When calculating weight and balance, if the index units are in pounds, what is true about the center of gravity?

The center of gravity (CG) is a crucial aspect of weight and balance calculations in aviation, as it affects the aircraft's stability and control. When the index units are expressed in pounds, the weight of the various aircraft components – including passengers, cargo, and fuel – can be summed to determine the CG's position.

By using the weights and their respective moment arms (the distances from a reference point, typically the leading edge of the wing or another defined location), one can apply the formula for calculating the CG. This calculation involves dividing the total moment by the total weight, thus yielding the position of the CG in relation to the aircraft’s reference point. Therefore, the capability to calculate the CG from the provided weights demonstrates a fundamental aspect of weight and balance procedures.

Understanding the specific placement of the CG is essential for maintaining aircraft control, but the only accurate statement related directly to the capability to calculate the CG from weights is that it can indeed be derived from the given information.

This foundational concept allows pilots and engineers to ensure aircraft is not only safely loaded, but also effectively operated within its design envelope, ensuring optimal performance during all phases of flight.