thanks Eganwp that makes alot of sense. im sure the cessna will be setup with the best possible mechanical setup. hence is now looking like needing alot less servo torque than first thought.

so the 5645 be enough on the rons of the suk. i will be mainly 3d flying and have no want to fly imac. i will have to check the servo arms and see about the length they are. but now i can see this making more of a difference over the torque needed. and yes i want max throws with it so by the sound will need more torque to achieve this