Approaches Without Vertical Guidance - Garmin G3X Pilot's Manual

APPROACHES WITHOUT VERTICAL GUIDANCE

NOTE: The selected navigation receiver must have a valid VOR or LOC signal
or active GPS course for the flight director to enter Approach Mode.
NOTE: For the autopilot to enter a VLOC mode, the G3X must have GPS
reception, a valid navigation database, and the external navigation receiver
must have a valid signal (VOR or LOC).
Press the AP NAV Softkey or NAV Key (GMC 305) to arm/activate VOR, LOC/BC,
and GPS (LNAV only) lateral modes. Lateral modes acquire and track the selected
navigation source (GPS, VOR, or LOC), depending on the loaded approach. These
modes use the selected navigation receiver deviation and desired course inputs to fly
the approach. Press the AP NAV Softkey when the CDI is greater than one dot to
arm the selected modes (annunciated in white). Press the AP NAV Softkey when the
CDI deviation is less than one dot to activate, capture and track the selected navigation
source (GPS, VOR, or LOC).
Example Control
LNAV
NAV
Key
VOR
(GMC
305)
LOC
or
AP
NAV
BC
Softkey
190-01115-00 Rev. K
Lateral Mode
Approach, GPS
VOR Approach
Capture/Track
LOC Capture/Track
(No Glideslope)
Backcourse
Capture/Track
Approaches without Vertical Guidance
Garmin G3X Pilot's Guide
Annunciation
GPS
Captures and tracks
VOR
the selected navigation
source (GPS, VOR, LOC)
LOC
Captures and tracks
BC a localizer signal for
backcourse approaches
AFCS
Description
343