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.

Rolls-Royce and Pratt & Whitney are two of the largest engine manufacturers in commercial aviation. Their engines are used across long-haul and short-haul fleets worldwide, including widebodies like ...

Pratt & Whitney continues to insist its engine offering for the next generation of single-aisle aircraft will be a traditional ducted fan engine, eschewing the open-fan design of its rival CFM ...