Center of gravity limits are defined as forward and aft points within which the CG must be located during flight. These limits are indicated on pertinent airplane specifications. Which option best expresses this definition?

• A. The forward and aft limits without reference to actual values.
• B. The weight limits of the aircraft.
• C. The engine power limits.
• D. The forward and aft CG limits indicated on airplane specifications.

Answer: (D)

Center of gravity limits define the forward and aft positions where the aircraft’s CG must lie during flight, and these limits are published in the airplane’s specifications. Keeping the CG within that envelope is essential for safe handling, providing adequate elevator authority for rotation and pitching maneuvers, and ensuring stable, predictable stall characteristics. The option that best expresses this is that the forward and aft CG limits are indicated on airplane specifications. These values appear in the aircraft’s data sheets or POH as actual numbers you reference with weight and balance calculations. They’re not the same as gross weight limits or engine power limits, which is why those other choices don’t fit. A choice that omits specific values would miss the practical meaning of the CG envelope.