FAA Ground School Practice Test

The wing's effectiveness is influenced by:

1. Wind direction

2. The aspect ratio

3. CG position

4. Atmospheric pressure changes

The correct answer is: CG position

The effectiveness of a wing is significantly influenced by the center of gravity (CG) position. The CG is the point where the aircraft's weight is evenly distributed and affects the overall stability and control of the aircraft during flight. When the CG is positioned correctly, it allows the wings to generate lift most effectively. If the CG is too far forward or too far aft, it can lead to issues such as increased drag or difficulty in maintaining level flight, impacting the aircraft's performance and maneuverability. A slightly forward CG can enhance stability but might lead to poor performance in terms of climb rate, while an aft CG can make the aircraft more maneuverable but risks instability and potential loss of control if the CG moves beyond certain limits. Understanding the importance of CG position is essential for flight safety and optimizing wing effectiveness for various flight conditions.