Name one of the main characteristics of icing.
A. It accumulates only on the leading edge of the bearing surfaces.
B. It accumulates on an aircraft only when the temperature is below minus 10 degrees centigrade.
C. It occurs when an aircraft is passing through a dense cloud or freezing rain zone.
D. It does not affect the performance of an aircraft since it is very thin.
Answer is B. It accumulates on an aircraft only when the temperature is below minus 10 degrees centigrade.
Ice accumulates on every exposed frontal surface of the airplane—not just on the wings, propeller, and windshield, but also on the antennas, vents, intakes, and cowlings. It builds in flight where no heat or boots can reach it. It can cause antennas to vibrate so severely that they break. In moderate to severe conditions,a light aircraft can become so iced up that continued flight is impossible. The airplane may stall at much higher speeds and lower angles of attack than normal. It can roll or pitch uncontrollably,and recovery might be impossible.Ice can also cause engine stoppage by either icing up the carburetor or, in the case of a fuel-injected engine, blocking the engine’s air source.
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