How can the 'total moment' of an aircraft be determined?

The total moment of an aircraft is determined by multiplying the weight of the aircraft by the distance from its Center of Gravity (CG) to a specified datum. This method provides an accurate representation of how the aircraft's weight is distributed concerning its CG, which is critical for ensuring proper balance and stability during flight.

Understanding the total moment is essential for aircraft weight and balance calculations. It is used to assess whether the aircraft is within its operational limits, which includes evaluating how weight shifts during flight can affect handling characteristics. By using the formula of weight times CG distance, you arrive at a significant value that influences how the aircraft behaves in the air.

The other options either misinterpret the methodology required to calculate the total moment or do not directly provide the required information. Some options might suggest mixing various weights or moments in ways that don't correctly address the question of total moment computation. The specific calculation for total moment—weight multiplied by its distance from the datum—is a foundational principle in aviation that ensures safe operation of the aircraft.