Skip to content
79,433 pages · 13,741 images · since 1994 Browse A–Z Today in space history
Encyclopedia Astronautica The full story of spaceflight
Encyclopedia entry

KDU-426

Engine · Russia

Original archive entry. The text, images and links below are kept as they were written.

Isayev N2O4/UDMH rocket engine. Soyuz-T orbital correction engine. In Production. Pressure-fed engine. Used as long duration engine for correction orbits of satellites.

Engine: 270 kg (590 lb). Chamber Pressure: 8.80 bar. Thrust to Weight Ratio: 1.16. Oxidizer to Fuel Ratio: 1.85.

Subtopics

  • KRD-79 Isayev N2O4/UDMH rocket engine. Salyut 6, 7and Mir orbital propulsion maneuvering engine. In Production. Probably derived from engine of propulsion system KDU-426. Pressure fed engine.
Country
Russia
Spacecraft
Soyuz T
Propellants
N2O4/UDMH
Bibliography
314, 329, 344