Drone Pilot Practice Exam

The angle of attack is the angle between which two components?

1. Wing and Fuselage

2. Relative Wind and Thrust

3. Relative Wind and Chord Line

4. Wing and Ground

The correct answer is: Relative Wind and Chord Line

The angle of attack is defined as the angle between the chord line of an airfoil (such as a wing) and the direction of the relative wind (the airflow that is effectively moving past the wing as the aircraft flies). Understanding this concept is crucial for pilots, as the angle of attack directly influences the lift generated by the wing and can significantly affect the aircraft's performance. When the angle of attack increases, the airflow can begin to separate from the wing's upper surface, which can lead to a stall if the angle continues to increase to a critical level. Therefore, being aware of how the angle of attack interacts with the relative wind helps pilots maintain optimal flight conditions and safety. The other options do not accurately describe the angle of attack. For instance, the angle between the wing and fuselage does not directly pertain to lift generation and aerodynamic efficiency in the same way as the angle of attack does. Similarly, thrust is not considered when determining the angle of attack, and the relationship between the wing and the ground is not relevant to this specific aerodynamic concept.