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Why do Boeing's new generation of jets (787, 747-8, 777X, 737MAX) have serrated engine nacelles whilst Airbus' latest (A350, A320neo etc) do not? I understand that Boeing's nacelles reduce turbulence and therefore noiseBoeing's nacelles reduce turbulence and therefore noise. If this is the case, it would make sense for Airbus to utilise them as well, but it doesn't. So my question is, is this a patent thing or has Airbus found other ways to do the same thing?

Why do Boeing's new generation of jets (787, 747-8, 777X, 737MAX) have serrated engine nacelles whilst Airbus' latest (A350, A320neo etc) do not? I understand that Boeing's nacelles reduce turbulence and therefore noise. If this is the case, it would make sense for Airbus to utilise them as well, but it doesn't. So my question is, is this a patent thing or has Airbus found other ways to do the same thing?

Why do Boeing's new generation of jets (787, 747-8, 777X, 737MAX) have serrated engine nacelles whilst Airbus' latest (A350, A320neo etc) do not? I understand that Boeing's nacelles reduce turbulence and therefore noise. If this is the case, it would make sense for Airbus to utilise them as well, but it doesn't. So my question is, is this a patent thing or has Airbus found other ways to do the same thing?

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Steve V.
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Engine nacelles on Why do Boeing andaircraft have serrated engine nacelles, but Airbus does not?

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Engine nacelles on Boeing and Airbus

Why do Boeing's new generation of jets (787, 747-8, 777X, 737MAX) have serrated engine nacelles whilst Airbus' latest (A350, A320neo etc) do not? I understand that Boeing's nacelles reduce turbulence and therefore noise. If this is the case, it would make sense for Airbus to utilise them as well, but it doesn't. So my question is, is this a patent thing or has Airbus found other ways to do the same thing?