Encyclopedia Astronautica
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1955 Chronology

1955 January 1 - . Launch Site: Kapustin Yar. LV Family: R-11. Launch Vehicle: R-11.
1955 January 4 - .
  • ARDC headquarters issued System Requirement 12. - . Nation: USA. Spacecraft: Bomi, Dynasoar. ARDC headquarters issued System Requirement 12, which called for studies of a reconnaissance aircraft or missile possessing a range of 3,000 nautical miles and capable of reaching 100,000 feet..

1955 January 5 - . Launch Site: White Sands. LV Family: Nike Ajax. Launch Vehicle: Nike Ajax.
  • Test mission - . Nation: USA. Agency: US Army. Apogee: 10 km (6 mi).

1955 January 6 - . Launch Site: White Sands. LV Family: Nike Ajax. Launch Vehicle: Nike Ajax.
  • Test mission - . Nation: USA. Agency: US Army. Apogee: 10 km (6 mi).

1955 January 11 - . LV Family: Navaho. Launch Vehicle: Navaho G-26.
  • Navaho G-26 second production contract - . Nation: USA. Program: Navaho. This added 12 more cruise stages, 21 boosters, and 6 N6 navigation systems, bringing the total procured to 22 cruise stages, 34 boosters, and 11 navigation systems..

1955 January 12 - . Launch Site: Baikonur. Launch Complex: Baikonur. LV Family: R-7. Launch Vehicle: R-7.
  • Tyuratam selected for ICBM test range. - . Nation: Russia.

    Council of Ministers selects Tyuratam for ICBM test site. The first 30 construction workers arrive at Tyuratam. The town founded at the rail staion is called Zarya (Dawn). The name will be changed to Leninsk in January 1958, but Zarya will remain the call sign of Soviet ground control.


1955 January 13 - . Launch Site: White Sands. LV Family: Nike Hercules. Launch Vehicle: Nike Hercules 1810.
  • Test launch - . Nation: USA. Agency: US Army. Apogee: 10 km (6 mi).

1955 January 14 - .
  • Birth of Jeffrey Eliot Detroye - . Nation: USA. Related Persons: Detroye. American engineer military spaceflight engineer astronaut, 1979-1985. Bachelor of science in astronautical engineering from USAF Academy, 1977. From 1986 worked as a Shuttle Flight Controller..

1955 January 14 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LA. Launch Pad: LA?. LV Family: Matador. Launch Vehicle: Matador.
  • Test mission - . Nation: USA. Agency: USAF. Apogee: 12 km (7 mi).

1955 January 16 - .
  • Birth of Dr Jerry Michael Linenger - . Nation: USA. Related Persons: Linenger. American physician mission specialist astronaut. Flew on STS-64, Mir NASA-3..

1955 January 17 - . Launch Site: Wallops Island. Launch Complex: Wallops Island.
  • Rocket-towed model. - . Nation: USA. First launching of a test model towed by a rocket vehicle with a flexible towline, by Langley Laboratory's PARD at Wallops Island, Va..

1955 January 18 - . Launch Site: White Sands. LV Family: Corporal. Launch Vehicle: Corporal.
  • Test mission - . Nation: USA. Apogee: 30 km (18 mi).

1955 January 18 - . Launch Site: White Sands. Launch Platform: B-29. LV Family: X-7. Launch Vehicle: X-7A-1.
  • Nation: USA. Agency: ARDC. Apogee: 10 km (6 mi).

1955 January 19 - . Launch Site: White Sands. LV Family: Nike Ajax. Launch Vehicle: Nike Ajax.
  • Test mission - . Nation: USA. Agency: US Army. Apogee: 10 km (6 mi).

1955 January 20 - . Launch Site: Kapustin Yar. Launch Complex: Kapustin Yar V-2. LV Family: R-5. Launch Vehicle: R-5M.
1955 January 21 - . Launch Site: White Sands. LV Family: Nike Ajax. Launch Vehicle: Nike Ajax.
  • Test mission - . Nation: USA. Agency: US Army. Apogee: 10 km (6 mi).

1955 January 22 - .
  • Birth of Dr Thomas David 'Tom' Jones - . Nation: USA. Related Persons: Jones. American astronomer mission specialist astronaut. Flew on STS-59, STS-68, STS-80, STS-98..

1955 January 22 - . 00:45 GMT - . Launch Site: Holloman. Launch Complex: Holloman A. LV Family: Aerobee. Launch Vehicle: Aerobee RTV-A-1a.
  • Sodium Release 1 Aeronomy mission - . Nation: USA. Agency: USAF AFSC. Apogee: 94 km (58 mi). Airglow research. Launched at 1754 local time. Reached 94.8 km..

1955 January 24 - . Launch Site: White Sands. LV Family: Nike Ajax. Launch Vehicle: Nike Ajax.
  • Test mission - . Nation: USA. Agency: US Army. Apogee: 10 km (6 mi).

1955 January 25 - . Launch Site: Kapustin Yar. Launch Complex: Kapustin Yar V-2. LV Family: V-2. Launch Vehicle: R-1E.
  • Test / biology mission - . Nation: Russia. Agency: Korolev Design Bureau. Apogee: 100 km (60 mi). Payload section deployed at 22 seconds. Left animal container recovered. Carried dogs..

1955 January 26 - . Launch Site: White Sands. LV Family: Nike Ajax. Launch Vehicle: Nike Ajax.
  • Test mission - . Nation: USA. Agency: US Army. Apogee: 10 km (6 mi).

1955 January 27 - . Launch Site: White Sands. LV Family: Nike Ajax. Launch Vehicle: Nike Ajax.
  • Test mission - . Nation: USA. Agency: US Army. Apogee: 10 km (6 mi).

1955 January 28 - . Launch Site: Kapustin Yar. Launch Complex: Kapustin Yar V-2. LV Family: V-2. Launch Vehicle: R-1 8A11.
1955 January 29 - . Launch Site: Kapustin Yar. Launch Complex: Kapustin Yar V-2. LV Family: V-2. Launch Vehicle: R-1 8A11.
1955 February - . LV Family: R-11. Launch Vehicle: R-11FM.
  • Tests of the R-11FM SLBM begun at Kapustin Yar - . Nation: Russia. Tests began with three experimental launches of the missile from a standard R-11 launch stand. This was followed by launches from a special stand simulating a ship's motion, developed by A P Abramov..

Early 1955 - . LV Family: Atlas. Launch Vehicle: Atlas A.
  • Atlas fabrication begins - . Nation: USA.

1955 February 1 - . Launch Site: Kapustin Yar. LV Family: R-11. Launch Vehicle: R-11.
1955 February 1 - . Launch Site: Kapustin Yar. Launch Complex: Kapustin Yar V-2. LV Family: R-5. Launch Vehicle: R-5M.
  • ZI test launch - . Nation: Russia. Agency: Korolev Design Bureau. Apogee: 500 km (310 mi). The first phase of flight trials were conducted from 21 January to July 1955. Of the 14 launches, 13 were successful..

1955 February 1 - . Launch Site: Kapustin Yar. Launch Complex: Kapustin Yar V-2. LV Family: R-5. Launch Vehicle: R-5M.
1955 February 1 - . Launch Site: White Sands. Launch Platform: B-29. LV Family: X-7. Launch Vehicle: X-7A-1.
  • Nation: USA. Agency: ARDC. Apogee: 10 km (6 mi).

1955 February 2 - . Launch Site: White Sands. LV Family: Nike Ajax. Launch Vehicle: Nike Ajax.
  • Test mission - . Nation: USA. Agency: US Army. Apogee: 10 km (6 mi).

1955 February 3 - . Launch Site: Kapustin Yar. Launch Complex: Kapustin Yar V-2. LV Family: V-2. Launch Vehicle: R-1 8A11.
1955 February 4 - . 21:55 GMT - . Launch Site: White Sands. Launch Complex: White Sands LC33. Launch Pad: NLA. LV Family: Viking sounding rocket. Launch Vehicle: Viking Type 9.
  • Viking 12 re-entry vehicle test flight - . Nation: USA. Agency: USN. Apogee: 231 km (143 mi). Re-entry nose-cone heat transfer experiment; photography; atmosphere research. Launched at 1455 local time. Reached 232 km..

1955 February 5 - . Launch Site: Kapustin Yar. Launch Complex: Kapustin Yar V-2. LV Family: V-2. Launch Vehicle: R-1E.
1955 February 6 - . Launch Site: White Sands. LV Family: Nike Ajax. Launch Vehicle: Nike Ajax.
  • Test mission - . Nation: USA. Agency: US Army. Apogee: 10 km (6 mi).

1955 February 7 - . Launch Site: Kapustin Yar. Launch Complex: Kapustin Yar V-2. LV Family: V-2. Launch Vehicle: R-1 8A11.
1955 February 7 - . Launch Site: Kapustin Yar. Launch Complex: Kapustin Yar V-2. LV Family: R-5. Launch Vehicle: R-5.
1955 February 7 - . 18:51 GMT - . Launch Site: Holloman. Launch Complex: Holloman A. LV Family: Aerobee. Launch Vehicle: Aerobee RTV-A-1a.
  • AF / Utah D-layer Ionosphere mission - . Nation: USA. Agency: USAF AFSC. Apogee: 120 km (70 mi). Ionosphere research. Launched at 1151 local time. Reached 120.4 km..

1955 February 8 - . Launch Site: White Sands. LV Family: Honest John. Launch Vehicle: MGR-1.
  • Test mission - . Nation: USA. Apogee: 10 km (6 mi).

1955 February 9 - . 20:15 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC4. LV Family: Redstone. Launch Vehicle: Redstone. FAILURE: Separation bolt No. 3 failure. Inverter frequency shift.. Failed Stage: 1.
  • Nation: USA. Agency: US Army. Apogee: 0 km (0 mi). Missile test failure. Missed aimpoint by 23,400 m..

1955 February 10 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC2. LV Family: Snark. Launch Vehicle: Snark.
  • Test mission - . Nation: USA. Agency: USAF. Apogee: 10 km (6 mi).

1955 February 11 - . Launch Site: White Sands. LV Family: Honest John. Launch Vehicle: MGR-1.
  • Test mission - . Nation: USA. Apogee: 10 km (6 mi).

1955 February 12 - . Launch Site: White Sands. LV Family: Nike Ajax. Launch Vehicle: Nike Ajax.
  • Test mission - . Nation: USA. Agency: US Army. Apogee: 10 km (6 mi).

1955 February 13 - . Launch Site: White Sands. LV Family: Nike Ajax. Launch Vehicle: Nike Ajax.
  • Test mission - . Nation: USA. Agency: US Army. Apogee: 10 km (6 mi).

1955 February 14 - . Launch Site: White Sands. LV Family: Nike Ajax. Launch Vehicle: Nike Ajax.
  • Test mission - . Nation: USA. Agency: US Army. Apogee: 10 km (6 mi).

