Aircraft vapour trail control system
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United States of America Patent
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Aug 22, 2017
Issued Date -
Oct 8, 2015
app pub date -
Mar 11, 2015
filing date -
Apr 2, 2014
priority date (Note) -
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Abstract
The invention concerns an aircraft propulsion control system in which a gas turbine engine has an actuable flow opening for control of flow to or from a portion of the engine. One or more sensor is arranged to sense a condition indicative of vapor trail formation by the exhaust flow from the engine. A controller is arranged to control actuation of the flow opening so as to reduce the efficiency of the engine upon sensing of said condition by the one or more sensor. In one example, the flow opening is a variable area fan nozzle.
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