Encyclopedia Astronautica
Topaze VE111-1


N2O4/UDMH propellant rocket stage. Loaded mass 1,500 kg. Thrust 120.00 kN.

Status: Retired 1964.
Gross mass: 1,500 kg (3,300 lb).
Height: 4.50 m (14.70 ft).
Diameter: 0.80 m (2.62 ft).
Thrust: 120.00 kN (26,970 lbf).
Number: 10 .

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Associated Countries
Associated Engines
Associated Launch Vehicles
  • Topaze VE111 Topaze was the first guided rocket in the French 'precious stones' series. As such it was the first launched from a pad rather than a ramp. The initial model was the VE111C (short) with the NA802 motor. More...

Associated Manufacturers and Agencies
  • SEREB French manufacturer of rocket engines and rockets. SEREB, 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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