A V-22 Osprey passes overhead while hiking at the St. Sebastian River Preserve State Park.

From Boeing, the manufacturer of the V-22 Osprey:

“The V-22 Osprey is a joint service multirole combat aircraft utilizing tiltrotor technology to combine the vertical performance of a helicopter with the speed and range of a fixed-wing aircraft. With its rotors in vertical position, it can take off, land and hover like a helicopter. Once airborne, it can convert to a turboprop airplane capable of high-speed, high-altitude flight. This combination results in global reach capabilities that allow the V-22 to fill an operational niche unlike any other aircraft.”