This page no longer updated from 31 October 2001.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

Gross Mass: 780,000 kg. Empty Mass: 60,000 kg. Thrust (vac): 1,578,231 kgf. Isp: 435 sec. Burn time: 195 sec. Propellants: Lox/LH2 Isp(sl): 330 sec. Diameter: 8.7 m. Span: 8.7 m. Length: 60.0 m. Country: USA. No Engines: 6. STME Status: Study 91. Other designations: Advanced Launch System Core.
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Last update 12 March 2001.
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© Mark Wade, 2001 .