Rolls-Royce Starts Work on First UltraFan Engine | Aviation International News

Rolls-Royce Starts Work on First UltraFan Engine

Planning to complete its UltraFan demonstrator by year-end, Rolls begins to build the engine’s first example in Derby, UK.

The Rolls-Royce UltraFan will feature a 140-inch-diameter fan. (Photo: Rolls-Royce)

By Gregory Polek • Senior Editor

March 29, 2021

Rolls-Royce has begun work on the first UltraFan engine at its dedicated DemoWorks facility in Derby in the UK, the company confirmed on Monday. To become the largest aero engine in the world, the UltraFan features a 140-inch fan diameter and forms the basis for a potential new family of engines capable of delivering a 25 percent fuel efficiency improvement over the first-generation Trent turbofan. Rolls-Royce expects to complete work on the UltraFan’s demonstrator engine by the end of the year.

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