The V-22 Osprey is a multi-mission aircraft that combines vertical take-off and landing capability with high speed, high altitude flight. The Osprey is a tilt-rotor aircraft with a 38-foot rotor system and engine/transmission nacelle mounted on each wing tip. It can operate as a helicopter when taking off and landing vertically. Once airborne, the nacelles rotate forward 90 degrees for horizontal flight, converting the V-22 to a high speed, fuel-efficient turboprop airplane. The wing rotates for compact storage aboard ship. Its first flight occurred in March 1989.

Credits - NASA