Variable area fan nozzle with drive system health monitoring
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United States of America Patent
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Apr 19, 2016
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app pub date -
Dec 21, 2011
filing date -
Dec 21, 2011
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Abstract
A nacelle for a turbofan engine includes a variable area fan nozzle (VAFN) and a proximity sensor that is attached to a nacelle forward portion to sense the presence of the VAFN when stowed. The proximity sensor is not attached to the VAFN, thereby enabling the use of a proximity sensor such as linear variable displacement transformer having a relatively compact operational stroke.
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