Engine Model: RD-502. Manufacturer Name: RD-502. Designer: Glushko. Developed in: 1960-66. Application: Experimental upper stage engine. Propellants: H2O2/Pentaborane. Thrust(vac): 98.100 kN (22,054 lbf). Isp: 380 sec. Mass Engine: 132 kg (291 lb). Diameter: 1.18 m (3.87 ft). Length: 2.51 m (8.23 ft). Chambers: 1. Chamber Pressure: 147.00 bar. Thrust to Weight Ratio: 75.75. Country: Russia. Status: Developed 1960-66. First Flight: 1966. Developed 1960-1966. Experimental upper stage engine. Program stopped due to toxicity of propellants. Proposed by Glushko for N-1 around Sept. 1960. Intended later for upper stages, e.g. Proton.
Bibliography:- Haeseler, Dietrich, Information from NPO Energomash museum exhibit, Nov. 1992 via Dietrich Haeseler.
