This page no longer updated from 31 October 2001. Latest version can be found at Nova MM 24G-2

Gross Mass: 1,043,000 kg. Empty Mass: 136,000 kg. Thrust (vac): 1,043,000 kgf. Isp: 451 sec. Burn time: 386 sec. Propellants: Lox/LH2 Isp(sl): 379 sec. Diameter: 18.3 m. Span: 18.3 m. Length: 28.8 m. Country: USA. No Engines: 2. HP-1 Status: Study 1963. Comments: Operational date would have been December 1974. .
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Last update 12 March 2001.
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© Mark Wade, 2001 .