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Home > Exam Questions > ATPL - Airline Transport Pilot Licence > Aircraft General Knowledge - Instrumentation > Which two quantities are commonly used, depending on engine design or control mode, as the thrust-setting reference for a turbofan engine?

199 - ATPL Question Bank in English - Which two quantities are commonly used, depending on engine design or control mode, as the thrust-setting reference for a turbofan engine?

Question 199 - Aircraft General Knowledge - Instrumentation - ATPL - Airline Transport Pilot Licence

Fan rotation speed (or N1) or the EPR (Engine Pressure Ratio).

Fan rotation speed (or N1) or the total pressure at the low pressure turbine outlet.

Fan rotation speed (or N1) or the total pressure at the high pressure compressor outlet.

High pressure turbine rotation speed or the EPR (Engine Pressure Ratio).

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