main service propulsion system. Spacecraft 011 was scheduled to be launched during the third quarter of 1966.
ASPO Manager Joseph F. Shea and members of his organization were invited to attend the formal presentation by the Aeronutronic Division of Philco Corp. on a "Study of Lunar Worm Planetary Roving Vehicle Concept," at LaRC on May 3. The exploratory study to determine the feasibility of a bellows-concept mobile vehicle included a mobility and traction analysis for several kinds of bellows motion and several soil surfaces; analysis of both metallic and nonmetallic construction to provide the bellows structure; brief design studies of the concept as applied to a small unmanned vehicle, a supply vehicle, a small lunar shelter, a large lunar shelter; and an overall evaluation of the suitability of the concept for carrying out various missions as compared with other vehicles.
MSC announced the establishment of a Flight Experiment Board. The Board would select and recommend to the Director space flight experiments proposed from within the Center and judged by the Board to be in the best interest of the Center and the NASA space flight program. MSC-originated flight experiments were expected normally to be designated as one of two general classifications: Type I - Medical, Space Science, Flight Operations or Engineering that would yield new knowledge or improve the state of the art; Type II - Operational, which would be required in direct support of major manned flight programs such as Apollo.
Members appointed to the Board were George M. Low, chairman; Warren Gillespie, Jr., executive secretary; Maxime A. Faget; Robert O. Piland; Charles A. Berry; Christopher C. Kraft, Jr.; Donald K. Slayton; Kenneth S. Kleinknecht; and Joseph N. Kotanchik. The Board would meet bimonthly on the first Friday of every even month, with called meetings at the direction of the chairman when necessary to expedite experiments.
NASA Office of Manned Space Flight policy for Design certification Reviews (DCRs) was defined for application to manned Apollo missions by a NASA directive. The concept stressed was that design evaluation by NASA management should begin with design reviews and inspections of subsystems and culminate in a DCR before selected flights. Documentation presented at DCRs were to reflect this sequence of progressive assessment of subsystems.
J. K. Holcomb, Director of Apollo Flight Operations, NASA OMSF, reported to Apollo Program Director Samuel C. Phillips that the NASA flight scoring system was considered satisfactory in its present form. NASA Associate Administrator for Manned Space Flight George E. Mueller had taken exception to including a statement of primary and secondary objectives in the AS-202 Mission Rules Guidelines. The scoring system, established by the Office of Program Reports, labeled each flight a success or a failure in a report to the Administrator and Deputy Administrator and was used in briefing Congress and the press. Flights were categorized only as "successful" or "unsuccessful." Criteria for judging success of a mission were based on the statement of primary objectives in the Mission Operations Report. If one primary objective was missed the flight was classified as "unsuccessful."
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MSC Director Robert R. Gilruth wrote George E. Mueller, NASA OMSF, that plans were being completed for MSC in-house, full-scale parachute tests at White Sands Missile Range (WSMR), N. Mex. The tests would be part of the effort to develop a gliding parachute system suitable for land landing with manned spacecraft. Tests were expected to begin in July 1966, with about six tests a year for two or three years. Gilruth pointed out that although full-scale tests were planned for WSMR it would not be possible to find suitable terrain at that site, at Edwards Air Force Base, Calif., or at El Centro, Calif., to determine operational and system requirements for land landing in unplanned areas. Unplanned-area landing tests were cited as not a major part of the program but a necessary part. He pointed out that the U.S. Army Reservation at Fort Hood, Tex., was the only area which had the required variety of landing obstacle sizes and concentrations suitable for the unplanned-area tests. Scale-model tests had been made and would be continued at Fort Hood without interference to training, and MSC had completed a local agreement that would permit occasional use of the reservation but required no fiscal reimbursement or administrative responsibility by MSC. This action was in response to a letter from Mueller July 8, 1965, directing that MSC give careful consideration to transfer of parachute test activities to WSMR.
NASA Hq. requested the MSC Apollo Spacecraft Program Office to reassess the spacecraft control weights and delta-V budget and prepare recommendations for the first lunar landing mission weight and performance budgets. The ASPO spacecraft Weight Report for April indicated that the Block II CSM, when loaded for an 8.3-day mission, would exceed its control weights by more than 180 kilograms and the projected value would exceed the control weight by more than 630 kilograms. At the same time the LEM was reported at 495 kilograms under its control weight. Credit for LEM weight reduction had been attributed to Grumman's Super Weight Improvement Program.
Engine testing at the Arnold Engineering Development Center (AEDC) had been the subject of discussions during recent months with representatives from MSC, Apollo Program Quality and Test groups, AEDC, Air Force Systems Command and ARO, Inc., participating. While AEDC had not been able to implement formal NASA requirements, the situation had improved and MSC was receiving acceptable data.
In a letter to ASPO Manager Joseph F. Shea, Apollo Program Director Samuel C. Phillips said, ". . . I do not think further pressure is in order. However, in a separate letter to Lee Gossick, I have asked that he give his personal attention to the strict adherence to test procedures, up-to-date certification of instrumentation, and care and cleanliness in handling of test hardware."
The Grumman-directed Apollo Mission Planning Task Force reported on studies of abort sequences for translunar coast situations and the LEM capability to support an abort if the SM had to be jettisoned. The LEM could be powered down in drifting flight except for five one-hour periods, and a three-man crew could be supported for 57 hours 30 minutes. It was assumed that all crewmen would be unsuited in the LEM or tunnel area and that the LEM cabin air, circulated by cabin fans, would provide adequate environment.
MSC Deputy Director George M. Low recommended to Maxime A. Faget, MSC, that, in light of Air Force and Aerospace Corp. studies on space rescue, MSC plans for a general study on space rescue be discontinued and a formal request be made to OMSF to cancel the request for proposals, which had not yet been released. As an alternative, Low suggested that MSC should cooperate with the Air Force to maximize gains from the USAF task on space rescue requirements.
A memo to KSC, MSC, and MSFC from the NASA Office of Manned Space Flight reported that the NASA Project Designation Committee had concurred in changes in Saturn/Apollo nomenclature recommended by Robert C. Seamans, Jr., George E. Mueller, and Julian Scheer:
E. E. Christensen, NASA OMSF Director of Mission Operations, in a letter to Christopher C. Kraft, Jr., MSC, said he was certain the problem of potential mission abort was receiving considerable attention within the Flight Operations Directorate. The resulting early development of related mission rules should provide other mission activities with adequate planning information for design, engineering, procedural, and training decisions. Christensen requested that development of medical mission rules be given emphasis in planning, to minimize the necessity for late modification of spacecraft telemetry systems, on-board instrumentation, ground-based data-processing schemes, and training schedules.
As a result of a fire in the environmental control system (ECS) unit at AiResearch Co., a concerted effort was under way to identify nonmetallic materials as well as other potential fire problems. MSC told North American Aviation it appeared that at least some modifications would be required in Block I spacecraft and that modifications could be considered only as temporary expedients to correct conditions that could be more readily resolved in the original design. MSC requested that North American eliminate or restrict as far as possible combustible materials in the following categories in the Block II spacecraft:
George E. Mueller, NASA Associate Administrator for Manned Space Flight, forwarded views and recommendations of the Interagency Committee on Back Contamination to MSC Director Robert R. Gilruth for information and necessary action. The Committee had met at MSC to discuss the status of the Lunar Receiving Laboratory (LRL) on April 13.
The committee agreed in general philosophy and preliminary specific detail with the overall design plan, schedule, size containment provisions, and functional areas of the LRL; it approved the plan to secure Baylor Medical School or an equally qualified institution to head a development for the bioanalysis protocol; it expressed its concern with the possibility of uncontrolled outventing of CM atmosphere following splashdown; and it recommended that MSC investigate alternate means of treatment and isolation of Apollo space crews and associated physicians and technicians. MSC replied on June 8 that the analytical work in the engineering and biologic areas of the recommendations had been started and that the date for review and evaluation of the studies would be June 27.
AS-500-F, the Pathfinder first full-scale Apollo Saturn V launch vehicle and spacecraft combination, was rolled out from Kennedy Space Center's Vehicle Assembly Building to the launch pad, for use in verifying launch facilities, training crews, and developing test procedures. The 111-meter, 227,000-kilogram vehicle was moved by a diesel-powered steel-link-tread crawler-transporter exactly five years after President John F. Kennedy asked the United States to commit itself to a manned lunar landing within the decade. Meanwhile, schedule for Saturn V threatened by continued problems in development of S-II stage (inability to get sustained 350-second burns without instrumentation failures, shutoffs, minor explosions).
ASPO Manager Joseph F. Shea informed Rocco A. Petrone, KSC, that structural problems in the CSM fuel and oxidizer tanks required standpipe modifications and that they were mandatory for Block I and Block II spacecraft. Retrofit was to be effective on CSM 011 at KSC and other vehicles at North American's plant in Downey, Calif.
Apollo Program Director Samuel C. Phillips asked NASA Procurement Director George J. Vecchietti to help ensure there would be no gap in the Philco Corp. Aeronutronic Division's development of penetrometers to assess the lunar surface. Originally the penetrometers were to be deployed from a lunar survey probe, but the Apollo Program Office had concluded that they should be further developed on an urgent basis for possible deployment from the LEM just before the first lunar landing. Phillips sought to prevent development gaps that could critically delay the landing program.
Headquarters informed MSC that MSFC had been assigned development responsibility for the S027 X-ray Astronomy experiment for integration with the Saturn S-IVB/instrument unit. Should development be found not feasible, a modified version of the equipment was planned. MSC was requested to study:
MSC top management had agreed with Headquarters on early Center participation in discussions of scientific experiments for manned flights, Deputy Director George M. Low informed MSC Experiments Program Manager Robert O. Piland. NASA Associate Administrator for Space Science and Applications Homer E. Newell had asked, during a recent OSSA Senior Council meeting at MSC, that the Center and astronauts comment on technical and operational feasibility of experiments before OSSA divisions and subcommittees acted on proposals. Low and Director Robert R. Gilruth had agreed. Because of manpower requirements MSC refused a request to be represented on all the subcommittees, but MSC would send representatives to all meetings devoted primarily to manned flight experiments and would contribute to other meetings by phone.
In response to a query on needs for or objections to an Apollo spacecraft TV system, MSC Assistant Director for Flight Crew Operations Donald K. Slayton informed the Flight Control Division that FCOD had no operational requirements for a TV capability in either the Block I or the Block II CSM or LM. He added that his Directorate would object to interference caused by checkout, crew training, and inflight time requirements.
A series of actions on the LM rendezvous sensor was summarized in a memo to the MSC Apollo Procurement Branch. A competition between LM rendezvous radar and the optical tracker had been initiated in January 1966 after discussion by ASPO Manager Joseph F. Shea, NASA Associate Administrator for Manned Space Flight George E. Mueller, and MSC Guidance and Control Division Chief Robert C. Duncan. On May 13, RCA and Hughes Aircraft Go. made presentations on the rendezvous radar optical tracker. The NASA board that heard the presentations met for two days to evaluate the two programs and presented the following conclusions:
MSC informed the NASA Associate Administrator for Manned Space Flight that it had established a Lunar Receiving Laboratory Program Office with Joseph V. Piland as Program Manager. The office included the functions of program control, procurement, requirements, engineering, and construction.
The MSC Flight Experiments Selection Board reviewed and endorsed three proposals for analysis of lunar samples and forwarded them to NASA Hq. for consideration. Titles of the proposals and principal investigators were:
Joseph N. Kotanchik, MSC, told H. E. McCoy of KSC that his April 4 letter discussing problems and solutions in packing parachutes at KSC by Northrop-Ventura Co. had been studied. To effect economies in the program and move forward delivery of a complete spacecraft to KSC, the upper-deck buildup would be done at North American Aviation's plant in Downey, Calif., and therefore parachutes would be packed at Northrop-Ventura beginning with spacecraft 017. Kotanchik requested KSC to support the parachute packing at Northrup-Ventura by assigning two experienced inspectors for the period required (estimated at two to four weeks for each spacecraft).
A memorandum for the file, prepared by J. S. Dudek of Bellcomm, Inc., proposed a two-burn deboost technique that required establishing an initial lunar parking orbit and, after a coast phase, performing an added plane change to attain the final lunar parking orbit. The two-burn deboost technique would make a much larger lunar area accessible than that provided by the existing Apollo mission profile, which used a single burn to place the CSM and LM directly in a circular lunar parking orbit over the landing site and would permit accessibility to only a bow-tie shaped area approximately centered about the lunar equator. On August 1, the memo was forwarded to Apollo Program Director Samuel C. Phillips, stating that the trajectory modification would increase the accessible lunar area about threefold. The note to Phillips from R. L. Wagner stated that discussions had been held with MSC and it appeared that the flight programs as planned at the time could handle the modified mission.
