AFRL Completes Ground Tests Of Scaled-up Scramjet Engines

Aerojet Rocketdyne completed a series of hot-fire tests of an scramjet hypersonic engine under an AFRL program.
Credit: Aerojet Rocketdyne
Ten years after the X-51 first flew under scramjet power, the U.S. Air Force Research Laboratory (AFRL) has completed ground tests of air-breathing hypersonic engines that could accelerate a vehicle 10 times the X-51’s size to speeds in excess of Mach 5. In November, an Aerojet Rocketdyne scramjet...

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