通航信息_通航_通用航空_General Aviation

NOTE
The figure on previous page is a general demonstration of a typical G1000 MFD to show the different display modes. The pictured engine instrument markings may not stringently agree with the current engine limitations of the DA 42.
NOTE
The fuel calculations on the FUEL CALC portion do not use the airplane*s fuel quantity indicators. The values shown are numbers which are calculated from the last fuel quantity update done by the pilot and actual fuel flow data. Therefore, the endurance and range data is for information only, and must not be used for flight planning.
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Designation  Indication  Unit 
LOAD %  Available power  % 
RPM  Propeller RPM  1/min 
FUEL FLOW  Fuel flow  US gal/hr 
OIL TEMP  Engine oil temperature  °C 
OIL PRES  Oil pressure  bar 
COOLANT TEMP  Coolant temperature  °C 
FUEL TEMP.  Fuel temperature  °C 
FUEL QTY GAL  Fuel quantity  US gal 
VOLTS  Volts  V 
AMPS  Ampères  A 
GEARBOX  Gearbox temperature  °C 

Doc. No. 7.01.05-E  Rev. 5  15-Nov-2007  Page 7 - 33 

7.9.5 FUEL SYSTEM

General
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TAE 125
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fuel tank vent
sensor
low fuel sensor
probe switch probe
Page 7 - 34  Rev. 5  15-Nov-2007  Doc. No. 7.01.05-E 

Fuel is stored in the tanks which are located in the wings.
Normally fuel for the right engine is taken from the right wing main tank and for the left engine from the left wing main tank.
On each engine fuel is injected with high pressure directly into the cylinders. The injection nozzles (one per cylinder) are supplied with fuel by the common rail. Pressure inside the rail is generated by a high pressure pump which receives fuel from a low pressure pump. Depending on the power setting the rail pressure is controlled by the ECU through an electric valve. Both pumps are powered mechanically by the engine. Fuel that is not injected is fed back into the appropriate wing tank.
Both sides of the fuel system are interconnected by crossfeed lines.
' In each engine nacelle an auxiliary fuel tank may be installed (O.M 42-056 carried out).
Doc. No. 7.01.05-E  Rev. 5  15-Nov-2007  Page 7 - 35 

Fuel selector valves
For each engine one fuel selector valve is provided. The control levers for the fuel selector valves are situated on the center console behind the power levers. The positions are ON, Crossfeed and OFF. During normal operation each engine takes the fuel from the tank on the same side as the engine. When Crossfeed is selected, the engine will draw fuel from the tank on the opposite side in order to extend range and keep fuel weight balanced during single engine operation. With the fuel selector valve both the feeding and the return line are switched.
　
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