What does the term "stall" mean in aviation?

The term "stall" in aviation specifically refers to a loss of lift that occurs when an aircraft exceeds its critical angle of attack. At this critical angle, the airflow over the wing becomes turbulent and unable to sustain the lift necessary for flight. When the wing reaches this point, the smooth flow of air is disrupted, resulting in a significant reduction in lift and potentially causing the aircraft to begin descending rapidly or enter a spin if corrective actions are not taken.

Understanding the critical angle of attack is crucial for pilots, as it varies among different aircraft designs and flight conditions. Being aware of stall characteristics is essential in safely operating an aircraft, especially during maneuvers that involve steep turns, slow flight, or rapid climbs. Proper recognition of a stall and the appropriate recovery techniques are vital components of pilot training.