Manufacturer Name: RD-108. Government Designation: 8D75PS. Designer: Glushko. Application: Sputnik 8K71PS-1. Used on stages: Sputnik 8K71PS-1. Used on launch vehicles: Sputnik 8K71PS. Propellants: Lox/KeroseneThrust(vac): 93,000 kgf. Thrust(vac): 912.00 kN. Isp: 308 sec. Isp (sea level): 241 sec. Burn time: 340 sec. Mass Engine: 1,250 kg. Diameter: 0.7 m. Length: 2.9 m. Chambers: 4. Chamber Pressure: 53.00 bar. Area Ratio: 18.90. Country: Russia. Status: Out of Production. First Flight: 1957. Last Flight: 1958. Flown: 32. References: 173 . Comments: Diameter is per chamber.