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Rolls Royce had to design special extra large engines for the A380. Because of the large diameter of the fan they had to use clever blade geometry to overcome p
by willyt 9y ago
Rolls Royce had to design special extra large engines for the A380. Because of the large diameter of the fan they had to use clever blade geometry to overcome problems with supersonic airflow at the ends of the fan blades. So I'm guessing that two even larger engines would be tricky.
- selectodude 9y agoA380's engines are the same size as the early-90s 777 engines, and smaller than both the GE90 and the new GE9X. They didn't have to do anything tricky for them. You may be thinking of the new Pratt & Whitney PW1000G, which will be on the A320neo, which has a geared turbofan for that reason.