An aircraft is a machine that is able to fly by gaining support from the air.
An airplane or aeroplane (informally plane) is a powered, fixed-wing aircraft that is propelled forward by thrust from a jet engine, propeller or rocket engine.
The Bell XV-3 (Bell 200) is an American tiltrotor aircraft developed by Bell Helicopter for a joint research program between the United States Air Force and the United States Army in order to explore convertiplane technologies.
The delta wing is a wing shaped in the form of a triangle.
A helicopter is a type of rotorcraft in which lift and thrust are supplied by rotors.
The McDonnell XV-1 is an experimental compound gyroplane developed for a joint research program between the United States Air Force and the United States Army to explore technologies to develop an aircraft that could take off and land like a helicopter but fly at faster airspeeds, similar to a conventional airplane.
The Sikorsky Aircraft Corporation is an American aircraft manufacturer based in Stratford, Connecticut.
The United States Air Force (USAF) is the aerial and space warfare service branch of the United States Armed Forces.
The United States Army (USA) is the land warfare service branch of the United States Armed Forces.