Flight Control And Cable System

May 5th, 2015
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In the early day, Control cable is the only way to control flight control surfaces. Multiple strand control cables are simple, strong and reliable. Cable has several advantages over other types of linkage.

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flight control and cable systemFlight Control And Cable SystemsCable arrangement and strandsIn the early day, Control cable is the only way to control flight control surfaces. Multiple strand control cables are simple, strong and reliable. Cable has several advantages over other types of linkage. It is strong and light in weight, and its flexibility makes it easy to route. In addition to primary flight controls, cable is used on engine controls emergency landing gear extension controls, trim tab system and various other applications. One disadvantage of a cable system for control movement relates to thermal contraction. As an aircraft climb to a high attitude, its temperature drops and its structure contracts. Furthermore, the aluminium structures contracts much more than the small mass of steel in a control cable, and as a result, cable lose their tension. Large aircraft have a rather complex automatic tensioning system to keep control cable tension relatively constant as the aircraft contracts and expands. However, small aircraft must have their cable tension adjusted as a compromise so they are not too tight when the airplane is neither hot nor too loose when it is cold. Aircraft control cable is available in both corrosion resistant steel and carbon steel. The corrosion resistant steel is somewhat more expensive and has a slightly lower strength, but its longer life makes it the better of the two cables for use where corrosion may be a problem, such as in agricultu

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