Crew procedures in the LM during lunar stay were reported completed and documented for presentation to NASA Hq. personnel.
Grumman LM thermodynamics studies showed the LM thermal shield would have to be modified because fire-in-the-hole pressures and temperatures had increased. Portions of the LM descent stage would be redesigned, but modification of the descent stage blast deflector was unlikely.
Director of Flight Operations Christopher C. Kraft, Jr., said that MSC had been directed by NASA OMSF to outline technical problems and both cost and schedule impact of adding three backup Apollo missions to the planned flight schedule. The missions to be evaluated would be AS-207/208 or AS-206/207; AS-503D; and AS-503F. Each of these missions would provide alternate means of obtaining primary program objectives in the event of flight contingencies during tests or of major schedule adjustments.
The Quarterly Program Review was held at Grumman by NASA Associate Administrator for Manned Space Flight George E. Mueller and Apollo Program Director Samuel C. Phillips. Attendees included MSC's Robert R. Gilruth, Joseph F. Shea, and William A. Lee. The meeting focused on excessive costs experienced by Grumman and Grumman President L. J. Evans's announcement of the immediate establishment of a Program Control Office with a subcontract manager reporting directly to Vice President Joseph Gavin. Hugh McCullough was appointed to head the Program Control Office.
The next week Evans made the following appointments: Robert Mullaney was relieved as Program Manager and appointed Assistant to Senior Vice President George F. Titterton; William Rathke was relieved as Engineering Manager and named Program Manager; Thomas Kelly was promoted from Assistant Engineering Manager to Engineering Manager; and Brian Evans was relieved as corporate Director of Quality Assurance and appointed LEM Subcontract Manager, reporting to Gavin.
Melvyn Savage, Apollo Test Director in NASA Hq., was named to head the Apollo Applications Program Test Directorate. LeRoy E. Day was named to replace Savage in Apollo.
First orbital test Saturn IB; no spacecraft. AS-203 lifted off from Launch Complex 37, Eastern Test Range, at 10:53 a.m. EDT in the second of three Apollo-Saturn missions scheduled before manned flight in the Apollo program. All objectives - to acquire flight data on the S-IVB stage and instrument unit - were achieved.
The uprated Saturn I - consisting of an S-IB stage, S-IVB stage, and an instrument unit - boosted an unmanned payload into an original orbit of 185 by 189 kilometers. The inboard engine cutoff of the first stage occurred after 2 minutes 18 seconds of flight and the outboard engine cutoff was 4 seconds later. The S-IVB engine burned 4 minutes 50 seconds. No recovery was planned and the payload was expected to enter the earth's atmosphere after about four days.
NASA requested assignment of three additional sanitary engineers from the Public Health Service. Pointing out that one sanitary engineer had been on detail to NASA since 1964 and that his effort had been directed primarily to the control of outbound contamination, NASA said this problem and that of back contamination had reached proportions that required a more intensified effort. NASA would reimburse the Public Health Service under contract.
Homer E. Newell, NASA Associate Administrator for Space Science and Applications, told George E. Mueller, NASA Associate Administrator for Manned Space Flight, that "the highest scientific priority for the Apollo mission is for return to earth of lunar surface material." He added that the material would have a higher scientific value for geologists if the location and attitude of each sample were carefully noted and for the biologists if collected in an aseptic manner. He suggested the following sequence:
North American Aviation informed Grumman that it was closing out its office at Grumman's Bethpage, N.Y., plant at the close of business on July 8. If study found that reestablishment of a Space and Information Division resident representative at Bethpage was in the best interest of the program, North American Aviation would comply.
In reply to a letter from Grumman, MSC concurred with the recommendation that a 135-centimeter lunar surface probe be provided on each landing-leg footpad and that the engine cutoff logic retain its basic manual mode. MSC did not concur with the Grumman recommendation to incorporate the automatic engine cutoff logic in the LM design. MSC believed that the planned descent-stage engine's manual cutoff landing mode was adequate to accomplish lunar touchdown and had decided that the probe-actuated cutoff capability should not be included in the LM design.
MSC Director of Flight Crew Operations Donald K. Slayton and Director of Flight Operations Christopher C. Kraft, Jr., told ASPO Manager Joseph F. Shea: "A comprehensive examination of the Apollo missions leading to the lunar landing indicates that there is a considerable discontinuity between missions AS-205 and AS-207/208. Both missions AS-204 and AS-205 are essentially long duration system validation flights. AS-207/208 is the first of a series of very complicated missions. A valid operational requirement exists to include an optical equal-period rendezvous on AS-205. The rendezvous would be similar to the one initially planned for the Gemini VII flight using, in this case, the S-IVB as the target vehicle." The maneuver would give the crew an opportunity to examine the control dynamics, visibility, and piloting techniques required to perform the basic AS-207/208 mission.
MSC Director Robert R. Gilruth informed MSFC Director Wernher von Braun that for the past two years MSC had studied the use of the mapping and survey system (M&SS) in conjunction with the Apollo program.
NASA Deputy Administrator Robert C. Seamans, Jr., told the Associate Administrators that it was NASA's fundamental policy that projects and programs were best planned and executed when responsibilities were clearly assigned to a management group. He then assigned full responsibility for Apollo and Apollo Applications missions to the Office of Manned Space Flight. OMSF would fund approved integral experiment hardware, provide the required Apollo and Saturn systems, integrate the experiments with those systems, and plan and execute the missions. Specific responsibility for developing and testing individual experiments would be assigned on the basis of experiment complexity, integration requirements, and relation to the prime mission objectives, by the Office of Administrator after receiving recommendations from Associate Administrators.
The Office of Space Science and Applications (OSSA) would be responsible for selecting scientific experiments for manned missions and the experimenter teams for data reduction, data analysis, and dissemination. OSSA would provide to OMSF complete scientific requirements for each experiment selected for flight.
The Office of Advanced Research and Technology (OART) was assigned the overall responsibility for the technology content of the NASA space flight program and for selecting technology experiments for manned missions. OART would provide OMSF complete technology requirements for each experiment selected for flight. When appropriate, scientific and technical personnel would be located in OMSF to provide a working interface with experimenters. The office responsible for each experiment would determine the tracking and acquisition requirements for each experiment; then OMSF would integrate the requirements for all experiments and forward the total requirements to the Office of Tracking and Data Acquisition.
Seamans also spelled out Center responsibilities for manned space flight missions: MSFC, Apollo telescope mount; MSC, Apollo lunar surface experiment package (ALSEP), lunar science experiments, earth resources experiments, and life support systems; and Goddard Space Flight Center, atmospheric science, meteorology, and astronomical science experiments.
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NASA Hq. authorized MSC to proceed with opening bids on August 1 for Phase I construction of the Lunar Receiving Laboratory. MSC was requested to announce the name of the contractor selected for final negotiations for Phase II construction, before opening bids for Phase I construction.
In response to a request from Apollo Program Director Samuel C. Phillips, Bellcomm, Inc., prepared a memorandum on the major concerns resulting from its review of the AC Electronics report on the Apollo Computer Design Review. In a transmittal note to Phillips, I. M. Ross said, "We have discussed these items with MSC. It is possible, however, that (Robert) Duncan and (Joseph) Shea have not been made aware of these problems." The Bellcomm memorandum for file, prepared by J. J. Rocchio, reported that in late February 1966 MSC had authorized AC Electronics Division (ACED) to initiate a complete design review of the Apollo guidance computer to ensure adequate performance during the lunar landing mission. A June 8 ACED report presented findings and included Massachusetts Institute of Technology comments on the findings. In addition to recommending a number of specific design changes, the report identified a number of areas which warranted further review. MSC authorized ACED to perform necessary additional reviews to eliminate all indeterminate design analyses and to resolve any discrepancies between the ACED and MIT positions. At the time Bellcomm prepared the memo many of the problem areas had been or were in process of being satisfactorily resolved. However, several still remained:
NASA signed a supplemental agreement with Chrysler Corp.'s Space Division at New Orleans, La., converting the uprated Saturn I first-stage production contract from cost-plus-fixed-fee to cost-plus-incentive-fee. Under the agreement, valued at $339 million, the amount of the contractor's fee would be based on ability to perform assigned tasks satisfactorily and meet prescribed costs and schedules. The contract called for Chrysler to manufacture, assemble and test 12 uprated Saturn I first stages and provide system engineering, integration support, ground support equipment, and launch services.
NASA Associate Administrator for Manned Space Flight George E. Mueller informed MSC Director Robert R. Gilruth that the MSC Procurement Plan for procurement of three lunar landing training vehicles and the proposed flight test program was approved.
MSC requested LaRC to study the visibility of the S-IVB/SLA combination from the left-hand couch in the command module with the couch in the docked position. (Two positions could be attained, one of them a docking and rendezvous position that moved the seat into a better viewing area from the left-hand window.) LM and CM mockups were already at Langley from the CM-active moving-base docking simulation conducted May-July 1965.
The request was initiated because the flight crew had to rely on an out- the-window reference of the S-IVB/SLA to verify separation of the LM/CSM combination from the S-IVB/SLA. The question arose as to whether the out-the-window reference was sufficient or whether an electromechanical device with a panel readout in the CM was required to verify separation.
The architect-engineer of the Lunar Receiving Laboratory, Smith, Hinchman & Grylls, proposed using a much darker tint in the exterior windows of the LRL than used in other buildings at MSC. J. G. Griffith, Chief of the Engineering Office, inspected samples of the glass and reported:
NASA modified its contract with IBM to provide for work to be performed under a multiple-incentive arrangement covering cost, performance, schedule and equipment management. It also ordered the Real Time Computer Complex (RTCC) at MSC to be converted to IBM System computers, which would increase the operational capability for Apollo. The contract with IBM's Federal Systems Division, Gaithersburg, Md., provided the computing capability required for mission monitoring, inflight mission planning and simulation activities.
Maxime A. Faget, MSC, informed Center Director Robert R. Gilruth there was a continuing effort on lightweight, energy-absorbing, and stowable net couches, and development had been redirected to a nonelastic fabric net couch system attached to existing Apollo attenuation struts. North American Aviation had previously been given the task of investigating the use of net couches on Apollo. Results of that investigation indicated the spacecraft attenuation-strut-vehicle attachments would be overloaded when using net couches. The North American Aviation investigators made their calculations by assuming no-man attenuation in the lateral and longitudinal force directions. Those calculations were recomputed using the design criteria and proper loadings and the results indicated no overloading when using net couches. MSC's Advanced Spacecraft Technology Division had reviewed and approved the efforts, permitting use of the net couches on Apollo and Apollo Applications missions.
MSC requested Ames Research Center to conduct a manual control simulation of the Saturn V upper stages with displays identical to those planned in the spacecraft. On August 5, Brent Creer and Gordon Hardy of Ames had met with representatives from ASPO, Guidance and Control Division, and Flight Crew Operations Directorate to discuss implementation of a modified Ames simulation which would determine feasibility of manual control from first stage burnout, using existing spacecraft displays and control interfaces. Simulations at Ames in 1965 had indicated that the Saturn V could be manually flown into orbit within dispersions of 914 meters in altitude, and 0.1 degree in flight path angle.
MSC worked out a program with LaRC for use of the Lunar Landing Research Facility (LLRF) for preflight transition for LM flight crews before free-flight training in the lunar landing training vehicle. LM hardware sent to Langley to be used as training aids included two flight director attitude indicators, an attitude controller assembly, a thrust-translation controller assembly, and an altitude-rate meter.
MSC suggested that Grumman Aircraft Engineering Corp. redesign the injector for the Bell Aerospace Go. ascent engine as a backup immediately. The Center was aware of costs, but the seriousness of the injector fabrication problem and the impact resulting from not having a backup was felt to be justification for the decision.
The mockup of LM test model No. 3 (TM-3) was shipped by Super Guppy aircraft to Cape Kennedy, on the first trip of the Super Guppy from Grumman, Bethpage, N.Y.
