Regarding an aeroplane leaving ground effect, which statements are correct?

When considering the effects of ground proximity on an airplane, particularly during takeoff and initial climb, understanding ground effect is crucial. Ground effect occurs when an aircraft is close to the ground, resulting in an increase in lift and a decrease in induced drag due to the interference with the airflow around the wings. This phenomenon typically extends to about one wingspan height above the ground.

In this context, if the first statement indicates that leaving ground effect leads to a decrease in lift, that would be correct, as the benefits of ground effect diminish, and the aircraft must rely solely on its wings generating sufficient lift. As the aircraft transitions into free air, it may experience a noticeable difference in how it behaves, which can require adjustments in pitch and power settings.

If the second statement describes the potential need for the pilot to re-trim the aircraft to maintain level flight after leaving ground effect, that aligns with the operational realities pilots face upon exiting this favorable zone. The change in lift characteristics necessitates careful management of the aircraft's control surfaces to ensure continued stability and performance.

Therefore, the correct conclusion is that the first statement about lift is correct and the second statement regarding re-trimming is incorrect, leading to the conclusion that the option indicating the first statement is correct and