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  • Tiltrotors

    A tiltrotor aircraft combines the vertical lift capability of a helicopter with the speed and range of a turboprop airplane.
    Their two engines, which tilt on the wings, move the "proprotors" in a counterotating way to counteract the torque of the body.

    1941 Focke-Achgelis Fa 269

    Nazi tilt-rotor VTOL fighter project. Powered by a single radial engine buried behind the cockpit with a fixed wing and two tilt three-bladed rotors. Only a full-scale mock-up was built before allied bombing raids interrupt its development

    Focke Achgelis Fa 269

    1945 Platt and LePage

    proposed and patented the first American tilrotor aircraft but the lack of capital caused the company to shut down in August of 1946

    Platt and LePage

    1950s - 1960s

    Many convertiplanes were built, including the Vertol 76 (1957), Hiller X-18 (1959), LTV XC-142 (1964), Curtiss-Wright X-19 (1963), Canadiar CL-84 Dynavert (1965, picture) and the Nord 500 (1967). They all used a whole tilt wing instead of a tilting engine design

    Canadiar CL-84 Dynavert

    1954 Transcendental Model 1G

    First tiltrotor to fly. It was a single seat aircraft powered by a single piston engine. The only one built crashed in 1955

    Transcendental Model 1G

    August 23, 1955 Bell 200 [XH-33] XV-3

    Starting built in 1953, this experimental aircraft featuring tilting wingtip rotor assemblies flew until 1966. The airframe returns to Texas in 2004 for restoration.

    Bell XH-33 XV-3

    March 17, 1966 X-22

    A V/STOL (Vertical/Short Takeoff and Landing) aircraft with four tilting ducted fans and wings. The X-22 was envisioned to travel from city to city without having a great amount of acreage devoted to airports. Two prototypes built for testing by US Navy, one crashed.


    1969 Bell 300

    Development Mock-up
    Bell 300

    May 3, 1977 Bell 301 XV-15

    Started in 1972 under funding from NASA and the US Army. After three decades is continuing to be used as experimental testbeds.


    1987 Bell/Boeing Pointer

    An RPV tiltrotor, for research and development weighing 250kg: less than one per cent of the future V-22 Osprey

    Bell Boeing Pointer

    March 19, 1989 Bell/Boeing V-22 Osprey

    First tiltrotor to enter serial production

    Bell Boeing V-22

    March 6, 1998 Bell 918 Eagle Eye

    An unmanned aerial vehicle (UAV) for military use

    Bell 918 Eagle Eye

    Bell Boeing Quad TiltRotor (QTR)

    A proposed four-rotor derivative of the V-22 with a cargo capacity equivalent to a C-130 Hercules

    Quad Tilt Rotor

    March 6, 2003 Bell/Agusta BA609

    A civilian six to nine passenger tilt-rotor

    Bell Agusta BA609

    2013 NASA's GL-10 Greased Lightning drone

    With a ten-foot/6.7m wingspan and boasts ten electric engines all on tiltwings. With the wings pointed up, the drone take off and land like a helicopter. Once airborne, they'll tilt forward A civilian six to nine passenger tilt-rotor

    NASA GL-10

    2017 Bell V-280 Valor

    The Bell / Lockheed-Martin is the proposal for the US Army joint Multi-Role (JMR) / Future Vertical Lift (FVL) program to replace the Black Hawk

    V-280 Valor

    2020 Dufour Aerospace Aero2

    Unmanned Aerial Vehicle (UAV) tiltrotor eVTOL hybrid demonstrator

    Dufour Aero2

    2021 Archer Maker

    tilt-six configuration concept demonstrator

    Archer Maker

    2023 Bell V-247 Vigilant drone

    Unmanned Aerial Vehicle (UAV) tiltrotor proposed to be used by the U.S. Marines

    V-247 Vigilant

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