Encyclopedia Astronautica

N2O4/UDMH rocket stage. Mass 15,000 kg (33,069 lb).

Status: Retired 1999.
Gross mass: 15,000 kg (33,000 lb).
Unfuelled mass: 1,000 kg (2,200 lb).
Height: 8.00 m (26.20 ft).
Diameter: 2.57 m (8.43 ft).
Burn time: 5.00 s.
Number: 7 .

More... - Chronology...

Associated Countries
Associated Engines
Associated Launch Vehicles
  • A-350R Russian anti-ballistic missile. Radiation-hardened version of the A-350. More...

Associated Manufacturers and Agencies
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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