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Old 03-18-2003, 07:31 PM
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Default servo: oz/in to pounds

I see what you're asking but I don't think there is an easy answer. In a vertical dive, the ailerons are in trail and there is theoritically zero servo torque. But something must keep them for fluttering. I believe the stiffness of the gears and linkage is a major factor.

No doubt a large plane flown slowly can use smaller servos. Especially if it is not rigged for "3D" throws. If a servo is momentairly overloaded, it will move slowly and control would be sluggish. Not a big deal if you are flying cautiously. The big risk is from broken gears if flutter should develop. A tail slide manuever could also develop large, rapid servo loads.