Center of Gravity Rudder Torque 
Pilot Institute
FEBRUARY 20, 2025
Adverse yaw is a side effect of aileron use, countered by rudder input. 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. What Is an Aileron?
Plane and Pilot
OCTOBER 3, 2024
Another advantage of the counter-rotating props is the elimination of torque roll. This is the tendency to dig in the left tip float during takeoff while countering engine torque. An elegantly simple rope system inside the fuselage raises and lowers the Gweduck’s water rudder mounted inside the base of the main rudder (right).
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