What are common signs of an impending stall?

The presence of aural warnings, vibrations, and control heaviness are classic indicators of an impending stall. Aural warnings serve as audible alerts that the aircraft is approaching a stall condition, typically signaled by a warning horn or alert system designed to catch the pilot's attention. Vibrations can be felt in the controls, indicating airflow separation over the wings, which suggests that the aircraft is nearing the critical angle of attack. Control heaviness occurs as the aircraft approaches stall, where pilots may notice increased difficulty in maneuvering the aircraft due to reduced aerodynamic lift and increased drag.

Recognizing these signs is crucial for pilots to take corrective action before an actual stall occurs, thus maintaining aircraft control and safety. Understanding these indicators helps pilots develop a keen awareness of their aircraft's performance and the dynamics of flight, which is essential for effective flying.