In a letter to the President of Westinghouse Electric Corp., George M. Low, Acting Director of MSC, expressed his concern about the lunar television camera program. Low pointed out that Westinghouse had been awarded the contract by MSC in October 1964, that delivery of the cameras was to be made over a 15-month period, and that the total value of the original cost-plus-fixed-fee contract was $2,296,249 including a fee of $150,300. The cost reports required by the contract (at the time of Low's letter) showed that Westinghouse estimated the cost to complete at $7,927,000 and estimated the hardware delivery date as January 31, 1967. Low pointed out that the proposal letter from Westinghouse in May 1964 stated that "the Aerospace Division considers the Lunar Television Camera to represent a goal culminating years of concentrated effort directed toward definition, design, and verification of critical elements of this most important program. Accordingly, the management assures NASA Manned Spacecraft Center that the program will be executed with nothing less than top priority application of all personnel, facilities, and management resources." Low said that despite these assurances the overrun and schedule slippages indicated a lack of adequate program management at all levels and a general lack of initiative in taking corrective actions to solve problems encountered.
Westinghouse replied to Low on September 1 that it, too, was disappointed "when technology will not permit a research and development program such as this to be completed within its original cost and schedule objectives." The reply stated "Our people have taken every precaution - gone to the extreme, perhaps, in its impact on cost and schedule - to achieve the required mission reliability. . . ." The letter concluded by expressing pleasure in the harmony that had existed between Westinghouse and MSC personnel and by praising the performance of the Gemini rendezvous radar, holding it up as an objective for excellence of performance for the lunar television camera.
MSC Director Robert R. Gilruth requested of Jet Propulsion Laboratory Director William H. Pickering that JPL fire the Surveyor spacecraft's vernier engine after the Surveyor landed on moon, to give insight into how much erosion could be expected from an LM landing. The LM descent engine was to operate until it was about one nozzle diameter from landing on the lunar surface; after the Surveyor landed, its engine would be about the same distance from the surface. Gilruth told Pickering that LaRC was testing a reaction control engine to establish surface shear pressure forces, surface pressures, and back pressure sources, and offered JPL that data when obtained.
NASA informed four firms that had completed design studies on the Apollo experiment pallet that there would be no hardware development and fabrication of the pallet. The four firms had been selected in November 1965 to make four-month studies of a pallet to carry experiments in the spacecraft SM during the Apollo manned lunar landings. The firms were Lockheed Missiles and Space Co., Sunnyvale, Calif.; The Martin Co., Denver, Colo.; McDonnell Aircraft Corp., St. Louis, Mo.; and Northrop Space Laboratories, Hawthorne, Calif.
The unmanned suborbital Apollo-Saturn 202 mission was successfully flown - the third Saturn IB flight test and the second CM heatshield flight test. The 202 included an uprated Saturn I (Saturn IB) launch vehicle (S-IB stage, S-IVB stage, and instrument unit) and the Apollo 011 spacecraft (spacecraft-lunar module adapter, service module, command module, and launch escape system). Liftoff was from Launch Complex 34 at Cape Kennedy at 1:15 p.m. EDT. The command module landed safely in the southwest Pacific Ocean, near Wake Island 1 hour 33 minutes after liftoff. It was recovered by the U.S.S. Hornet about 370 kilometers uprange from the recovery ship (16.07 N 168.54 E).
The Bethpage RASPO Business Manager and Grumman representatives met to choose a vendor to produce the orbital rate drive electronics for Apollo and LM (ORDEAL). Three proposals were received: Arma Division of American Bosch Arma Corp., $275,000; Kearfott Products Division of General Precision, Inc., $295,000; and Bendix Corp., $715,000. Kearfott's proposal was evaluated as offering a more desirable weight, more certain delivery, and smaller size within the power budget and consequently was selected although it was not the low bid. Evaluators believed that Arma's approach would not be easy to implement, that its delivery schedule was unrealistic, and that its proposal lacked a definite work statement in the areas of testing, quality control, reliability, and documentation.
Because of the reported NASA OMSF rejection of funding responsibility for prototyping and equipping the Lunar Receiving Laboratory (LRL) and the strong NASA Office of Space Science and Applications concern over the quarantine facilities and techniques, Craig K. Peper of OSSA suggested that
MSC's Flight Crew Support Division prepared an operations plan describing division support of flight experiments. Activities planned would give operational support to both flight crew and experimenters. Crew training, procedures development, and integration, mission-time support, and postmission debriefings were discussed in detail.
Because the Apollo Mission Simulator (AMS) was one of the pacing items in the Apollo Block II flight program, a critical constraint upon operational readiness was the availability of Government-furnished equipment (GFE) to the AMS contractor, General Precision's Link Group. For that reason MSC ASPO Manager Joseph F. Shea asked A. L. Brady, Chief of the Apollo Mission Simulator Office, to establish controls to ensure that GFE items were provided to Link in time to support the program. He requested that an individual be appointed to be responsible for each item and that a weekly report on the status be submitted on each item.
MSC Director of Flight Crew Operations Donald K. Slayton informed ASPO Manager Joseph F. Shea that total management during thermal vacuum testing of spacecraft 008 was inadequate, resulting in misunderstandings between personnel and organizational groups concerned with the test. Slayton offered a number of suggestions for future, similar tests:
In response to a query from NASA Deputy Administrator Robert C. Seamans, Jr., Associate Administrator for Space Science and Applications Homer E. Newell said that no laboratories had been selected for receiving lunar materials but proposals had been solicited and were in process of review. Newell said the lunar samples fell under the planetary and planetary biology disciplines primarily. The Planetary Biology Subcommittee of the Space Science Steering Committee had four working groups evaluating the proposals geophysics, geochemistry, geology, and Lunar Receiving Laboratory (LRL). The working groups were expected to complete their evaluations in September and, following review by the program office, recommendations would be prepared for the Space Science Steering Committee. Following appropriate review by that Committee, Newell would select the Principal Investigators for approved experiments.
Funding for the analyses could be determined only after selections had been made, but budget estimates for that purpose had been made for $2 million in FY 1968 and $6 million in FY 1969, exclusive of laboratory upgrading and funding of the LRL. As a part of the continuing research effort, 33 laboratories had received support during 1966 for upgrading their ability to handle and examine lunar material. Newell added that 125 proposals for handling lunar material had been received and were under review.
MSC Deputy Director George M. Low submitted information to NASA Associate Administrator for Manned Space Flight George E. Mueller on manpower requirements and operating costs for testing in MSC's large thermal vacuum chamber. Spacecraft 008 testing reflected a manpower cost (civil service and contractor) of $7,034,000, chamber operating cost of $321,000, and material costs of $277,000. The spacecraft had been in the chamber 83 days, during which time a 92-hour unmanned test and a 163-hour manned test had been conducted.
NASA awarded a $4.2-million contract to Honeywell, Inc., Computer Control Division, Framingham, Mass., to provide digital computer systems for Apollo command and lunar module simulators. Under the fixed-price contract, Honeywell would provide six separate computer complexes to support the Apollo simulators at MSC and Cape Kennedy. The complexes would be delivered, installed, and checked out by Honeywell by the end of March 1967.
A Planning Coordination Steering Group at NASA Hq. received program options from working groups established to coordinate long-range planning in life sciences, earth-oriented applications, astronomy, lunar exploration, and planetary exploration. The Steering Group recommended serious consideration be given a four-phase exploration program using unmanned Lunar Orbiters, Surveyors, and manned lunar surface exploration.
MSC ASPO Manager Joseph F. Shea wrote Grumman Aircraft Engineering Corp. Senior Vice President George F. Titterton that he was encouraged by the good start Grumman had made on work packages for the LM program, which he hoped had set the stage for effective action to curtail the creeping cost escalation that had characterized the program during the past year. He said: "To me, the most striking point noted in engineering activities projected a relatively high change rate from vehicle to vehicle, even though the program logic calls for identical vehicles from LM 4 on, and minimum change from LM 3 to LM 4. This, too, was apparent in the engineering related activities. The only changes which should be planned for are those rising from hardware deficiencies found in ground or flight test, or those resulting from NASA directed changes."
Shea had written to Joseph G. Gavin, Jr., Grumman Vice President and LEM Program Manager, in April concerning cost escalation. He had said "A significant amount of the planning for your contract is based upon management commitments made to us by Grumman . . . (and) your estimates have helped significantly (and indeed are still changing) and currently significantly exceed the amounts upon which our budget has been based." In another letter, in September, to Grumman President L. J. Evans, Shea remarked: "The result of our fiscal review with your people last week was somewhat encouraging. It reconfirmed my conviction that Grumman can do the program without the cost increases which you have been recently indicating, and, depending on how much difficulty we have with the qualification of our flight systems, perhaps even with some additional cost reduction."
In a November letter to Titterton, Shea again referred to work packages and reaffirmed that permission to exceed approved monthly levels should be granted only by the LM Program Office. He said, "Unless this discipline is enforced throughout the Grumman in-house and subcontract structure, the work packages could turn out to be interesting pieces of paper which contain the information as to what might have been done, rather than the basis for program management."
NASA Hq. informed MSC that the second phase of the vacuum system in the Lunar Receiving Laboratory ($480,200) was to be deferred because of the austerity of the NASA FY 1967 program. MSC was instructed, however, that sufficient redundancy in the central vacuum pumping systems should be provided to ensure the highest degree of reliability.
The second planned manned Apollo flight crew was named by NASA. Prime crew members were Walter M. Schirra, Jr., command pilot; Donn F. Eisele, senior pilot; and R. Walter Cunningham, pilot. Backup crewmen were Frank Borman, command pilot; Thomas P. Stafford, senior pilot; and Michael Collins, pilot. The flight was scheduled for 1967. It would be the first space mission for Eisele and Cunningham.
The second manned Apollo mission was planned as an open-ended earth orbital mission up to 14 days. Increased emphasis on scientific experiments as well as repeating some activities from the first planned manned flight would characterize the mission. (The first planned manned Apollo mission was ended by a tragic accident during a test January 27, 1967.)
LM test model TM-6 and test article LTA-10 were shipped from Grumman on the Pregnant Guppy aircraft. When the Guppy carrying the LTA-10 stopped at Dover, Del., for refueling, a fire broke out inside the aircraft, but it was discovered in time to prevent damage to the LM test article.
MSC Director Robert R. Gilruth told Langley Research Center Director Floyd Thompson, "Lunar Orbiter I has made significant contributions to the Apollo program and to lunar science in general. Details visible for the first time in Orbiter I photographs will certainly add to our knowledge of the lunar surface and improve our confidence in the success of the Apollo landing.
"Screening teams . . . are studying the photographs as they become available at the Lunar Orbiter Project Office, Langley Research Center. Several promising areas for Apollo landing sites have been studied here in Houston by the screening teams and will be studied in more detail later. This preliminary study has already influenced the selection of sites to be photographed on the next Orbiter mission. . . ."
NASA Associate Administrator for Manned Space Flight George E. Mueller, at the conclusion of the AS-204 Design Certification Review (DCR), requested each NASA manager to reexamine his stages, modules, systems, and subsystems upon substantial completion of the review's closeout actions and to file an updated certification statement to the Design Certification Board.
On November 16, Apollo Program Director Samuel C. Phillips asked ASPO Manager Joseph F. Shea to submit the updated certification statements and supporting data to him by December 14 to permit him to submit the statements and his affirmation to the Board before the December 20 Manned Space Flight Review. He pointed out that each certification statement should affirm:
In a memorandum to the NASA Deputy Administrator, Associate Administrator for Manned Space Flight George E. Mueller commented on the AS-202 impact error. Mueller said the trajectory of the August 25 AS-202 mission was essentially as planned except that the command module touched down about 370 kilometers short of the planned impact point.
NASA reiterated its intention of examining the question of tracking ship Vanguard support for the AS-204 mission in the South Pacific as soon as mission plans were resolved. It informed the Department of Defense Manager for Manned Space Flight Support Operations, the Navy Deputy Commander for Ship Acquisitions, and Goddard Space Flight Center that plans could not be completed for the support of AS-205 at the time but, should the services of the Vanguard be required,an Atlantic Ocean location would be acceptable. NASA also expressed concern about the late delivery forecast for the Redstone and the Mercury tracking ships and requested top management attention within government, contractor, and subcontractor organizations be directed to the problems and that a special effort be made to accelerate delivery.
Apollo Program Director Samuel C. Phillips was informed of increasing engineering orders for spacecraft 012. C. H. Bolender, OMSF Mission Operations Deputy Director, reported information received from John G. Shinkle, Kennedy Space Center Apollo Program Manager, on October 10. At the time of spacecraft shipment to Cape Kennedy on August 25, 164 engineering orders were identified as open work, although the data package appeared to identify only 126. These orders were covered by 32 master change records, which reportedly were the documentation approved by the MSC Change Control Board rather than by individual engineering orders. By September 24, engineering orders totaled 377 - 213 more than on August 25 - and the master change records had increased to 77. KSC estimated that some 150 of the 213 additional orders should have been identifiable within North American Aviation at the time of the Customer Acceptance Readiness Review. Bolender said that, if this were true, North American Aviation should be asked to provide better visibility for CSM changes that would be sent to the Cape for installation at the time of the review.
