The Greased Lightning drone of GL-10, developed by NASA, is a tiltrotor design with the vertical take-off capabilities of a helicopter and the maneuverability of an airplane. James Vincent, a journalist at The Verge, wrote the article NASA’s Greased Lightning drone hovers like a helicopter, flies like a plane which includes a video of the drone in action.
The current lightweight design could have a number of applications, say Fredericks. “It could be used for small package delivery or vertical takeoff and landing, long endurance surveillance for agriculture, mapping, and other applications. 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.”
The GL-10 is similar to the controversial V-22 Osprey, a design the US military has previously experimented with.