Rocket engine scores ‘perfect 10’ in 10-day test for Phantom Express space planeA rocket engine built from spare space shuttle parts*— and the team behind the engine — passed a grueling 10-day, 10-firing test that sets the stage for Boeing’s Phantom Express military space plane. “We scored a perfect 10 last week,” Jeff Haynes, Aerojet Rocketdyne’s program manager for the AR-22 engine, told reporters today during a teleconference. The hydrogen-fueled AR-22 is largely based on the RS-25 engine that was used on the space shuttle and will be used on NASA’s heavy-lift Space Launch System. “We’ve upgraded the ‘brain’ for this derivative mission,” using an advanced controller, Haynes said. Aerojet, Boeing and… Read More




https://www.yahoo.com/tech/rocket-en...175545925.html