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W R Murray Chief Test Pilot takes Kaman K-225 125477
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W R Murray Chief Test Pilot takes Kaman K-225 125477
W.R. Murray, Chief Test Pilot, takes Kaman K-225, 125477, equipped with a Boeing 502-2 on its first flight becoming the worlds first gas turbine-powered helicopter. 10 December 1951. Date: 1951
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Media ID 9905097
© The Royal Aeronautical Society (National Aerospace Library) / Mary Evans Picture Library
Boeing Chief Equipped Helicopter Kaman Murray Pilot Powered Takes Test Turbine Worlds
EDITORS COMMENTS
In this historic photograph, W.R. Murray, the esteemed Chief Test Pilot of Kaman Aircraft, confidently takes the controls of the Kaman K-225, serial number 125477, during its inaugural flight on December 10, 1951. This groundbreaking moment marked the first time a gas turbine engine powered a helicopter, making it an essential milestone in aviation history. The Kaman K-225, also known as the H-22 Helicopter, was a transport helicopter designed and manufactured by Kaman Aircraft Corporation. Murray's test flight of this innovative aircraft with the Boeing 502-2 turboshaft engine onboard was a significant achievement that paved the way for the widespread use of gas turbine engines in helicopter design. The Kaman K-225 was a substantial improvement over earlier piston-engine helicopters, offering increased power, efficiency, and performance. The adoption of gas turbine engines revolutionized the helicopter industry, enabling larger, more capable helicopters that could fly longer distances and carry heavier loads. Murray's expertise and skill as a test pilot were crucial to the success of this pioneering flight. With a career that spanned over three decades and numerous aviation milestones, Murray's legacy as a pioneer in helicopter development is undeniable. In this image, we see him poised at the helm of the Kaman K-225, ready to embark on a new era of helicopter flight. This photograph captures an essential moment in aviation history, as the Kaman K-225, equipped with a Boeing 502-2 turboshaft engine, takes to the skies for the first time, becoming the world's first gas turbine-powered helicopter.
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