What is a potential consequence of having the center of gravity (CG) outside the limits of the aft CG?

What is a potential consequence of having the center of gravity (CG) outside the limits of the aft CG?

• A. The aircraft may become aerodynamically unstable
• B. Fuel efficiency may increase
• C. The aircraft's range might improve
• D. Passenger comfort is enhanced

Answer: (A)

When the center of gravity (CG) is outside the limits of the aft CG, one significant potential consequence is that the aircraft may become aerodynamically unstable. This situation can lead to a higher likelihood of pitch-up tendencies during flight, particularly in certain configurations like when power is applied for takeoff or landing. An aft CG can cause the aircraft to lose effective control and become difficult to manage, particularly at low speeds, where stability is key for safe operation. The design parameters of an aircraft are carefully calculated to ensure that the CG remains within an optimal range. Deviating towards an aft position can alter the aerodynamic characteristics adversely, potentially leading to a loss of control or difficulty in recovering from certain flight situations. The other choices may seem beneficial, but they do not directly relate to the immediate implications of CG stability and control. Thus, maintaining the CG within limits is crucial for safe and efficient flight.

When the center of gravity (CG) is outside the limits of the aft CG, one significant potential consequence is that the aircraft may become aerodynamically unstable. This situation can lead to a higher likelihood of pitch-up tendencies during flight, particularly in certain configurations like when power is applied for takeoff or landing. An aft CG can cause the aircraft to lose effective control and become difficult to manage, particularly at low speeds, where stability is key for safe operation.

The design parameters of an aircraft are carefully calculated to ensure that the CG remains within an optimal range. Deviating towards an aft position can alter the aerodynamic characteristics adversely, potentially leading to a loss of control or difficulty in recovering from certain flight situations. The other choices may seem beneficial, but they do not directly relate to the immediate implications of CG stability and control. Thus, maintaining the CG within limits is crucial for safe and efficient flight.