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RD-869
Part of RD-860
Yuzhnoye N2O4/UDMH rocket engine. R-36M2 vehicle bus. 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. First flight 1986.

Date: 1983-85. Number: 42 . Thrust: 8.58 kN (1,929 lbf). Unfuelled mass: 196 kg (432 lb). Specific impulse: 313 s. Burn time: 700 s. Height: 1.42 m (4.65 ft). Diameter: 3.00 m (9.80 ft).

Throttled thrust(vac): 2.470 kN (555 lbf). Engine: 196 kg (432 lb). Chamber Pressure: 41.00 bar. Thrust to Weight Ratio: 4.46. Oxidizer to Fuel Ratio: 1.8.

Family: Storable liquid. Country: Ukraine. Launch Vehicles: Dnepr. Propellants: N2O4/UDMH. Stages: R-36M2-3. Agency: Yuzhnoye. Bibliography: 348.
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