MSC Apollo Spacecraft Program Office Manager Joseph F. Shea reported that LM-1 would no longer be capable of both manned and unmanned flight and that it would be configured and checked out for unmanned flight only. In addition, LM-2 would no longer be capable of completely unmanned flight, but would be configured and checked out for partially manned flights, such as the planned AS-278A mission (with unmanned final depletion burn of the ascent stage) and AS-278B (with all main propulsions unmanned).
Apollo Program Director Samuel C. Phillips told Mark E. Bradley, Vice President and Assistant to the President of The Garrett Corp., that "the environment control unit, developed and produced by Garrett's AiResearch Division under subcontract to North American Aviation for the Apollo spacecraft was again in serious trouble and threatened a major delay in the first flight of Apollo."
KSC proposed to MSC Director Robert R. Gilruth that the two General Electric Co. efforts at KSC supporting automatic checkout equipment (ACE) for spacecraft operations be consolidated. KSC pointed out there was a supplemental agreement with MSC for General Electric to provide system engineering support to ACE/spacecraft operations. Both the KSC Apollo Program Manager and the Director of Launch Operations considered that merging the two GE efforts into a single task order under KSC administrative control would have advantages. The proposal listed two:
Apollo-Saturn 204 was to be the first manned Apollo mission, NASA announced through the manned space flight Centers. The news release, prepared at NASA Hq., said the decision had been made following a Design Certification Review Board meeting held the previous week at OMSF. The launch date had not been determined. Crewmen for the flight would be Virgil I. Grissom, command pilot; Edward H. White II, senior pilot; and Roger B. Chaffee, pilot. The backup crew would be James A. McDivitt, command pilot; David R. Scott, senior pilot; and Russell L. Schweickart, pilot. The AS-204 spacecraft would be launched by an uprated Saturn I launch vehicle on its earth-orbital mission "to demonstrate spacecraft and crew operations and evaluate spacecraft hardware performance in earth orbit."
Marshall Space Flight Center Director Wernher von Braun wrote MSC Director Robert R. Gilruth that MSFC had spent a considerable effort in planning the transfer of study and development tasks in the lunar exploration program to MSC. Von Braun said, "We feel it is in the spirit of the MSF Hideaway Management Council Meeting held on August 13-15, 1966, to consider the majority of our Lunar Exploration Work Program for transfer to MSC in consonance with Bob Seamans' directive which designates MSC as the Lead Center for lunar science." He added that MSFC had formulated a proposal which it felt was in agreement with the directives and at the same time provided for management interfaces between the two Centers without difficulty.
Briefly MSFC proposed to transfer to MSC:
Von Braun said that Ernst Stuhlinger of the Research Projects Laboratory had discussed the proposed actions for transfer of functions to MSC, and MSC Experiments Program Manager Robert O. Piland had indicated his general agreement, pending further consideration. He asked that Gilruth give his reaction to the proposal and said, "It would be very helpful if our two Centers could present a proposal to George Mueller (OMSF) on which we both agree."
MSC's ASPO Manager Joseph F. Shea proposed to KSC Apollo Program Manager John G. Shinkle that - because the program was moving into the flight phase and close monitoring of the hardware configuration was important - they should plan work methods in more detail. He reminded Shinkle that he had named Walter Kapryan Assistant Program Manager "to provide the technical focal point . . . to maintain the discipline for the total spacecraft"; therefore Shea would like to transfer the chairman of the Apollo Configuration Control Panel from Shinkle's organization to Kapryan effective Nov. 1, 1966.
Langley Research Center informed MSC that the Apollo Visibility Study requested by MSC would be conducted. Langley mockups could be used along with an SLA panel to be provided by MSC from Tulsa North American. The proposed study would be semistatic, with the astronaut seated in the existing CM mockup and viewing the S-IVB/SLA mockup. The positions of the mockups would be varied manually by repositioning the mockup dollies, and the astronaut would judge the separation distance and alignment attitude. The study was expected to start at the end of October or early November and last two or three weeks.
MSC established a committee to investigate several nearly catastrophic malfunctions in the steam generation system at the White Sands Test Facility. The system was used to pump down altitude cells in LM propulsion system development. Committee members were Joseph G. Thibodaux, chairman; Hugh D. White, secretary; Harry Byington, Henry O. Pohl, Robert W. Polifka, and Allen H. Watkins, all of MSC.
Propellant tanks of service module 017 failed during a pressure test at North American Aviation, Downey, Calif. The planned test included several pressure cycles followed by a 48-hour test of the tanks at the maximum operating pressure of 165 newtons per square centimeter (240 pounds per square inch). Normal operating pressure was 120 newtons per square centimeter (175 pounds per square inch). After 1 hour 40 minutes at 165 newtons the failure occurred.
SM 017 (designed for SA-501) had been pulled for this test after cracks had been detected in the tanks of SM 101. SM 017 had been previously proof-tested a short time (a matter of minutes) at 220 newtons per square centimeter (320 pounds per square inch).
A team was set up at North American Aviation to look into the failure and its possible impact on the Saturn IB and Saturn V Apollo missions. MSC had two observers on the team, which was to make its findings and recommendations available by November 4.
North American Aviation identified the problem as stress-corrosion cracking resulting from use of methanol as a test liquid at pressures causing above threshold stresses. No tanks subjected to methanol at high stress levels would be used. Freon and isopropyl alcohol, respectively, were recommended for test fluids in the oxidizer and fuel systems, with the stipulation that the equipment had not previously seen propellant and would receive a hot gaseous nitrogen purge after completion of the cold flow operation.
Owen E. Maynard, Chief of the MSC Missions Operations Division, said the flight operations plan had proposed communication constraints be resolved by reducing the accessible landing area on the lunar surface to a region permitting continuous communication with no restriction on vehicle attitude during descent and ascent. Maynard said, "Such a proposal is not acceptable." Contending interests were the desire to maintain communications in the early part of the descent powered flight and to avoid the definition of attitude restrictions in this region.
Acknowledging that both of these were desirable objectives, Maynard said that mission planning should be based on access to previously defined Apollo zones of interest and to designated sites within those zones with vehicle attitude maneuvers to provide communications when required.
NASA Apollo Program Director Samuel C. Phillips indicated his concern to MSC over the extensive damage to a number of fuel cell modules from operational errors during integrated system testing. Phillips pointed out that in addition to the added cost there was a possible impact on the success of the flight program. He emphasized the importance of standardizing the procedures for fuel cell activation and shutdown at North American Aviation, MSC, and KSC to maximize learning opportunities.
NASA Associate Administrator for Manned Space Flight George E. Mueller reported on technical feasibility and cost tradeoffs of real-time television coverage of Apollo missions. Deputy Administrator Robert C. Seamans, Jr., had requested an evaluation during a July 8 program review. Highlights of the report were:
Perkin-Elmer Corp., Norwalk, Conn., and Chrysler Corp., Detroit, Mich., were authorized about $250,000 each to continue studies of optical technology for NASA. The nine-month extension of research by the two companies was to evaluate optical experiments for possible future extended Apollo flights. The proposed experiments included control of optical telescope primary mirrors, telescope temperature control, telescope pointing, and laser propagation studies.
MSC was requested by NASA Hq. to take the following actions:
MSC's Director of Flight Crew Operations Donald K. Slayton said that the Block I flight crew nomenclature was suitable for the AS-204 mission, but that a more descriptive designation was desirable for Block II flights. Block I crewmen had been called command pilot, senior pilot, and pilot. Slayton proposed that for the Block II missions the following designations and positions be used: commander, left seat at launch with center seat optional for the remainder of the CSM mission, and left seat in the LM; CSM pilot, center seat at launch with left seat optional for remainder of mission; and LM pilot in the right seat of both the CSM and LM.
In response to a request from Apollo Program Director Samuel C. Phillips on November 21, MSC reported its evaluation of Atlantic versus Pacific Ocean prime recovery areas for all Saturn V Apollo missions. MSC said that a change of recovery area to the Atlantic for AS-501 and AS-502 would cause some schedule slip and compromise of mission objectives and would not necessarily save recovery ship effort. For AS-503 and similar nonlunar missions, adjustments could be made to the mission profile to result in a prime recovery in the Atlantic area. Secondary support would be necessary in the Pacific, however. The report stressed that confining recovery to the Atlantic area for lunar missions would severely curtail the number of launch windows available.
In a December 30 letter to MSC, KSC, and MSFC, the Apollo Program Director referred to the study and said it had been determined that plans for Pacific recovery for the AS-501 and AS-502 missions were justified.
During reassembly of LM Simulator (LMS) 1 at Houston, MSC personnel discovered that the digital-to-analog conversion equipment was not the unit used during the preship tests at Binghamton, N.Y.; it was apparent the unit had never been checked out, because at least five power-buss bars were missing. The unit had not checked out in the preship tests, and at the simulator readiness review test on October 14 Grumman had been authorized to replace the defective digital-to-analog core memory after the unit arrived at Houston. MSC questioned whether the delivery requirement of LMS-1 had been met and asked Grumman to explain why the switch was made without MSC knowledge and what steps Grumman expected to take to correct the situation.
MSC Director of Flight Crew Operations Donald K. Slayton pointed out to ASPO Manager Joseph F. Shea that LM-to-CSM crew rescue was impossible. Slayton said
Langley Research Center reported on its November study of visibility from the CSM during extraction of the LM from the S-IVB stage. The study had been made in support of the AS-207/208A mission, with assistance of MSC and North American Aviation personnel, to
In a memo to Apollo Program Director Samuel C. Phillips, Associate Administrator for Manned Space Flight George E. Mueller approved assignment of experiment S068, Lunar Meteoroid Detection, to the Apollo Program Office for implementation, provided adequate funding could be identified in the light of relative priority in the total science program. The experiment had been recommended by the Manned Space Flight Experiment Board (MSFEB) for a lunar mission. Also, as recommended by the MSFEB, the following experiments would be placed on the earliest possible manned space flight: S015 (Zero g, Single Human Cells); S017 (Trapped Particles Asymmetry); S018 (Micrometeorite Collection); and T004 (Frog Otolith Function).
Associate Administrator for Manned Space Flight George E. Mueller requested Leonard Reiffel, NASA Hq., "to be thinking about an appropriate name for the Lunar Receiving Laboratory - a descriptive kind of name rather than one that doesn't signify exactly what it is."
The number one lunar landing research vehicle (LLRV) test vehicle was received at MSC December 13, 1966. Its first flight at Ellington Air Force Base following facility and vehicle checkout was expected about February 1, 1967, with crew training in the vehicle to start about February 20.
MSC Director of Administration Wesley L. Hjornevik informed NASA Hq. that Frank Smith had told him on December 14 of his meeting with NASA management on Lunar Receiving Laboratory plans. Smith advised that MSC should take necessary actions immediately to begin operation of the LRL. MSC advised Headquarters that it planned to expand one of the two facility operation contracts at MSC to include the LRL and designate an LRL organization, staffed with qualified civil service personnel for immediate full-time operation.
A meeting at NASA Hq. discussed plans for the Lunar Receiving laboratory, noting that some problems were time-critical and needed immediate attention. Attending were Robert C. Seamans, Jr., Willis B. Shapley, George E. Mueller, Homer E. Newell, and Francis B. Smith, all of NASA Hq.; and Robert R. Gilruth, George M. Low, and Wesley L. Hjornevik of MSC.
The group agreed on the following interim actions:
NASA announced crew selection for the second and third manned Apollo missions. Prime crew for AS-205/208 would be James A. McDivitt, commander; David R. Scott, CM pilot; and Russell L. Schweickart, LM pilot. The backup crew would be Thomas P. Stafford, commander; John W . Young, CM pilot; and Eugene A. Cernan, LM pilot. The crew for AS-503, the first manned mission to be launched by a Saturn V, would be Frank Borman, commander; Michael Collins, CM pilot; and William A. Anders, LM pilot. The backup crew would be Charles Conrad, Jr., commander; Richard F. Gordon, Jr., CM pilot; and Clifton C. Williams, Jr., LM pilot.
In a memo to Donald K. Slayton, MSC Deputy Director George M. Low indicated that he understood George E. Mueller had stated in executive session of the Management Council on December 21 that he had decided a third lunar module simulator would not be required. Low said, "This implies that either the launch schedule will be relieved or missions will be so identical that trainer change-over time will be substantially reduced."
