What happens to the CG if weight is added toward the tail of the aircraft?

When weight is added toward the tail of the aircraft, the center of gravity (CG) shifts backwards. This is because the position of the CG is determined by the distribution of weight within the aircraft. By placing additional weight at the tail, you are effectively increasing the moment created about the aircraft's reference point, which results in a rearward shift of the CG.

In aviation, maintaining the correct CG is critical for the aircraft's stability and controllability. A CG that is too far aft can lead to decreased stability, making the aircraft more difficult to control and potentially leading to unsafe flight conditions.

This concept is fundamental to understanding weight and balance calculations, which ensure that an aircraft operates safely within its designed parameters.