Soyuz 11A511-0 R-7 aft end Credit - © Mark Wade Gross Mass: 43,000 kg (94,000 lb). Empty Mass: 3,550 kg (7,820 lb). Thrust (vac): 994.300 kN (223,528 lbf). Isp: 314 sec. Burn time: 118 sec. Propellants: Lox/Kerosene. Isp(sl): 257 sec. Diameter: 2.68 m (8.79 ft). Span: 2.68 m (8.79 ft). Length: 19.60 m (64.30 ft). Country: Russia. No Engines: 1. Engine: RD-107-11D511. Status: Out of production. Cost $ : 5.000 million. First Flight: 1965. Last Flight: 1975. No Launched: 128. Other designations: 11S59 Blocks A,B,V,G. Used on Launch Vehicles: Soyuz 11A511. Vostok 11A510.                   Contact us with any corrections, additions, or comments. Conditions for use of drawings, pictures, or other materials from this site.. To contact astronauts or cosmonauts. © Mark Wade, 1997 - 2007 except where otherwise noted.

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