1955 February 15 - . Launch Site: White Sands. LV Family: Nike Ajax. Launch Vehicle: Nike Ajax.
  • Test mission - . Nation: USA. Agency: US Army. Apogee: 10 km (6 mi).

1955 February 16 - . Launch Site: White Sands. LV Family: Nike Ajax. Launch Vehicle: Nike Ajax.
  • Test mission - . Nation: USA. Agency: US Army. Apogee: 10 km (6 mi).

1955 February 17 - . Launch Site: White Sands. LV Family: Corporal. Launch Vehicle: Corporal.
  • Test mission - . Nation: USA. Apogee: 30 km (18 mi).

1955 February 18 - . Launch Site: White Sands. LV Family: Nike Ajax. Launch Vehicle: Nike Ajax.
  • Test mission - . Nation: USA. Agency: US Army. Apogee: 10 km (6 mi).

1955 February 19 - .
  • Birth of Roberto Maria Taccino - . Nation: Italy. Related Persons: Taccino. Italian physician payload specialist astronaut, 1990-1993. Professor. Selected by the Italian Space Agency (ASI) as one of the five Italian astronaut candidates for a European Space Agency (ESA) astronaut selection..

1955 February 19 - . Launch Site: White Sands. LV Family: Nike Ajax. Launch Vehicle: Nike Ajax.
  • Test mission - . Nation: USA. Agency: US Army. Apogee: 10 km (6 mi).

1955 February 20 - .
  • Birth of Michal Fulier - . Nation: Slovakia. Related Persons: Fulier. Slovak pilot cosmonaut, 1998-1999..

1955 February 20 - . Launch Site: White Sands. LV Family: Nike Ajax. Launch Vehicle: Nike Ajax.
  • Test mission - . Nation: USA. Agency: US Army. Apogee: 10 km (6 mi).

1955 February 21 - . 18:25 GMT - . Launch Site: White Sands. Launch Complex: White Sands LC35. LV Family: Aerobee. Launch Vehicle: Aerobee RTV-N-10c.
  • Sunfollower / UVS Solar mission - . Nation: USA. Agency: NRL. Apogee: 115 km (71 mi). Solar spectrum research. Launched at 1125 local time. Reached 115 km..

1955 February 22 - . Launch Site: Edwards. LV Family: Navaho. Launch Vehicle: Navaho X-10.
  • Navaho X-10 flight 13 - . Nation: USA. Program: Navaho. Supersonic flight aborted when afterburners failed. Automated landing failed. Chute deployed during radio controlled approach, causing the vehicle to auger into the desert and be destroyed..

1955 February 23 - . Launch Site: White Sands. LV Family: Nike Ajax. Launch Vehicle: Nike Ajax.
  • Test mission - . Nation: USA. Agency: US Army. Apogee: 10 km (6 mi).

1955 February 24 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LA. Launch Pad: LA?. LV Family: Matador. Launch Vehicle: Matador.
  • Test mission - . Nation: USA. Agency: USAF. Apogee: 12 km (7 mi).

1955 February 24 - . Launch Site: White Sands. Launch Platform: B-29. LV Family: X-7. Launch Vehicle: X-7A-1.
  • ST-30 TV14 - . Nation: USA. Agency: ARDC. Apogee: 10 km (6 mi).

1955 February 25 - . Launch Site: White Sands. LV Family: Nike Ajax. Launch Vehicle: Nike Ajax.
  • Test mission - . Nation: USA. Agency: US Army. Apogee: 10 km (6 mi).

1955 February 28 - . Launch Site: White Sands. LV Family: Nike Ajax. Launch Vehicle: Nike Ajax.
  • Test mission - . Nation: USA. Agency: US Army. Apogee: 10 km (6 mi).

1955 March - . LV Family: Saturn V. Launch Vehicle: Saturn V.
  • Feasibility of million-pound-thrust liquid-fueled rocket engine established - . Nation: USA. Program: Apollo. The feasibility of a million-pound-thrust liquid-fueled rocket engine established by the Rocketdyne Division of North American Aviation, Inc..

1955 March - . LV Family: Navaho. Launch Vehicle: Navaho G-26.
  • Navaho G-26 static test article ruptures - . Nation: USA. Program: Navaho. During simulated propellant loading (with water) at Downey, a crack opened at one of the cruise stage mounting points. The water drained out of the tank, creating a vacuum, followed by implosion of the oxygen tank..

1955 March - . LV Family: Navaho. Launch Vehicle: Navaho G-38.
  • USAF inspects Navaho G-38 mockup. - . Nation: USA. Program: Navaho.

1955 March 1 - . Launch Site: Kapustin Yar. Launch Complex: Kapustin Yar V-2. LV Family: R-5. Launch Vehicle: R-5.
1955 March 1 - . Launch Site: Kapustin Yar. Launch Complex: Kapustin Yar V-2. LV Family: R-5. Launch Vehicle: R-5M.
1955 March 2 - . Launch Site: White Sands. LV Family: Nike Ajax. Launch Vehicle: Nike Ajax.
  • Test mission - . Nation: USA. Agency: US Army. Apogee: 10 km (6 mi).

1955 March 3 - . Launch Site: White Sands. LV Family: Nike Ajax. Launch Vehicle: Nike Ajax.
  • Test mission - . Nation: USA. Agency: US Army. Apogee: 10 km (6 mi).

1955 March 4 - . Launch Site: White Sands. LV Family: Nike Ajax. Launch Vehicle: Nike Ajax.
  • Test mission - . Nation: USA. Agency: US Army. Apogee: 10 km (6 mi).

1955 March 5 - . Launch Site: White Sands. LV Family: Nike Ajax. Launch Vehicle: Nike Ajax.
  • Test mission - . Nation: USA. Agency: US Army. Apogee: 10 km (6 mi).

1955 March 6 - . LV Family: Atlas. Launch Vehicle: Atlas A.
  • Atlas given top development priority. - . Nation: USA. USAF Chief of Staff, Nathan F. Twining, reported that ICBM's were receiving priority in the AF program because of known Soviet progress. Navaho, Snark, and Atlas programs accelerated..

1955 March 8 - .
  • X-2 Flight 2 - . Crew: Everest. Payload: X-2 # 1 flight 2. Nation: USA. Related Persons: Everest. Class: Manned. Type: Manned rocketplane. Spacecraft Bus: XS-1. Spacecraft: X-2 . Second glide flight. Propellant system check. Minor damage on landing..

1955 March 9 - .
  • Man in Space televised. - . Nation: USA. Related Persons: von Braun. Walt Disney's weekly television series aired the first of three programs related to spaceflight. 'Man in Space,' with Wernher Von Braun as technical adviser, drew an estimated audience of 42 million..

1955 March 10 - . Launch Site: White Sands. LV Family: Nike Ajax. Launch Vehicle: Nike Ajax.
  • Test mission - . Nation: USA. Agency: US Army. Apogee: 10 km (6 mi).

1955 March 11 - . Launch Site: Edwards. LV Family: Navaho. Launch Vehicle: Navaho X-10.
  • Navaho X-10 flight 14 - . Nation: USA. Program: Navaho. First flight of refitted s/n 3, the static test article. Vehicle exploded on gear retraction - it was found that the destruct package was wired to the gear circuit instead of the engine circuit..

1955 March 14 - . Launch Site: White Sands. LV Family: Nike Ajax. Launch Vehicle: Nike Ajax.
  • Test mission - . Nation: USA. Agency: US Army. Apogee: 10 km (6 mi).

1955 March 15 - . Launch Site: White Sands. LV Family: Nike Ajax. Launch Vehicle: Nike Ajax.
  • Test mission - . Nation: USA. Agency: US Army. Apogee: 10 km (6 mi).

1955 March 16 - .
  • Man and the Moon televised. - . Nation: USA. Related Persons: von Braun. The second Walt Disney / Wernher Von Braun program presented the powerful image of a wheelike space station as a launching point for a mission to the Moon..

1955 March 17 - . Launch Site: White Sands. LV Family: Nike Ajax. Launch Vehicle: Nike Ajax.
  • Test mission - . Nation: USA. Agency: US Army. Apogee: 10 km (6 mi).

1955 March 18 - . Launch Site: White Sands. LV Family: Nike Ajax. Launch Vehicle: Nike Ajax.
  • Test mission - . Nation: USA. Agency: US Army. Apogee: 10 km (6 mi).

1955 March 19 - . LV Family: Vanguard. Launch Vehicle: Vanguard.
  • Plan for a United States satellite in the International Geophysical Year - . Nation: USA. Related Persons: Eisenhower. Spacecraft Bus: Vanguard 2. Spacecraft: Vanguard 2. Dr. Alan T. Waterman of the National Science Foundation presented President Dwight Eisenhower with a plan to implement the United States' portion of the International Geophysical Year satellite experiment..

1955 March 19 - . 06:00 GMT - . Launch Site: White Sands. Launch Complex: White Sands LC35. LV Family: Aerobee. Launch Vehicle: Aerobee RTV-N-10.
  • Airglow Aeronomy mission - . Nation: USA. Agency: NRL. Apogee: 115 km (71 mi). Night airglow research. Launched at 2300 local time. Reached 114.3 km..

1955 March 20 - . Launch Site: White Sands. LV Family: Nike Ajax. Launch Vehicle: Nike Ajax.
  • Test mission - . Nation: USA. Agency: US Army. Apogee: 10 km (6 mi).

1955 March 21 - . Launch Site: White Sands. LV Family: Nike Ajax. Launch Vehicle: Nike Ajax.
  • Test mission - . Nation: USA. Agency: US Army. Apogee: 10 km (6 mi).

1955 March 22 - . Launch Site: White Sands. LV Family: Nike Ajax. Launch Vehicle: Nike Ajax.
  • Test mission - . Nation: USA. Agency: US Army. Apogee: 10 km (6 mi).

1955 March 23 - . Launch Site: White Sands. LV Family: Honest John. Launch Vehicle: MGR-1.
  • Test mission - . Nation: USA. Apogee: 10 km (6 mi).

1955 March 24 - . Launch Site: Edwards. LV Family: Navaho. Launch Vehicle: Navaho X-10.
  • Navaho X-10 flight 15 - . Nation: USA. Program: Navaho. Successful test of automated landing system, certifying the X-10 for operation from the Cape Canaveral skid strip..

1955 March 25 - . Launch Site: White Sands. LV Family: Honest John. Launch Vehicle: MGR-1.
  • Test mission - . Nation: USA. Apogee: 10 km (6 mi).

1955 March 26 - . Launch Site: White Sands. LV Family: Nike Ajax. Launch Vehicle: Nike Ajax.
  • Test mission - . Nation: USA. Agency: US Army. Apogee: 10 km (6 mi).

1955 March 27 - . Launch Site: White Sands. LV Family: Nike Ajax. Launch Vehicle: Nike Ajax.
  • Test mission - . Nation: USA. Agency: US Army. Apogee: 10 km (6 mi).

1955 March 28 - . Launch Site: White Sands. LV Family: Honest John. Launch Vehicle: MGR-1.
  • Test mission - . Nation: USA. Apogee: 10 km (6 mi).

