NACA scientists initiated examination of the need for a follow-on manned-rocket research vehicle to the X-15, following ARDC inquiries concerning a boost-glide vehicle. References: 17 .

Full-scale test version of the Snark guided missile (XSM62) successfully recovered for the first time after a flight from Cape Canaveral. References: 17 .

NACA flight 12. Only 60-sec rocket operation; intermittent pump operation. Flight aborted, turbopump and engine replaced. References: 49 , 97 .

CC-14 was launched at 0405 hours EST from AMR after a series of short holds. The flight was successful. The actual range was 137.870 nm; 72 meters over and 338 meters right: of the intended impact point. The primary objectives were to test the accuracy of the guidance system and to test angle of-attack meters for the Jupiter. Missed aimpoint by 346 m. References: 439 .

NACA scientists were engaged in preliminary studies of the need for a follow-on, manned-rocket research vehicle to the X-15. References: 483 .

Pressure, temperature, density research. Launched at 0240 local time. Reached 145 km.

RS-25 was launched at 2104 hours EST from AMR. The flight was not successful. The behaviour of the missile appeared normal for the first 13 seconds, an early roll disturbance having been smoothly eliminated. Starting at 13 seconds after range zero, the gyro yaw signal indicated increasing yaw for a few seconds and the tracking devices at the same time showed increased displacement to the left of the standard trajectory. The malfunction apparently occurred between the yaw gyro potentiometer output and the outputs of the yaw amplifier of the mixing computer. The primary test objective was to test power plant performance. Missed aimpoint by 264,900 m. References: 439 .

Sodium emission research. Launched at 0557 local time. Reached 68 km.

Sodium emission research. Launched at 2230 local time. Reached 151 km.

Following Navy withdrawal from the Jupiter IRBM program, separate Army and Navy Ballistic Missile Committees were established under chairmanship of respective service secretaries. Navy withdrawal based on interest in solid-propellant Polaris as ship-based IRBM. References: 17 .

Rocket test stand capable of testing engines to 1 million pounds thrust activated at Edwards AFB, which became operational in March 1957. References: 17 , 27 .

Personnel of the Air Research and Development Command approached NACA officials on the possible cooperation of NACA in a research airplane project as a follow-on to the X-15 project. NACA agreed to consider the plan and directed its laboratories to initiate feasibility studies relative to the range of speed for the proposed vehicle and an estimate of the time frame in which the vehicle could be developed. References: 483 .

Temperature, winds research. Launched at 0546 local time. Reached 67.5 km.

RS-28 was launched at 2105 EST from AMR. The flight was successful. Actual range was 152.4 nm; 9.51 nm over; and 1.5 kilometres left of the intended impact point. The missile carried the LEV-3 rather than the ST-80 guidance system and used fuel depletion cut-off. The primary test objective was to test the Sandia payload. Missed aimpoint by 19,500 m. References: 439 .

Ionosphere research. Also known as IGY NN3.09. Launched at 1332 local time. Reached 119 km.

Department of Defense transferred northern portion of Camp Cooke, Calif. (now Vandenberg AFB), to the Air Force to be used as first ICBM base. The Secretary of Defense directed the United States Army to transfer 64,000 acres of Camp Cooke's 86,000 acres to the Air Force. References: 17 , 278 .

Atmospheric structure research. Also known as IGY NN3.12. Launched at 1048 local time. Reached 195 km.

Air and ion composition research. Also known as IGY NN3.17. Launched at 2321 local time. Reached 255 km.

NACA flight 13. No engine operation, ignition failure due to lack of manifold pressure. References: 49 , 97 .

R-5M's launched as targets for the V-1000 anti-ballistic missile system.

Secretary of Defence Wilson rules that Army could not develop missiles over 200 mile range. Jupiter assigned to AF. References: 86 .

Launched at 0823 hours EST from AMR. The flight was successful. Actual range was 138.969 nm; .137 nm over and 122 meters left of the intended impact point, a radial miss distance of 260 meters. The primary test objectives were to test the accuracy of the complete guidance system and to test Jupiter control components. Missed aimpoint by 255 m. References: 439 .

First Vanguard test; re-entry studies; not a vertical firing. Launched at 0103 local time. First test rocket in the IGY-U.S. satellite program, a one-stage NRL Viking, attained an altitude of 176 km and a speed of 6,400 kph. Viking No. 13 carried a "minitrack" radio transmitter which was ejected at 80 km and tracked.

Twenty-four Wasp research and develoment chaff and parachute rockets, used to obtain wind soundings to 160,000 feet, were fired by Naval Ordnance Missile Test Facility at WSPG. References: 17 .

Rocket test, 80 kg payload payload. Launched at 1444 local time. Reached 193 km.

Council of Soviet Ministers (SM) Decree 'On the Creation of the Intercontinental Ballistic Missile R-16(8k64) with Start of LKI in June 1961--start of work on the R-16 ICBM' was issued. References: 474 .

Navy Special Projects Office authorized Lockheed to proceed with Polaris development, having withdrawn from the Jupiter program earlier. References: 17 .

Launched from AMR at 2230 hours EST. The flight was successful, Actual range was 401.6 nm; 84.9 nm over the intended impact point. The missile used Hydyne fuel. The primary test objective was to test the control of an unstable missile configuration by using an angle-of-attack meter (boom type) in the ascending phase (Jupiter control). Missed aimpoint by 157,200 m. References: 439 .

R-5M's launched as targets for the V-1000 anti-ballistic missile system.