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  • Lockheed AH-56 Cheyenne

    The Lockheed CL-840 first flew on September 21, 1967 and was the winner of the US Army 's 1965 Advanced Aerial Fire Support System, AAFSS , competition.

    Grown from the experimental helicopter XH-51 was equipped with an additional pusher prop on the tail and had a max. speed of 400 Km/h.

    Lockheed XH-51 XH-51 helicopter

    By 1968, 10 pre-production units (serial numbers 66-8826 / 8835) were delivered and others 375 units were approved, but meanwhile the Army acquired AH-1G Huey Cobras, a private - venture design of Bell.

    Finally, by the end of 1969, with Cobras already in Vietnam, the US Army cancelled the AH-56s request.

    Lockheed AH-56 Cheyenne


    Functions: Gunship
    First Flight : Sep 21, 1967
    Crew: 2

    AH-56A :
    Engines: 1 * 3435 shp General Electric T64-GE-16
    Speed: 370 km/h -- Max: 408
    Range: 1400 km
    Rate of Climb: 1000 m/min
    Weight: Empty: 5320 kg -- Max: 13600
    Rotor Span: 15.36 m
    Length: 18.30 m
    Height: 4.10 m


    The AH-56 crash down moments after these pictures were taken by Lee Jones for NASA during a full power test on Sept 17, 1969
    AH-56 wind tunnel

    See Also:
    Bell AH-1 Cobra
    AH-64 Apache

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