Eurocopter AS 350 83 Flight Manual page 249

COMPLEMENTARY FLIGHT MANUAL
.
-Fuel control
The fuel control function is perforned by the FADEC computer according
to the fllll-authority microprocessor-type digital electronic technique.
The free turbine speed is governed at a value which is related to the
governor speed (Ng) and the collective pitch (antictpator).
The main functions of the fuel control system are as follows:
.AutCHnatic engine starting and acceleration from idling speed up to the
speed necessary for flight.
.AutCHnatic control of free turbine and gas generator rotational speeds
to maintain a rotor rotational speed corresponding to the selected
. value, whatever the changes in the aerodynamic loads applied to the
rotor (rapid or slow loading or unloading).
-.Engine speed control to keep engine speed within permissible
operating ranges and in particular as regards speed limitations.
.Rapid engine acceleration without hunting and rapid deceleration
without blowout.
.In-flight restarting.
.Engine shutdown.
The FADEC c~uter performs the engine shutdown function and also
performs a the maintenance aid function which is available on the
VEMD.
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35083 7.4 .
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