Engine Model: RD-869. Manufacturer Name: RD-869. Designer: Yuzhnoye. Developed in: 1983-85. Application: R-36M2 / RS-20V (SS-18 Mod 4) vehicle bus. Propellants: N2O4/UDMH. Thrust(vac): 8.580 kN (1,929 lbf). Throttled thrust(vac): 2.470 kN (555 lbf). Isp: 313 sec. Burn time: 700 sec. Mass Engine: 196 kg (432 lb). Diameter: 3.00 m (9.80 ft). Length: 1.42 m (4.65 ft). Chambers: 1. Chamber Pressure: 41.00 bar. Oxidizer to Fuel Ratio: 1.80. Thrust to Weight Ratio: 4.46. Country: Ukraine. First Flight: 1986. Last Flight: 2006. Flown: 42. 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.
RD-869 used on Rocket Stages
Bibliography:- Shnyakin, V N, Shidkostnye Raketye Dvigateli - Opisanie i Osnovnye Tekhnicheskie Dannye, GKB Yuzhnoe "Yangel", Dnepropetrovsk 1996 via Dietrich Haeseler.