Aerojet Rocketdyne Ramps Up Testing Of New-Build RS-25

RS-25
Credit: NASA
Aerojet Rocketdyne is midway through certification tests of the first new-build RS-25 engine version that will power the core stage of later missions of NASA’s super heavy-lift Space Launch System (SLS) rocket. The first all-new RS-25 built in over 15 years incorporates improvements introduced into...
Guy Norris

Guy is a Senior Editor for Aviation Week, covering technology and propulsion. He is based in Colorado Springs.

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