Sure, rudder area is 65 sq. inches and speed is 8500 rpm on a 16 X 8 prop, APC. Maybe 70% eff.?

Servo is connected to a belcrank which is pull/pull to surface. Servo runs through a full travel at 130 percent on JR radio to get 40 degrees travel in each direction on the belcrank and surface. In other words the servo has a mechanical advantage. I did this to get full resolution and torque. I didn't like what I saw when running the pull pull directly on the servo. It was not using enough throw. The bellcrank setup works much better, but I am still seeing some blowback. No wonder the TOC guys run so many rudder servos!