Hybrid Solid Rocket Motor Has Successful Test Firing

Credit: Credit: SPG
The Space Propulsion Group Inc. carried out a successful 11-sec. test firing of a developmental, 22-in. flight-class hybrid solid rocket motor fueled by paraffin and liquid oxygen on June 29 at its Butte, Mont., Aerotech test facility. The Sunnyvale, Calif.-based company, which was formed 13 years...

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