Encyclopedia Astronautica

N2O4/UDMH propellant rocket stage. Loaded mass 2,000 kg.

Status: Retired 1961.
Gross mass: 2,000 kg (4,400 lb).
Height: 4.50 m (14.70 ft).
Diameter: 0.80 m (2.62 ft).

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Associated Countries
Associated Engines
Associated Launch Vehicles
  • Daniel French test vehicle. Three stage test vehicle for Israel's Jericho consisting of 1 x SPRAN-50 + 1 x MD-620 + 1 x Melanie More...
  • Jericho First Israeli ballistic missile. Developed by Dassualt in France as the MD-620. Test series included both one and two stage prototypes. Follow-on versions were said to have differed. More...

Associated Manufacturers and Agencies
  • Dassault French manufacturer of rockets, spacecraft, and rocket engines. Dassault Aircraft, France. 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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