Autopilot Operation
EFIS-D100 Pilot’s User Guide 7-7
NAV: VOR NAVIGATION MODE – ROLL SERVO
NAV/VOR mode is available whenever a NAV radio source is selected as the HSI page’s NAVSRC and the CDI reads
within 10 miles if the aircraft is far from the desired course.
N uses no references other than the compass and
is selected as the
HSI’s NAVSRC and is valid. NAV/LOC mode
ed by
th
430). An
A e is available when the GPS is selected as the HSI page’s
n
TO or FROM. NAV/VOR mode is indicated by the annunciation “VOR” in the AP LAT:LON status. NAV/VOR mode
intercepts from any position relative to the station and flies the radial specified on the OBS. It may not be able to
complete an intercept
ote that NAV/VOR mode requires a working, calibrated compass and
the NAV radio. (GPS is not required.) NAV/VOR reverts to and stays in HDG mode if the VOR indicates OFF, as when
crossing the station.
NAV: LOCALIZER TRACKING MODE – ROLL SERVO
NAV/LOC mode is available whenever a LOC source
must be engaged only when the CDI needle is near center (not pegged at either end of the scale) and the airplane is on a
heading near that of the runway. Runway heading for the ILS must be set via the OBS. NAV/LOC mode is indicat
e annunciation “LOC” in the AP LAT:LON status.
Note that NAV/LOC mode requires a working, calibrated compass and uses no references other than the compass and
the NAV radio (GPS is not required). NAV/VOR reverts to HDG mode if the localizer signal becomes invalid.
NAV: GPS STEERING MODE – ROLL SERVO
The AP follows GPS Steering/ARINC roll commands from GPSs which produce them (such as the Garmin
RINC connection via an HS34 is required. This mod
NAVSRC and is outputting ARINC roll steering commands. NAV/GPSS mode is indicated by the annunciation 'GST' i
the AP LAT:LON status. Note that GPSS is always used when the GPS provides roll steering commands.
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