Aerojet Rocketdyne Engine Passes Final Test-Fire Milestone

The Aerojet Rocketdyne RS-68A engine completed its final hot-fire acceptance test Monday at Stennis Space Center. Three of the rockets are used to power United Launch Alliance Delta IV Heavy rockets into space. The Delta IV Heavy project has four launches remaining. “The throttleable RS-68A engine has been the centerpiece of the Delta IV Heavy…

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