Encyclopedia Astronautica
Orion 50S


Solid propellant rocket stage. Loaded/empty mass 14,020/1,868 kg. Thrust 484.91 kN. Vacuum specific impulse 294 seconds.

Cost $ : 6.000 million.

Status: Active.
Gross mass: 14,020 kg (30,900 lb).
Unfuelled mass: 1,868 kg (4,118 lb).
Height: 8.88 m (29.13 ft).
Diameter: 1.27 m (4.16 ft).
Span: 6.71 m (22.01 ft).
Thrust: 484.91 kN (109,012 lbf).
Specific impulse: 294 s.
Specific impulse sea level: 180 s.
Burn time: 72 s.
Number: 24 .

More... - Chronology...


Associated Countries
Associated Engines
  • Pegasus-1 Hercules solid rocket engine. 484.9 kN. Isp=285s. Used on Pegasus, Taurus. First flight 1989. More...

Associated Launch Vehicles
  • Pegasus American air-launched orbital launch vehicle. Privately-funded, air-launched winged light satellite launcher. More...
  • Pegasus/HAPS American air-launched orbital launch vehicle. Five stage version consisting of 1 x NB-52 + 1 x Orion 50S + 1 x Orion 50 + 1 x Orion 38 + 1 x HAPS More...
  • Pegasus H American air-launched orbital launch vehicle. Four stage vehicle consisting of 1 x L-1011 + 1 x Orion 50S + 1 x Orion 50 + 1 x Orion 38 More...
  • Hyper X American test vehicle. Two stage vehicle consisting of 1 x NB-52 + 1 x Orion 50S More...

Associated Propellants
  • Solid Solid propellants have the fuel and oxidiser embedded in a rubbery matrix. They were developed to a high degree of perfection in the United States in the 1950's and 1960's. In Russia, development was slower, due to a lack of technical leadership in the area and rail handling problems. Solid propellants have the fuel and oxidiser embedded in a rubbery matrix. They were developed to a high degree of perfection in the United States in the 1950's and 1960's. In Russia, development was slower, due to a lack of technical leadership in the area and rail handling problems. More...

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