This page no longer updated from 31 October 2001. Latest version can be found at Shuttle FR-3-2

Gross Mass: 388,189 kg. Empty Mass: 130,159 kg. Thrust (vac): 463,874 kgf. Isp: 459 sec. Burn time: 251 sec. Propellants: Lox/LH2 Isp(sl): 359 sec. Diameter: 7.5 m. Span: 21.8 m. Length: 54.6 m. Country: USA. No Engines: 2. SSME Study Status: Study. Comments: Trapezoidal lifting body configuration. Cross range 2419 km.
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Last update 12 March 2001.
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© Mark Wade, 2001 .