RD-108-8D75K

R-7 aft end
Credit - © Mark Wade

Manufacturer Name: RD-108. Government Designation: 8D75K. Designer: Glushko. Application: Molniya 8K78-1, R-7A 8K74-1, Voskhod 11A57-1, Vostok 8A92-1, Vostok 8A92M-1. Propellants: Lox/Kerosene. Thrust(vac): 941.000 kN (211,545 lbf). Thrust(sl): 740.400 kN (166,449 lbf). Isp: 315 sec. Isp (sea level): 248 sec. Burn time: 340 sec. Mass Engine: 1,252 kg (2,760 lb). Diameter: 0.67 m (2.19 ft). Length: 2.86 m (9.38 ft). Chambers: 4. Chamber Pressure: 51.00 bar. Area Ratio: 18.90. Thrust to Weight Ratio: 76.59. Country: Russia. First Flight: 1959. Last Flight: 1991. Flown: 488.

Diameter is per chamber.

RD-108-8D75K used on Rocket Stages

Used on stage: Molniya 8K78-1. on launch vehicle: Molniya 8K78.

Used on stage: R-7A 8K74-1. on launch vehicle: R-7A.

Used on stage: Voskhod 11A57-1. on launch vehicle: Polyot 11A59.

Used on stage: Voskhod 11A57-1. on launch vehicle: Voskhod 11A57.

Used on stage: Vostok 8A92-1. on launch vehicle: Vostok 8A92.

Used on stage: Vostok 8A92M-1. on launch vehicle: Vostok 8A92M.

Bibliography and Further Reading

Varfolomyev, Timothy, Spaceflight, "Soviet Rocketry that Conquered Space - Part 1", 1995, Volume 37, page 260. 1: Sp 95/37-260; Sp 96/38-31 (8K71 launches); 2: Sp 96/38-48; 3: Sp 96/38-206; Sp 96/38-317 (designatons); 4: Sp 98/40-28; 5:Sp 98/40-85

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© Mark Wade, 1997 - 2007 except where otherwise noted.

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