The National Aeronautics and Space Administration (NASA), a government agency responsible for civilian space program of the United States, has been developing a battery-powered plane that has 10 engines and can take off like a helicopter but can fly efficiently like an airplane called Greased Lightning or GL-10.
One of the prototypes successfully completes flight test.
“It could be used for small package delivery or vertical take off and landing, long endurance surveillance for agriculture, mapping and other applications,” said Bill Fredericks, an aerospace engineer. “A scaled up version, much larger than what we are testing now, would make also a great one to four person size personal air vehicle.”
“During the flight tests we successfully transitioned from hover to wing-borne flight like a conventional airplane then back to hover again. So far we have done this on five flights,” he added.
“We were ecstatic. Now we’re working on our second goal, to demonstrate that this concept is four times more aerodynamically efficient in cruise than a helicopter.”