This page no longer updated from 31 October 2001. Latest version can be found at Hyperion SSTO

Gross Mass: 450,000 kg. Empty Mass: 44,000 kg. Thrust (vac): 800,000 kgf. Isp: 459 sec. Burn time: 300 sec. Propellants: Lox/LH2 Isp(sl): 359 sec. Diameter: 10.0 m. Span: 16.0 m. Length: 18.0 m. Country: USA. No Engines: 1. Status: Study. Comments: All values estimated based on drawing, statement that 5 x mass of SASSTO, payload performance, and 300 m/s sled velocity augmentation.
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Last update 12 March 2001.
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© Mark Wade, 2001 .