The ground test of the extended length 63-inch-diameter Graphite Epoxy Motor, known as GEM 63XL, is a key milestone on the way to giving the rocket its next-generation engines. The United Launch ...

Northrop Grumman conducted a validation test of its GEM 63XL rocket motor on Jan. 21, 2021, at its Promontory, Utah, facility. Credit: Northrop Grumman WASHINGTON — Northrop Grumman announced ...

A Northrop Grumman spokesperson said the enhanced GEM 63XL is 15 percent to 20 percent more powerful than the "standard" GEM 63 motor. The enhanced motor uses "state-of-the-art manufacturing ...

The 63-in.-dia. Graphite Epoxy Motor (GEM 63XL) is being created to add... Northrop Tests GEM 63XL Rocket Motor is published in Aerospace Daily & Defense Report, an Aviation Week Intelligence ...

And what exactly is a Graphite Epoxy Motor solid rocket booster? "At approximately 72 feet long, the GEM 63XL solid rocket boosters are the largest single-cast motors, which means that they are ...

Northrop Grumman received a multi-year contract valued at more than $2 billion from United Launch Alliance for increased production of solid rocket boosters. Credit: Northrop Grumman WASHINGTON ...

The booster, a 63-inch-diameter graphite epoxy motor called GEM 63XL, was developed in partnership with United Launch Alliance, whose Vulcan Centaur rocket will soon be propelled to the moon with ...

Northrop Grumman Corporation (NYSE: NOC) has delivered the first two 63-inch-diameter extended length Graphite Epoxy Motors (GEM 63XL) to Cape Canaveral Space Force Station, Florida. The solid ...

See those two big gouts of flame in the photo up above? Those are firing GEM 63XL solid rocket boosters (SRBs), built and supplied to ULA by Northrop Grumman (NYSE: NOC). They give the Vulcan ...

"We recovered some small pieces of the GEM 63XL SRB nozzle that were liberated in the vicinity of the launch pad," Arnold said. "The team is inspecting the hardware to aid in the investigation." ...

Two BE-4 methane engines from Blue Origin and two GEM 63XL solid rocket boosters from Northrop Grumman power the first United Launch Alliance Vulcan rocket toward space pic.twitter.com ...