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Gross Mass: 325,000 kg.
Empty Mass: 35,000 kg. Thrust (vac): 240,000 kgf. Isp: 440 sec. Burn time: 510 sec. Propellants: Lox/LH2 Diameter: 8.0 m. Span: 8.0 m. Length: 27.0 m. Country: Russia. No Engines: 6. RD-57 Status: Design 1965. Comments: N1 improvement study, 1965. Lox/LH2 replacement for Block V third stage. Pursued into 1966 and later, but later efforts concentrated on Block S, R, and SR cryogenic stages.
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Last update 12 March 2001.
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© Mark Wade, 2001 .