What factors would affect the calculation of CG change during weight shifting?

The calculation of center of gravity (CG) change during weight shifting is influenced by several factors, specifically the weight shifted, the distance shifted, and the total weight of the aircraft.

When a weight is shifted within the aircraft, the amount of CG movement is not determined solely by the weight itself. The distance that this weight is moved also plays a crucial role; shifting a certain weight further away from the center of the aircraft will have a more significant impact on the CG than moving it a shorter distance. For instance, if you shift a piece of cargo from a position close to the CG to a position at the extreme end of the aircraft, it will have a more exaggerated effect on the CG than if the same weight was merely shifted a few inches.

In addition, the total weight of the aircraft affects how critical the CG position is. As weight increases or decreases, the margin for error in CG positioning also changes. Therefore, both the initial total weight and any shifts in weight affect how the CG will change during weight movement.

Considering all these elements, option B accurately encompasses the comprehensive understanding needed to calculate changes in CG effectively, making it the correct answer.