This is what I was doing. I have an OS 46AX that has never been run. It was purchased to go on a Spacewalker2 that is giving me all sorts of problems (that will be another post sometime). What I wanted to do is install the AX on my Ultra Stick 40, that right now has a OS 46FX on it. No problem, right? Well after I install the AX the plane goes nuts. It will not pass a radio check at all! I have not had any problems with the plane or the FX.

What are some options for correcting this? Right now the throttle pushrod connects to the engine with a Z bend. I thought there maybe some metal to metal contact, but the throttle arm on the AX is plastic.

BTW when I say interference, I mean the radio sitting on the ground right beside the plane, both turned on. I am not even touching the radio and the control surfaces are randomly going up and down, etc. I walk away from the plane with the radio in hand, not touching the control sticks and same thing, the plane acting like it is possessed.