Originally Posted by
rcphotog
I used a standard servo connected to torque links for the bottom ailerons which in turn were connected to the top ailerons via slave rods. It's a very common method used on biplanes with four ailerons. Sometime about 30 years ago people began using a servo for each aileron. While I think that is overkill for small biplanes 60" span and under, but probably necessary on bigger biplanes. Especially ones used in IMAC competition. Those are typically larger than 25% scale and heavier than 10 pounds.
I have that setup on some of my old Flair Scout biplanes which is OK for scale type flying. My Wotswot has one per wing pair with top to bottom link rods. With the 1/4 scale Pitts I'd want to at least have the 2 servo setup but as the hatches are cut into the wings may go that route.
Thanks for you're input.