Tipjet-powered helicopters

1950s British compound gyroplane

type of aircraft

1950 experimental helicopter model by Hiller

American twin-engine heavy lift helicopter prototype

1954 experimental compound gyroplane model by McDonnell Aircraft

1962 light helicopter

1952 experimental helicopter model by American Helicopter Company

1964 experimental VTOL helicopter model by Hughes

1940s American experimental lightweight helicopter

convertiplane testbed (stoppable rotor), U.S. Army, cancelled c.1954

type of aircraft

French light utility helicopter

helicopter

1947 light helicopter family

1970s German battlefield reconaissance system

British compound gyroplane

type of aircraft

type of aircraft

experimental convertiplane