1955 March 29 - . 16:47 GMT - . Launch Site: Holloman. Launch Complex: Holloman A. LV Family: Aerobee. Launch Vehicle: Aerobee RTV-A-1a.
  • Solar far ultraviolet / Lyra Alpha Solar / aeronomy mission - . Nation: USA. Agency: USAF. Apogee: 112 km (69 mi). Solar radiation research. Launched at 0947 local time. Reached 112.7 km..

1955 March 30 - . Launch Site: White Sands. LV Family: Nike Ajax. Launch Vehicle: Nike Ajax.
  • Test mission - . Nation: USA. Agency: US Army. Apogee: 10 km (6 mi).

1955 March 31 - . Launch Site: White Sands. LV Family: Nike Ajax. Launch Vehicle: Nike Ajax.
  • Test mission - . Nation: USA. Agency: US Army. Apogee: 10 km (6 mi).

1955 April - . LV Family: Atlas. Launch Vehicle: Atlas A.
  • New WDD complex - . Nation: USA. New WDD complex activated on Arbor Vitae Blvd. in Los Angeles.

1955 April - . Launch Site: Baikonur. Launch Complex: Baikonur. LV Family: R-7. Launch Vehicle: R-7.
  • Housing/road constructions starts at Tyuratam - . Nation: Russia.

1955 April 1 - . Launch Site: Kapustin Yar. Launch Complex: Kapustin Yar V-2. LV Family: R-5. Launch Vehicle: R-5M.
1955 April 1 - . Launch Site: Kapustin Yar. Launch Complex: Kapustin Yar V-2. LV Family: R-5. Launch Vehicle: R-5M.
1955 April 3 - .
  • Birth of Aleksandr Nikolaevich Yablontsev - . Nation: Poland, Russia. Related Persons: Yablontsev. Russian test pilot cosmonaut, 1989-1996..

1955 April 4 - . Launch Site: White Sands. LV Family: Honest John. Launch Vehicle: MGR-1.
  • Test mission - . Nation: USA. Apogee: 10 km (6 mi).

1955 April 5 - . Launch Site: White Sands. LV Family: Nike Ajax. Launch Vehicle: Nike Ajax.
  • Test mission - . Nation: USA. Agency: US Army. Apogee: 10 km (6 mi).

1955 April 6 - .
  • X-2 Flight 3 - . Crew: Everest. Payload: X-2 # 1 flight 3. Nation: USA. Related Persons: Everest. Class: Manned. Type: Manned rocketplane. Spacecraft Bus: XS-1. Spacecraft: X-2 . Third glide flight. Damaged on landing. Following flight, plane returned to Bell plant for extensive modifications to landing gear system to prevent further landing accidents and for installation of its rocket engine..

1955 April 7 - . Launch Site: White Sands. LV Family: Corporal. Launch Vehicle: Corporal.
  • Test mission - . Nation: USA. Apogee: 30 km (18 mi).

1955 April 7 - . Launch Site: White Sands. Launch Platform: B-29. LV Family: X-7. Launch Vehicle: X-7A-1.
  • ST-31 - . Nation: USA. Agency: ARDC. Apogee: 10 km (6 mi).

1955 April 8 - . Launch Site: Kapustin Yar. Launch Complex: Kapustin Yar V-2. LV Family: V-2. Launch Vehicle: R-1 8A11.
1955 April 8 - . 15:19 GMT - . Launch Site: Wallops Island. LV Family: Deacon. Launch Vehicle: Nike Deacon.
  • DAN-1 test - . Nation: USA. Agency: USAF. Apogee: 108 km (67 mi).

1955 April 9 - . Launch Site: Kapustin Yar. Launch Complex: Kapustin Yar V-2. LV Family: V-2. Launch Vehicle: R-1 8A11.
1955 April 10 - . Launch Site: White Sands. LV Family: Nike Ajax. Launch Vehicle: Nike Ajax.
  • Test mission - . Nation: USA. Agency: US Army. Apogee: 10 km (6 mi).

1955 April 11 - .
  • Birth of Piers John Sellers - . Nation: UK, USA. Related Persons: Sellers. British-American ecologist mission specialist astronaut. Flew on STS-112, STS-121, STS-132..

1955 April 11 - . Launch Site: White Sands. LV Family: Nike Ajax. Launch Vehicle: Nike Ajax.
  • Test mission - . Nation: USA. Agency: US Army. Apogee: 10 km (6 mi).

1955 April 12 - . Launch Site: Kapustin Yar. Launch Complex: Kapustin Yar V-2. LV Family: V-2. Launch Vehicle: R-1 8A11.
1955 April 13 - . Launch Site: White Sands. LV Family: Nike Ajax. Launch Vehicle: Nike Ajax.
  • Test mission - . Nation: USA. Agency: US Army. Apogee: 10 km (6 mi).

1955 April 14 - .
  • Wernher von Braun becomes a US citizen. - . Nation: USA. Related Persons: von Braun.

1955 April 15 - . Launch Site: Kapustin Yar. Launch Complex: Kapustin Yar V-2. LV Family: V-2. Launch Vehicle: R-1 8A11.
1955 April 19 - . Launch Site: White Sands. LV Family: Honest John. Launch Vehicle: MGR-1.
  • Test mission - . Nation: USA. Apogee: 10 km (6 mi).

1955 April 20 - .
  • Birth of Donald Roy Pettit - . Nation: USA. Related Persons: Pettit. American chemical engineer mission specialist astronaut. Flew on ISS EO-6, STS-126. First NASA astronaut to return to earth in a Russian spacecraft..

1955 April 20 - . 06:51 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC6. LV Family: Redstone. Launch Vehicle: Redstone. FAILURE: Guidance system malfunction at 310 sec due to air pressure loss. ST-80 lateral guidance only..
  • Nation: USA. Agency: US Army. Apogee: 90 km (55 mi). Missile test failure. Missed aimpoint by 7,000 m..

1955 April 21 - . 15:58 GMT - . Launch Site: Holloman. Launch Complex: Holloman A. LV Family: Aerobee. Launch Vehicle: Aerobee Hi.
  • AJ11-6 engine test - . Nation: USA. Agency: USAF. Apogee: 198 km (123 mi). First launcing of USAF Aerobee-Hi sounding rocket. Rocket test, 98 kg payload. Launched at 0858 local time. Reached 198 km..

1955 April 22 - . Launch Site: White Sands. LV Family: Nike Ajax. Launch Vehicle: Nike Ajax.
  • Test mission - . Nation: USA. Agency: US Army. Apogee: 10 km (6 mi).

1955 April 26 - . Launch Site: White Sands. LV Family: Nike Ajax. Launch Vehicle: Nike Ajax.
  • Test mission - . Nation: USA. Agency: US Army. Apogee: 10 km (6 mi).

1955 April 27 - . Launch Site: White Sands. LV Family: Nike Ajax. Launch Vehicle: Nike Ajax.
  • Test mission - . Nation: USA. Agency: US Army. Apogee: 10 km (6 mi).

1955 April 28 - . Launch Site: White Sands. LV Family: Nike Ajax. Launch Vehicle: Nike Ajax.
  • Test mission - . Nation: USA. Agency: US Army. Apogee: 10 km (6 mi).

1955 April 29 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LA. Launch Pad: LA?. LV Family: Matador. Launch Vehicle: Matador.
  • Test mission - . Nation: USA. Agency: USAF. Apogee: 12 km (7 mi).

1955 April 29 - . Launch Site: White Sands. Launch Platform: B-29. LV Family: X-7. Launch Vehicle: X-7A-1.
  • 32 - . Nation: USA. Agency: ARDC. Apogee: 10 km (6 mi).

1955 May 1 - . Launch Site: Kapustin Yar. LV Family: R-11. Launch Vehicle: R-11FM.
1955 May 1 - . Launch Site: Kapustin Yar. LV Family: R-11. Launch Vehicle: R-11FM.
1955 May 1 - . Launch Site: Kapustin Yar. LV Family: R-11. Launch Vehicle: R-11FM.
1955 May 1 - . Launch Site: Kapustin Yar. Launch Complex: Kapustin Yar V-2. LV Family: R-5. Launch Vehicle: R-5M.
1955 May 1 - . Launch Site: Kapustin Yar. Launch Complex: Kapustin Yar V-2. LV Family: R-5. Launch Vehicle: R-5M.
1955 May 2 - . LV Family: Titan. Launch Vehicle: Titan I.
  • Titan 1 begun. - . Nation: USA. USAF approved Western Development Division proposals to inaugurate a second ICBM airframe, which became the Titan ICBM (SM-68)..

1955 May 3 - . Launch Site: White Sands. LV Family: Honest John. Launch Vehicle: MGR-1.
  • Test mission - . Nation: USA. Apogee: 10 km (6 mi).

1955 May 4 - .
  • Birth of Renate Luise Bruemmer - . Nation: Switzerland. Related Persons: Bruemmer. Swiss engineer payload specialist astronaut, 1987-1993. Meterologist..

1955 May 4 - . Launch Site: White Sands. LV Family: Nike Ajax. Launch Vehicle: Nike Ajax.
  • Test mission - . Nation: USA. Agency: US Army. Apogee: 10 km (6 mi).

1955 May 5 - . Launch Site: White Sands. LV Family: Nike Ajax. Launch Vehicle: Nike Ajax.
  • Test mission - . Nation: USA. Agency: US Army. Apogee: 10 km (6 mi).

1955 May 6 - .
  • Birth of Dr Donald Alan 'Don' Thomas - . Nation: USA. Related Persons: Thomas. American materials scientist mission specialist astronaut. Flew on STS-65, STS-70, STS-83, STS-94..

1955 May 6 - . Launch Site: White Sands. LV Family: Nike Ajax. Launch Vehicle: Nike Ajax.
  • Test mission - . Nation: USA. Agency: US Army. Apogee: 10 km (6 mi).

1955 May 7 - . Launch Site: White Sands. LV Family: Nike Ajax. Launch Vehicle: Nike Ajax.
  • Test mission - . Nation: USA. Agency: US Army. Apogee: 10 km (6 mi).

1955 May 8 - . Launch Site: White Sands. LV Family: Nike Ajax. Launch Vehicle: Nike Ajax.
  • Test mission - . Nation: USA. Agency: US Army. Apogee: 10 km (6 mi).

1955 May 9 - . Launch Site: White Sands. LV Family: Nike Ajax. Launch Vehicle: Nike Ajax.
  • Test mission - . Nation: USA. Agency: US Army. Apogee: 10 km (6 mi).

1955 May 10 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LA. Launch Pad: LA?. LV Family: Matador. Launch Vehicle: Matador.
  • Test mission - . Nation: USA. Agency: USAF. Apogee: 12 km (7 mi).

1955 May 11 - . Launch Site: White Sands. LV Family: Nike Ajax. Launch Vehicle: Nike Ajax.
  • Test mission - . Nation: USA. Agency: US Army. Apogee: 10 km (6 mi).

