The Journal of Space Commerce

The Journal of Space Commerce

RS-68A Engine Completes Hot-Fire Acceptance Test

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Tom Patton
Apr 14, 2021
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The RS-68A hydrogen-fueled rocket engine built by Aerojet Rocketdyne has completed its final hot-fire acceptance test for use on the United Launch Alliance (ULA) Delta IV Heavy launch vehicle on the B-1 Test Stand at NASA’s Stennis Space Center in Mississippi.

“We’ve continued to improve the RS-68 engine, which today remains the most powerful hydrogen-fu…

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