Question for the history buffs

[Soviet Ace]

Originally Posted by Robotic Pope

So what physiological affect does this have on ground staff in modern airports? lol

It is there so you can see it is spinning. It was often painted big and bright on german WWII planes because it looked good, like nose art. I don't think the germans ever used the usual coloured propeller tip method.

Originally Posted by Wissam24

Yes. People have given a definitive answer. It's so people can see that the propelloor is spinning. How could it be a psychological effect, people will hardly be flying at each other, certainly not long enough to notice that

It was a joke. I have no idea how it would work for a physiological affect?