Encyclopedia Astronautica

Yuzhnoye N2O4/UDMH rocket engine. 285 kN. R-36 stage 1 attitude control engine. Out of Production. 4 nozzles, maximum 42 degree gimbal angle.

Application: R-36 stage 1 attitude control engine.

Chambers: 4. Engine: 326 kg (718 lb).

AKA: D-68M; RD-68M.
Status: Out of Production.
Unfuelled mass: 326 kg (718 lb).
Height: 0.98 m (3.21 ft).
Diameter: 3.45 m (11.31 ft).
Thrust: 285.00 kN (64,070 lbf).
Burn time: 125 s.
First Launch: 1962-1966.

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Associated Countries
See also
Associated Launch Vehicles
Associated Manufacturers and Agencies
  • Yuzhnoye Ukrainian manufacturer of rockets, spacecraft, and rocket engines. Yangel Design Bureau, Dnepropetrovsk, Ukraine. More...

Associated Propellants
  • N2O4/UDMH Nitrogen tetroxide became the storable liquid propellant of choice from the late 1950's. Unsymmetrical Dimethylhydrazine ((CH3)2NNH2) became the storable liquid fuel of choice by the mid-1950's. Development of UDMH in the Soviet Union began in 1949. It is used in virtually all storable liquid rocket engines except for some orbital manoeuvring engines in the United States, where MMH has been preferred due to a slightly higher density and performance. More...

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