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astronautix.com 17D12


Government Designation: 17D12. Designer: Korolev. Developed in: 1976-88. Application: Buran OMS. Used on spacecraft: Buran. Propellants: Lox/Kerosene Thrust(vac): 8,800 kgf. Thrust(vac): 86.30 kN. Isp: 362 sec. Burn time: 680 sec. Mass Engine: 230 kg. Diameter: 1.2 m. Length: 2.3 m. Chambers: 1. Chamber Pressure: 79.40 bar. Area Ratio: 189.00. Oxidizer to Fuel Ratio: 2.42. Country: Russia. Status: Out of Production. References: 95 , 315 . Comments: Version of RD-58 for Buran orbital propulsion system 17D11. Uses synthetic kerosene ('Sintin') for higher specific impulse. Some data differ for 17D12 in Energia 92 compared to RD-58S (Energia 92): Area Ratio 192, Ivac 362 s, pc 78.5 bar. 15 ignitions.
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Last update 12 March 2001.
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