Several Boeing models make use of serrated engine nacelles, or chevrons, to reduce noise, but Airbus doesn’t - here’s why not.
Several Boeing models make use of serrated engine nacelles, or chevrons, to reduce noise, but Airbus doesn’t - here’s why not.
Every design is different, and every design choice has advantages and penalties. In short, Airbus doesn’t use them because of increased fuel consumption, since they found other ways to reduce noise.