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30 U.S. CIVIL AERONAUTICS AUTHORITY

moment, or overbanking tendency, when one wing is near the ground and the other up in the air as in a steep bank close to the ground.  This friction effect is also true in gusts encountered in such a position, which increases the severity of their action.
8.  Due to the optical illusion mentioned previously, after completing the turn the inexpert or poorly trained pilot will be fooled into thinking his air speed has increased, and very frequently will try to force the ship to climb more rapidly.  This results in a complete stall with such rapidity that the pilot does not sense its approach due to the lingering effects of the illusion.  Complete stalls at low altitudes invariably end in a major disaster.