Encyclopedia Astronautica
Martin Project 7969



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Proj 7969 Martin
Credit: NASA
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Project 7969 Designs
Project 7969 designs. From left, top row: North American X-15B; Bell Dynasoar; Northrop Dynasoar; Republic Demi body; Avco manoeuvrable drag cone. Second row: Lockheed; Martin; Aeronutronics; Goodyear; McDonnell; Convair
Credit: © Mark Wade
American manned spacecraft. Study 1958. Martin's proposal for the Air Force manned space project was a zero-lift vehicle launched by a Titan I with controlled flight in orbit. The spacecraft would be boosted into a 240 km orbit for a 24 hour mission.

Tracking would use the Minitrack System and deorbit would be accomplished by a retrorocket producing a 150 m/sec delta-v. Spacecraft attitude control was by rocket thrusters. The spacecraft was fully automatic and the pilot was only a passenger. Maximum G-forces during re-entry were 8-15 g's and an ablative heat shield was proposed. In case of booster failure during ascent to orbit the capsule would be ejected. The spacecraft had a ballistic coefficient (m/CdA) of 500 kg per square meter. Landing precision was within a 160 x 160 km footprint. It was expected that a first manned orbital flight could be achieved 30 months after a go-ahead.

Gross mass: 1,600 kg (3,500 lb).
Height: 4.26 m (13.97 ft).

More... - Chronology...


Associated Countries
See also
  • Man-In-Space-Soonest The beginning of the Air Force's Man-In-Space-Soonest program has been traced back to a staff meeting of General Thomas S Power, Commander of the Air Research and Development Command (ARDC) in Baltimore on 15 February 1956. Power wanted studies to begin on manned space vehicles that would follow the X-15 rocketplane. These were to include winged and ballistic approaches - the ballistic rocket was seen as being a militarily useful intercontinental troop and cargo vehicle. More...

Associated Launch Vehicles
  • Titan American orbital launch vehicle. The Titan launch vehicle family was developed by the United States Air Force to meet its medium lift requirements in the 1960's. The designs finally put into production were derived from the Titan II ICBM. Titan outlived the competing NASA Saturn I launch vehicle and the Space Shuttle for military launches. It was finally replaced by the USAF's EELV boosters, the Atlas V and Delta IV. Although conceived as a low-cost, quick-reaction system, Titan was not successful as a commercial launch vehicle. Air Force requirements growth over the years drove its costs up - the Ariane using similar technology provided lower-cost access to space. More...
  • Titan 1 American intercontinental ballistic missile. ICBM, built as back-up to Atlas, using two stages instead of one and a half, and conventional tank construction in lieu of balloon tanks. It was also to have been used for suborbital tests of the X-20A Dynasoar manned space plane. For unknown reasons never refurbished for use as space launcher and scrapped after being replaced by the Titan II in the missile role in mid-1960's. More...

Associated Manufacturers and Agencies
  • USAF American agency overseeing development of rockets and spacecraft. United States Air Force, USA. More...
  • Martin American manufacturer of rockets, spacecraft, and rocket engines. Martin Marietta Astronautics Group (1956), Denver, CO, USA. More...

Bibliography
  • Baker, David, The History of Manned Spaceflight, Crown, New York, 1981.
  • Swenson, Grimwood, Alexander, Charles C, This New Ocean, Government Printing Office, 1966. Web Address when accessed: here.
  • Grimwood, James M., Project Mercury: A Chronology, NASA Special Publication-4001.

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