This page no longer updated from 31 October 2001.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

Gross Mass: 905,000 kg. Empty Mass: 85,000 kg. Thrust (vac): 800,286 kgf. Isp: 453 sec. Burn time: 480 sec. Propellants: Lox/LH2 Isp(sl): 354 sec. Diameter: 7.8 m. Span: 7.8 m. Length: 58.8 m. Country: Russia. No Engines: 4. RD-0120 Status: Hardware.
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Last update 12 March 2001.
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© Mark Wade, 2001 .