Hi Al,

Visit this thread:

http://www.rcuniverse.com/showthread...=slotted+flaps

It's a discussion on multi-slotted fowler flaps, but the drawings and model(s) I built can easily be standard single slots.

I still have the drawings (AutoCAD) and can scale/arrande them to your liking.

My gallery has photo's of the mechinism in action.

Hope this helps...

Craigg