Encyclopedia Astronautica
Orion 50


Solid propellant rocket stage. Loaded/empty mass 3,370/345 kg. Thrust 118.20 kN. Vacuum specific impulse 292 seconds.

Cost $ : 3.000 million.

Status: Active.
Gross mass: 3,370 kg (7,420 lb).
Unfuelled mass: 345 kg (760 lb).
Height: 2.65 m (8.69 ft).
Diameter: 1.27 m (4.16 ft).
Span: 1.27 m (4.16 ft).
Thrust: 118.20 kN (26,572 lbf).
Specific impulse: 292 s.
Specific impulse sea level: 240 s.
Burn time: 73 s.
Number: 58 .

More... - Chronology...


Associated Countries
Associated Engines
  • Pegasus-2 Hercules solid rocket engine. 118.2 kN. Isp=290s. 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...
  • ARPA Taurus American all-solid orbital launch vehicle. Four stage version consisting of 1 x TU-904 + 1 x Orion 50 + 1 x Orion 50 + 1 x Orion 38 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...
  • OBV American anti-ballistic missile. Suborbital booster for the US Missile Defense Agency's Ground-based Midcourse Defense system's EKV ballistic missile kill vehicle. The basic OBV consisted of the upper three stages and guidance system from the Taurus orbital launch vehicle (essentially a wingless Pegasus-XL). The OBV was launched from an open pad; the operational version was to be silo-launched. 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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