Garmin G3X Touch
™
Pilot’s Guide for Certified Aircraft
190-02472-00 Rev. D
144
GPS Navigation
System
Overview
Flight
InstrumentsEIS
CNS
Interface
GPS
Navigation
Flight
Planning
Hazard
Avoidance
Additional
FeaturesAFCSAnnun/AlertsAppendixIndex
Map Setup Page
Touch to
Enable or
Disable the
Glide Range
Ring
BEST AIRPORT BEARING POINTER
NOTE: In order to display the Best Airport Bearing Pointer, Best Glide Speed
and Sink Rate (at VG) must be configured on the Aircraft Configuration Page
in Configuration Mode. Refer to the G3X Touch Installation Manual for more
information.
The Best Airport Bearing Pointer points to the airport within the Glide Range Ring
that is considered the best option for a landing based on the following criteria:
1)
The airport must be within glide range as determined by the following:
a
) User entered glide performance (Sink Rate and Best Glide Speed).
b
) Aircraft altitude and direction of flight.
c
) Airport elevation.
d
) Wind velocity.
2)
The expected flyover altitude (i.e., airports with 1000' or greater margin
take precedence).
3)
Hard surface runways (i.e., paved runways take precedence over grass
runways).
4)
Runway lengths.
5)
Runway alignment with the wind (if known).
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