One can only hope that the pilot in this picture was wrapped up well, given that the flight was taking place during winter in Connecticut. Reported by The Engineer in February 1952, the pilot is in charge of the world’s first turbo-rotor flight. News of the flight was given by the US Navy’s Bureau of Aeronautics, which said the initial flight took place on 10 December 1951.
Sixty years ago, The Engineer had a US correspondent who reported that the Kaman Aircraft Corporation had installed a 175hp Boeing XT-50 gas turbine in a US Navy K-225 helicopter to conduct flight tests of the gas turbine.
The unnamed journalist wrote: ’The turbine installation in the helicopter is similar to a turbo-prop installation in a conventional aircraft. The gas turbine was made by Boeing and has been undergoing tests in land and water vehicles.’
This marked the first application of the turbine in a helicopter and engineers were understood to have expected an improved performance compared to helicopters powered by piston engine.
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