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17D61

Engine · Russia

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

Melnikov N2O4/UDMH rocket engine. Ikar stage 4 for Soyuz-Ikar. Design 1999. Derived from propulsion module of Yantar spy satellite, with over 30 flights to 1998. Increased versatility compared to Block L due to capability for 50 restarts.

Engine thrusts: 1 x 2943 N + 4 x 110 N + 4 x 52 N + 8 x 5.88 N.

Chambers: 1 + 4 + 4 + 8. Engine: 820 kg (1,800 lb). Chamber Pressure: 9.00 bar. Thrust to Weight Ratio: .36. Restarts: 50.

People
Melnikov
Country
Russia
Launch Vehicles
Soyuz 11A511U / Ikar
Propellants
N2O4/UDMH
Bibliography
345, 346, 69