RS-68A Engine Completes Hot-Fire Acceptance Test
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…



