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Kaman K-225

In 1951, Kaman replaced the reciprocating engine that originally powered this K-225 with a Boeing 502-2 gas turbine to demonstrate the potential of jet-powered helicopters to the Navy. The K-225 served as the prototype for Kaman's successful HOK series of military helicopters, which incorporated a cabin in place of the open cockpit. The engine currently on the aircraft is not original.

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Taken on May 25, 2008