I always looking for something to hook up my 7th or 8th channel too, and here is somethig I just thought of.

What if I placed my battery (I fly electric, but this would also work with the receiver battery in a Glow/Gas plane) on a track so that a servo can move it fowrad or aft in a controlled fashion. In this way I could setup my plane with forward CG for takeoff and landing and rearward CG for aerobatics.

Has anyone tried this and if so how did it work out?

-Q.