What type of load primarily affects the moments when performing weight and balance calculations?

When performing weight and balance calculations, the primary consideration is the location of the load in the aircraft. This is important because the position of weight affects the moments about the aircraft's center of gravity.

The moment is calculated as the weight multiplied by its distance from a reference point, typically the center of gravity. If the load is positioned farther from the center of gravity, it exerts a greater lever arm effect, which influences the aircraft's balance and stability during flight.

The weight of passengers, fuel, and baggage contributes to the overall weight of the aircraft but does not individually affect the moments in the same way that their locations do. It is the specific placement of these loads that determines how they impact the aircraft's center of gravity and performance. Therefore, understanding how different locations of the load interact with the aircraft's design is crucial for ensuring safe operation.