| astronautix.com | Jupiter A |
Test rocket derived from the Redstone ballistic missile to test guidance and re-entry vehicle technology for the Jupiter IRBM. The Jupiter A consisted of an uprated Redstone as the first stage, with a cluster of small solid rocket motors as upper stages, which would drive the subscale Jupiter warhead to the same speed and range as the IRBM.
RS-11 was launched at 0051 hours EST from AMR after a three-hour hold. The flight was unsuccessful. The LOX container pressure and the combustion chamber decreased 50 seconds after lift-off. The temperature of Fin Number 1 went out of measuring range 72 seconds after lift-off. The servo battery current dropped to zero and the stabilised platform lost its reference. The range safety officer gave the emergency cut-off signal at 79 seconds. Impact occurred approximately 21,000 yards from the launch pad. The RS-11 was the first flight with the complete guidance system. Missed aimpoint by 118,800 m.
RS-12 was launched from AMR at 1946 hours EST. The flight was successful. The actual range was 144.79 MM; .31 nm over; and 200 meters right of the intended impact point, The primary test objective was to test the complete guidance system. This was the first successful flight with the inertial guidance system. Missed aimpoint by 228,800 m.
The first Jupiter A launching, by ABMA at Cape Canaveral. RS-18 was launched at 1936 hours EST from AMR. The flight was successful. The scheduled launching date of this missile was 13 March. Three holds were called because of LOX difficulties, telemetry difficulties, and replacement of a gate valve. The actual range was 133.58 nm; 10.3 nm under; and 5.66 nm right of the intended impact point. Separation occurred before the missile gained its correct velocity. Improper assumption of propellant flow for the trajectory calculation was primarily responsible for the incorrect cut-off. The primary test objectives were to test the complete guidance and control system to establish the performance qualities of the complete missile system. Missed aimpoint by 19,100 m.
RS-19 was launched at 2322 hours EST from AMR. The flight was successful. The actual range was 169.4 nm; 13 nm over the intended impact point. Cut-off wee given by the alcohol depletion switch that sensed alcohol injector pressure drop-off. Takeoff occurred 0.156 seconds after firing. The missile followed the correct trajectory with no obvious deviation. Missile cut-off occurred later than predicted and caused the missile to impact approximately 6.5 nm long, During descent the warhead turned left, causing impact to be several miles to the left of the aiming azimuth line. The primary test objectives were to test the angle-of-attack meter hardware (Jupiter control). Missed aimpoint by 25,100 m.
CC-13 was launched at 0345 hours EST from AMR. The flight was successful. The actual range was 142.457 nm; .780 nm over the intended impact point. This was the first Chrysler fabricated and assembled missile. Missed aimpoint by 1,071 m.
RS-20 was launched at 0325 hours EST from AMR. The flight was successful. The actual range was 139.72 nm; 0.3 nm over the intended impact point. The primary teat objectives were to test the accuracy of the guidance system and to acquire data for the establishment of design criteria for the Jupiter. This was the first time that the combustion chamber pressure was controlled. Missed aimpoint by 175 m.
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.
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.
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.
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.
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.
Launched at 2037 hours EST from AMR. The flight was successful. Actual range was 61.6 nm; 400 meters left; and 0.21 nm ovar the intended impact point. The primary objective was to test the accuracy of the guidance system when the missile is fired in a short range trajectory at an extreme attitude to range ratio. The missile closely followed the predicted trajectory for a successful flight which terminated 70 meters beyond and 360 meters to the Left of the expected impact point at 61.553 nm range. The short range trajectory was programmed with an extreme altitude-to-range ratio so the guidance system would be subjected to the most difficult short range expected in future tactical application. Missed aimpoint by 400 m.
The first missile shipped directly from the Chrysler Factory to the test site to be flight tested was launched at 0312 hours EST from AMR The flight was successful. Actual range was 138.178 nm; 2.2 nm under; and 1250 meters left of the intended impact point. The missile functioned properly until 182 seconds when an unexplainable pitch deviation caused a slow tilting of the missile top section. The cut-off function at 120 seconds and the separation function at 135 seconds, after flight zero time, were both satisfactory. Missed aimpoint by 4,183 m.
