Bank angle refers to the angle at which an aircraft is tilted relative to the horizontal plane during a turn. It is a crucial aspect of flight dynamics, as a proper bank angle helps maintain lift and control while maneuvering. Pilots adjust the bank angle to achieve the desired turn radius and rate of turn, ensuring safe and efficient navigation. In aviation, the bank angle is typically measured in degrees. A standard bank angle for a coordinated turn is around 15 to 30 degrees, depending on the aircraft type and flight conditions. Excessive bank angles can lead to increased stall risk and loss of control, making it essential for pilots to monitor and manage this parameter effectively.