Which statement about CG limits is true?

Which statement about CG limits is true?

• A. CG limits apply only during takeoff.
• B. CG limits apply to in-flight fuel management only.
• C. CG limits are intended to maintain safe handling, stall margins, and structural integrity across the entire envelope.
• D. CG limits apply only to landing.

Answer: (D)

Center of gravity limits are there to keep the airplane controllable and structurally safe no matter what phase of flight you’re in. They define a safe range for where the weight can be distributed so you have enough elevator authority, adequate stall margins, and the loads the structure was designed to handle across the whole flight envelope. That means the CG must stay within those limits from takeoff through climb, cruise, descent, and landing, even as fuel is burned and payload shifts. The statement that best captures this is the one that says CG limits are intended to maintain safe handling, stall margins, and structural integrity across the entire envelope. CG can move with fuel burn and passenger/baggage distribution, so restricting it to a single phase (takeoff, in-flight fuel management, or landing) would ignore how CG behavior affects stability and controllability throughout the flight. Maintaining the CG within limits at all times ensures you won’t encounter insufficient pitch control, excessive stall risk, or overstress on the airframe. In practice, staying within the limits means checking weight and balance before flight and monitoring CG during loading and fuel planning, since shifts can occur as fuel is consumed or loads change.

Center of gravity limits are there to keep the airplane controllable and structurally safe no matter what phase of flight you’re in. They define a safe range for where the weight can be distributed so you have enough elevator authority, adequate stall margins, and the loads the structure was designed to handle across the whole flight envelope. That means the CG must stay within those limits from takeoff through climb, cruise, descent, and landing, even as fuel is burned and payload shifts.

The statement that best captures this is the one that says CG limits are intended to maintain safe handling, stall margins, and structural integrity across the entire envelope. CG can move with fuel burn and passenger/baggage distribution, so restricting it to a single phase (takeoff, in-flight fuel management, or landing) would ignore how CG behavior affects stability and controllability throughout the flight. Maintaining the CG within limits at all times ensures you won’t encounter insufficient pitch control, excessive stall risk, or overstress on the airframe.

In practice, staying within the limits means checking weight and balance before flight and monitoring CG during loading and fuel planning, since shifts can occur as fuel is consumed or loads change.