Which statement best describes the outcome when more lift is required due to increased aircraft weight?

When more lift is required because of increased aircraft weight, the power requirements will increase. This is due to the fundamental relationship between lift, weight, and the thrust produced by the aircraft's engines.

As the weight of the aircraft increases, the wings must generate additional lift to maintain level flight. To achieve this increased lift, the aircraft must either increase its angle of attack or increase its airspeed, both of which generally demand more power from the engines. Specifically, increasing the angle of attack can increase drag, requiring additional thrust to overcome this drag while still gaining the necessary lift.

Additionally, if the aircraft maintains the same configuration (such as flap settings), the engines will need to produce more power to ascend or maintain altitude successfully under a heavier load. Thus, the connection between weight, lift, and power requirements is well established in aerodynamics, making it clear that increased aircraft weight directly correlates to increased power needs to ensure flight performance is met.