What factors can affect the CG location of an aircraft?

The correct choice highlights the various factors that influence the center of gravity (CG) location of an aircraft. Understanding these factors is crucial for ensuring safe operations and optimal performance of the aircraft.

The size and position of loads directly impact the CG because the distribution of weight in the cargo area or cabin can shift the CG forward or aft, depending on how and where those loads are placed. Similarly, the amount of fuel onboard also plays a significant role, as fuel is typically located in specific tanks that can change the CG as fuel is consumed or added.

Modifications made to the aircraft, such as adding or removing equipment, changing the configuration, or altering the structure, can also shift the CG. Each of these modifications can move weight around in ways that significantly affect the aircraft’s balance and handling characteristics.

In contrast, relying solely on the size of the aircraft or flight conditions does not account for the dynamic nature of weight distribution. Additionally, the type of aircraft might imply specific design parameters, but it does not encompass the practical implications of loading and modifications that can affect CG. Thus, the comprehensive perspective offered by the correct choice is essential for understanding how to manage and calculate the CG for safe flight operations.