"dbraun" wrote

You may want to know that there is a
prop shop called Bay Propeller (510-337-9122) that has a technique
for
modifying fixed props. They tap the blade tips over to create little
tiplets. They claim it eliminates prop walk AND increases thrust. I
have
no personal experience with their results, but it would be worth a
try.

This is a very cool idea and there are some sound physics behind it.
I doubt that it completely eliminates prop walk but it might will
reduce it to the point that it isn't noticable. Prop walk has a lot
to do with the vortexes thrown off the tip if any airfile and tiplets
reduce them. That's why you see them cropping up on the wings of most
new aircraft.

I'm not endorsing or claiming that this does work, just that the
rational is solid enough that I wouldn't reject it out of hand.

--

Roger Long