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.

EU financial backing for the development of a next-generation military helicopter engine via the European Defence Fund (EDF) has moved a step closer, reports suggest. According to the Euractiv news ...

There's no argument that helicopters are not the same as jets. From their vertical lift to their hovering abilities, helicopters serve a purpose uniquely their own. But that doesn't mean they aren't ...