The vertical tail side force is an aerodynamic effect generated by the vertical stabilizer at the rear of an aircraft. This force counters adverse yaw, preventing uncontrolled rotation about the vertical axis during maneuvers. It contributes to maintaining directional stability and coordinated flight. The formula to calculate vertical tail side force is as follows:
Where:
- is the vertical tail lift curve slope in 1 per radian,
- is the vertical tail angle of attack in radian,
- is the vertical tail area in m2, and
- is the dynamic pressure at the vertical tail in Pa.
- Yv is the vertical tail side force in N