Science
Northrop Grumman test fires first GEM-63XL motor for ULA’s Vulcan – NASASpaceflight.com
The first GEM-63XL motor for the ULA Vulcan Centaur’s strap-on boosters was successfully test-fired for…
The first GEM-63XL motor for the ULA Vulcan Centaurs strap-on boosters was successfully test-fired for approximately 90 seconds, sending 449,000 lbs of thrust along with bright fire, loud noise and vibration into the sunny desert sky on Thursday at Northrop Grumman testing facility in Promontory, Utah.The QM-1 was the first of two test firings required before the GEM-63XL is used in operational missions on the new ULA Vulcan Centaur, which has recently won a number of critical US Space Force lau…
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