Norwegian Dreamliner på gate osl 30/6

[Someone]

Originally Posted by jb1

Sikkert tatt opp foer her, men hvilken funksjon har de taggete kantene bak paa motorene?

Kortversjonen:

http://en.wikipedia.org/wiki/Chevron_(aerospace)

In aerospace industry, chevrons are the sawtooth patterns on the trailing edges of some jet engine nozzles that are used for noise reduction