Turboshaft-powered aircraft

military tilt-rotor aircraft family by Bell Helicopters and Boeing

twin-engined tiltrotor VTOL aircraft by Agusta and Bell

tiltrotor aircraft under development

1963 experimental tiltrotor aircraft by Curtiss-Wright

1966 experimental aircraft model by Bell

experimental gyrodyne

1977 experimental tiltrotor model by Bell

experimental military tilt-wing aircraft

French STOL transport aircraft with 4 turboprop engines, 1959

tiltrotor unmanned aerial vehicle prototype

experimental helicopter by Vertol, later Boeing

1977 trainer aircraft model by Rhein-Flugzeugbau

Experimental Aircraft

1958 experimental VTOL aircraft model by Doak Aircraft Company

1972 prototype transport tiltwing by Canadair

1959 VTOL research aircraft