Engine Model: RD-3. Manufacturer Name: RD-3. Designer: Glushko. Application: experimental. Propellants: Nitric acid/Kerosene. Thrust(vac): 9.000 kN (2,023 lbf). Throttled thrust(vac): 1.000 kN (225 lbf). Isp: 190 sec. Mass Engine: 190 kg (410 lb). Chambers: 3. Chamber Pressure: 22.00 bar. Thrust to Weight Ratio: 4.83. Country: Russia. Status: Developed 1950's. The RD-3 was a cluster of three RD-1 engines with a new common turbopump. Ignition was by an ethane-air mixture.
Bibliography:- Russian Arms Catalogue, Vol 5 and 6, Military Parade, Moscow via Dietrich Haeseler.