Lewis L. McNair, MSFC Chairman of the Flight Mechanics Panel, told Calvin H. Perrine, Jr., MSC, that the Guidance and Performance Sub-Panel had been unable to reach an agreement on venting the liquid-oxygen (LOX) tank of the Saturn V S-IVB stage during earth parking orbit. McNair pointed out that MSFC did not want a programmed LOX vent and that MSC did. He added that the issue must be resolved in order to finalize the AS-501 attitude maneuver and venting timeline.
NASA Administrator James E. Webb approved establishment of a Science and Applications Directorate at MSC. The new directorate would plan and implement MSC programs in space science and its applications, act as a focal point for all MSC elements in these programs, and serve as the Center's point of contact with the scientific community. In addition to the Director's office, the new directorate would encompass an Advanced Systems Office, Lunar Surface Project Office, Space Physics Division, Applications Plans and Analysis Office, Applications Project Office, Lunar and Earth Sciences Division, and Test and Operations Office. In a letter on January 17, 1967, NASA Associate Administrator George E. Mueller told MSC Director Robert R. Gilruth the new Directorate was "another significant milestone in your effort to support the Agency and the scientific community in the exploration of space. . . ."
Handling and installation responsibilities for the LM descent stage scientific equipment (SEQ) were defined in a letter from MSC to Grumman Aircraft Engineering Corp. The descent stage SEQ was composed of three basic packages:
Donald K. Slayton said there was some question about including extravehicular activity on the AS-503 mission, but he felt that, to make a maximum contribution to the lunar mission, one period of EVA should be included. Slayton pointed out that during the coast period (simulating lunar orbit) in the current flight plan the EVA opportunity appeared best between hour 90 and hour 100. Two primary propulsion system firings would have been accomplished and the descent stage of the LM would still be attached.
Slayton specified that EVA should consist of a crewman exiting through the LM forward hatch and making a thorough orbital check of the LM before reentering through the same hatch. He said EVA on AS-503 would provide:
Homer E. Newell, NASA Associate Administrator for Space Science and Applications, pointed out to MSC Director Robert R. Gilruth that during a program review he was made aware of difficulties in the development of the Apollo Lunar Surface Experiments Package. The problems cited were with the lunar surface magnetometer, suprathermal ion detector, passive seismometer, and the central station transmitter receiver. Newell, who had been briefed on the problems by NASA Hq. ALSEP Program Manager, W. T. O'Bryant, said: "I felt they were serious enough to warrant giving you my views in regard to the importance of having the ALSEP with its planned complement of instruments aboard the first Apollo lunar landing mission. It is essential that basic magnetic measurements be made on the lunar surface, not only for their very important planetological implications, but also for the knowledge which will be gained of the lunar magnetosphere and atmosphere as the result of the combined measurements from the magnetometer, solar wind spectrometer, and suprathermal ion detector."
MSC Deputy Director George M. Low, in a January 10 letter to Newell, thanked him and said he would discuss the problems with Newell more fully after receiving a complete review of the ALSEP program from Robert O. Piland.
Low wrote Newell on April 10, 1967, that there had been schedule slips in the program plan devised in March 1966 - primarily slips associated with the lunar surface magnetometer, the suprathermal ion detector, and the central station receiver and transmitter. "In each case, we have effected a programmatic workaround plan, the elements of which were presented to Leonard Reiffel of OMSF and William O'Bryant of your staff on December 5, 1966, and in subsequent reviews of the subject with them as the planning and implementation progressed. . . ."
B. Kaskey, Bellcomm, Inc., gave NASA Apollo Program Director Samuel C. Phillips three reasons why an AS-204 rescue of or rendezvous with a biosatellite would be impracticable:
Charles A. Berry, MSC Director of Medical Research and Operations, proposed establishment of an MSC management program for control of hazardous spacecraft materials, to provide confidence for upcoming long- duration Apollo missions while simultaneously saving overall costs. Berry pointed out that no unified program for control of potentially toxic or flammable spacecraft materials existed and, in the past, individual Program Offices had established their own acceptance criteria for toxological safety and fire hazards.
An MSC meeting selected a Flight Operations Directorate position on basic factors of the first lunar landing mission phase and initiated a plan by which the Directorate would inform other organizations of the factors and the operational capabilities of combining them into alternate lunar surface mission plans.
Flight Operations Director Christopher C. Kraft, Jr., conducted the discussion, with Rodney G. Rose, Carl Kovitz, Morris V. Jenkins, William E. Platt, James E. Hannigan, Bruce H. Walton, and William L. Davidson participating.
The major factors (philosophy) identified at the meeting were:
Director of Flight Crew Operations Directorate (FCOD) Donald K. Slayton discussed the 2TV-1 (thermal vacuum test article) manned test program in a letter to the ASPO Manager. Pointing out that FCOD was providing an astronaut crew for the vacuum test program in support of the AS-258 mission, Slayton said the FCOD objective was to test and evaluate crew equipment, stowage, and system operations procedures planned for Block II flights. Slayton acknowledged that this objective was not identical with ASPO's requirement for thermal and vacuum verification of integrated system design, but felt that it was of equal importance and should be given equal priority in planning the test. To achieve the FCOD objective, he requested that specific conditions be met in spacecraft configuration, test planning, and test conduct.
Apollo Program Director Samuel C. Phillips told NASA Associate Administrator for Manned Space Flight George E. Mueller that studies had been completed on the use of "direct translunar injection" (launch directly into a trajectory to the moon) as a mode of operation for lunar landing missions. The principal advantages would be potential payload increases and elimination of the S-IVB stage restart requirement. The disadvantage was that there would be no usable launch windows for about half of each year and a reduced number of windows for the remainder of the year. Phillips was confident the launch vehicle would have adequate payload capability, since Saturn V performance continued to exceed spacecraft requirements. Confidence in successful S-IVB restarts was also high. For the lunar missions, therefore, direct launch was considered as a fall-back position and the effort was concentrating on the parking orbit mode.
The NASA Western Support Office, Santa Monica, Calif., reported two accidents at North American plants, with no personal injuries:
Testing of CSM 012 at Downey, Calif., and KSC revealed numerous failures in the communications cable assembly caused by broken wiring, bent pins, and connector malfunctions. Certain design deficiencies in the system had been remedied by adding adapter cables in series with the cobra cable, but these additions had resulted in additional weak points in the system and in an unacceptably cumbersome cable assembly connected to crew members. For these reasons, Donald K. Slayton, Director of Flight Crew Operations, ruled the existing communications assembly unsafe for flight and requested that the biomedical tee adapter, cobra cable, sleep adapter, and noise eliminator be combined into one new cobra cable for CSM 012.
The Saturn 503 S-IVB stage exploded and was destroyed at the Douglas Sacramento, Calif., Test Facility at 4:25 p.m. PST during a countdown. The exercise had progressed to 10 seconds before simulated launch (about 8 minutes before S-IVB ignition) when the explosion occurred.
The Lunar Mission Planning Board held its first meeting at MSC. Present, in addition to Chairman Robert R. Gilruth, were Charles A. Berry, Maxime A. Faget, George M. Low, Robert O. Piland, Wesley L. Hjornevik, and acting secretary William E. Stoney, Jr., all of MSC. Principal subject of discussion was the photography obtained by Lunar Orbiter I and Lunar Orbiter II and application of this photography to Apollo site selection. The material was presented by John Eggleston and Owen Maynard, both of MSC. Orbiter I had obtained medium-resolution photography of sites on the southern half of the Apollo area of interest; Orbiter II had obtained both medium- and high-resolution photographs of sites toward the northern half of the area. Several action items were assigned, with progress to be reported at the next meeting, including a definition of requirements for a TV landing aid for the lunar module and a report on landing-site-selection restraints based on data available from Lunar Orbiter I and II only, and another on data from Lunar Orbiter I, II, and III.
Apollo Program Director Samuel C. Phillips sent a message to the manned space flight Centers indicating that he wanted to supplement the findings of the S-IVB Accident Investigation Board with a review by the Crew Safety Panel of the possible impact on manned Apollo flights. He requested Crew Safety Panel members and any other necessary crew safety representatives to go to Sacramento, Calif., immediately, review the 20 January accident, and answer a number of questions:
Fire sweeping through command module 012 atop its Saturn IB launch vehicle at Launch Complex 34, KSC, took the lives of the three-man crew scheduled for the first manned Apollo space flight.
ASPO Manager Joseph F. Shea sent a flash report to NASA Hq.: "During a simulated countdown for mission AS-204 on January 27, 1967, an accident occurred in CM 012. This was a manned test with the prime astronaut crew on board. A fire occurred inside the command module resulting in the death of the three astronauts and as yet undetermined damage to the command and service modules." The launch had been scheduled for February 21.
The Director, Armed Forces Institute of Pathology in Washington, was alerted during late evening and informed that the accident had taken the lives of astronauts Virgil I. Grissom, Edward H. White II, and Roger B. Chaffee.
Later that evening a request for autopsy support was received and three pathologists and a medical photographer were sent to Cape Kennedy on an Air Force aircraft. Team members were Col. Edward H. Johnston, USA; Cdr. Charles J. Stahl, USN; Capt. Latimer E. Dunn, USAF; and T/Sgt Larry N. Hale, USAF.
The postmortem examinations began at 11 a.m. January 28 at the USAF Bioastronautic Operational Support Unit and were completed at 1 a.m. the following day.
The first manned flight of the Apollo CSM, the Apollo C category mission, was planned for the last quarter of 1966. Numerous problems with the Apollo Block I spacecraft resulted in a flight delay to February 1967. The crew of Virgil I. Grissom, Edward H. White II, and Roger B. Chaffee, was killed in a fire while testing their capsule on the pad on 27 January 1967, still weeks away from launch. The designation AS-204 was used by NASA for the flight at the time; the designation Apollo 1 was applied retroactively at the request of Grissom's widow.
Representatives of 62 nations signed the space law treaty, "Treaty on Principles Covering the Activities of the States in the Exploration and Use of Outer Space, Including the Moon and Other Celestial Bodies," at separate ceremonies in Washington, London, and Moscow. The treaty, which limited military activities in space, had been agreed upon by the U.S. and U.S.S.R. December 8, 1966, and unanimously approved by the United Nations General Assembly December 19. It was to become effective when ratified by the U.S., U.S.S.R., United Kingdom, and two other countries.
The Chairman and several members of the Apollo 204 Review Board assembled at KSC and met with NASA Deputy Administrator Robert C. Seamans, Jr., Apollo Program Director Samuel C. Phillips, and other personnel from NASA Hq., KSC, and MSC. The officials were given a quick appraisal of circumstances surrounding the January 27 accident and actions taken after the fire. The meeting was followed by an initial general session of the Board in the Mission Briefing Room, an area assigned to the Board to conduct its business. The Board adjourned to visit the scene of the accident, Launch Complex 34, and then reconvened to plan the review.
The Apollo 204 Review Board was established by NASA's Deputy Administrator Robert C. Seamans, Jr., to investigate the Apollo 204 accident that had killed the 204 prime crew January 27. The Board would report to the NASA Administrator.
Astronaut Frank Borman briefed the Apollo 204 Review Board after his inspection of the damaged command and service modules. A main purpose of the inspection was to verify the position of circuit breakers and switches. In other major activities that day, the Pyrotechnic Installation Building was assigned to the Board to display the debris and spacecraft components after removal from Launch Complex 34; the Board began interviewing witnesses; and the Board Chairman asked NASA Associate Administrator for Manned Space Flight George E. Mueller for assistance in obtaining flame propagation experts to assist the Board. Experts might be obtained from Lewis Research Center, the Bureau of Mines, and the Federal Aviation Agency. The Board Chairman established an ad hoc committee to organize task panels to make the accident investigation systematically. The committee was composed of John J. Williams, KSC; E. Barton Geer, LaRC; Charles W. Mathews, NASA, Hq.; John F. Yardley, McDonnell Aircraft Corp.; George Jeffs, North American Aviation, Inc.; and Charles F. Strang, USAF.
Robert W. Van Dolah of the Bureau of Mines, I. Irving Pinkel of Lewis Research Center, and Thomas G. Horeff of the Federal Aviation Agency joined the Apollo 204 Review Board as consultants. Membership of the special ad hoc committee established January 29 to recommend special panels for the investigation was changed to Frank Borman and Maxime A. Faget, both of MSC; Charles W. Mathews, NASA Hq.; George Jeffs, North American Aviation, Inc.; John F. Yardley, McDonnell Aircraft Corp.; and John J. Williams, KSC, Chairman. Mathews outlined 19 recommended panels and the work objectives of each. A Board member was assigned to monitor each panel and to serve as a focal point through which the panels would report to the Board. Lt. Col. James W. Rawers (USAF) of the Range Safety Division Analysis Section presented an oral report on what Air Force Eastern Test Range personnel saw at the time of the accident. In other activities that day Faget introduced Alfred D. Mardel, MSC, who presented a briefing on data and sequence of events.
