Engine Model: DST-25. Designer: Isayev. Propellants: N2O4/UDMH. Thrust(vac): 25 N (5 lbf). Isp: 285 sec. Burn time: 25,000 sec. Mass Engine: 0.90 kg (1.98 lb). Chambers: 1. Chamber Pressure: 8.00 bar. Area Ratio: 45.00. Oxidizer to Fuel Ratio: 1.85. Thrust to Weight Ratio: 2.83. Country: Russia. Status: In Production. Bi-propellant hypergolic (self-igniting) engine, pressure-fed. 300,000 ignitions
Bibliography:- Haeseler, Dietrich, Visit to the museum of Chemical Machining Design Bureau, Kalinin 1998 via Dietrich Haeseler.