ELKTON, Md. – Dec. 20, 2024 – Northrop Grumman Corporation (NYSE: NOC) announced a series of successful static fire tests of a new 21-inch second-stage solid rocket motor (SRM) in support of the U.S.

Early engines that routed intake air through the crankcase required the lubricating oil be mixed with the fuel, resulting in the blue smoke that Lawn Boy mowers and outboard boat motors still made ...

Ursa Major said it developed a new solid rocket motor from scratch in four months, and has now flown it twice in partnership with Raytheon. (Ursa Major) Raytheon and growing propulsion firm Ursa ...