Hud-n-OTOW,

After thinking about this a bit - the BUSA Bristol M1 is not a speed demon by any sorts. If I remember correctlly, the wing is a one piece wing (at lest is should be with a 60" span). And with the undercambered airfoil it's not a speed demon by any sorts. If you mount aileron servo's they will be way out towards the tips. On a plane like this, you may find it easier to mount the aileron servo in the center of the wing and run stiff push rods out to bell cranks which are hooked to the ailerons. This has been done for the past 60+ years. For the elevator/rudder, don't mount them at the tail, just run long pushrods made from 1/4" hardwood or dowels direct from the servo to the control surfaces. If you need any extension, it would probably be a 6" between the receiver and the aileron servo.

Hogflyer