English to French Tech/Engineering Aerospace / Aviation / Space aéronautique (in a patent)

The present disclosure relates to aircraft propulsion systems, and to methods of
operating aircraft involving the management of fuels of different types, including detection of fuel properties and actions taken to improve aircraft performance based on the data acquired, and to methods of modifying aircraft so as to allow such methods to be implemented

Implementations of this aspect may therefore allow environmental benefits (e.g.
reduced or tailored contrail formation) and/or operational benefits (e.g. improved fuel burn efficiency) to be obtained based on knowledge of the fuel being burned.

a gas turbine engine (10, 44) arranged to burn a fuel so as to provide power to the aircraft (1);

an Auxiliary Power Unit – APU - comprising a gas turbine engine (44) arranged to burn
a fuel so as to provide power to the aircraft (1); and