The topic of high lift devices keeps coming up in the "Aerodynamics" forum too, so I've started hosting a "High Lift" (non-commercial) set of pages on my web site, at
http://homepage.mac.com/mikejames/rc...ite/index.html
All contributions (articles and drawings, not money) are welcome, and if you send something for me to post, I will credit you as the author. Hopefully, as it grows, it will become a reference we can all use. Just email me the files and info, and I will usually post them the same day.
Thanks.
PS> There's an article by Larry Wolfe, in a 1993 issue of Model Airplane News on how to construct leading edge flaps, and Bob Fiorenze also did an article on implementing them on his F-18. (Sorry, don't remember exactly where that was.)