During a turn, what scenario affects the stall speed increase significantly?

In a turn, the stall speed increases due to the bank angle used by the aircraft. When you adopt a bank angle of 45 degrees, the load factor on the wings increases significantly, which directly impacts the stall speed. At this angle, the load factor effectively becomes approximately 1.4 times that of straight and level flight. This increase in load factor translates into a higher stall speed because the aircraft must generate more lift to counteract the increased weight that results from this higher load factor.

It is crucial to recognize that as the angle of bank increases, more lift is required to maintain altitude. This required lift can lead to an increase in stall speed because the aircraft needs to maintain a higher airspeed to achieve that lift. In practical terms, this means that while flying in a turn, especially at sharper angles such as 45 degrees, pilots must be more aware of how close they are to the stall speed because it will be higher than in straight and level flight. This aspect is vital for ensuring safe flight operations during maneuvers that involve significant banking.