Encyclopedia Astronautica
Thor DSV-2G


American orbital launch vehicle. Two stage vehicle consisting of 1 x Thor DM-18A + 1 x AJ10-118

Failures: 1. First Fail Date: 1964-03-24. Last Fail Date: 1964-03-24.

Status: Retired 1965.
Gross mass: 55,000 kg (121,000 lb).
Height: 26.90 m (88.20 ft).
Diameter: 2.44 m (8.00 ft).
Thrust: 668.00 kN (150,172 lbf).
Apogee: 75 km (46 mi).
First Launch: 1964.03.24.
Last Launch: 1965.02.23.
Number: 3 .

More... - Chronology...


Associated Countries
Associated Spacecraft
  • Asset American manned spaceplane. 6 launches, 1963.09.18 (ASSET 1) to 1965.02.23 (ASSET 6). One part of the Dynasoar manned spaceplane project was ASSET ( 'Aerothermodynamic Elastic Structural Systems Environmental Tests') . More...

See also
  • Delta The Delta launch vehicle was America's longest-lived, most reliable, and lowest-cost space launch vehicle. Development began in 1955 and it continued in service in the 21st Century despite numerous candidate replacements. More...

Associated Manufacturers and Agencies
  • Douglas American manufacturer of rockets, spacecraft, and rocket engines. Boeing Huntington Beach, Huntington Beach, CA, USA. More...

Associated Launch Sites
  • Cape Canaveral America's largest launch center, used for all manned launches. Today only six of the 40 launch complexes built here remain in use. Located at or near Cape Canaveral are the Kennedy Space Center on Merritt Island, used by NASA for Saturn V and Space Shuttle launches; Patrick AFB on Cape Canaveral itself, operated the US Department of Defense and handling most other launches; the commercial Spaceport Florida; the air-launched launch vehicle and missile Drop Zone off Mayport, Florida, located at 29.00 N 79.00 W, and an offshore submarine-launched ballistic missile launch area. All of these take advantage of the extensive down-range tracking facilities that once extended from the Cape, through the Caribbean, South Atlantic, and to South Africa and the Indian Ocean. More...
  • Cape Canaveral LC17B Delta launch complex. Part of a dual launch pad complex built for the Thor ballistic missile program in 1956. Upgraded over the decades for use with Thor, Delta, Delta II, and Delta III launch vehicles, it remained in use for over half a century. More...

Associated Stages
  • Delta A Nitric acid/UDMH propellant rocket stage. Loaded/empty mass 2,164/694 kg. Thrust 33.80 kN. Vacuum specific impulse 271 seconds. Able was only the first of many engine and application programs that flowed from the Vanguard experience base. These included Able, Ablestar, Delta, Fat Delta, the Japanese N II, and applications or offshoots such as Hydra, Saint (Satellite Intercept), and other classified programs. More...
  • Thor DM-19 Lox/Kerosene propellant rocket stage. Loaded/empty mass 49,340/3,125 kg. Thrust 758.71 kN. Vacuum specific impulse 282 seconds. More...

Thor DSV-2G Chronology


1964 March 24 - . 12:15 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC17B. LV Family: Delta. Launch Vehicle: Thor DSV-2G. LV Configuration: Thor DSV-2G 240. FAILURE: Second stage fired, then shut down, repeating the sequence several times.. Failed Stage: 2.
  • ASSET 2 re-entry vehicle test flight - . Nation: USA. Agency: USAF. Apogee: 55 km (34 mi). Suborbital test of small scale spaceplane model to test materials for the X-20 Dynasoar. Aero-thermodynamic structural test vehicle (ASV) for heat shield tests. Good first stage burn, but the second stage fired, then shut down, repeating the sequence several times. The spacecraft separated, and began to maneuver in a 60 degree bank to recover course, when the self-destruct package blew it apart. The debris impacted the Atlantic 800 km downrange near San Salvador Island.

1964 July 22 - . 15:39 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC17B. LV Family: Delta. Launch Vehicle: Thor DSV-2G. LV Configuration: Thor DSV-2G 250.
  • ASSET 3 re-entry vehicle test flight - . Nation: USA. Agency: USAF. Apogee: 71 km (44 mi). Suborbital test of small scale spaceplane model to test materials for the X-20 Dynasoar. Aero-thermodynamic structural test vehicle (ASV) for heat shield tests. Launched after four hours of holds. Tested Dynasoar hardware - tungsten nose cap, molbdenum panels with vapor-deposited disilicide, and liquid-cooled double-walled cockpit bathtub panel. Reached 5,500 m/s and recovered near Ascension Island 12 hours after launch.

1965 February 23 - . 14:36 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC17B. LV Family: Delta. Launch Vehicle: Thor DSV-2G. LV Configuration: Thor DSV-2G 248.
  • ASSET 6 re-entry vehicle test flight - . Nation: USA. Agency: USAF. Apogee: 70 km (43 mi). Suborbital test of small scale spaceplane model to test materials for the X-20 Dynasoar. Reached 6,000 m/s and 4,350 km range. Tested twelve different kinds of refractory metals and covered with 2000 dots of heat-sensitive paint to characterize thermal profile on reentry. Telemetry indicated that the spacecraft survived reentry, but it evidently sank upon impacting the ocean and could not be recovered as planned.

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