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Illusions - Natural Illusions
2010-03-18

Illusions - Natural Illusions

Rain
Rain gives the illusion of being higher than you actually are. Combined with haze, you will fly lower approaches during rain.
Visibility
Low visibility can cause the illusion that things are further away. Entering a fog during descent will give an illusion of pitching up.
Wind
An updraft can cause such vertical sensation as to cause the pilot to put the nose of the aircraft down. He senses a climb where the attitude of the aircraft has been level. Avoid the weather conditions that can cause illusions. Believe your instruments. Get an instrument rating.
Health
Illness, medicine, alcohol, fatigue, or hypoxia will make susceptibility to an illusion more likely. It takes very little to cause disorientation

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