When should the angle of attack be adjusted during a turn to maintain altitude with increased speed?

Maintaining altitude during a turn while experiencing increased speed requires an understanding of how angle of attack impacts lift. When the speed of the aircraft increases, the lift generated by the wings also increases for a given angle of attack. To maintain level flight, it's necessary to reduce the angle of attack, thereby balancing lift with the weight of the aircraft.

If the angle of attack is not decreased in this situation, the aircraft may begin to climb, as the increased speed could provide excess lift. This could lead to a stall if the angle of attack continues to increase beyond the critical threshold. Adjusting the angle of attack downwards ensures that you can maintain altitude without risking an uncontrolled ascent or a potential stall.

Keeping the angle of attack the same or increasing it would not be appropriate when trying to maintain altitude after an increase in speed, as those actions would disrupt the delicate balance of lift and weight necessary for level flight. Adjusting based on aircraft weight might be relevant in different contexts, but in this specific scenario, the underlying principle related to speed and angle of attack is the crucial factor to focus on.