What does a center of gravity (CG) that is too far aft indicate?

A center of gravity (CG) that is positioned too far aft indicates a tail heavy condition, which significantly affects the stability and control of the aircraft. When the CG is too far towards the tail, it can lead to decreased longitudinal stability, making the aircraft more sensitive to pitch changes and harder to control. This condition can cause the nose to rise, leading to potential stall situations during flight, as well as affecting the pilot's ability to perform maneuvers effectively.

In contrast, a forward CG typically enhances stability, while an aft CG can decrease the aircraft's ability to recover from certain flight attitudes. Thus, recognizing the implications of an aft CG is crucial for maintaining safe flight operations. The other options relate to performance characteristics that are not directly linked to an aft CG condition and may mislead in understanding the importance of maintaining an optimal center of gravity for safe and effective flight.