Watch A 10-Engine Drone Transform From A Helicopter Into A Plane

Watch a 10-engine drone transform from a helicopter into a plane

Video: NASA's Greased Lightning GL-10 is a beast of a drone (it has 10 engines!) that's the closest thing we have to a Transformer in real life. It can flip itself into a helicopter and then fly like an aeroplane and then revert back to helicopter mode. It's awesome seeing the wings tilt back and forth as it changes gears.

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