Why does a wing stall ?
- The lift generated by a wing is dependent upon a smooth accelerated airflow over the the wing.
- At moderate angle of attack the airflow near the trailing edge of the wing become mildly turbulent.
- As the angle of attack increases, the turbulent air progresses forward toward the leading edge of the wing until the stalling angle is reached.
- At that point, the downwash is and the pressure differential are greatly reduced, and a loss of lift result.
- Due to the loss of lift and increase in drag, the remaining lift is insufficient to support the aeroplane, and the wings stalls.

The relation between lift and angle of attack for a particular aerofoil can be shown on the following diagram:

- The curve is linear at the beginning to a certain point when it begins to fall off. Eventually, the lift force reaches a maximum and begins to decrease.
- The angle at which it does so is called the stalling angle of attack (or critical angle of attack), and the corresponding magnitude of lift reaches its maximum.
- A typical stalling angle is about 16 degrees.