Gross Mass: 10,470,000 kg.
Empty Mass: 816,000 kg. Thrust (vac): 16,384,000 kgf. Isp: 454 sec. Burn time: 263 sec. Propellants: Lox/LH2Isp(sl): 377 sec. Diameter: 24.4 m. Span: 32.2 m. Length: 69.5 m. Country: USA. No Engines: 24. CD ModuleStatus: Study 1963. Comments: Operational date would have been June 1978. SSTO; recoverable. .