The zero-lift lift coefficient () is an important aerodynamic parameter in flight mechanics that represents the lift coefficient of an aircraft’s wing when the wing is at an angle of attack () of zero degrees, or in other words, when it is not producing any lift.
- is the zero-lift lift coefficient of the wing. It represents the lift coefficient when the wing is at an angle of attack () of zero degrees or when it is producing no lift.
- is the lift curve slope of the wing. It quantifies how the lift coefficient () changes with changes in the angle of attack (). It is usually expressed in radians per radian.
- is the imaginary unit, which is commonly used to represent oscillatory or imaginary components in equations.
- is the angular frequency, which indicates the rate of oscillation or vibration in radians per second.
- represents the angle of attack at which the wing experiences zero lift, known as the zero-lift angle of attack.