What effect does an aft CG have on spin recovery?

An aft center of gravity (CG) significantly impacts the handling characteristics of an aircraft, particularly during spin recovery. When the CG is located further aft than the manufacturer’s recommended limits, it can result in a condition known as "pitch sensitivity." This sensitivity makes the aircraft less stable in yaw and pitch, which directly affects its ability to recover from a spin.

In a spin, the aircraft is already in an uncoordinated state where one wing is stalled and the other is generating more lift. An aft CG exacerbates the situation by enhancing the stall characteristics and reducing the effectiveness of control inputs needed for recovery. The aircraft can become so unstable that achieving the necessary control for recovery may become extremely difficult or, in some cases, impossible. This characteristic is especially crucial for flight instructors to understand, as it influences aircraft performance and safety.

The other choices do not align with the realities of aircraft control dynamics. For instance, recovery from a spin is not easier with an aft CG; it also cannot be said that there is no effect on recovery, nor does an aft CG decrease the spin rate. Understanding the effects of CG on spin recovery is essential for maintaining flight safety and ensuring effective training practices.