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Tony Osborne
August 20, 2026
Hill says the GT50 engine has been developed at a fraction of the cost that its competitors could achieve, thanks to the company’s vertically integrated supply chain and manufacturing processes. Credit: Hill Helicopters
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 the company’s GT50 engine, designed and manufactured entirely in-house, has paced the HX/HC50 program…
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