If the CG needs to be shifted to 80 inches by moving weight B, how many inches must weight B be moved?

• A. 10 inches left
• B. 20 inches right
• C. 15 inches right
• D. 10 inches right

Answer: (B)

To determine how many inches weight B must be moved to shift the center of gravity (CG) to 80 inches, it is essential to understand the role of the center of gravity in aircraft performance. The CG is the point where the weight of the aircraft is evenly distributed, and it significantly affects stability and control.

When aiming to shift the CG to a specific location, the relationship between the weight positions and the resulting CG position must be carefully evaluated. If weight B is initially positioned at a distance greater than 80 inches from the reference point, moving it to the right will decrease the distance of that weight from the CG, thereby allowing the CG to shift towards the desired position of 80 inches.

In this scenario, moving weight B 20 inches to the right provides the necessary adjustment to achieve the targeted CG position at 80 inches. This movement directly impacts the overall balance and weight distribution within the aircraft, which is crucial for maintaining safe and efficient flight operations.