John Normille....it wouldn't take a reply at your post, so I have to
post a new one. Go to www.rotorcraft.com and get to the Forum.
You'll find almost nothing but rotorheads and I've never seen a
question go unanswered. Also go to the Popular Rotorcraft Association
website. I don't have the URL handy, but just do a search and you
should find it easily.

Ken J. - Sand 'is Eggo