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Kaman K-225 / YH-22
Kaman’s second helicopter, the K-225, first flew on 10 December 1951.Kaman put the K-225 into limited production in 1949 as the YH-22.
Some were delivered to Turkey for agricultural work. Another, tested by the U.S. Navy, influenced the award of contracts for the HOK-1 and HTK-1 to the company.
Under U.S. Navy contract, Kaman fitted a 175-h.p. Boeing YT-50 gas-turbine engine to a K-225, and this was the first helicopter.with turbine-driven rotors.
Engine: 220 h.p. Lycoming O-435
Rotors: 2 x 2-blade intermeshing
Rotor diameter: 38 ft.
Fuselage length: 23 ft
Loaded weight: 2,700 lb
Max speed: 73 mph
Ceiling: 12,000 ft
Typical range: 194 miles at 65 mph
Seats: 2-3

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