Tome wrote: "but the 555 doesn't have enough channels to work the programmable aileron functions in my 8UAF's." Sure it does, read the appendix to Don Edburgs book. It's quite simple. Cheers, Nathan Woods Temple Hill Slope Squadron Orange, California [EMAIL PROTECTED] Check out the THSS Website at: http://home.earthlink.net/~windrider007/index.html RCSE-List facilities provided by Model Airplane News. Send "subscribe" and "unsubscribe" requests to [EMAIL PROTECTED]