What happens to the angle of attack during the transition from straight-and-level flight to a climb?

During the transition from straight-and-level flight to a climb, the angle of attack is momentarily increased. This occurs because, to initiate the climb, the pilot must raise the nose of the aircraft, which requires increasing the angle between the wing's chord line and the relative wind.

As the aircraft's nose is elevated, the increased angle of attack allows the wings to generate more lift to counteract the weight of the aircraft in a vertical direction. However, it's important to note that this increased angle of attack must be managed carefully to avoid reaching the critical angle of attack, which could lead to a stall. Therefore, during the climb, while the angle of attack initially increases to enable the climb, maintaining an appropriate angle is crucial for sustained flight performance and safety.