A TWX from NASA Headquarters to MSC, MSFC, and KSC ordered checkout and launch preparation of AS-501 to proceed as planned, except that the CM would not be pressurized in an oxygen environment pending further direction. If AS-501 support, facility, or work force should conflict with the activities of the AS-204 Review Board, the Board would be given priority.
Col. Charles F. Strang advised the Apollo 204 Review Board of an accident in an altitude chamber at Brooks Air Force Base, Tex., that morning. A flash fire had swept the oxygen-filled pressure chamber, killing Airman 2/C William F. Bartley, Jr., and Airman 3/C Richard G. Harmon. Col. Strang presented a short briefing on the circumstances and was asked by Chairman Floyd Thompson to provide follow-up information.
Lt. Col. William D. Baxter, Air Force Eastern Test Range representative to the Board, advised the group of existing Apollo spacecraft hazards, including:
In other actions on January 31, the Chairman of Panel 4, Disassembly Activities, briefed the Board on the Spacecraft Debris Removal Plan and the group approved the plan to the point of removing the astronauts' couches. In addition, Panel 19, Safety of Investigation Operations, was formed.
Funeral services were held for the Apollo crewmen who died in the January 27 spacecraft 012 (Apollo 204 mission) flash fire at Cape Kennedy. All three were buried with full military honors: Virgil I. Grissom (Lt. Col., USAF), and Roger B. Chaffee (Lt. Cdr., USN), in Arlington, Va., National Cemetery; and Edward H. White II (Lt. Col., USAF), at West Point, N.Y. Memorial services had been held in Houston January 29 and 30.
The task of removing the launch escape system from AS-204 was delayed until retrorockets and other ordnance devices could be removed from the launch vehicle and spacecraft.
Apollo 204 Review Board Chairman Floyd L. Thompson appointed a committee of two Board members and three consultants to coordinate panel activities and to bring to the attention of the Board the actions requiring specific approval. This Panel Coordinating Committee was required to present daily activity reports to the Board. Thompson announced that an executive session (Board members) would be held at 4 p.m. daily.
MSC management directed contractors and other government agencies to stop all MSC-related manned testing in environments with high oxygen content.
Command module 014 arrived from the North American Aviation plant in Downey, Calif., and was placed in the Pyrotechnic Installation Building at KSC. The module was to be used for training the technicians who would disassemble command module 012, the module in which the AS-204 fire had ignited. Before removal of any component from 012, the technicians were to perform similar tasks on 014, to become familiar with all actions required to remove any single component and minimize damage during removal. As a component was removed it was transported from the launch complex to the Pyrotechnic Installation Building. All equipment associated with the accident would also be placed in the PIB, including command module hardware and support equipment.
The Apollo 204 Review Board was informed that the most significant event in the investigation to date was the removal of the launch escape system from the command module, eliminating the greatest potential hazard to disassembly operations. With this task finished, members of the Fire Propagation Panel were expected to enter the command module the following day. Removal of the launch escape system also permitted extensive photographic coverage of the interior of the 012 command module.
Col. Charles F. Strang distributed copies of a status report of the January 31 accident at Brooks AFB, Tex., for the Board's information. NASA Deputy Administrator Robert C. Seamans attended the session.
MSC issued instructions to contractors and employees regarding release of information on any aspect of the AS-204 accident or investigation. The message said: "In accordance with the Apollo Failure Contingency Plan . . . and so this work may proceed rapidly and with complete integrity, all NASA and contractor employees are directed to refrain from discussing technical aspects of the accident outside of assigned working situations. This is meant to rule out accident discussion with other employees, family friends, neighbors and the like. All press information will be channeled through the Public Affairs Office.
The Apollo 204 Review Board Chairman requested that a document be written to establish procedures for entry into CM 012. Coordination of requirements and priorities would be controlled by the Panel Coordinating Committee, and entry into the CM by Frank Borman, MSC, or his delegated representative.
A display showing the sequence of events immediately preceding and following the accident was prepared from telemetry data and placed in the Mission Briefing Room. Time span of the display was from 6:30 p.m. to 6:33 p.m., January 27. Significant information was included on communications, instrumentation, electrical power, environmental control, guidance and navigation, and stabilization and control.
Borman reported that the debris removal plan approved by the Board was progressing satisfactorily and that the next phase would use protective plywood covers for the couches to permit detailed examination of the command module interior.
Homer Carhart, Chief of Fuels Research, Chemistry Division, Naval Research Laboratory, was assigned to the Fire Propagation Panel. Board Chairman Floyd Thompson made the following appointments as Representatives of the Board: C. H. Bolender and Charles W. Mathews, both of NASA Hq.; Joseph F. Shea and G. Fred Kelly, MSC; Rocco Petrone, KSC; and William D. Baxter, Air Force Eastern Test Range.
In memoranda for the Apollo 204 Review Board, NASA Deputy Administrator Seamans noted changes in the Board:
NASA Deputy Administrator Robert C. Seamans, Jr., reported to Administrator James E. Webb on progress of the Apollo 204 Review Board investigation of the January 27 spacecraft fire. Specific cause of the fire had not been determined from the preliminary review. Official death certificates for the three crew members listed cause of death as "asphyxiation due to smoke inhalation due to the fire." Webb released the report to Congress and the press.
Associate Administrator for Manned Space Flight George E. Mueller announced that the unmanned flights AS-206 (on uprated Saturn I) an AS-501 and AS-502 (first and second Saturn V launches) would proceed as scheduled in 1967. Manned flights were postponed indefinitely.
Apollo 204 Review Board Chairman Floyd L. Thompson established an Advisory Group to support the Board in its investigation. The group consisted of representatives, consultants, liaison officers, observers, and secretariat and would report to the Board Chairman.
Duties were defined as follows:
Charles W. Mathews, Director, Apollo Applications Program, NASA Hq.;
Rocco A. Petrone, Director, Launch Operations, KSC;
Joseph F. Shea, ASPO Manager, MSC;
Lt. Col. William D. Baxter, USAF, Chief, Range Safety Office, Air Force Eastern Test Range;
G. F. Kelly, Flight Medicine Branch, Center Medical Office, MSC.
John Yardley, Technical Director, Astronautics Co., Division of McDonnell Co.;
George W. Jeffs, Chief Engineer, Apollo Program, North American Aviation, Inc., or alternate R. L. Benner, Assistant Chief Engineer, Apollo Program, North American Aviation, Inc.;
Irving Pinkel, Chief, Fluid Systems Research Division, Lewis Research Center;
Thomas G. Horeff, Propulsion Program Manager, Engineering and Safety Division, Aircraft Development Service, Federal Aviation Agency;
Homer Carhart, Chief, Fuels Branch, Chemistry Division, Naval Research Laboratory;
John S. Leak, Chief, Technical Services, Engineering Division, Bureau of Safety, Civil Aeronautics Board.
Liaison Officer: Duncan Collins, Special Adviser, Secretary of the Air Force, Skylab Program.
John D. Hodge, MSC;
P. A. Butler, USAF;
W. Dugan, USAF;
George E. Mueller, NASA Hq.;
Samuel C. Phillips, NASA Hq.;
Kurt H. Debus, KSC;
Paul C. Donnelly, KSC;
John W. King, KSC;
H. E. McCoy, KSC;
R. E. Moser, KSC;
W. P. Murphy, KSC;
G. Merritt Preston, KSC;
J. G. Shinkle, KSC;
A. F. Siepert, KSC;
W. Williams, KSC.
Maxime Faget, MSC, distributed a draft report on the use of internal and external power on the command module for the information of the Apollo 204 Review Board.
Scott Simpkinson, MSC, Chairman of the Disassembly Activities Panel, presented the disassembly schedule. He expected removal of the couches from command module 012 by 5 a.m., followed by installation of the false floor by 12 noon on February 5. The false floor had previously been installed in command module 014 as a training exercise.
Frank Borman, MSC, was granted release of the impounded flight suits of the backup crew, for egress testing. The Board was to observe the test February 5. "Board Proceedings," p. 3-17.
Lt. Col. William D. Baxter, Air Force Eastern Test Range, reported to the Apollo 204 Review Board that copies of statements by 90 witnesses of the January 27 fire had been transcribed. George Jeffs of North American Aviation announced that an NAA and AiResearch team had arrived to inspect the 012 command module and to propose further action on the environmental control unit and system.
Col. Charles F. Strang, USAF, said Board Chairman Floyd Thompson had asked that the "Life Sciences" portion of the final report include an analysis of the escape system, with redesign recommendations. The system fell within the purview of the Ground Emergency Procedures Review Panel, the In-Flight Fire Emergency Provisions Review Panel, the Design Review Panel, and the Medical Analysis Panel. G. Fred Kelly, MSC, was asked to coordinate findings.
MSC Director Robert R. Gilruth asked LaRC Director Floyd Thompson to conduct a study at Langley to familiarize flight crews with CM active docking and to explore problems in CM recontact with the LM and also LM withdrawal. MSC would provide astronaut and pilot-engineer support for the study. Apollo Block II missions called for CM active docking with the LM and withdrawal of the LM from the S-IVB stage, requiring development of optimum techniques and procedures to ensure crew safety and to minimize propellant utilization. LM withdrawal was a critical area because of clearances, marginal flight crew visibility, and mission constraints. Previous simulations at LaRC indicated the possibility of using the Rendezvous Docking Simulator.
Floyd L. Thompson, Chairman of the Apollo 204 Review Board, formally established 21 task panels to support the investigation. He appointed a Board member as monitor for each panel.
Duties of the panels were to:
Panel No. | Panel Title | Panel Chairman | Board Monitor | ||||||||||||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1 | S/C and GSE Configuration | J. Goree, MSC | J. Williams, KSC | ||||||||||||||||||||||||||||||||||||||||
2 | Test Environments | W. Hoyler, MSC | G. White, NASA Hq. | ||||||||||||||||||||||||||||||||||||||||
3 | Sequence of Events | D. Arabian, MSC | M. Faget, MSC | ||||||||||||||||||||||||||||||||||||||||
4 | Disassembly Activities | S. Simpkinson, MSC | F. Borman, MSC | ||||||||||||||||||||||||||||||||||||||||
5 | Origin & Propagation of Fire | F. Bailey, MSC | R. Van Dolah | ||||||||||||||||||||||||||||||||||||||||
6 | Historical Data | T. J. Adams, MSC | G. White, NASA Hq. | ||||||||||||||||||||||||||||||||||||||||
7 | Test Procedures Review | D. Nichols, KSC | J. Williams, KSC | ||||||||||||||||||||||||||||||||||||||||
8 | Materials Review | W. Bland, MSC | M. Faget, MSC | ||||||||||||||||||||||||||||||||||||||||
9 | Design Reviews | R. Williams, MSC | G. White, NASA Hq. | 10 | Analysis of Fracture Areas | P. Glynn, MSC | B. Geer, LaRC | ||||||||||||||||||||||||||||||||||||
11 | Medical Analysis | G. Kelly, MSC | F. Thompson, LaRC; G. Malley, Counsel | ||||||||||||||||||||||||||||||||||||||||
12 | Witness Statements | N. Vaughn, MSC | G. Strang, USAF;
Irving Pinkel, of Lewis Research Center and the Fire Propagation Panel, presented a preliminary report to the Apollo 204 Review Board. The report described the areas of the command module most damaged by the January 27 fire, the most probable fire paths, and the combustible materials in the CM. The oxygen in the CM would permit burning of only 5.4 to 6.8 kilograms of material. Solid combustibles in the CM included plastics in the nylon, polyurethane, and silicone rubber classes. The liquid-coolant ethylene glycol could also become a fuel if it escaped from the closed coolant system. The technical team from AiResearch and North American Aviation (under NASA supervision) completed inspection of the CM 012 spacecraft environmental control unit, preparatory to removal. Panel 21 was formed for service module disposition. It would plan and execute SM activities and obtain Board approval for demating the command and service modules.
