Originally Posted by
tdracer
Well, according to several Boeing Propulsion types (and engine company types) I've talked to over the years, yes they do. Not so much at takeoff, but during approach/landing (the marks can be fairly dramatic at idle - especially the twirly ones)
Agreed, that what I was taught on my RAF engine courses, it is supposed to look like an eye when turning, and “mimics” nature where butterflies have large eye patterns on their wings to scare off predators such as birds, as well as indicating it is turning to warn Groundcrew, indeed that was also why the strobing prop design came out, though it had an hypnotic effect on some people.
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