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The angle of attack (AOA) is an aerodynamic concept that describes the position of an aircraft's wing—or more generally, its lifting surface—in relation to the incoming airflow. Technically, it is the angle between the chord line of the wing and the direction of the oncoming airstream. The angle of attack is a fundamental parameter in flight aerodynamics, as it is one of the most critical factors determining the lift and drag forces acting on an aircraft. It is also directly related to the under