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Would a disconnected surface, especially aileron, deflect upwards as you slow down due to increased alpha? I figure out it is more likely to deflect upwards as you increase your airspeed, thus having more airflow pressure below it and pushing it upwards.

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2 Answers 2

In the case of deflection of a wing or in this case ailerons, whereas it is needed to create a disconnection between the aileron so the aircraft before it is able to turn. The disconncection would cause the air to deflect upwards over the surface of the aileron, as you slow down due to increased angle of attack. It is more likely to deflect upwards as the airspeed is increased, though having more airflow pressure below the wing would push it upwards. This is a well known military maneuver called Pugachev's Cobra. But in commercial aviation you do not exploid such knowledge due to the safty restrictions.

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Since the ailerons are disconnected, they would trail at the same angle as a tuft of yarn taped to their trailing edge. That would, I assume, be an angle that minimizes drag.

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