1955 May 12 - .
  • General Operational Requirement 12 for a piloted, high-altitude, reconnaissance weapon system available by 1959. - . Nation: USA. Spacecraft: Bomi, Dynasoar. Air Force headquarters announced General Operational Requirement 12 for a piloted, high-altitude, reconnaissance weapon system available by 1959..

1955 May 13 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC1. Launch Pad: LC1/2?. LV Family: Snark. Launch Vehicle: Snark.
  • Test mission - . Nation: USA. Agency: USAF. Apogee: 10 km (6 mi).

1955 May 14 - .
  • Warsaw Pact, east European mutual defense agreement, signed - . Nation: Russia.

1955 May 15 - . Launch Site: White Sands. LV Family: Nike Ajax. Launch Vehicle: Nike Ajax.
  • Test mission - . Nation: USA. Agency: US Army. Apogee: 10 km (6 mi).

1955 May 17 - . Launch Site: White Sands. LV Family: Nike Ajax. Launch Vehicle: Nike Ajax.
  • Test mission - . Nation: USA. Agency: US Army. Apogee: 10 km (6 mi).

1955 May 19 - . Launch Site: White Sands. LV Family: Nike Ajax. Launch Vehicle: Nike Ajax.
  • Test mission - . Nation: USA. Agency: US Army. Apogee: 10 km (6 mi).

1955 May 21 - . Launch Site: Kapustin Yar. LV Family: R-11. Launch Vehicle: R-11FM.
1955 May 23 - . LV Family: Buran M-40. Launch Vehicle: Buran RSS-52.
  • RS ramjet-powered Mach 3 intercontinental aircraft - . Nation: Russia. Related Persons: Tsybin. P V Tsybinís OKB-256 selected to build the RS ramjet-powered Mach 3 intercontinental reconnaissance/strike aircraft. The aircraft, air-launched from a Tu-95N bomber, was in competition with the V M Myasishchev (OKB-23) RSS-52 system..

1955 May 23 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral. LV Family: Redstone. Launch Vehicle: Redstone.
  • Project Orbiter plans. - . Nation: USA. Project Orbiter Conference was held at Redstone Arsenal and at Cape Canaveral..

1955 May 23 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC3. LV Family: X-17. Launch Vehicle: X-17 QTV.
  • Test mission - . Nation: USA. Agency: USAF. Apogee: 10 km (6 mi).

1955 May 23 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC3. LV Family: X-17. Launch Vehicle: X-17 QTV.
  • Test mission - . Nation: USA. Agency: USAF. Apogee: 11 km (6 mi).

1955 May 24 - . Launch Site: White Sands. LV Family: Nike Ajax. Launch Vehicle: Nike Ajax.
  • Test mission - . Nation: USA. Agency: US Army. Apogee: 10 km (6 mi).

1955 May 24 - . Launch Site: White Sands. Launch Platform: B-29. LV Family: X-7. Launch Vehicle: X-7A-3.
  • Nation: USA. Agency: ARDC. Apogee: 10 km (6 mi).

1955 May 25 - . 04:24 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC6. LV Family: Redstone. Launch Vehicle: Redstone. FAILURE: Guidance system malfunction at 155, sec due to wiring error..
  • Nation: USA. Agency: US Army. Apogee: 90 km (55 mi). Missile test failure. Missed aimpoint by 17,200 m..

1955 May 26 - . Launch Site: White Sands. LV Family: Nike Ajax. Launch Vehicle: Nike Ajax.
  • Test mission - . Nation: USA. Agency: US Army. Apogee: 10 km (6 mi).

1955 May 27 - . Launch Site: White Sands. LV Family: Nike Ajax. Launch Vehicle: Nike Ajax.
  • Test mission - . Nation: USA. Agency: US Army. Apogee: 10 km (6 mi).

1955 May 30 - .
  • Korolev rehabilitated. - . Nation: Russia. Related Persons: Korolev. Seventeen years after his arrest, and after ten years as head of the Soviet rocketry program, Korolev's arrest and imprisonment during Stalin's purges are rescinded..

1955 May 31 - . Launch Site: White Sands. LV Family: Nike Ajax. Launch Vehicle: Nike Ajax.
  • Test mission - . Nation: USA. Agency: US Army. Apogee: 10 km (6 mi).

1955 June 1 - .
  • Rocket test stand improvements. - . Nation: USA. First experimental use at NACA Lewis Laboratory of a "boot-strap" rocket-exhaust powered ejector to permit rocket testing at simulated high-altitude conditions without complicated and expensive exhausting facilities..

1955 June - . LV Family: Navaho. Launch Vehicle: Navaho G-26.
  • First pair of Navaho ramjets accepted by Air Force - . Nation: USA. Program: Navaho.

1955 June 1 - .
  • NERVA project begins. - . Nation: USA. Program: NERVA.

    NACA Lewis Laboratory presented ARDC with results of air-breathing nuclear propulsion systems for manned applications, leading to AEC-AF Pluto project, and also initiated comparison of nuclear rocket with chemical systems for ICBM, a concept of use to Rover program.


1955 June 1 - . Launch Site: Kapustin Yar. LV Family: R-11. Launch Vehicle: R-11FM.
1955 June 1 - . Launch Site: Kapustin Yar. LV Family: R-11. Launch Vehicle: R-11FM.
1955 June 1 - . Launch Site: Kapustin Yar. LV Family: R-11. Launch Vehicle: R-11FM.
1955 June 2 - . Launch Site: White Sands. LV Family: Honest John. Launch Vehicle: MGR-1.
  • Test mission - . Nation: USA. Apogee: 10 km (6 mi).

1955 June 3 - . Launch Site: White Sands. LV Family: Honest John. Launch Vehicle: MGR-1.
  • Test mission - . Nation: USA. Apogee: 10 km (6 mi).

1955 June 3 - . Launch Site: White Sands. LV Family: Honest John. Launch Vehicle: MGR-1.
  • Test mission - . Nation: USA. Apogee: 10 km (6 mi).

1955 June 3 - . Launch Site: White Sands. Launch Platform: B-29. LV Family: X-7. Launch Vehicle: X-7A-3.
  • Nation: USA. Agency: ARDC. Apogee: 10 km (6 mi).

1955 June 6 - . Launch Site: Kapustin Yar. Launch Complex: Kapustin Yar V-2. LV Family: R-5. Launch Vehicle: R-5M.
1955 June 7 - . Launch Site: White Sands. LV Family: Nike Ajax. Launch Vehicle: Nike Ajax.
  • Test mission - . Nation: USA. Agency: US Army. Apogee: 10 km (6 mi).

1955 June 9 - . Launch Site: White Sands. LV Family: Nike Ajax. Launch Vehicle: Nike Ajax.
  • Test mission - . Nation: USA. Agency: US Army. Apogee: 10 km (6 mi).

1955 June 10 - . Launch Site: White Sands. LV Family: Nike Ajax. Launch Vehicle: Nike Ajax.
  • Test mission - . Nation: USA. Agency: US Army. Apogee: 10 km (6 mi).

1955 June 11 - . Launch Site: White Sands. LV Family: Nike Ajax. Launch Vehicle: Nike Ajax.
  • Test mission - . Nation: USA. Agency: US Army. Apogee: 10 km (6 mi).

1955 June 12 - . Launch Site: White Sands. LV Family: Nike Ajax. Launch Vehicle: Nike Ajax.
  • Test mission - . Nation: USA. Agency: US Army. Apogee: 10 km (6 mi).

1955 June 13 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC3. LV Family: X-17. Launch Vehicle: X-17 HTV. FAILURE: Failure.
  • Test mission - . Nation: USA. Agency: USAF. Apogee: 0 km (0 mi).

1955 June 14 - . Launch Site: White Sands. LV Family: Nike Ajax. Launch Vehicle: Nike Ajax.
  • Test mission - . Nation: USA. Agency: US Army. Apogee: 10 km (6 mi).

1955 June 15 - . LV Family: Redstone. Launch Vehicle: Redstone.
  • First Redstone production contract. - . Nation: USA. Chrysler Corporation received the first industrial contract for the Redstone..

1955 June 16 - . 01:11 GMT - . Launch Site: Holloman. Launch Complex: Holloman A. LV Family: Aerobee. Launch Vehicle: Aerobee AJ10-27.
  • Classified mission - . Nation: USA. Agency: USAF. Apogee: 203 km (126 mi). Special classified flight research. Launched at 1811 local time. Reached 202.8 km..

1955 June 18 - . Launch Site: Kapustin Yar. Launch Complex: Kapustin Yar V-2. LV Family: V-2. Launch Vehicle: R-1 8A11.
1955 June 19 - . Launch Site: Baikonur. Launch Complex: Baikonur. LV Family: R-7. Launch Vehicle: R-7.
  • First surveyors arrive at Tyuratam. - . Nation: Russia.

1955 June 20 - .
  • Birth of David Paul Jr Staib - . Nation: USA. Related Persons: Staib. American engineer military spaceflight engineer astronaut, 1985-1988. Left the astronaut corps in July 1988. Later worked at the Pentagon, then at Colorado Springs..

1955 June 20 - . Launch Site: Wallops Island. LV Family: Deacon. Launch Vehicle: Deacon.
  • E5 model test flight - . Nation: USA. Agency: NASA. Apogee: 10 km (6 mi).

1955 June 21 - . Launch Site: White Sands. Launch Platform: B-29. LV Family: X-7. Launch Vehicle: X-7A-3.
  • Nation: USA. Agency: ARDC. Apogee: 10 km (6 mi).

1955 June 22 - . Launch Site: Kapustin Yar. Launch Complex: Kapustin Yar V-2. LV Family: R-5. Launch Vehicle: R-5M.
1955 June 23 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC3. LV Family: X-17. Launch Vehicle: X-17 HTV.
  • Test mission - . Nation: USA. Agency: USAF. Apogee: 20 km (12 mi).

1955 June 23 - . Launch Site: Kapustin Yar. Launch Complex: Kapustin Yar V-2. LV Family: R-5. Launch Vehicle: R-5M.
1955 June 24 - . Launch Site: Kapustin Yar. Launch Complex: Kapustin Yar V-2. LV Family: V-2. Launch Vehicle: R-1 8A11.
1955 June 24 - . 18:04 GMT - . Launch Site: Wallops Island. LV Family: Deacon. Launch Vehicle: Nike Deacon.
  • DAN-2 Aeronomy mission - . Nation: USA. Agency: USAF. Apogee: 105 km (65 mi). First Nike-Deacon sounding rocket launched at Wallops Island in cooperative USAF-NACA program of upper air density measurements..

1955 June 28 - . Launch Site: Wallops Island. LV Family: Deacon. Launch Vehicle: Double Deacon.
  • D35 Model test flight - . Nation: USA. Agency: NASA. Apogee: 10 km (6 mi).

