The Kamov Ka-22 Vintokrylscrew-wing) was a rotorcraft developed by Kamov for the Soviet Air Force.
The Ka-22 carried a large payload, having a hold comparable in size to the Antonov An-12.
Eight world records for altitude and speed were set by the Ka-22 in its class, none of which have since been broken.
The Ka-22 first lifted from the ground on 17 June 1959, and made its first untethered flight on 15 August 1959.
Serious control difficulties were encountered, leading to orders being postponed until the problems were solved, and in July 1960 an order was received to manufacture three more Ka-22s. The Ka-22 was in essence a fixed-wing aircraft with rotors fitted above the wing tips.
During its short operational history, a total of eight world records were set by the Ka-22, piloted by D.K. Yefremov and V.V. Gromov.
The aircraft entered an uncontrolled turn to the right, and in efforts to correct the Ka-22 pitched into a steep dive.
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