ANALYSIS OF THE MECHANISM OF SUDDEN CHANGES OF FLIGHT VISIBILITY
Tan Biguang （Flight Cullege of Civil Aviation of China）
A relation between the flight accident and the flight isibility is obtained after the investigation of the flight accidents of the civil aviation in China during the past 10 years．Some features and eauses of the poor visibility leading to flight accidents are analysed and the sudden changes of visibility during approach are discussed．A suggestion of avoiding this kind of flight accidents is put forward.
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