This page no longer updated from 31 October 2001.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

Gross Mass: 350,000 kg. Empty Mass: 52,000 kg. Thrust (vac): 1,052,154 kgf. Isp: 435 sec. Burn time: 121 sec. Propellants: Lox/LH2 Isp(sl): 330 sec. Diameter: 5.5 m. Span: 5.5 m. Length: 45.5 m. Country: USA. No Engines: 4. STME Status: Study 91. Other designations: Liquid Rocket Booster.
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Last update 12 March 2001.
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© Mark Wade, 2001 .