You may notice a triangular wedge-shaped strip on the leading edge your aircraft, this is called a stall strip, its is quite ingenious. The purpose of this clever piece of engineering is to improve the predictability and controllability of the aircraft during stalls, resulting in stalls that are less likely to result in a spin, and thus safer stalls.

The stall strip works by initiating airflow separation on a controlled section of the wing at a predetermined angle of attack; stalling the wing root prior to the wing tips, while causing the stall at a slightly higher airspeed, doing so makes possible continued aileron control during scenarios such as one wing dropping more so than the other, while reducing the possibility of entering a spin.

It’s important to note, use of aileron control is not recommend during stalls or during stall recovery. Remember the ailerons deflect airflow in such a way that the angle of attack is increased on one wing, while decreased on the other, normally this results in roll movement of the aircraft, during a stall increasing angle of attack on a wing that is otherwise at, near, or already stalled, may inadvertently cause a spin, and should be avoided. Proper stall recovery requires use of the rudder, which is a control surface that is not stalled and therefore the correct recovery technique for responding to adverse yaw.