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by mgsouth
2579 days ago
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[Disclaimer: not an aeronautical enginner or pilot.] Unfortunately, no. Stalling is a function of the wing's _angle_ relative to the flow of air, not of speed. If the angle is too sharp the air can't follow the curve of the wing. The critical angle is (pretty much) independent of speed. For example: if you stick your hand out of the window of a car traveling at 60 MPH, and hold it almost flat to the wind (say 80 deg.), then the air can't follow down the back of your hand. All of the "push" is backwards, and there's no push up. If you hold it at 30 deg. then the air flows around your hand, which deflects the air down and your hand up, very strongly. Even if you're only traveling at 5 MPH, if you hold your hand at 30 deg. the air will flow around your hand and deflect it upward; it will just be a very weak effect. The angle between the wing and the air flow is what is called the "angle of attack", and what the AoA sensors measure. The only other instrument that comes close is the Attitude gauge (the globe thing). However, it measures the plane's angle relative to the horizon, and air moving relative to the plane usually isn't parallel to the ground in conditions where the AoA matters. Wikipedia article, with much detail, pictures, etc.: https://en.m.wikipedia.org/wiki/Angle_of_attack |
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