When an aircraft leaves ground effect, what flight condition is expected?

When an aircraft leaves ground effect, an increase in induced drag is indeed expected, which necessitates a higher angle of attack to maintain the same lift. Ground effect occurs when an aircraft is close to the ground, typically within one wingspan's distance. In this state, the ground interferes with the wing's air circulation patterns, reducing induced drag significantly.

Once the aircraft climbs out of this effect, it experiences a normal increase in induced drag, which is a result of the changing flow patterns around the wing when it is no longer benefiting from the ground’s influence. As a result, to maintain or increase lift, the pilot must adjust the angle of attack upward. This adjustment compensates for the increased drag, allowing the aircraft to achieve the necessary lift to maintain altitude or continue climbing.

The other options present scenarios that do not accurately describe the conditions experienced as an aircraft transitions out of ground effect. For instance, a decrease in parasite drag would not occur; instead, residual effects of ground proximity typically reduce induced drag. Dynamic stability may not necessarily improve just by leaving ground effect, as stability is more related to aircraft design and loading rather than just the proximity to the ground. Lastly, lift would not be reduced immediately on leaving ground effect unless the pilot does