How do differential ailerons help in reducing adverse yaw?

Differential ailerons are designed to improve the aircraft's roll control and mitigate adverse yaw, which is the tendency of an aircraft to yaw in the opposite direction of a roll. When one wing is raised by an aileron, that aileron moves up while the other moves down. The aileron that is raised reduces the lift and drag on that wing, while the aileron that is lowered increases both lift and drag on the opposite wing.

The key to reducing adverse yaw lies in the difference in drag created by the differential movement of the ailerons. By creating less drag on the rising wing (which has the aileron raised), the aircraft experiences less resistance on that side, effectively balancing the forces during a roll. As a result, the tendency for the nose to yaw away from the intended direction of the turn is minimized, allowing for smoother and more coordinated turns. This design feature directly addresses the unwanted yaw that typically accompanies a roll maneuver, ensuring better aerodynamic efficiency and pilot control.