Stall commencing at the root is preferred because
- it provides the pilot with a warning of complete loss of lift.
- it provides a clear aerodynamic warning of the approaching loss of aileron effectiveness.
- it will cause the aircraft to pitch nose up before the outer wing sections lose their lift.
Explanation
If the stall begins at the root, the inboard separation buffets the tailplane and gives a recognisable airframe warning while the ailerons, mounted outboard, are still in attached flow and remain effective. This warns of impending total lift loss without first robbing the pilot of roll control.
Stavros asking:
It’s wrong right?
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