What happens to the angle of incidence of an airplane at rest when it is in flight?

The angle of incidence of an airplane is defined as the angle between the chord line of the wing and the longitudinal axis of the aircraft. This angle is a structural characteristic of the aircraft and does not change simply because the airplane transitions from being at rest on the ground to being in flight.

As the airplane takes off and enters flight, several aerodynamic forces come into play, including lift, drag, and thrust, which affect the aircraft's performance and attitude. However, the relative angle between the wing's chord line and the aircraft's longitudinal axis remains consistently defined by the aircraft's design and configuration.

While the aerodynamic pitch angle (the angle between the aircraft’s longitudinal axis and the relative wind) can change during flight due to control inputs or changes in airspeed, the angle of incidence itself—an inherent design specification—stays constant unless there is a physical alteration to the wing's mounting or structure. Therefore, the angle of incidence remains the same during the transition from rest to flight.