This page no longer updated from 31 October 2001. Latest version can be found at www.astronautix.com
Gross Mass: 815,732 kg.
Empty Mass: 44,757 kg. Thrust (vac): 730,000 kgf. Isp: 430 sec. Burn time: 350 sec. Propellants: Lox/LH2 Isp(sl): 360 sec. Diameter: 8.7 m. Span: 8.7 m. Length: 52.0 m. Country: USA. No Engines: 2. STME Status: Study 91. Other designations: National Launch System.
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Last update 12 March 2001.
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© Mark Wade, 2001 .