The Senate Committee on Aeronautical and Space Sciences met in executive session to hear NASA testimony on the Apollo 204 fire. NASA Deputy Administrator Robert C. Seamans, Jr., said the cause of the accident had not yet been found. Corrective actions under study included choices of CM cabin and suit atmospheres, improved accessibility into and out of the CM cabin, and procedures to minimize the possibility of fires and to extinguish fires if they should occur. Charges that the Apollo program was taking chances with lives in the effort to beat the U.S.S.R. to the moon were "completely unfounded; . . . before every one of our manned flights, as well as our ground test simulations, we have taken stock to be sure that there is nothing . . . undone or . . . done, that would in any way increase the risk to the astronauts." The astronauts had been party to decisions and part of the review process to make sure this was true. Associate Administrator for Manned Space Flight George E. Mueller emphasized that the Apollo program had been "paced at a deliberate pace"; it was the longest research and development program the U.S. had ever undertaken. MSC Chief of Center Medical Programs Charles A. Berry testified that the cabin atmosphere used in the Apollo program - 100 percent oxygen at pressure of 3.5 newtons per square centimeter (5 pounds per square inch) - was based on extensive research over more than 10 years. The one-gas selection was based on tradeoffs among oxygen toxicity, hypoxia, spacecraft leakage, weight, and system reliability. And cabins had been purged with oxygen at some 10.3 newtons per square centimeter (15 pounds per square inch) during the prelaunch period for all manned launches since 1960 and all spacecraft vacuum chamber tests in Mercury, Gemini, and Apollo programs - primarily to prevent astronauts from getting the bends. Three previous fires had occurred in the pure oxygen environment, but these had been in simulators and caused by test equipment and procedures that would not be used in spacecraft. The three-door hatch, requiring 90 seconds to open, was used for the first time on CM 012, which had an inner pressure hull and an outer shell to carry the structural loads of reentry into the atmosphere on a return from the moon. Danger of a fast-opening escape hatch's accidentally opening in space - as the Mercury program's Liberty Bell hatch had opened after splashdown in July 1961 - had to be considered. Research on cabin accessibility, ongoing before the 204 accident, was now intensified.
MSC ASPO Manager Joseph Shea reviewed with George Jeffs of North American Aviation a deficiency in the mission control programmer (MCP) in spacecraft 017. Certain diodes - intended to prevent propagation of a single-point failure into redundant circuitry - had been omitted from the flight unit. The diodes appeared on MCP schematics but had been omitted from the hardware because of problems in ground testing. A fix appeared mandatory before flight. The MCP unit in spacecraft 020 would be similarly modified before final integrated tests, to confirm that the design change had not introduced other problems. Shea requested a full explanation from North American "as to how the schematics and/or drawings being used by the responsible design review engineers did not reflect the as built conditions." A report detailing the loopholes in North American procedures that permitted such a condition and the corrective actions taken to prevent such incidents in the future was requested no later than March 1.
Apollo 204 Review Board Chairman Floyd Thompson requested the NASA Office of Manned Space Flight, MSFC, KSC, and MSC to furnish a detailed description of their responsibilities, organizational relationships, and alignment in the Apollo program. Robert W. Van Dolah (Bureau of Mines), Chairman of the Origin and Propagation of Fire Panel, was asked to prepare a report on fire propagation by February 15 for submission to NASA Deputy Administrator Robert C. Seamans, Jr. Specially built tables had been placed in the Pyrotechnic Installation Building to display items from CM 012 for inspection without handling. The Board also decided to ask that special studies of the spacesuits be made by the manufacturer and the MSC Crew Systems Division, to provide expert opinions on possible contributing factors to the fire and information for future spacesuit design.
NASA Deputy Administrator Robert C. Seamans, Jr., and members of his staff were briefed at KSC on aspects of the Apollo 204 investigation: final report, fire propagation, photographic control, data integration, and medical analysis. The group also visited the Pyrotechnic Installation Building and other areas under the control of the Apollo 204 Review Board. Board Chairman Floyd Thompson announced that the panel reports would be signed by the panel chairmen only and that the Board monitors assigned to the panels would be responsible for ensuring that minority views be given proper consideration. In the event that serious differences were not resolved, they were to be included in the panel reports for the Board's consideration.
The Board of Inquiry into the January 20 S-IVB-503 explosion at the Douglas Sacramento Test Facility identified the probable cause as the failure of a pressure vessel made with titanium-alloy parent-metal fusion welded with commercially pure titanium. The combination, which was in violation of specifications, formed a titanium hydride intermetallic that induced embrittling in the weld nugget, thus significantly degrading the capabilities of a weldment to withstand sustained pressure loads. The Board recommended pressure limitations for titanium-alloy pressure vessels.
William W. Petynia, MSC, was given ASPO responsibility for use of the spacecraft 012 service module in nonflight support of the Apollo program when the Apollo 204 Review Board released the SM from - further investigation. It was to be used in subsystem tests or tests of the complete module.
NASA Deputy Administrator Robert C. Seamans, Jr., gave Administrator James E. Webb a second interim report on the Apollo 204 Review Board investigation: "At this time there has been no determination as to the source of the ignition itself," but the fire apparently had varied considerably in intensity and direction and might have had more than one phase. All three crew spacesuits had been burned through, although extent of damage varied. Spacecraft disassembly was proceeding carefully, with detailed mapping and photography. Webb released the report to the press February 15.
Selected Apollo 204 Review Board members and panel chairmen were instructed to prepare an interim report on actions to date. The Board was to review the report February 19 for a briefing of NASA Deputy Administrator Seamans on February 22. Robert W. Van Dolah presented a report on findings by the Origin and Propagation of Fire Panel, for submission to Seamans. Command module 012 was scheduled for removal from its launch vehicle February 17 because of satisfactory progress in removing systems from it.
The Apollo 204 Review Board received a detailed briefing on the anomalies recorded before and during the CM 012 fire. The following anomalies were transmitted by the command module telemetry system to several recording stations:
NASA Deputy Administrator Robert C. Seamans, Jr., informed Associate Administrator for Manned Space Flight George E. Mueller that, in view of the interim nature of schedule outlook for manned uprated Saturn I and Saturn V missions, he had decided to show these missions as "Under Study" in the Official NASA Flight Schedule for February 1967. As soon as firm approved dates for the missions were available the schedule would be updated. He said that all participants in the Apollo program should be advised that - except for unmanned missions 206, 501, and 502 - official agency schedule commitments had not been made and certainly could not be quoted until management assessments of the program had been completed and schedules approved by the Office of the Administrator.
The Apollo 204 Review Board classified the materials in and around spacecraft 012 into three categories. Categories A and B were materials that had significant bearing on the results of the findings or were considered relevant to the investigation. Category C was essentially material not involved in the event, or only affected as a consequence of the event. Most of the Category C material would, at the time of its designation, be released to the program office for disposition and use within what might be termed normal program channels.
The Apollo 204 Review Board approved a plan to remove the spacecraft 012 service module from the launch vehicle on February 21. The service module was to be taken to the Manned Spacecraft Operations Building at KSC for detailed examination and testing. Board Chairman Floyd Thompson directed that a plan be developed to release Launch Complex 34 from impoundage and to return it to KSC for normal use after the SM was removed. Preparations were being made to remove the aft heatshield from the command module to permit inspection of the CM floor from the lower side.
Kenneth S. Kleinknecht was designated Chairman of the CSM Configuration Control Panel in the Apollo Spacecraft Program Office, MSC. He would have authority to approve CSM changes within the limits outlined in the ASPO Configuration Management Plan.
Apollo program officials were briefed on significant information, tentative findings, and preliminary recommendations developed by the Apollo 204 Review Board. Those present included George E. Mueller, Samuel C. Phillips, C. H. Bolender, Frank A. Bogart, and Julian B. Bowman, all of NASA Hq.; Robert R. Gilruth, George M. Low, and Christopher C. Kraft, Jr., all of MSC; Kurt H. Debus, KSC; and Wernher von Braun, MSFC. Ashmun Brown, Office of Chief Counsel, KSC, was assigned to assist the counsel to the Board.
A formal briefing on progress of the Apollo 204 Review Board was presented to NASA Deputy Administrator Robert C. Seamans, Jr., David Williamson of Seamans' staff, and Charles A. Berry, Joseph F. Shea, Donald K. Slayton, and Walter M. Schirra, Jr., all of MSC. In a general session of the Board, Chairman Floyd Thompson stated that 1,500 persons were giving direct support to the accident investigation. This number, considered to be conservative, consisted of 600 persons from NASA, Air Force, Navy, Department of the Interior and other government agencies, and 900 from industry and universities.
Apollo Program officials, headed by NASA Associate Administrator for Manned Space Flight Mueller, briefed Deputy Administrator Seamans, Apollo 204 Review Board members, and those present at the February 22 briefing. The presentation included a status report on the Apollo program, on special tests being conducted and planned as a result of the January 27 fire, and on proposed actions on the tentative Review Board findings. Board Chairman Floyd Thompson, LaRC; Robert Van Dolah, Bureau of Mines; and Frank Borman, MSC, accompanied Seamans to Washington the following day, to brief Administrator James E. Webb on the tentative findings and preliminary recommendations of the Board. The spacecraft-lunar module adapter (SLA) was removed from the launch vehicle and moved to the Manned Spacecraft Operations Building for examination.
William A. Lee was redesignated from Assistant Program Manager, Apollo Spacecraft Program Office, to Manager for the LM, ASPO, at MSC. Lee would be responsible for the management of the lunar module program, including MSC relations with Grumman and other supporting industrial concerns. Lee would report to ASPO Manager Joseph F. Shea and would assist him in the following areas:
NASA Administrator James E. Webb released a statement and Deputy Administrator Robert C. Seamans' third interim report on the Apollo 204 Review Board investigation, including tentative findings and preliminary recommendations. Webb said the risk of fire in the 012 command module had been greater than recognized when procedures were established for the January 27 manned test that had ended in a fatal flash fire. Successful Mercury and Gemini flight experience with pure oxygen atmospheres and the difficulty of keeping dropped items out of complex wiring and equipment had led to placing Velcro pads, covers over wire bundles, and nylon netting in the CM cabin. Although mostly of low combustion material, they were not arranged to provide barriers to the spread of fire. Soldered joints also had melted, and leaked oxygen and fluids had contributed to the fire. The capsule rupture caused flames to rush over and around astronaut couches to the break, preventing the crew from opening the hatch. And the environmental control unit would require careful examination and possible redesign. Seamans reported an electrical malfunction was the most likely source of ignition of the fire, which apparently had three distinct phases. Principal preliminary recommendations of the Review Board were:
NASA officials testified in an open hearing of the Senate Committee on Aeronautical and Space Sciences on the Apollo 204 fire. MSC Chief of Center Medical Programs Charles A. Berry reported that the cause of the three astronauts' deaths could be refined to asphyxiation from inhalation of carbon monoxide, bringing unconsciousness in seconds and death rapidly thereafter. The astronauts were believed to have become unconscious 18 to 20 seconds after the fire began. Associate Administrator for Manned Space Flight George E. Mueller said NASA was introducing a three-pronged effort to prevent fire in the future: it would continue to minimize the possibility of ignition but would recognize the possibility would always exist, would seek to eliminate the chance of propagation if a fire began, and would seek to minimize consequences of a fire to the crew. Newly developed nonflammable materials would be used wherever possible and would be arranged to maintain fire breaks. Systems would be made more fire- and heat-resistant. The new CM cabin would be verified by full boilerplate flame tests. Design work was under way on a new unified hatch - a single integrated hatch to replace the double hatch and permit emergency exit in two seconds, yet remain safely sealed in flight. Emergency procedures were being revised. Spacecraft system design and qualification were being thoroughly reviewed. Alternative cabin atmospheres for checkout and launch were being studied, but during flight itself pure oxygen at 3.5-newtons-per-square-centimeter (5-pounds-per-square-inch) pressure still appeared safest for crews, with best balance among fire hazard, system reliability, and physiological risks. First Apollo Block II spacecraft - CSM 101, the next in line at North American Aviation - was to incorporate all changes determined necessary by the investigation.
Apollo 204 Review Board Chairman Floyd Thompson announced that the NASA Deputy Administrator had signed a memorandum February 27 designating the Director, Langley Research Center, custodian of the Review Board material. Maxime Faget, MSC, presented a plan for screening equipment removed from the CM. The plan was intended to reduce the effort and time required to investigate and analyze the equipment. The Board agreed that the Panel Coordination Committee would establish an ad hoc committee to perform the screening.
