First Flight: Electric, Untethered, Piloted Helicopter
Pascal Chretien of France flew his own electric-powered helicopter design untethered for two minutes and 10 seconds last month, beating out Sikorsky’s Firefly for the first flight of its kind. Chretien, an aerospace engineer and helicopter pilot, spent about a year working on the project, mostly on his own, according to Gizmag. He devised several […]