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Near-IR Detection Aids Airplane Deicing

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Brent D. Johnson, Senior News Editor

One of the greatest hazards to aviation is ice buildup on the control surfaces of an aircraft. If the ice is in front of an engine, it can be ingested during takeoff, causing a flameout. Ice also changes the aircraft's handling characteristics. Near-infrared photodetector arrays are key elements of an aircraft ice-detection system. The state of the art in ice detection is not very technical. MD-80s, 737s and smaller planes undergo tactile testing -- ground crews actually touch the aircraft. Larger aircraft are inspected visually, with crews using poles to poke and prod some...Read full article

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    Published: July 2001
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