Kaman K-225 Bu. No. 125477 in hover Published on December 16, 2012 in 11 December 1951Full resolution (1024 × 816) Next → Test pilot William R. Murray at the control of Kaman K-225, Bu. No. 125477, with a Boeing 502-2 gas turbine engine installed, hovering out of ground effect. (U.S. Navy)