Encyclopedia Astronautica
Astris


N2O4/Aerozine-50 propellant rocket stage. Loaded/empty mass 3,370/610 kg. Thrust 23.33 kN. Vacuum specific impulse 310 seconds.

Cost $ : 3.500 million.

Status: Retired 1971.
Gross mass: 3,370 kg (7,420 lb).
Unfuelled mass: 610 kg (1,340 lb).
Height: 3.36 m (11.02 ft).
Diameter: 2.00 m (6.50 ft).
Span: 2.00 m (6.50 ft).
Thrust: 23.33 kN (5,245 lbf).
Specific impulse: 310 s.
Specific impulse sea level: 260 s.
Burn time: 330 s.
Number: 6 .

More... - Chronology...


Associated Countries
Associated Engines
  • Astris German N2O4/Aerozine-50 rocket engine. 23.3 kN. Isp=310s. Used on Europa launch vehicle. First flight 1964. More...

Associated Launch Vehicles
  • ELDO A European orbital launch vehicle. Three stage version of the Europa vehicle. More...
  • Europa European orbital launch vehicle. Europe's first space launcher. The first stage was a British Blue Streak IRBM, the second stage the French Coralie, and the third stage the German Astris. All orbital launch attempts failed due to unreliability of the third stage. The project was cancelled after withdrawal of British support and replaced by the Ariane. More...
  • Cora European orbital launch vehicle. Cora was an experimental rocket to test the second and third stages of the Europa launch vehicle. More...
  • Europa II European orbital launch vehicle. Four stage version of the Europa vehicle, adding a P068 fourth stage. More...

Associated Propellants
  • N2O4/Aerozine-50 Nitrogen tetroxide became the storable liquid propellant of choice from the late 1950's. Aerozine was a 50-50 mixture of hydrazine and UDMH developed for use in the Titan 2 missile. Copied in one Russian missile but otherwise straight UDMH used more commonly. Higher boiling point than UDMH. More...

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