Engine Model: RD-268. Manufacturer Name: RD-268. Designer: Glushko. Developed in: 1969-76. Application: MR-UR-100 / RS-16 (SS-17) stage 1. Propellants: N2O4/UDMH. Thrust(vac): 1,236.000 kN (277,863 lbf). Thrust(sl): 1,147.000 kN (257,855 lbf). Isp: 319 sec. Isp (sea level): 296 sec. Mass Engine: 770 kg (1,690 lb). Diameter: 1.08 m (3.55 ft). Length: 2.15 m (7.05 ft). Chambers: 1. Chamber Pressure: 226.00 bar. Oxidizer to Fuel Ratio: 2.67. Thrust to Weight Ratio: 163.63. Country: Russia. Status: Out of Production. First Flight: 1990. First flight 1976. Modification of RD-263 engine.
RD-268 used on Rocket Stages
Bibliography:- Russian Arms Catalogue, Vol 5 and 6, Military Parade, Moscow via Dietrich Haeseler.