convertiplane

A convertiplane is an aircraft that can take off and land vertically, similar to a helicopter, and then convert to a fixed-wing configuration for forward flight. This type of aircraft falls under the category of V/STOL (vertical or short takeoff and landing) vehicles.12

There are two main types of convertiplanes:
* Convertible rotorcraft: The most prominent example is the tilt-rotor aircraft, like the Bell/Boeing V-22 Osprey. In these, the helicopter rotors tilt vertically for lift and horizontally for forward flight.2
* Convertible airplanes: These use propellers and have configurations such as deflected thrust, tilt wing, tilt duct, or tilt propeller.2

Convertiplanes aim to combine the vertical takeoff and landing capabilities of helicopters with the higher speeds of conventional aircraft.2