1955 June 29 - .
  • Birth of Charles Joseph 'Charlie' Precourt - . Nation: USA. Related Persons: Precourt. American test pilot astronaut. Flew on STS-55, STS-71, STS-84, STS-91..

1955 June 30 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC3. LV Family: X-17. Launch Vehicle: X-17 HTV.
  • Test mission - . Nation: USA. Agency: USAF. Apogee: 9.00 km (5.50 mi).

1955 July 1 - . LV Family: Rockoon. Launch Vehicle: Rockoon.
  • Rockoon launches. - . Nation: USA.

    Instrumented Loki I and Deacon rockets were successfully balloon launched (Rockoons) from shipboard off the coast of Greenland in cosmic-ray studies by State University of Iowa research group. Army Ordnance supplied JPL-developed Loki rockets and ONR sponsored the project.


1955 July 1 - . LV Family: Jupiter. Launch Vehicle: Jupiter IRBM.
  • Jupiter IRBM proposed. - . Nation: USA. Huntsville proposes Jupiter 1500 miles range/2500 lb payload. AF proposes Thor. Both authorized. Jupiter also ship-launch capable..

1955 July 1 - . Launch Site: Kapustin Yar. Launch Complex: Kapustin Yar V-2. LV Family: V-2. Launch Vehicle: R-2.
1955 July 1 - . Launch Site: Kapustin Yar. LV Family: R-11. Launch Vehicle: R-11FM.
1955 July 1 - . Launch Site: Kapustin Yar. LV Family: R-11. Launch Vehicle: R-11FM.
1955 July 1 - . Launch Site: Kapustin Yar. LV Family: R-11. Launch Vehicle: R-11FM.
1955 July 1 - . Launch Site: Kapustin Yar. Launch Complex: Kapustin Yar V-2. LV Family: R-5. Launch Vehicle: R-5M.
1955 July 8 - .
  • First supersonic rocket sled tests. - . Nation: USA. First test run was held on the Supersonic Military Air Research Track (SMART), a 12,000-foot track for rocket-propelled sleds at Hurricane, Utah..

1955 July 8 - . 08:39 GMT - . Launch Site: White Sands. Launch Complex: White Sands LC35. LV Family: Aerobee. Launch Vehicle: Aerobee RTV-N-10.
  • Mass spectrometers Ionosphere mission - . Nation: USA. Agency: NRL. Apogee: 113 km (70 mi). Ion composition research. Launched at 0139 local time. Reached 113.4 km..

1955 July 9 - .
  • Birth of Sergei Vladimirovich Krichevsky - . Nation: Russia, Ukraine. Related Persons: Krichevsky. Ukrainian pilot cosmonaut, 1989-1998..

1955 July 9 - . Launch Site: Kapustin Yar. Launch Complex: Kapustin Yar V-2. LV Family: R-5. Launch Vehicle: R-5M.
1955 July 13 - . LV Family: R-11. Launch Vehicle: R-11.
  • R-11 accepted for military service - . Nation: Russia.

    Following a protracted two-year test series, the design was finally accepted for military service on 13 July 1955. In anticipation of this formal decree, in June of 1955 Makeyev was made Chief Designer at SKB-385, responsible for engineering of the R-11 and future small land and sea based ballistic missiles. SKB-385 was given complete responsibility for development of the sub-launched R-11FM in August 1955.


1955 July 14 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC3. LV Family: X-17. Launch Vehicle: X-17 HTV.
  • Test mission - . Nation: USA. Agency: USAF. Apogee: 10 km (6 mi).

1955 July 14 - . Launch Site: White Sands. Launch Platform: B-29. LV Family: X-7. Launch Vehicle: X-7A-3.
  • Nation: USA. Agency: ARDC. Apogee: 10 km (6 mi).

1955 July 18 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LA. Launch Pad: LA?. LV Family: Matador. Launch Vehicle: Matador.
  • Test mission - . Nation: USA. Agency: USAF. Apogee: 12 km (7 mi).

1955 July 20 - .
  • X-1A Flight 25 - . Crew: Walker, Joseph. Payload: X-1A flight 25. Nation: USA. Related Persons: Walker, Joseph. Class: Manned. Type: Manned rocketplane. Spacecraft Bus: XS-1. Spacecraft: X-1A. NACA flight 1. Familiarization. Walker attained mach 1.45 at 13725 m. Noted severe aileron buzz at mach 0.90 to 0.92..

1955 July 21 - .
  • Birth of Frank James Casserino - . Nation: USA. Related Persons: Casserino. American engineer military spaceflight engineer astronaut, 1979-1985..

1955 July 22 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LA. Launch Pad: LA?. LV Family: Matador. Launch Vehicle: Matador.
  • Test mission - . Nation: USA. Agency: USAF. Apogee: 12 km (7 mi).

1955 July 25 - . Launch Site: Kapustin Yar. Launch Complex: Kapustin Yar V-2. LV Family: V-2. Launch Vehicle: R-1 8A11.
1955 July 26 - . Launch Site: Kapustin Yar. Launch Complex: Kapustin Yar V-2. LV Family: V-2. Launch Vehicle: R-1 8A11.
1955 July 27 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC3. LV Family: Bomarc. Launch Vehicle: Bomarc. FAILURE: Failure.
  • Test mission - . Nation: USA. Agency: USAF. Apogee: 20 km (12 mi).

1955 July 29 - . LV Family: Vanguard. Launch Vehicle: Vanguard.
  • Eisenhower approves earth satellites for IGY - . Nation: USA. Related Persons: Eisenhower. Spacecraft Bus: Vanguard 2. Spacecraft: Vanguard 2. President Eisenhower endorsed the IGY proposal for the launching of small earth-circling satellites..

1955 July 29 - . Launch Site: Kapustin Yar. Launch Complex: Kapustin Yar V-2. LV Family: V-2. Launch Vehicle: R-1 8A11.
1955 July 30 - . Launch Site: Kapustin Yar. LV Family: R-11. Launch Vehicle: R-11FM.
1955 August - . LV Family: R-11. Launch Vehicle: R-11FM.
  • SKB-385 given complete responsibility for development of the sub-launched R-11FM - . Nation: Russia. This derivative of the land-based R-11 ('Scud') was the first Soviet SLBM..

1955 August - . Launch Site: Baikonur. Launch Complex: Baikonur. LV Family: R-7. Launch Vehicle: R-7.
  • LC 1 launch pad excavation starts - . Nation: Russia.

1955 August 1 - . LV Family: Vanguard. Launch Vehicle: Vanguard.
  • Vanguard selected to launch first US satellite. - . Nation: USA. Related Persons: von Braun. Program: Vanguard. Class: Technology. Type: Navigation technology satellite. Spacecraft Bus: Vanguard 1. Spacecraft: Vanguard 1. Ad Hoc Committee on Special Capabilities rejects Army/Von Brauns's Project Orbiter (Redstone) and USAF Atlas proposals; selects Navy/Vanguard for first US satellite..

1955 August 1 - . Launch Site: Kapustin Yar. Launch Complex: Kapustin Yar V-2. LV Family: V-2. Launch Vehicle: R-2.
1955 August 1 - . Launch Site: Kapustin Yar. Launch Complex: Kapustin Yar V-2. LV Family: V-2. Launch Vehicle: R-1 8A11.
1955 August 1 - . Launch Site: Kapustin Yar. Launch Complex: Kapustin Yar V-2. LV Family: R-5. Launch Vehicle: R-5M.
1955 August 4 - .
  • Birth of Andrew Michael 'Andy' Allen - . Nation: USA. Related Persons: Allen, Andy. American test pilot astronaut. Flew on STS-46, STS-62, STS-75. US Marine Corps.

1955 August 4 - .
  • Birth of Charles Donald 'Sam' Gemar - . Nation: USA. Related Persons: Gemar. American engineer mission specialist astronaut. Flew on STS-38, STS-48, STS-62. US Army.

1955 August 8 - .
  • X-1A Flight 26 - . Crew: Walker, Joseph. Payload: X-1A flight 26. Nation: USA. Related Persons: Walker, Joseph. Class: Manned. Type: Manned rocketplane. Spacecraft Bus: XS-1. Spacecraft: X-1A. Planned at NACA flight 2. Shortly before launch from B-29, X-1A suffered low-order explosion, later traced to detonation of Ulmer leather gaskets. Walker exited into B-29 bomb bay..

1955 August 9 - . Launch Site: Kapustin Yar. Launch Complex: Kapustin Yar V-2. LV Family: R-5. Launch Vehicle: R-5M.
1955 August 11 - . Launch Site: White Sands. Launch Platform: B-29. LV Family: X-7. Launch Vehicle: X-7A-3.
  • Nation: USA. Agency: ARDC. Apogee: 10 km (6 mi).

1955 August 16 - . Launch Site: NAOTS. Launch Platform: F2H2. LV Family: FFAR. Launch Vehicle: Rockair.
  • Test mission - . Nation: USA. Agency: USN. Apogee: 55 km (34 mi).

1955 August 16 - . Launch Site: NAOTS. Launch Platform: F2H2. LV Family: FFAR. Launch Vehicle: Rockair. FAILURE: Failure.
  • Test mission - . Nation: USA. Agency: USN. Apogee: 50 km (31 mi).

    First successful demonstration of Rockair technique (resarch rocket launched from aircraft) by ONR and University of Maryland team, a 2.75-inch FFAR rocket fired from a Navy F2H-2 aircraft to an altitude of approximately 180,000 feet. Rockair technique first suggested by Herman Oberth (1929) and others.


1955 August 19 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral RW30/12. LV Family: Navaho. Launch Vehicle: Navaho X-10.
  • Navaho X-10 flight 16 - . Nation: USA. Agency: USAF. Program: Navaho. Demonstrated planned automated landing, but drag chute did not deploy after landing. The vehicle overran the skid strip, the nosewheel collapsed in the sand in the overrun, the tanks ruptured, and the vehicle burned..

1955 August 24 - . LV Family: Redstone. Launch Vehicle: Jupiter C.
  • Redstone recommended as satellite launcher. - . Payload: Explorer A. Nation: USA. Related Persons: von Braun. Program: Explorer. Class: Earth. Type: Magnetosphere satellite. Spacecraft Bus: Explorer. Spacecraft: Explorer A.

    Research and development Policy Council (DOD) unanimously recommended that the time-risk factor in the scientific satellite program be brought to the attention of the Secretary of the Defense for determination as to whether a Redstone backup program was indicated.


1955 August 24 - . Launch Site: Kapustin Yar. Launch Complex: Kapustin Yar V-2. LV Family: V-2. Launch Vehicle: R-1 8A11.
1955 August 25 - . Launch Site: Kapustin Yar. Launch Complex: Kapustin Yar V-2. LV Family: V-2. Launch Vehicle: R-1 8A11.
1955 August 25 - . Launch Site: White Sands. Launch Platform: B-29. LV Family: X-7. Launch Vehicle: X-7A-3.
  • Nation: USA. Agency: ARDC. Apogee: 10 km (6 mi).

