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 Aircraft Ice and Rain Protection

Aircraft Ice & Rain Protection Overall rating: ★★★★☆ 4.4 based on 415 reviews
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FAA Airframe Handbook Chapiter 15

Aviation Maintenance Technician Handbook (Volume 2)

 

afoullous.com FAA airframe maintenance aviation technician Ch15

 

 Aircraft Ice and Rain Protection

The two types of ice encountered during flight are clear and Ice and Rain Protection rime. Clear ice forms when the remaining liquid portion of the water drop flows out over the aircraft surface, gradually freezing as a smooth sheet of solid ice. Formation occurs Ice and Rain Protection when droplets are large, such as in rain or in cumuliform clouds. Clear ice is hard, heavy, and tenacious.

Its removal Ice and Rain Protection by deicing equipment is especially difficult.
Rime ice forms when water drops are small, such as those in stratified clouds or light drizzle. The liquid portion remaining after initial impact freezes rapidly before the drop has time to spread over the aircraft surface. The small frozen droplets
trap air giving the ice a white appearance. Rime ice is lighter in weight than clear ice and its weight is of little significance.
However, its irregular shape and rough surface decrease the effectiveness of the aerodynamic efficiency of airfoils, Ice and Rain Protection reducing lift and increasing drag. Rime ice is brittle and more easily removed than clear ice.
Mixed clear and rime icing can form rapidly when water drops vary in size or when liquid drops intermingle with snow or ice particles. Ice particles become imbedded in clear ice, building a very rough accumulation sometimes in Ice and Rain Protection a mushroom shape on leading edges. Ice may be expected to form whenever there is visible moisture in the air and temperature is near or below freezing.

An exception is carburetor icing, which can occur during warm weather with Ice and Rain Protection no visible moisture present.


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Aircraft Ice and Rain Protection
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Aircraft Ice and Rain Protection
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Aircraft Ice and Rain Protection FAA Airframe Handbook Chapiter 15 The two types of ice encountered during flight are clear and Ice and Rain Protection rime. Clear ice forms when the remaining liquid portion of the water drop flows out over the aircraft surface, gradually freezing as a smooth sheet of solid ice.
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