Launched at 2022 hours EST from AMR. The flight was successful from the standpoint of missions accomplished, with cut-off time 112 seconds and separation time 126 seconds after range zero time. Impact point was 220 meters short and 320 meters to the right, a radial miss distance of 390 meters, primary objective was to test the accuracy of the guidance system when the missile was fired in a short range trajectory at an extreme altitude to range ratio. Missed aimpoint by 390 m.
Launched at 0609 hours EST from AMR to test performance of the inertial guidance system, angle-of-attack meters, separation of explosive screws, and impact and radar fusing systems. Range instrumentation difficulties and deteriorating weather delayed the firing from the initially scheduled time of 0230 hours EST. The flight was successful. Actual range was 135.425 nm; 0.42 nm over; and 389 meters left of the intended impact point. Missed aimpoint by 785 m.
Launched at 0130 hours EST from AMR. The primary test objective was to test the accuracy of the guidance system. The flight was successful. Actual range was 130.125 nm; 0.15 nm over; and 285 meters left of the intended impact point. All missions were successfully accomplished. The missile followed the predicted trajectory very closely. Survey of the impact crater indicated a miss distance of 50 meters over and 284 meters to the left of the predicted impact point, giving a radial miss distance of 389.5 meters. Missed aimpoint by 289 m.
Launched at 2317 hours EST from AMR. The flight was successful. Actual range was 126.227 nm; 147 meters under; and 182 meters left of the intended impact point. The primary test objective was to flight test warhead and fuse functioning as a system. A survey of the warhead impact point: indicated a miss distance of 147 meters short, 182 meters to the left of the predicted impact point, or a radial miss distance of 234 meters. Missed aimpoint by 235 m.
Launched at: 2141 hours EST from AMR. The flight was unsuccessful, The missile impacted 14 77 nm from the launch pad. Mechanical failure of the guidance tilt program caused the missile to assume a very steep trajectory which resulted La. a short range flight. Missed aimpoint by 111,000 m.
Launched at 1429 hours EST from AMR. The flight was successful, the impact point was 445 metres long and 452 meters to the right of the predicted impact point, giving a radial miss distance of. 634 meters. This was the first flight test of the NAA A-6 engine with a sea level thrust of 78,000 pounds. Missed aimpoint by 572 m.
Launched at 2352 hours EST from AMR. The flight was unsuccessful. Actual range was 48 nm, whereas the predicted range wee 130.588 nm. At 68 seconds, a disturbance occurred in the lateral accelerometer and computer systems. Erroneous guidance instructions were transmitted to the control systems, causing a sharp yaw at 70 seconds. Cut-off was initiated at 98.1 seconds. One of the objectives was to indoctrinate troops for participation in the tactical portions of the countdown. Missed aimpoint by 151,000 m.
Successfully fired at 1936 hours EST from AMR. The missile followed the trajectory very closely and impacted on target. All missions were successfully accomplished. The predicted impact range was 141.895 nm. The miss distance has bean certified as 153 meters radial, 94 meters over, and 121 meters to the left of the predicted impact point. The primary objective of the rest was to flight test Hardtack adaptation kit components as passengers. Missed aimpoint by 209 m.
Successfully fired at 2024 hours EST from AMR. The flight was successful in that all missions were accomplished.. The missile followed its predicted trajectory closely. Impact was 370 meters over and 86 meters to the tight of the predicted impact point, a radial miss distance of 380 meters. This wee the fifth complete flight test of warhead and fuse system. Missed aimpoint by 286 m.
Successfully fired at 1954 hours EST from AMR. The flight was successful in that all missions were accomplished, with the exception of the Hardtack adaptation kit mission. Impact was 258 meters over and 172 meters to the left of the predicted impact point, a radial miss distance of 310 meters. The primary objectives of the test were to test the warhead and fuse system and the guidance system. Missed aimpoint by 310 m.
Successfully fired at 1459 hours EST from the AMR. The flight was successful in that all missions were accomplished. Impact was 461 meters over end 64 meters to the left of the predicted impact point, a radial miss distance of 466 meters. Missed aimpoint by 245 m.
Successfully fired at 2059 hours EST from AMR. The flight was a success in that all missions were accomplished with the exception of failure of the thrust governor. This failure was caused by human error before firing which caused excess velocity, thereby exceeding the predicted impact point by 8.36 nm. Programmed range to impact was 137.31 nm. All other missions were satisfactorily completed. Missed aimpoint by 14,917 m.