1955 August 26 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC3. LV Family: X-17. Launch Vehicle: X-17.
  • Test mission - . Nation: USA. Agency: USAF. Apogee: 3.00 km (1.80 mi).

1955 August 31 - . 00:11 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC6. LV Family: Redstone. Launch Vehicle: Redstone. FAILURE: Excessive temperature in tail section caused malfunction of jet vane control..
  • Nation: USA. Agency: US Army. Apogee: 90 km (55 mi). Missile test failure. Missed aimpoint by 540 m..

1955 September - .
  • Air Force selected North American to develop and build three X-15 research aircraft. - . Nation: USA. Spacecraft Bus: X-15. Spacecraft: X-15A. A North American team, headed by Chief Project Engineer Charles Feltz, designed the aircraft, with technical guidance from the NACA's Langley Aeronautical Laboratory and High-Speed Flight Station..

1955 September - . LV Family: Burya La-350. Launch Vehicle: Burya La-350.
  • Burya preliminary design completed - . Nation: Russia. Related Persons: Lavochkin. Program: Navaho. The Lavochkin team completed preliminary design of the intercontinental Mach 3 cruise missile..

1955 September 1 - . Launch Site: Kapustin Yar. Launch Complex: Kapustin Yar V-2. LV Family: R-5. Launch Vehicle: R-5M.
1955 September 1 - . Launch Site: Kapustin Yar. Launch Complex: Kapustin Yar V-2. LV Family: R-5. Launch Vehicle: R-5M.
1955 September 1 - . Launch Site: Kapustin Yar. Launch Complex: Kapustin Yar V-2. LV Family: R-5. Launch Vehicle: R-5M.
1955 September 6 - .
  • Birth of Carl Erwin Walz - . Nation: USA. Related Persons: Walz. American test pilot mission specialist astronaut. Flew on STS-51, STS-65, STS-79, ISS EO-4..

1955 September 7 - . Launch Site: White Sands. Launch Platform: B-29. LV Family: X-7. Launch Vehicle: X-7A-3.
  • Nation: USA. Agency: ARDC. Apogee: 10 km (6 mi).

1955 September 9 - . LV Family: Vanguard. Launch Vehicle: Vanguard.
  • Project Vanguard began operations. - . Nation: USA. Spacecraft Bus: Vanguard 2. Spacecraft: Vanguard 2.

    The Department of Defense's Stewart Committee reviewed the alternatives for an IGY satellite program: wait for the development of an Atlas launcher, use a modified Redstone, or develop a rocket derived from the Viking missile. The committee voted seven to two in favor of abandoning Project Orbiter (Redstone) and developing Vanguard (Viking derivative with and Aerobee-Hi upper stage). Secretary Donald Quarles ruled with the committee majority in the Department of Defense Policy Committee, which approved the decision. The Department of Defense wrote a letter to the Department of Navy authorizing the Navy Research Laboratory to proceed with the Vanguard proposal. The responsibility for carrying out the program was placed with the Office of Naval Research. Objectives of Project Vanguard were: to develop and procure a satellite-launching vehicle; to place at least one satellite in orbit around the earth during IGY; to accomplish one scientific experiment; and to track flight to demonstrate the satellite actually attained orbit.


1955 September 9 - . Launch Site: White Sands. Launch Platform: B-29. LV Family: X-7. Launch Vehicle: X-7A-3.
  • Nation: USA. Agency: ARDC. Apogee: 10 km (6 mi).

1955 September 12 - . Launch Site: White Sands. Launch Platform: B-29. LV Family: X-7. Launch Vehicle: X-7A-3.
  • Nation: USA. Agency: ARDC. Apogee: 10 km (6 mi).

1955 September 12 - . 14:32 GMT - . Launch Site: White Sea Launch Area. Launch Pad: 65.5 N x 38.0 E. Launch Platform: B-67. LV Family: R-11. Launch Vehicle: R-11FM.
  • Nation: Russia. Agency: Korolev Design Bureau. Apogee: 150 km (90 mi). The third test series was conducted from the Project 611 submarine B-67 through 13 October 1955 in the White Sea. This demonstrated launches from a pitching surfaced vessel and a total range of 150 km..

1955 September 14 - . 13:30 GMT - . Launch Site: Holloman. Launch Complex: Holloman A. LV Family: Aerobee. Launch Vehicle: Aerobee AJ10-27.
  • UM wind vanes Test / aeronomy mission - . Nation: USA. Agency: USAF. Apogee: 95 km (59 mi). Rocket aerodynamics test. Launched at 0630 local time. Reached 95 km..

1955 September 15 - . Launch Site: Wallops Island. LV Family: Honest John. Launch Vehicle: HJ Nike. FAILURE: Failure.
  • Test launch - . Nation: USA. Agency: NASA. Apogee: 10 km (6 mi).

1955 September 17 - . LV Family: V-2. Launch Vehicle: DF-1.
  • Tsien Hsue-shen deported from the United States. - . Nation: China. Related Persons: Tsien. Program: Long March.

    After five years of wrangling, and secret talks in Geneva between the Red Chinese and US governments, Tsien is deported from the United States. Upon arrival in China, he was immediately put to work as head of the Chinese missile program. He had to introduce US systems engineering approaches to Chinese engineers, and build the technical infrastructure to enable China to build rockets.


1955 September 20 - . Launch Site: White Sands. Launch Platform: B-29. LV Family: X-7. Launch Vehicle: X-7A-3.
  • Nation: USA. Agency: ARDC. Apogee: 10 km (6 mi).

1955 September 21 - .
  • Bomi contract extended as Special Reconnaissance System 118P. - . Nation: USA. Spacecraft: Bomi, Dynasoar. The Bomi contract of the Bell Aircraft Company was extended as a study for the Special Reconnaissance System 118P..

1955 September 21 - .
  • Birth of Richard James 'Rick' Hieb - . Nation: USA. Related Persons: Hieb. American engineer mission specialist astronaut. Flew on STS-39, STS-49, STS-65..

1955 September 22 - . 05:51 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC6. LV Family: Redstone. Launch Vehicle: Jupiter A. FAILURE: Excessive temperature in tail section caused malfunction of control.. Failed Stage: 1.
  • Nation: USA. Agency: US Army. Apogee: 10 km (6 mi).

    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.


1955 September 23 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC3. LV Family: X-17. Launch Vehicle: X-17. FAILURE: Failure.
  • Test mission - . Nation: USA. Agency: USAF. Apogee: 5.00 km (3.10 mi).

1955 September 23 - . 20:34 GMT - . Launch Pad: Atlantic Ocean, 42.7 N x 66.2 W. Launch Platform: AGB-5. LV Family: Loki. Launch Vehicle: Loki Rockoon.
  • SUI 38 Ionosphere / aeronomy mission - . Nation: USA. Agency: SUI. Apogee: 100 km (60 mi). Launched at Atlantic Ocean Launch Site 13 Launch Point 1 - - Latitude: 42.67 N - Longitude: 66.18 W..

1955 September 24 - . 16:35 GMT - . Launch Pad: Atlantic Ocean, 44.6 N x 60.7 W. Launch Platform: AGB-5. LV Family: Deacon. Launch Vehicle: Deacon Rockoon.
  • SUI 39 Ionosphere / aeronomy mission - . Nation: USA. Agency: SUI. Apogee: 100 km (60 mi). Launched at Atlantic Ocean Launch Site 13 Launch Point 2 - - Latitude: 44.58 N - Longitude: 60.73 W..

1955 September 24 - . 21:09 GMT - . Launch Pad: Atlantic Ocean, 45.3 N x 59.4 W. Launch Platform: AGB-5. LV Family: Loki. Launch Vehicle: Loki Rockoon.
  • SUI 40 Ionosphere / aeronomy mission - . Nation: USA. Agency: SUI. Apogee: 100 km (60 mi). Launched at Atlantic Ocean Launch Site 13 Launch Point 3 - - Latitude: 45.28 N - Longitude: 59.42 W..

1955 September 25 - . 20:39 GMT - . Launch Pad: Atlantic Ocean, 47.7 N x 52.5 W. Launch Platform: AGB-5. LV Family: Loki. Launch Vehicle: Loki Rockoon. FAILURE: Failure.
  • SUI 41 Ionosphere / aeronomy mission - . Nation: USA. Agency: SUI. Apogee: 11 km (6 mi). Launched at Atlantic Ocean Launch Site 13 Launch Point 4 - - Latitude: 47.73 N - Longitude: 52.50 W..

1955 September 27 - . Launch Site: White Sands. Launch Platform: B-29. LV Family: X-7. Launch Vehicle: X-7A-3.
  • Nation: USA. Agency: ARDC. Apogee: 10 km (6 mi).

1955 September 27 - . 20:54 GMT - . Launch Pad: Atlantic Ocean, 57.9 N x 54.2 W. Launch Platform: AGB-5. LV Family: Deacon. Launch Vehicle: Deacon Rockoon.
  • SUI 42 Ionosphere / aeronomy mission - . Nation: USA. Agency: SUI. Apogee: 100 km (60 mi). Launched at Atlantic Ocean Launch Site 13 Launch Point 5 - - Latitude: 57.85 N - Longitude: 54.23 W..

1955 September 28 - . 01:13 GMT - . Launch Pad: Atlantic Ocean, 58.5 N x 54.0 W. Launch Platform: AGB-5. LV Family: Loki. Launch Vehicle: Loki Rockoon. FAILURE: Failure.
  • SUI 43 Ionosphere / aeronomy mission - . Nation: USA. Agency: SUI. Apogee: 100 km (60 mi). Launched at Atlantic Ocean Launch Site 13 Launch Point 6 - - Latitude: 58.45 N - Longitude: 53.95 W..

1955 September 28 - . 14:54 GMT - . Launch Pad: Atlantic Ocean, 61.2 N x 55.3 W. Launch Platform: AGB-5. LV Family: Deacon. Launch Vehicle: Deacon Rockoon.
  • SUI 44 Ionosphere / aeronomy mission - . Nation: USA. Agency: SUI. Apogee: 100 km (60 mi). Launched at Atlantic Ocean Launch Site 13 Launch Point 7 - - Latitude: 61.17 N - Longitude: 55.25 W..

1955 September 28 - . 19:22 GMT - . Launch Pad: Atlantic Ocean, 62.0 N x 56.1 W. Launch Platform: AGB-5. LV Family: Deacon. Launch Vehicle: Deacon-Loki Rockoon. FAILURE: Failure.
  • SUI 45 test - . Nation: USA. Agency: SUI. Apogee: 102 km (63 mi). Launched at Atlantic Ocean Launch Site 13 Launch Point 8 - - Latitude: 62.03 N - Longitude: 56.08 W..

1955 September 29 - . 13:42 GMT - . Launch Pad: Atlantic Ocean, 65.7 N x 58.0 W. Launch Platform: AGB-5. LV Family: Deacon. Launch Vehicle: Deacon Rockoon.
  • SUI 46 Ionosphere / aeronomy mission - . Nation: USA. Agency: SUI. Apogee: 100 km (60 mi). Launched at Atlantic Ocean Launch Site 13 Launch Point 9 - - Latitude: 65.65 N - Longitude: 58.00 W..

