Autopilot Operation
FlightDEK-D180 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
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 within 10 miles if the aircraft is far from the desired course.
Note that NAV/VOR 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 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 is selected as the HSI’s NAVSRC and is valid. NAV/LOC mode
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 indicated by
the 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 430). An
ARINC connection via an HS34 is required. This mode is available when the GPS is selected as the HSI page’s
NAVSRC and is outputting ARINC roll steering commands. NAV/GPSS mode is indicated by the annunciation 'GST' in
the AP LAT:LON status. Note that GPSS is always used when the GPS provides roll steering commands.
To Next Page
Loading...
