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astronautix.com RD-108-8D75
R-7 aft end
R-7 aft end -

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Manufacturer Name: RD-108. Government Designation: 8D75. Designer: Glushko. Application: R-7 8K71-1, Vostok 8K72-1, Vostok 8K72K-1. Used on stages: R-7 8K71-1, Vostok 8K72-1. Used on launch vehicles: R-7 8K71, Vostok 8K72. Propellants: Lox/Kerosene Thrust(vac): 93,000 kgf. Thrust(vac): 912.00 kN. Isp: 308 sec. Isp (sea level): 241 sec. Burn time: 340 sec. Mass Engine: 1,278 kg. Diameter: 0.7 m. Length: 2.9 m. Chambers: 4. Chamber Pressure: 51.00 bar. Area Ratio: 18.90. Oxidizer to Fuel Ratio: 2.39. Country: Russia. Status: Out of Production. First Flight: 1957. Last Flight: 1961. Flown: 30. References: 173 . Comments: OKB Glushko. Used on 8K71 R-7 Stage 1. Developed in 1954-1955. Propellants kerosene (RG-1) / Lox. Diameter is per chamber.
RD-107RD-107

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