Yawing Moment Coefficient Given By Sideslip Angle Calculator

The yawing moment coefficient (C_n) is a dimensionless aerodynamic parameter that describes the rotational force, or moment, experienced by an airfoil or a wing around its vertical axis when subjected to a sideslip angle in an airstream. The yawing moment coefficient provides insight into how an aircraft responds to yawing motion. A positive C_n​ indicates a stabilizing effect, meaning the aircraft tends to return to its original heading when disturbed. A negative C_n​ implies a destabilizing effect, potentially leading to uncontrolled yawing motion. The formula to calculate Yawing moment Coefficient as follows :

Where:

• V_v​ is the vertical tail volume ratio,
• η_v​ is the tail efficiency factor,
• C_v​ is the vertical tail lift curve slope in 1 per radian.
• $\beta$ is the sideslip angle in radian.
• $\sigma$ is the sidewash angle in radian.