Boeing’s CFO, Jamie Bell, has admitted the company does not see new engines for the B737NG family resulting in the double-digit efficiency improvements that airlines are after. While new engines will offer a 10-16% improvement in fuel burn, Boeing does not believe that the business case for re-engining is sufficient, as the weight and design changes, and the added cost, look more likely to result in single-digit improvements. Boeing stated its customers “have not shown a real interest in a re-engining".
By the end of the year, Boeing is due to make a decision on whether it will offer new engines for the B737, offer an all-new aircraft or stay with the current B737NG family. The company is working on improvements in composite technology and aerodynamics, but scaling down technology learned from the B787 family into a narrowbody aircraft is a......
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