LONDON—British light rotorcraft developer Hill Helicopters has pushed back the timeline for the first run of its in-house-developed GT50 turboshaft engine and the first flight of the HX50 ...
Rolls-Royce intends by 2028 to be running two versions of its UltraFan demonstrator engine – one for widebodies and the other for single-aisles – with flight tests to follow by the end of the decade.
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