AFOQT Practice Test

What is the significance of Angle of Attack (AOA)?

1. It is the maximum weight the aircraft can carry

2. It governs the lift of the aircraft

3. It measures the angle for thrust adjustment

4. It is the angle between airflow and the wing chord

The correct answer is: It is the angle between airflow and the wing chord

The significance of the Angle of Attack (AOA) primarily lies in its definition and its importance in understanding lift and aerodynamic performance. The angle of attack is indeed the angle between the chord line of the wing and the direction of the oncoming airflow. This angle is crucial because it directly influences the lift generated by the aircraft. As the AOA increases, up to a certain critical point, the amount of lift produced by the wing also increases. Beyond this critical angle, however, the wing may stall, rapidly decreasing lift. Therefore, knowing the correct AOA is essential for pilots to maintain optimal control of the aircraft and prevent stalling during flight maneuvers. While the angle of attack can indirectly relate to factors such as aircraft weight, throttle settings, and thrust adjustments, its core significance resides in its relationship to lift and the aircraft's aerodynamic efficiency.