What does the term "Relax" refer to in stall recovery procedures?

The term "Relax" in stall recovery procedures specifically refers to reducing the angle of attack. When an aircraft is nearing or experiencing a stall, one key factor contributing to the stall is the excess angle of attack relative to the critical angle at which lift begins to diminish. By relaxing the control inputs, particularly the back pressure on the control yoke or stick, the pilot effectively reduces the angle of attack, which allows the wings to regain lift and thus helps recover from the stall condition.

This action is essential because a high angle of attack can lead to further loss of lift and potentially worsen the stall. Reducing the angle of attack helps restore the aircraft's aerodynamic efficiency, enabling it to recover safely and effectively.