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2.4.2.

Described the function of the power turbine governor by stating the engine performance parameters sensed and its connection to fuel control.

Twist Grip Must be full open and Nf gear train up to speed. Nf gear train drives fly weights which varies compressor discharge air pressure which is set to the FCU and used to meter fuel.

2.4.3.

State what components control the power turbine governor and gas producer fuel control.

Twist Grip Position, compressor Discharge Pressure, Ng speed, Nf speed, Nf Governor RPM Beep switch which controls the linear actuator which controls the Nf governor.

2.4.4.

State how the twist grip functions.

3 positions: Fuel Off, Flight Idle and Fuel Off

2.4.5.

Described the droop compensation system by identifying the cockpit controls, engine controls, and its effect on power output.

Collective position controls Nf governor throttle lever position which changes flyweight tension which changes compressor air pressure signal which controls the fuel control unit.  This allows the fuel control unit to anticipate power changes based on collective position.

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