Wm
Yes I have his program and I not being an aeroengineer type still can use it and see some good results from different airfoils and his flap bender helps you locate the proper location for the flaps as well as the proper amount. The computer generated wind tunnel is the best. I picked an airfoil out for my scratch built v-22 osprey and when I found the one that gave me the most lift I found that it was the same airfoil that the first XV-3 that bell built.Which was like mine -==== heavy for the power plant .I still have not been able to make the transition to forward flight but the new wing did keep me up longer than the old ones .This year I am using some twisted blades that I hope will pull me thru the air fast enough for the wing to stay wingborne.

By the way John happened to pass through my area last year and stopped in for a visit and he is also a very nice young man to talk to and will help you with any aspect of engineering problems that you might go through.He also is an avid R/C pilot as well as a full scale aeroengineer.

hope this helps
If you like email me for more

Interested in R/C VTOL's ?
Go to : http :// www.geocities.com/v22chap/vtol.html
Larry