ORIGINAL: Xairflyer
On my Turbine bobcat I fitted a hitec HS-5125MG inside the stab for the elevator, I would have been happy to fit the HS-125MG non digital version if it was not out of stock, I then fitted JR NES-517 std ballraced servos to the ailerons and HS-81's to the rudders, I always like to fit a metal gear servo to a steerable noseleg just to absorb the kicks they get especially on grass.
I'm not flying a turbine, but I know that there is NO WAY that the STD JR servos will hold my aileron's at full speed and at full deflection.
There's simply far too much force acting to counteract the movement of the servos.