A skid is an aerodynamic condition that occurs during a turn when the tail of an airplane moves away from the center of the turn. In simpler terms, it means the tail follows a path outside of where the nose is going. To keep a plane flying smoothly in a turn, pilots need to use a mix of aileron, rudder, and elevator controls. If too much rudder is applied, the tail will be pushed out of alignment with the nose, causing a skid.
When an aircraft approaches its stall speed, a skid can lead to the inside wing stalling first. This can tighten the turn and possibly cause a spin. In flying, this situation is often called a ‘final turn stall.’ It happens when a pilot miscalculates the turn from base leg to final approach and might use extra rudder to avoid overshooting the runway’s centerline. It’s crucial for pilots to recognize and manage these conditions to ensure safety.