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Manufacturer Name: KDU-426. Government Designation: 11D426. Designer: Isayev. Developed in: 1968-74. Application: Soyuz-T orbital correction engine. Used on spacecraft: Soyuz T. Propellants: N2O4/UDMH Thrust(vac): 315 kgf. Thrust(vac): 3.09 kN. Isp: 292 sec. Burn time: 570 sec. Mass Engine: 270 kg. Diameter: 2.1 m. Length: 1.2 m. Chambers: 1. Chamber Pressure: 8.80 bar. Oxidizer to Fuel Ratio: 1.85. Country: Russia. Status: In Production. References: 314 , 329 , 344 . Comments: Pressure-fed engine. Used as long duration engine for correction orbits of satellites.
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Last update 12 March 2001.
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