How does an increase in weight affect Va?

The choice that states Va increases with an increase in weight is grounded in the principles of aircraft performance and handling characteristics. Va, or maneuvering speed, is defined as the maximum speed at which the aircraft can be safely maneuvered without risking structural damage during sudden maneuvers.

When the weight of an aircraft increases, the stall speed also increases, as it requires a greater angle of attack to maintain level flight. Consequently, this increase in stall speed raises the maneuvering speed (Va) because Va is a specific multiple of the stall speed. Therefore, for an aircraft at a heavier weight, it is crucial to maintain a higher speed to remain within the safe operational envelope during maneuvers, making Va higher.

This relationship emphasizes the importance of understanding how weight affects flight dynamics, particularly in terms of the aerodynamic limits of the aircraft. Hence, in practical terms, as the aircraft's weight goes up, the pilot must be aware that Va is also elevated to ensure safe maneuverability.