Startup Hill Helicopters has secured nearly 1,500 deposits for its HX/HC50 single-engine rotorcraft before the aircraft’s first flight—and now it finally has an engine to power them. Development of ...
LONDON—Hill Helicopters, the UK startup developing the HX/HC50 single-engine light helicopter, has further delayed a planned first engine run of its independently developed GT50 turbine powerplant.
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