Originally posted by Jim_McIntyre
U'mm. Maybe they didn't want to install torque tubes....
Differential can be easily set up mechanically (it's what we did before computer radios). Simply choose a servo hole off center.
But maybe I shouldn't reply I didn't 'set up' a GP ARF, I just built mine. 
I think that qualifies. I guess the real question is, does it need any differential? I am familiar with setting them up mechanically especially by raking back the control horn, thought we went to computer radios to get away from that. Much easier, but if differential is not needed, why bother?
Hey! I have been considering adding authentic wing skids! I have been looking at old photos and noticed that they were wood, but AXE HANDLE's!? Do you know where to get some 1/4.5 scale Axe handles? Figure is the Baron needed them I will. Opps looks like the one on the left wing is missing. Maybe I will just make a profile axe handle with ply and glue it to the inside of the wing tip rib.
BTW is the airfoil on yours scale? Thought the original was somewhat convex.