Extra EA 400 - Engine Instruments; Gas Producer Turbine - Generator (N 1 )

Section 7 Pilot’s Operating Handbook
Description of Airplane and Systems EXTRA 500
7.14.d Engine Instruments
The following engine instruments, providing pilots with engine
operating indications, are installed on the left side of instrument
main panel in pilot’s field of view (see
Figure 7-11).
1 Torque indicator, which indicates engine torque in percent (%).
2 Propeller speed (power turbine N
2
) indicator, which indicates
propeller speed in revolutions per minute (rpm).
3 TOT indicator, which indicates turbine outlet temperature
measured in degrees centigrade (°C).
4 Gas generator (gas producer N
1
) indicator, indicates gas
generator rotation speed expressed in percent (%).
5 Oil temperature indicator, which indicates engine oil
temperature in degrees centigrade (°C).
6 Oil pressure indicator indicates engine oil pressure in pounds
per square inch (psi).
Figure 7-11
Engine Instruments
7.14.e Gas Producer Turbine – Generator (N
1
)
A gas producer turbine “tacho-generator” is attached on
accessory gearbox. It supplies a variable frequency voltage
7-30 26. January 2011