stalling angle

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stalling angle

n
(Aeronautics) the angle between the chord line of an aerofoil and the undisturbed relative airflow at which stalling occurs. Also called: stall angle or critical angle
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Since ice buildup on the wing lowers the stall angle of attack, the stall-warning sensor might not provide warning in icing conditions."
The maximum Cl for a certain AoA applied for an airfoil is known as stall angle. The common stall angle is between 10 to 15 degrees [10].
For example, the decreased stall angle of attack due to icing is commonly used to restrict the incidence angle within its safe envelope.
The computed values of lift coefficient agree well with the experimental results up to the stall angle. At the stall angle, the experimental value of lift coefficient drops abruptly, while the computed lift coefficient continues to increase.
The camber (first digit) increases the stall angle, while the camber position (second digit) decreases it.
The AoA indicator has been promoted as a tool for avoiding unexpected stalls since, unlike airspeed indicators, they reflect the angle-of-attack situation relative to stall angle at existing G loading.
It cannot detect a condition where one wing's AoA is greater than the other, and has no better than a 50-percent chance of warning the pilot that just one wing is nearing a stall angle of attack.
If we were to guess here, based on our reading of the accident reports, we would say that as with the moose stalls, the problem isn't airspeed itself, but bank angle and a weak grasp of wing loading versus stall angle of attack.
The main performance killer is drag and the effect icing has on the stall angle of attack and, indirectly, stall speed.