United States, June 8 -- GE Aerospace announced it completed testing of a megawatt-class hybrid electric engine system developed through NASA's Electrified Powertrain Flight Demonstration (EPFD) project, paving the way for flight tests.The ground test was the company's first to validate the full integrated system, including GE Aerospace-developed motor/generators, power converters and inverters, controllers, Dowty propellers, Avio Aero gearboxes, and a CT7 engine. BAE Systems provided the batteries used and Boeing subsidiary Aurora Flight Sciences supplied the complete nacelle. Throughout the test campaign at Peebles Test Operation in Ohio, teams simulated various flight phases such as taxi, takeoff, climb and cruise. The electric powertrai...