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65.18 Turbine Engine Fuel Systems

65.18.2 Describe the distinguishing features of aviation turbine fuel (AVTUR/Jet A1).

65.18.4 Compare and differentiate between AVGAS and turbine engine fuel and describe methods of reducing the likelihood of fuelling with the wrong type.

65.18.6 State the differences between the various types of turbine engine fuel and identify their common usage names.

65.18.8 Describe the function of the following turbine engine fuel system components:

(a) fuel control unit (hydro pneumatic, hydro mechanical and electrohydro mechanical)

(b) FADEC

The Full Authority Digital Engine Control (FADEC) is a digital computer system that manages all aspects of an aircraft engine's operation.

It receives inputs from various sensors, such as engine speed, temperature, and pressure, and uses this data to control fuel flow, variable geometry, and other engine parameters to optimise performance and efficiency.