u/14060m

Howdy folks,

I apologize for what may be a noob question. I have a new UMX Cub 2 S and out of the box it needs 39% subtrim (EdgeTX) on the rudder to get it centered.

This seems egregious to me.

Can AS3X/SAFE cause issues with centering? I'm keeping SAFE disabled via a CH6 switch.

Is it possible that the servo arm isn't centered mechanically? Perhaps assembled at 4pm on a Friday.

I know I can bust out the pliers and shorten the rod but I'd rather elimate all other potential causes first.