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I believe that most aerobatic airplanes have pushrod actuated control surfaces. The CAP 10B that I fly from time to time has pushrods on everything, even the rudder, which has a tiller arm that allows for cables to exit and connect to the rudder. |
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Ryan,
Im pretty sure that they use cable systems. I saw an Extra 330 at oshkosh with its skins off and it was all cable operated. I think like RC330 said that if they were infront of the hinge line it would act like the aerodynamic CB on the tail surfaces do. But think about it, if you fly a R/C plane that has CB's on the tail and then fly sonething like a 260 that doesnt have them on the elevators, do you notice any diffrence in how the plane acts, probly not, because there is so much power from the servo that it is almost impossible to tell the diffrence. And that also depends on how the planes are set up in comparision to each other.