Ailerons Ailerons can be used to generate a rolling motion for an aircraft.
Ailerons are small hinged sections on the outboard portion of a wing.
This slide shows what happens when the pilot deflects the right aileron upwards and the left aileron downwards. The banking creates an unbalanced side force component of the large wing lift force which causes the aircraft's flight path to curve . The ailerons work by changing the effective shape of the airfoil of the outer portion of the wing. As described on the shape effects slide, changing the angle of deflection at the rear of an airfoil will change the amount of lift generated by the foil. With greater downward deflection, the lift will increase in the upward direction.