1955 September 29 - . 19:13 GMT - . Launch Pad: Atlantic Ocean, 67.5 N x 60.3 W. Launch Platform: AGB-5. LV Family: Deacon. Launch Vehicle: Deacon Rockoon.
  • SUI 47 Ionosphere / aeronomy mission - . Nation: USA. Agency: SUI. Apogee: 100 km (60 mi). Launched at Atlantic Ocean Launch Site 13 Launch Point 10 - - Latitude: 67.52 N - Longitude: 60.25 W..

1955 September 29 - . 21:52 GMT - . Launch Pad: Atlantic Ocean, 66.8 N x 60.0 W. Launch Platform: AGB-5. LV Family: Deacon. Launch Vehicle: Deacon-Loki Rockoon. FAILURE: Failure.
  • SUI 48 test - . Nation: USA. Agency: SUI. Apogee: 100 km (60 mi). Launched at Atlantic Ocean Launch Site 13 Launch Point 11 - - Latitude: 66.85 N - Longitude: 60.00 W..

1955 September 30 - . Launch Site: White Sands. Launch Platform: B-29. LV Family: X-7. Launch Vehicle: X-7A-3.
  • Nation: USA. Agency: ARDC. Apogee: 10 km (6 mi).

1955 September 30 - . 20:10 GMT - . Launch Pad: Atlantic Ocean, 70.2 N x 62.5 W. Launch Platform: AGB-5. LV Family: Loki. Launch Vehicle: Loki Rockoon.
  • SUI 49 Ionosphere / aeronomy mission - . Nation: USA. Agency: SUI. Apogee: 100 km (60 mi). Launched at Atlantic Ocean Launch Site 13 Launch Point 12 - - Latitude: 70.20 N - Longitude: 62.45 W..

1955 October 1 - . Launch Site: Kapustin Yar. Launch Complex: Kapustin Yar V-2. LV Family: R-5. Launch Vehicle: R-5M.
1955 October 1 - . Launch Site: Kapustin Yar. Launch Complex: Kapustin Yar V-2. LV Family: R-5. Launch Vehicle: R-5M.
1955 October 2 - .
  • NAS Technical Panel for Earth Satellite Program - . Nation: USA. The National Academy of Sciences established a Technical Panel for Earth Satellite Program, with Richard E. Porter serving as chairman..

1955 - 1956 - .
  • NACA develops hypersonic test facilities. - . Nation: USA.

    The NACA Langley and Ames Aeronautical Laboratories developed high-temperature jets, wind tunnels, and other facilities for use in materials and structures research at hypersonic speeds. These facilities provided, among other things, data proving that ablation was an efficient heat-protection method for reentry vehicles.


1955 October 4 - . 21:18 GMT - . Launch Pad: Atlantic Ocean, 72.7 N x 75.4 W. Launch Platform: AGB-5. LV Family: Loki. Launch Vehicle: Loki Rockoon.
  • SUI 50 Ionosphere / aeronomy mission - . Nation: USA. Agency: SUI. Apogee: 100 km (60 mi). Launched at Atlantic Ocean Launch Site 13 Launch Point 13 - - Latitude: 72.68 N - Longitude: 75.35 W..

1955 October 5 - . Launch Site: Kapustin Yar. Launch Complex: Kapustin Yar V-2. LV Family: V-2. Launch Vehicle: R-1 8A11.
1955 October 6 - . 19:10 GMT - . Launch Pad: Atlantic Ocean, 65.1 N x 61.9 W. Launch Platform: AGB-5. LV Family: Deacon. Launch Vehicle: Deacon Rockoon.
  • SUI 51 Ionosphere / aeronomy mission - . Nation: USA. Agency: SUI. Apogee: 100 km (60 mi). Launched at Atlantic Ocean Launch Site 13 Launch Point 14 - - Latitude: 65.12 N - Longitude: 61.85 W..

1955 October 7 - . LV Family: Vanguard. Launch Vehicle: Vanguard.
  • Vanguard contract awarded. - . Nation: USA. Program: Vanguard. Class: Technology. Type: Navigation technology satellite. Spacecraft Bus: Vanguard 1. Spacecraft: Vanguard 1. Prime contract for Project Vanguard awarded the Martin Co..

1955 October 8 - . Launch Site: Kapustin Yar. Launch Complex: Kapustin Yar V-2. LV Family: V-2. Launch Vehicle: R-1 8A11.
1955 October 11 - . 14:37 GMT - . Launch Pad: Atlantic Ocean, 60.6 N x 63.5 W. Launch Platform: AGB-5. LV Family: Deacon. Launch Vehicle: Deacon Rockoon.
  • NRL Rockoon 18 Ionosphere / aeronomy mission - . Nation: USA. Agency: NRL. Apogee: 90 km (55 mi). Launched at Atlantic Ocean Launch Site 13 Launch Point 24 - - Latitude: 60.58 N - Longitude: 63.53 W..

1955 October 13 - . Launch Site: White Sands. Launch Platform: B-29. LV Family: X-7. Launch Vehicle: X-7A-3.
  • Nation: USA. Agency: ARDC. Apogee: 10 km (6 mi).

1955 October 13 - . 01:00 GMT - . Launch Site: Holloman. Launch Complex: Holloman A. LV Family: Aerobee. Launch Vehicle: Aerobee RTV-A-1a.
  • Sodium Release 2 Aeronomy mission - . Nation: USA. Agency: USAF. Apogee: 101 km (62 mi). Sodium studies research. Launched at 1800 local time. Reached 101.4 km..

1955 October 13 - . 12:44 GMT - . Launch Pad: Atlantic Ocean, 56.8 N x 58.7 W. Launch Platform: AGB-5. LV Family: Deacon. Launch Vehicle: Deacon Rockoon.
  • SUI 53 Ionosphere / aeronomy mission - . Nation: USA. Agency: SUI. Apogee: 100 km (60 mi). Launched at Atlantic Ocean Launch Site 13 Launch Point 16 - - Latitude: 56.78 N - Longitude: 58.70 W..

1955 October 13 - . 20:13 GMT - . Launch Pad: Atlantic Ocean, 55.7 N x 57.3 W. Launch Platform: AGB-5. LV Family: Deacon. Launch Vehicle: Deacon Rockoon.
  • SUI 55 Ionosphere / aeronomy mission - . Nation: USA. Agency: SUI. Apogee: 100 km (60 mi). Launched at Atlantic Ocean Launch Site 13 Launch Point 18 - - Latitude: 55.72 N - Longitude: 57.30 W..

1955 October 18 - . Launch Site: White Sands. Launch Platform: B-29. LV Family: X-7. Launch Vehicle: X-7A-3.
  • Nation: USA. Agency: ARDC. Apogee: 10 km (6 mi).

1955 October 18 - . 22:49 GMT - . Launch Site: White Sands. Launch Complex: White Sands LC35. LV Family: Aerobee. Launch Vehicle: Aerobee RTV-N-10c.
  • Solar La / airglow Solar ultraviolet and x-ray mission - . Nation: USA. Agency: NRL. Apogee: 101 km (62 mi). Solar spectrum research. Launched at 1549 local time. Reached 150 km..

1955 October 22 - . 00:20 GMT - . Launch Site: White Sands. Launch Complex: White Sands LC35. LV Family: Aerobee. Launch Vehicle: Aerobee RTV-N-10c.
  • Solar La / airglow Solar ultraviolet mission - . Nation: USA. Agency: NRL. Apogee: 185 km (114 mi). Solar spectrum research. Launched at 1720 local time. Reached 134.5 km..

1955 October 24 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral RW30/12. LV Family: Navaho. Launch Vehicle: Navaho X-10.
  • Navaho X-10 flight 17 - . Nation: USA. Agency: USAF. Program: Navaho. An engine problem resulted in a mission abort. After autolanding the nose wheel developed a shimmy, the vehicle ran off the skid strip, caught fire, and was destroyed..

1955 October 25 - .
  • X-2 Flight 4 - . Crew: Everest. Payload: X-2 # 1 flight 4. Nation: USA. Related Persons: Everest. Class: Manned. Type: Manned rocketplane. Spacecraft Bus: XS-1. Spacecraft: X-2 . Aborted powered flight attempt; became 4th glide flight..

1955 October 26 - .
  • Birth of Dr Stephen Kern Robinson - . Nation: USA. Related Persons: Robinson. American engineer mission specialist astronaut. Flew on STS-85, STS-95, STS-114, STS-130..

1955 October 26 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC1. Launch Pad: LC1/2?. LV Family: Snark. Launch Vehicle: Snark.
  • Test mission - . Nation: USA. Agency: USAF. Apogee: 10 km (6 mi).

1955 October 27 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LA. Launch Pad: LA?. LV Family: Matador. Launch Vehicle: Matador.
  • Test mission - . Nation: USA. Agency: USAF. Apogee: 12 km (7 mi).

1955 October 28 - . Launch Site: White Sands. Launch Platform: B-29. LV Family: X-7. Launch Vehicle: X-7A-3.
  • Nation: USA. Agency: ARDC. Apogee: 10 km (6 mi).

Late 1955 - . LV Family: Atlas. Launch Vehicle: Atlas A.
  • Atlas program assigned top priority in the nation - . Nation: USA. Atlas program assigned top priority in the nation (was highest priority only for AF).

1955 November 1 - . Launch Site: Kapustin Yar. Launch Complex: Kapustin Yar V-2. LV Family: R-5. Launch Vehicle: R-5M.
1955 November 1 - . Launch Site: Kapustin Yar. Launch Complex: Kapustin Yar V-2. LV Family: R-5. Launch Vehicle: R-5M.
1955 November 2 - .
  • NERVA go-ahead. - . Nation: USA. Program: NERVA.

    The Atomic Energy Commission approved, on the basis of a statement of interest by the Department of Defense, the proposed plans of the Los Alamos Scientific and the Radiation Laboratories of the University of California, for the study and development of nuclear power for rocket propulsion.


1955 November 2 - .
  • First Mach 8 rocket flight. - . Nation: USA. First air-launched, multistage, solid-rocket-propelled vehicle flown to a Mach number greater than 8 by NACA Lewis Laboratory..

1955 November 4 - . Launch Site: Kapustin Yar. Launch Complex: Kapustin Yar V-2. LV Family: V-2. Launch Vehicle: R-1E.
  • Biological mission - . Nation: Russia. Agency: Korolev Design Bureau. Apogee: 100 km (60 mi). Payload, instruments, left and right animal containers all recovered. Smoke container functioned. Carried dogs..

1955 November 4 - . 15:30 GMT - . Launch Site: White Sands. Launch Complex: White Sands LC35. LV Family: Aerobee. Launch Vehicle: Aerobee RTV-N-10c.
  • Solar La / airglow Solar ultraviolet mission - . Nation: USA. Agency: NRL. Apogee: 135 km (83 mi). Solar spectrum research. Launched at 0830 local time. Reached 158 km..

