The dihedral angle in flight mechanics refers to the acute angle formed between the wings of an aircraft, measured along the lateral axis. This design feature contributes to the lateral stability of the aircraft, promoting a self-righting tendency when the aircraft experiences a roll disturbance. A positive dihedral angle results in an upward tilt of the wings, while a negative dihedral angle tilts the wings downward. The formula to calculate Dihedral angle as follows:
Where:
- Vβ is the sideslip velocity in m/s,
- Vn​ is the side Velocity Normal Component in m/s.