Encyclopedia Astronautica

N2O4/UDMH propellant rocket stage. Loaded mass 20,000 kg. Thrust 682.00 kN.

Status: Out of production.
Gross mass: 20,000 kg (44,000 lb).
Height: 7.70 m (25.20 ft).
Diameter: 1.90 m (6.20 ft).
Thrust: 682.00 kN (153,319 lbf).
Burn time: 74 s.

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Associated Countries
Associated Engines
Associated Launch Vehicles
  • Volna SLV Russian launch vehicle based on surplus R-29RL submarine launched ballistic missiles. Suborbital and orbital versions. Payload volume 1.3 cu. M. Payload 115 kg to 3000 km or 1250 kg to 200 km altitude suborbital trajectories, or 120 (260 lb) kg to a 200 km orbit. Liftoff mass 34 tonnes. More...

Associated Manufacturers and Agencies
  • Makeyev Russian manufacturer of rockets, spacecraft, and rocket engines. Makeyev Design Bureau, Kolomna, Russia. 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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