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astronautix.com RD-869


Manufacturer Name: RD-869. Designer: Yangel. Developed in: 1983-85. Application: R-36M2 / RS-20V (SS-18 Mod 4) vehicle bus. Used on stages: R-36M2-3. Used on launch vehicles: Dnepr. Propellants: N2O4/UDMH Thrust(vac): 875 kgf. Thrust(vac): 8.58 kN. Isp: 313 sec. Burn time: 700 sec. Mass Engine: 196 kg. Diameter: 3.0 m. Length: 1.4 m. Chambers: 1. Chamber Pressure: 41.00 bar. Oxidizer to Fuel Ratio: 1.80. Country: Ukraine. Status: Out of Production. References: 348 . Comments: Based on RD-864. Two thrust levels. The four thrusters swing out of the stage housing before use. Chamber pressure 41 / 17 bar. Diameter 3,0 / 4,02 m.
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Last update 12 March 2001.
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