1955 November 7 - . LV Family: Navaho. Launch Vehicle: Navaho.
  • North American reorganizes - . Nation: USA. Program: Navaho.

    With the growth of its missile products beyond the Navaho program, and emerging requirements for the Navaho's navigation and rocket engine systems on ballistic missiles, North American broke up the Navaho program into two new divisions. The Missile Development Division, in Downey, would handle the Navaho missile and Hound Dog air-launched cruise missile, a derivative of the X-10 Navaho test vehicle. The Autonetics Division, would handle inertial navigation and other avionics products, and move from Downey to Anaheim. The Rocketdyne division would handle North American's increasing line of liquid rocket motors, and move to a new facility in the western San Fernando Valley in Canoga Park, close to North American's rocket test facilities in the Santa Susanna mountains.


1955 November 8 - . LV Family: Jupiter. Launch Vehicle: Jupiter IRBM.
  • Thor and Jupiter projects approved. - . Nation: USA. Secretary of Defense approved Jupiter and Thor IRBM programs, the first based on experience gained by Redstone Arsenal team from V-2 and Redstone, the latter on experience gained from Atlas program..

1955 November 9 - . Launch Site: White Sands. Launch Platform: B-29. LV Family: X-7. Launch Vehicle: X-7A-3.
  • Nation: USA. Agency: ARDC. Apogee: 10 km (6 mi).

1955 November 10 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LA. Launch Pad: LA?. LV Family: Matador. Launch Vehicle: Matador.
  • Test mission - . Nation: USA. Agency: USAF. Apogee: 12 km (7 mi).

1955 November 16 - . Launch Site: Wallops Island. LV Family: Deacon. Launch Vehicle: Double Deacon.
  • Regulus II Model test flight - . Nation: USA. Agency: NASA. Apogee: 10 km (6 mi).

1955 November 17 - . 09:15 GMT - . Launch Site: White Sands. Launch Complex: White Sands LC35. LV Family: Aerobee. Launch Vehicle: Aerobee RTV-N-10.
  • Meteorites / ultraviolet astronomy mission - . Nation: USA. Agency: NRL. Apogee: 105 km (65 mi). Night airglow, meteors research. Launched at 0200 local time. Reached 105 km..

1955 November 18 - .
  • X-2 Flight 5 - . Crew: Everest. Payload: X-2 # 1 flight 5. Nation: USA. Related Persons: Everest. Class: Manned. Type: Manned rocketplane. Spacecraft Bus: XS-1. Spacecraft: X-2 . First powered flight. Mach 0.992 at 10,675 m. Slight fire damage from engine bay fire..

1955 November 18 - . Launch Site: White Sands. Launch Platform: B-29. LV Family: X-7. Launch Vehicle: X-7A-3.
  • Nation: USA. Agency: ARDC. Apogee: 10 km (6 mi).

1955 November 19 - . Launch Site: Kapustin Yar. Launch Complex: Kapustin Yar V-2. LV Family: R-5. Launch Vehicle: R-5M.
1955 November 20 - .
  • Birth of Timothy Kristian Charles Mace - . Nation: UK. Related Persons: Mace, Timothy. British engineer cosmonaut, 1989-1998. Was married to the daughter of former Soviet Cosmonaut V Zholobov..

1955 November 26 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC1. Launch Pad: LC1/2?. LV Family: Snark. Launch Vehicle: Snark.
  • Test mission - . Nation: USA. Agency: USAF. Apogee: 10 km (6 mi).

1955 November 29 - .
  • Birth of Jess Mitchell Sponable - . Nation: Spain, USA. Related Persons: Sponable. American engineer military spaceflight engineer astronaut, 1982-1987..

1955 November 29 - . 17:16 GMT - . Launch Site: White Sands. Launch Complex: White Sands LC35. LV Family: Aerobee. Launch Vehicle: Aerobee RTV-N-10.
  • Mass spectrometers Ionosphere mission - . Nation: USA. Agency: NRL. Apogee: 132 km (82 mi). Ion composition research. Launched at 1016 local time. Reached 132 km..

1955 November 30 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC3. Launch Pad: LC3/4?. LV Family: Bomarc. Launch Vehicle: Bomarc.
  • Test mission - . Nation: USA. Agency: USAF. Apogee: 20 km (12 mi).

1955 December - .
  • Project Manhigh established. - . Nation: USA. Spacecraft Bus: Man-high. Spacecraft: Man-high.

    Project Manhigh was established in December 1955 to obtain scientific data on the behavior of a balloon in an environment above 99% of the earth's atmosphere and to investigate cosmic rays and their effects on man. Three balloon flights to the edge of space were made during the program.


1955 December 1 - . LV Family: Thor. Launch Vehicle: Thor.
  • Missile programs get highest priority. - . Nation: USA. Related Persons: Eisenhower. President Eisenhower assigned highest priority to ICBM and Thor and Jupiter IRBM programs..

1955 December 1 - . Launch Site: Point Mugu. LV Family: Asp. Launch Vehicle: Asp.
  • Test mission - . Nation: USA. Agency: USN. Apogee: 30 km (18 mi).

1955 December 1 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC3. LV Family: X-17. Launch Vehicle: X-17.
  • Test mission - . Nation: USA. Agency: USAF. Apogee: 100 km (60 mi).

1955 December 1 - . Launch Site: White Sands. Launch Platform: B-29. LV Family: X-7. Launch Vehicle: X-7A-3.
  • Nation: USA. Agency: ARDC. Apogee: 10 km (6 mi).

1955 December 3 - .
  • X-1E Flight 1 - . Payload: X-1E flight 1. Nation: USA. Class: Manned. Type: Manned rocketplane. Spacecraft Bus: XS-1. Spacecraft: X-1E. Captive flight..

1955 December 6 - . Launch Site: White Sands. Launch Platform: B-29. LV Family: X-7. Launch Vehicle: X-7A-3.
  • Nation: USA. Agency: ARDC. Apogee: 10 km (6 mi).

1955 December 6 - . 00:46 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC6. LV Family: Redstone. Launch Vehicle: Jupiter A.
  • Nation: USA. Agency: US Army. Apogee: 90 km (55 mi).

    RS-12 was launched from AMR at 1946 hours EST. The flight was successful. The actual range was 144.79 nm; .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.


1955 December 8 - . Launch Site: White Sands. Launch Platform: B-29. LV Family: X-7. Launch Vehicle: X-7A-3.
  • Nation: USA. Agency: ARDC. Apogee: 10 km (6 mi).

1955 December 9 - . 14:50 GMT - . Launch Site: White Sands. Launch Complex: White Sands LC35. LV Family: Aerobee. Launch Vehicle: Aerobee Hi. FAILURE: Failure.
  • XRV-N-13 test - . Nation: USA. Agency: NRL. Apogee: 0 km (0 mi). Rocket performance test. Launched at 0750 local time..

1955 December 12 - .
  • X-1E Flight 2 - . Crew: Walker, Joseph. Payload: X-1E flight 2. Nation: USA. Related Persons: Walker, Joseph. Class: Manned. Type: Manned rocketplane. Spacecraft Bus: XS-1. Spacecraft: X-1E. NACA flight 1. Glide flight for pilot check-out and low speed evaluation..

1955 December 13 - . Launch Site: White Sands. Launch Platform: B-29. LV Family: X-7. Launch Vehicle: X-7A-3.
  • Nation: USA. Agency: ARDC. Apogee: 10 km (6 mi).

1955 December 13 - . 05:00 GMT - . Launch Site: White Sands. Launch Complex: White Sands LC35. LV Family: Aerobee. Launch Vehicle: Aerobee RTV-N-10a.
  • Airglow / Mass spectrometer Aeronomy mission - . Nation: USA. Agency: NRL. Apogee: 142 km (88 mi). Gas composition research. Launched at 2200 local time. Reached 142 km..

1955 December 13 - . 17:58 GMT - . Launch Site: Holloman. Launch Complex: Holloman A. LV Family: Aerobee. Launch Vehicle: Aerobee AJ10-27.
  • Colorado UVS Solar ultraviolet mission - . Nation: USA. Agency: USAF. Apogee: 138 km (85 mi). Lyman alpha, solar limb darkening research. Launched at 1058 local time. Reached 138.4 km..

1955 December 14 - . Launch Site: Wallops Island. LV Family: Nike. Launch Vehicle: Nike.
  • B-58 Model test flight - . Nation: USA. Agency: NASA. Apogee: 10 km (6 mi).

1955 December 15 - .
  • X-1E Flight 3 - . Crew: Walker, Joseph. Payload: X-1E flight 3. Nation: USA. Related Persons: Walker, Joseph. Class: Manned. Type: Manned rocketplane. Spacecraft Bus: XS-1. Spacecraft: X-1E. NACA flight 2. First powered flight. Engine ran at excessive pressure, 4 overspeeds of turbopump and 2 automatic shutdowns. Power terminated by pilot..

1955 December 16 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC1. Launch Pad: LC1/2?. LV Family: Snark. Launch Vehicle: Snark.
  • Test mission - . Nation: USA. Agency: USAF. Apogee: 10 km (6 mi).

1955 December 19 - .
  • US industry to investigate the feasibility of a manned, hypersonic, rocket-powered, bombardment and reconnaissance weapon system. - . Nation: USA. Spacecraft: Bomi, Dynasoar. The Air Force requested the aviation industry to investigate the feasibility of developing a manned, hypersonic, rocket-powered, bombardment and reconnaissance weapon system..

1955 December 20 - . Launch Site: White Sands. Launch Platform: B-29. LV Family: X-7. Launch Vehicle: X-7A-3.
  • Nation: USA. Agency: ARDC. Apogee: 10 km (6 mi).

1955 December 21 - . Launch Site: Wallops Island. LV Family: Honest John. Launch Vehicle: HJ Nike. FAILURE: Failure.
  • Test launch - . Nation: USA. Agency: NASA. Apogee: 10 km (6 mi).

1955 December 22 - . Launch Site: White Sands. Launch Platform: B-29. LV Family: X-7. Launch Vehicle: X-7A-3.
  • Nation: USA. Agency: ARDC. Apogee: 10 km (6 mi).

1955 December 23 - . Launch Site: White Sands. Launch Platform: B-29. LV Family: X-7. Launch Vehicle: X-7A-3.
  • Nation: USA. Agency: ARDC. Apogee: 10 km (6 mi).

1955 December 27 - . Launch Site: Point Mugu. LV Family: Asp. Launch Vehicle: Asp.
  • Redwing prototype test - . Nation: USA. Agency: USN. Apogee: 30 km (18 mi). First prototype of Asp (atmospheric sounding projectile) sounding rocket, capable of payloads up to 80 pounds, launched successfully at NAMTC at Point Mugu, Calif..

1955 December 30 - . Launch Site: Kapustin Yar. LV Family: R-11. Launch Vehicle: R-11M.

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