What is an undesirable flight characteristic of an airplane with a center of gravity located aft of the limit?

An airplane with a center of gravity located aft of the limit exhibits significant challenges, particularly in recovering from a stalled condition. When the center of gravity is too far aft, the aircraft can become more difficult to control, especially in critical situations like stalling.

In a stall, the airplane may have a tendency to pitch up excessively, leading to a greater angle of attack and delaying recovery. This can result in needing more altitude and a longer distance to recover safely, as the control effectiveness, particularly of the elevator, can be diminished. The airplane may also have a tendency to enter a spin, complicating recovery efforts. Thus, it becomes clear that having an aft CG affects stability and control, especially during stalls, making recovery a challenging task.

While other possibilities like improved fuel efficiency or enhanced maneuverability may seem appealing, they do not pose the immediate and serious operational risks associated with an aft center of gravity. Additionally, increased stall speed is not a direct characteristic of the aft CG, as it primarily impacts the aircraft's handling and recovery capabilities rather than its stall speed directly.