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Aerojet tests R-4D engines for Orion Service Module

Submit on Friday, May 30th, 2008 06:00

Aerojet said it successfully completed 250 hot-fire test sequences of its R-4D 445-N (100-lbf) thrust bipropellant engine. The test included over 20,000 starts under a broad variety of conditions expected for NASA’s Orion Service Module.
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