Rolls-Royce has announced today that the company has decided to withdraw from the current competition to power Boeing’s proposed middle of the market – or New Midsize Airplane (NMA) – platform. In a statement Rolls-Royce said that although it believes the platform “complements Boeing’s existing product range, we are unable to commit to the proposed timetable to ensure we have a sufficiently mature product which supports Boeing’s ambition for the aircraft and satisfies our own internal requirements for technical maturity at entry into service”. Rolls-Royce had proposed its UltraFan engine for the programme. UltraFan is a scalable jet engine design

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