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Ariane 1-2

Encyclopedia Astronautica
Ariane 1-2

N2O4/UDMH propellant rocket stage. Loaded/empty mass 37,130/3,625 kg. Thrust 720.97 kN. Vacuum specific impulse 296 seconds.

Cost $ : 5.800 million.

AKA: L-33.
Status: Out of production.
Gross mass: 37,130 kg (81,850 lb).
Unfuelled mass: 3,625 kg (7,991 lb).
Height: 11.50 m (37.70 ft).
Diameter: 2.60 m (8.50 ft).
Span: 2.60 m (8.50 ft).
Thrust: 720.97 kN (162,079 lbf).
Specific impulse: 296 s.
Specific impulse sea level: 200 s.
Burn time: 132 s.
Number: 218 .
More... - Chronology...

Associated Countries

Associated Engines

  • Viking 4 SEP N2O4/UDMH rocket engine. 721 kN. Isp=296s. Used on Ariane 1, GSLV, PSLV. First flight 1979. More...

Associated Launch Vehicles

  • Ariane 1 French orbital launch vehicle. First version of the Ariane launch vehicle. More...
  • Ariane 2 French orbital launch vehicle. Basic three stage vehicle without solid rocket motor strap-ons. Payload to geosynchronous transfer orbit was 2,175 kg. More...
  • Ariane 44LP French orbital launch vehicle. Ariane 4 with 2 liquid rocket + 2 solid rocket strap-ons. More...
  • Ariane 44L French orbital launch vehicle. Ariane 4 with 4 liquid rocket strap-ons. More...
  • Ariane 40 French orbital launch vehicle. 3 stage core vehicle with original Ariane H10 upper stage. A fully fueled Ariane core cannot lift off the ground without strap-on liquid or solid motors. When Ariane 4 is launched in this configuration, the propellant tanks of the first and second stages are not completely filled. More...
  • Ariane 42P French orbital launch vehicle. Ariane 4 with 2 solid rocket strap-ons. More...
  • Ariane 44P French orbital launch vehicle. Ariane 4 with 4 solid rocket strap-ons. More...
  • Ariane 40-3 French orbital launch vehicle. 3 stage core vehicle with Ariane Ariane H10-3 upper stage. More...
  • Ariane 42L French orbital launch vehicle. Ariane 4 with 2 liquid rocket strap-ons. More...
  • Ariane 44LP-3 French orbital launch vehicle. As Ariane 44LP but with Ariane H10-3 upper stage. More...
  • Ariane 44L-3 French orbital launch vehicle. As Ariane 44L but with Ariane H10-3 upper stage. 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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