Encyclopedia Astronautica
Astro IV

American orbital launch vehicle. A two-stage all-Lox/LH2 vehicle proposed for the USAF SLV-4 requirement. Ruled out because it did not use the large segmented solids then favored by the USAF and its think tanks.

The design apparently used five J-2 engines in the first stage, and a single J-2 in the second stage.

LEO Payload: 7,300 kg (16,000 lb) to a 480 km orbit at 28.00 degrees.

Status: Study 1961.
Gross mass: 278,290 kg (613,520 lb).
Payload: 7,300 kg (16,000 lb).
Height: 47.00 m (154.00 ft).
Diameter: 5.08 m (16.66 ft).
Span: 13.50 m (44.20 ft).
Apogee: 480 km (290 mi).

More... - Chronology...

Associated Countries
Associated Spacecraft
  • Dynasoar American manned spaceplane. Cancelled 1963. The X-20A Dyna-Soar (Dynamic Soarer) was a single-pilot manned reusable spaceplane, really the earliest American manned space project to result in development contracts. More...

See also
Associated Manufacturers and Agencies
  • Convair American manufacturer of rockets, spacecraft, and rocket engines. Convair, USA. More...

  • Godwin, Robert, editor, Dyna-Soar: Hypersonic Strategic Weapons System, Collector's Guide Publishing, Ontario, Canada, 2003..

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