The present disclosure relates to optimisation of a cold nozzle, or bypass exit area, for a gas turbine engine, in particular for a geared turbofan gas turbine engine. Example embodiments include a method (70) of optimising a geared turbofan gas turbine engine (10) for an aircraft, the method comprising: determining (71) expected service parameters for the aircraft, the expected service parameters including an expected range of travel for the aircraft; selecting components for the geared turbofan gas turbine engine to define (73) a first smaller cold nozzle area if the range of travel is within a first smaller range and to define (74) a second larger cold nozzle area if the range of travel is within a second larger range.
Cold nozzle optimisation
2018-12-05
Patent
Electronic Resource
English
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