
Garmin G1000 Cockpit Reference Guide for the Piper PA-28-181 Archer
190-01460-00 Rev. A
10
EIS
Flight
InstrumentsEIS
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XPDR/AudioGPS Nav
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OperationAnnun/AlertsAppendixIndex
Fuel Calculations
NOTE: Fuel calculations do not use the aircraft fuel quantity indicators and
are calculated from the last time the fuel was reset.
Fuel used (GAL USED), endurance (ENDUR), range (in nautical miles, RANGE
NM), and fuel efficiency (in nautical miles per gallon, NMPG) are calculated based on
the displayed fuel remaining (GAL REM) and the fuel flow totalizer. The calculated
range also takes into account the aircraft’s heading and the wind direction and speed.
Adjusting the fuel totalizer quantity:
On the Engine Page, use the DEC FUEL and INC FUEL softkeys to obtain
the desired fuel remaining (GAL REM).
Resetting the fuel totalizer:
On the Engine Page, press the RST FUEL Softkey; this resets displayed fuel
remaining (GAL REM) to the maximum fuel capacity for the aircraft and fuel
used to zero. Pressing the TABS Softkey resets the fuel remaining quantity
to the filler neck tabs quantity.
Fuel Calculations Group
Fuel Efficiency
Calculated Range
Calculated Endurance
Calculated Fuel Used
Set Fuel Remaining
A map feature related to the EIS Fuel Calculations is the Fuel Range Ring, which
graphically illustrates the aircraft’s remaining range based on the endurance (ENDUR),
heading, groundspeed, and wind direction and speed. The solid green circle represents
the range until all the remaining fuel is depleted. The dashed green circle indicates
the aircraft range until only reserve fuel remains. Once on reserve fuel, the range is
indicated by a solid yellow circle.
The Fuel Range Ring shifts position in relation to the aircraft according to wind
effects. For example, more fuel is required for flying into a headwind, and the aircraft’s
decreased range in that direction is indicated by the Fuel Range Ring shifting toward
the tail of the Aircraft Symbol.
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