Which flight aspect is most affected by high bank angles in the T-6?

High bank angles significantly impact aircraft control in the T-6 because they alter the distribution of lift and increase the load factor on the wings. When a pilot initiates a turn with a high bank angle, the aircraft experiences greater centripetal forces, which can lead to increased stall risk if not managed properly. As the bank angle increases, the stall speed also increases, requiring greater attention to airspeed management to maintain safe flight.

In addition, extreme bank angles can reduce the aircraft's responsiveness and may require more precise control inputs to maintain the desired flight path. The combination of increased load factors and reduced maneuverability highlights how critical it is for pilots to be aware of their bank angle during flight maneuvers, particularly in potentially dynamic situations or when executing aggressive turns.

While speed preservation, fuel efficiency, and climb performance can also be affected by bank angles, the most immediate and critical concern in terms of safety and handling is the aircraft's control, making it the primary aspect impacted by high bank angles.