Melnikov N2O4/UDMH rocket engine. Part of the Yantar-2K spy satellite orbital propulsion system. In production. The orbital maneuvering system of the Yantar-2K consisted of one 11D430, four 11D431, four 11D446, and eight 11D428. Up to 150,000 ignitions.
Status: In Production. Thrust: 5.88 N (1.32 lbf). Burn time: 2,000 s.