MSC ASPO reported to NASA Hq. that, because of many wiring discrepancies found in Apollo spacecraft 017, a more thorough inspection was required, with 12 main display control panels to be removed and wiring visually inspected for cuts, chafing, improper crimping, etc. The inspection, to begin March 2, was expected to take three or four days. The two crates containing the mission control programmer (MCP) for CSM 017 had been delivered to Orlando, Fla., February 26 with extensive damage. Damage indicated that one crate might have been dropped upside down; its internal suspension system was designed for right-side-up shock absorption. The second crate contained holes that might have been caused by a fork lift. The MCP was returned to Autonetics Division of North American Aviation for inspection; barring dynamic programmer problems, the equipment was expected to be returned to KSC by March 7. The crates bore no markings such as "This Side Up" or "Handle with Care."
The Apollo 204 Review Board decided to classify all material from command module 012 as Category A or Category B items. Category A would include all items that were damaged or identified as suspect or associated with anomalies. Category B would include items that appeared to be absolved of association with the January 27 accident; these would be available to the Apollo Program Office for use in nondestructive tests, but the Board would require copies of all test reports. Frank Borman, MSC, announced that disassembly of the command module was scheduled for completion by March 10.
Although the final recommendations of the Apollo 204 Review Board were not yet in hand, MSC Deputy Director George M. Low believed the program "should start preparing a set of criteria which must be followed before we can resume testing in an oxygen environment. These criteria can then be used either to allow us to sign waivers on our testing embargo, or to go forward with additional messages, permitting testing, provided our criteria are met." He said the criteria would probably differ for:
The aft heatshield was removed from CM 012. A close inspection disclosed that the rupture in the floor extended about two-thirds of the circumference, a rupture much greater than originally estimated.
During a House Committee on Science and Astronautics hearing on NASA's FY 1968 authorization, NASA Administrator James E. Webb replied to questions by Congressmen John W. Wydler, Edward J. Gurney, and Emilio Q. Daddario about the impact of the Apollo 204 accident on schedules for accomplishing the lunar landing.
NASA Associate Administrator for Manned Space Flight George E. Mueller stated that the February completion of MSFC studies of the Saturn V launch vehicle's payload and structural capability would permit an official revision of the payload from 43,100 kilograms to 44,500 kilograms; the CM weight would be revised from 5,000 to 5,400 kilograms; and the LM from 13,600 to 14,500.
Maxime A. Faget, MSC, presented the Apollo 204 Review Board a follow-up report on analysis of the arc indication on the lower-equipment-bay junction-box cover plate. The plate had been delivered to the KSC Material Analysis Laboratory and, in addition to the analysis of the arc indication, molten material found on the bottom of the plate would also be analyzed.
J. Thomas Markley, Assistant Manager of ASPO, pointed out that within a few weeks MSC would face sustaining engineering problems. Many subcontractors not affected by the January 27 Apollo 204 accident would be phasing out of work; also many of them would be out of business long before the major flight program would start. He asked, "How do we now retain that talent for some necessary period of time?" He requested that Systems Engineering define requirements for retaining the technical capability for the overall systems, as well as the unique subsystem capability potentials that might need to be retained. He requested the package be prepared for his review by April 3.
The report of the Apollo 204 Review Board's In-flight Fire Emergency Provisions Review Panel (No. 20) listed seven findings and accompanying determinations. The panel had been charged with reviewing the adequacy of planned inflight fire emergency procedures and other provisions, as well as determining that emergency procedures existed for all appropriate activities. Among findings and determinations were:
The Apollo 204 Review Board met with chairmen of Panels 12, 16, 19, and 20 for critical review of their draft final reports. The reports were accepted subject to editorial corrections. The Witness Statements Panel (Panel 12) task had been to collect all data from witnesses of the 204 accident, including both eyewitnesses and console monitors, and to prepare the data for publication as appendix to the formal report. The panel also was to analyze the sequence of events and summarize any testimony that was contradictory to the main data. Eyewitnesses and television and audio monitors from 18 agencies and contractors had been queried. Responses from 590 persons totaled 572 written and 40 recorded statements - adding up to 612 statements obtained (some persons submitted more than one statement or were interviewed twice). The sequence of events, as reconstructed from witness statements, follows: Between 6:31:00 and 6:31:15 p.m. EST Jan.27, 1967
The Special Tests Panel (No. 16) report to the Apollo 204 Review Board summarized activities from January 31 to February 23, when it had been merged with Panel 18. Panel 16 had been established to coordinate tests by other groups into an overall coordinated test plan. For example, flammability would be tested at several locations and the panel would ensure coordination. Major tests such as mockups of actual configurations and boilerplate destructive combustion tests would be considered by the panel.
The Service Module Disposition Panel (No. 21) report accepted by the Apollo 204 Review Board said test results had failed to show any SM anomalies due to SM systems and there was no indication that SM systems were responsible for initiating the January 27 fire. Panel 21 had been charged with planning and executing SM activities in the Apollo 204 investigation, beginning at the time the Board approved the command module demate. The task was carried out chiefly by Apollo line organizational elements in accordance with a plan approved by the Board and identifying documentation and control requirements. The panel's major activities had been:
Apollo Program Director Samuel C. Phillips appointed a team to make a special audit of quality control and inspection. The audit would encompass Apollo spacecraft operations at Downey, Calif., KSC, and elsewhere as required and would consider both contractor and government activities to determine if problems or deficiencies existed and recommend corrective action. The team was to use to the maximum extent the results of quality and inspection audit activities already under way at MSC and KSC. Specifically, the team was to
MSC informed Kennedy Space Center that, on release of the 012 service module from further investigation, the MSC Apollo Spacecraft Program Office would use it for program support. ASPO was establishing tests and test locations and asked KSC to deactivate SM systems and store the SM in a remote area for up to four weeks.
MSC Director of Flight Crew Operations Donald K. Slayton requested that a rendezvous of the CSM with its launch vehicle S-IVB stage be a primary objective of the Apollo 2 mission (i.e., Apollo 7; Slayton apparently wanted to acknowledge only scheduled manned flights in the sequentially numbered Apollo missions). He stated that the exercise could be conducted after the third darkness without interference with normal spacecraft checkout. "We believe a rendezvous with the booster on the first manned Apollo mission would be compatible with developing lunar mission capability at the earliest opportunity and request its incorporation into the primary mission objective." A memorandum from Flight Operations Director Christopher C. Kraft, Jr., on April 18 recognized "the need for CSM active rendezvous early in the Apollo flight program, but recommends that rendezvous not be considered during the first day of the Apollo 7 (the official flight designation for the first manned flight) mission. . . ." and presented four reasons:
CSM 017 was in hold because of numerous discrepancies found in the spacecraft. Of 1,368 "squawks" concerning exposed wiring, 482 had been resolved by March 14. Spacecraft mechanical mating with the launch vehicle was projected for April 29.
The Apollo 204 Review Board accepted the final report of its Administrative Procedures Panel (No. 15). The panel had been established February 7 to establish and document such activities as control of spacecraft work, logging and filing exhibits, logging Board activities, scheduling meetings, preparing agendas, and arranging for secretarial services and reproduction. During the investigation into the January 27 spacecraft fire, the panel had:
LeRoy E. Day, NASA OMSF, suggested to Apollo Program Director Samuel C. Phillips that, "if we are going to achieve a tight schedule of redesign and test activity as a result of AS-204 (accident), a number of changes in our mode of operation may be necessary." He recommended a concerted effort to systematize and discipline the scheduled reporting system between OMSF, ASPO, and the contractor. Day further suggested monthly "Black Saturday Reviews" by ASPO with OMSF participation. The reviews would be detailed and cover all spacecraft activities and should be given against the same set of baselines as all program reviews. Slips against such schedules would have to be thoroughly reviewed and a recovery plan developed.
The Apollo 204 Review Board accepted the final report of the Security Operations Panel (No. 14). The panel had been assigned to review existing security practices at KSC and supporting areas for adequacy and recommend any needed changes. Practices included access control, personnel sign-in requirements, buddy systems, and background investigation requirements. The panel's report submitted six findings and determinations, which included:
The final report of the Spacecraft and Ground Support Equipment Configuration Panel (No. 1) was accepted by the Apollo 204 Review Board. The panel had been assigned the task of documenting the physical configuration of the spacecraft and ground support equipment immediately before and during the January 27 fire, including equipment, switch position, and nonflight items in the cockpit. The panel was also to document differences from the expected launch configuration and configurations used in previous testing (such as altitude-chamber testing). During the investigation the panel had discovered a number of items which might have had relevance to flame propagation:
The Apollo 204 Review Board accepted the final report of the Fracture Areas Panel (No. 10). The panel had been charged with inspecting spacecraft 012 for structural failures in the January 27 fire and analyzing them from the standpoint of local pressure, temperature levels, direction of gas flow, etc. The panel inspected the spacecraft structures while they were still at Launch Complex 34 and continued through removal of the CM heatshield. Structural damage reports were made coinciding with spacecraft disassembly phases. As major subsystems were removed from the spacecraft they were visually inspected. Buckles, fractures, cracks, melted areas, localized arcing or pitting in metal components, and obvious direct wire shorts were noted and documented. Panel findings and determinations included:
The Apollo 204 Review Board accepted the final report of its Origin and Propagation of Fire Panel (No. 5). The panel task had been to "conduct inspections, chemical analyses (and) spectrographic analysis of spacecraft, parts or rubble, or use any other useful techniques to establish point of (the CM 012) fire origin, direction and rate of propagation, temperature gradients and extremes. The nature of the fire, the type of materials consumed, the degree of combustion shall be determined." Following an intensive study - which considered ignition sources, description, and course of the fire - the panel listed 10 findings and determinations in its final report, including:
The Materials Work Panel (Panel 8, also referred to as Materials Review' Panel) in its final report accepted by the Apollo 204 Review Board cited a number of findings on flammable materials in spacecraft 012. The panel's task had included the following, from its detailed work statement:
The final report of the Ground Emergency Provisions Panel (Panel 13) accepted by the Apollo 204 Review Board submitted 14 findings and determinations. The panel had been charged with reviewing the adequacy of planned ground procedures for the January 27 spacecraft 012 manned test, as well as determining whether emergency procedures existed for all appropriate activities. The review was to concentrate on activity at the launch site and to include recommendations for changes or new emergency procedures if deemed necessary. The panel approached its task in two phases. First, it reviewed the emergency provisions at the time of the CM 012 accident, investigating
Findings and determinations included:
The Deputy Administrator of NASA designated Langley Research Center custodian of all materials dealing with the investigation and review of the January 27 Apollo 204 accident. Review Board Chairman Floyd Thompson, LaRC, who had the responsibility of determining the materials to be included in the final repository, determined that the following categories of materials were to be preserved:
In other actions Robert W. Van Dolah, Chairman of the Origin and Propagation of Fire Panel, reported on a test being conducted in CM 014 to attempt to establish the amount of static electricity that might be generated by a suited crewman; and members of the Board met with MSC Director Robert R. Gilruth and members of his staff, as well as management and engineering personnel of North American Aviation, for a presentation concerning solder joints in the CM.
NASA announced it would use the Apollo-Saturn 204 launch vehicle to launch the first lunar module on its unmanned test flight. Since the 204 vehicle was prepared and was not damaged in the Apollo 204 fire in January, it would be used instead of the originally planned AS-206.
Final report of the Disassembly Activities Panel (No. 4) was accepted by the Apollo 204 Review Board. Panel 4 had been assigned to develop procedures for disassembly of spacecraft 012 for inspection and failure analysis. Disassembly was to proceed step by step in a manner permitting maximum information to be obtained without disturbing the evidence - in both the cockpit and the area outside the pressure hull. Cataloging documentary information within the spacecraft and displaying the removed items were a part of the required procedures. Procedures followed included the following actions:
The Apollo 204 Review Board accepted the final report of its Test Environment Panel (Panel 2). Panel 2 had been assigned responsibility for the history of all test environments encountered by spacecraft 012 that were considered germane to system validation from a fire hazard standpoint, including qualification testing of systems and subsystems. The panel was particularly to emphasize qualification tests in pure oxygen with regard to pressures, temperature, time of exposure, and simulation of equipment malfunctions. It was also to indicate any deficiencies in the test program related to the problem; comparison with previous tests of appropriate flight, house, or boilerplate spacecraft; and documentation of any problems encountered which related to fire hazard. The panel reviewed all tests pertinent to the investigation. The qualification tests were reviewed at MSC, covering more than 1,000 documents. Vehicle tests were reviewed at North American Aviation's Downey, Calif., facility, covering more than 500 documents. Summaries of these efforts were reviewed by the panel at KSC to determine any test program deficiencies. The final report of the panel included six findings and determinations. Among them were:
NASA Hq. Office of Manned Space Flight informed KSC, MSFC, and MSC of approved designations for Apollo and Apollo Applications missions:
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