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astronautix.com GR-1 Stage 2


Gross Mass: 25,000 kg. Empty Mass: 2,100 kg. Thrust (vac): 45,000 kgf. Isp: 340 sec. Burn time: 170 sec. Propellants: Lox/Kerosene Isp(sl): 240 sec. Diameter: 2.7 m. Span: 2.7 m. Length: 9.2 m. Country: Russia. No Engines: 1. NK-9V Status: Development 1964. Other designations: 8K513 Blok B. Comments: Masses estimated based on total vehicle mass of 117 tonnes. Developed into Molniya/Soyuz second stage.
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Last update 12 March 2001.
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© Mark Wade, 2001 .