Is a
Patent attributes
Patent Applicant
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Malcolm Hillel0
Peter Swann0
Andrew Martin Rolt0
Paul Fletcher0
Date of Patent
August 22, 2017
Patent Application Number
14644799
Date Filed
March 11, 2015
Patent Citations Received
Patent Primary Examiner
Patent 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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