At what speed is the stick shaker activated?

• A. 5-10 knots above stall speed
• B. 10-15 knots above stall speed
• C. 15-20 knots above stall speed
• D. 20-25 knots above stall speed

Answer: (A)

The activation of the stick shaker is designed to provide an early warning to the pilot that the aircraft is approaching an aerodynamic stall condition. Specifically, the stick shaker is activated at a speed range of 5-10 knots above the stall speed. This threshold allows pilots to receive timely feedback about their current flight state, prompting them to take corrective action to prevent an actual stall from occurring.

The proximity of the activation threshold to the stall speed ensures that pilots have an adequate warning before entering a critical flight regime where loss of control could become imminent. By triggering the shaker at this range, the system effectively enhances flight safety and contributes to better aerodynamic awareness for the crew.