Remove Center of Gravity Remove Tail Remove Torque
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Everything You Need To Know About Ailerons

Pilot Institute

The rotational force thats needed to move an object about an axis is called torque. The simplest formula for torque is: Torque = F x L L is the distance between the object and the axis of rotation, also called the moment arm. Most of the ailerons mass lies behind the hinge, making it tail-heavy.

Aileron 90
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Nothing Small About It

Plane and Pilot

True, a slightly higher aspect ratio wing was desired, which in turn required a larger vertical tail and thus a little extra mass, but the size, approximately 20% larger than a Widgeon, was set. Another advantage of the counter-rotating props is the elimination of torque roll.