Promontory, Utah. 27 August 2020. Northrop Grumman Corporation conducted its first ground test of an extended length 63-inch-diameter Graphite Epoxy Motor (GEM 63XL) in Promontory,…
Promontory, Utah. 27 August 2020. Northrop Grumman Corporation conducted its first ground test of an extended length 63-inch-diameter Graphite Epoxy Motor (GEM 63XL) in Promontory,…