"Roger Long" wrote in message
...
"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

It sounds interesting, that's for sure.

--
"j" ganz @@
www.sailnow.com