Northrop Grumman Corporation dixit:
“Northrop Grumman Corporation conducted its first ground test of a 63-inch diameter Graphite Epoxy Motor (GEM 63) today in Promontory, Utah. Utilizing advanced technologies, the company developed this new rocket motor for use on the United Launch Alliance (ULA) Atlas V launch vehicle.
Northrop Grumman began developing the motor just three years ago, reaching this static test milestone in rapid time for such a complex drop-in solution to an existing launch vehicle. The team developed the innovative design that tailors motor performance to meet ULA design objectives under a cooperative development program.”
Video Credit: Northrop Grumman Corporation