Ten-motor Electric Plane Takes Off
The GL-10 prototype takes off in hover mode like a helicopter (Photo: NASA Langley/David C. Bowman) In seeking a compromise between helicopters and fixed-wing aircraft, engineers in recent years have opted for tilt rotors, but NASA has dusted off and improved on a tilt wing aircraft design that takes off and lands like a helicopter and flies like an airplane. Called the Greased Lightning, or GL-10, the unmanned prototype made a successful vertical [...]