The stall angle of attack remains constant regardless of weight, dynamic pressure, bank angle, or pitch attitude.

The stall angle of attack remains constant regardless of weight, dynamic pressure, bank angle, or pitch attitude.

• A. True
• B. False
• C. Not sure
• D. Not applicable

Answer: (A)

Stall is triggered when the wing reaches its critical angle of attack, the angle where lift starts to drop as the flow separates. That critical angle of attack is a property of the wing itself (its airfoil and config) and stays essentially the same regardless of weight, bank angle, or pitch attitude. What changes with weight or bank is the airspeed needed to reach enough lift to stall. A heavier airplane or a banked turn creates higher load factors, so you must fly faster to generate the same lift, raising the stall speed. Pitch attitude mainly changes the flight path, not the angle of attack at which the wing stalls. Dynamic pressure (or airspeed) affects how quickly you reach that angle, but not the angle itself at the onset of stall. So the statement is true.

Stall is triggered when the wing reaches its critical angle of attack, the angle where lift starts to drop as the flow separates. That critical angle of attack is a property of the wing itself (its airfoil and config) and stays essentially the same regardless of weight, bank angle, or pitch attitude. What changes with weight or bank is the airspeed needed to reach enough lift to stall. A heavier airplane or a banked turn creates higher load factors, so you must fly faster to generate the same lift, raising the stall speed. Pitch attitude mainly changes the flight path, not the angle of attack at which the wing stalls. Dynamic pressure (or airspeed) affects how quickly you reach that angle, but not the angle itself at the onset of stall. So the statement is true.