Why is determining the empty weight CG important?

Determining the empty weight center of gravity (CG) is crucial because it directly affects aircraft performance and stability. The CG is the point where the weight of the aircraft is balanced, and its location influences how the aircraft behaves in flight. If the CG is too far forward or too far aft, it can lead to undesirable flight characteristics. For instance, a forward CG can cause excessive nose-down tendencies and increased control inputs needed for stable flight, while an aft CG may result in instability and difficulty in recovering from certain flight maneuvers.

Additionally, understanding the empty weight CG helps ensure that any subsequent loading of passengers, cargo, and fuel is done in such a way that the aircraft remains within its safe operational limits. This knowledge is essential for making the necessary adjustments to maintain the desired performance and handling qualities of the aircraft throughout its range of operation and during various phases of flight. Proper CG management ensures that the aircraft operates safely and efficiently, minimizing the risk of accidents related to weight and balance issues.