Engine Model: 11D431. Government Designation: 11D431. Designer: Melnikov. Application: Yantar-2K orbital propulsion. Propellants: N2O4/UDMH. Thrust(vac): 5.88 N (1.32 lbf). Burn time: 2,000 sec. Chambers: 1. Country: Russia. Status: In Production. Orbital propulsion system of the Yantar-2K military satellite, including one 11D430, four 11D431, four 11D446, and eight 11D428. Up to 150,000 ignitions.
Bibliography:- Sorokin, Vladislav, Novosti Kosmonavtiki, "'Yantarnaya istoriya'", 1997, Issue 17, page 57.