Glidepath Mode (Gp) (Waas Only) - Garmin G3X Pilot's Manual

GLIDEPATH MODE (GP) (WAAS ONLY)

NOTE: Press the CWS Button (if equipped) while Glidepath Mode is active
does not cancel the mode. The Integrated Autopilot guides the aircraft back
to the glidepath upon release of the CWS Button.
NOTE: The integrated autopilot will not capture a glidepath or glideslope
from above.
Glidepath Mode is available only in installations with an external GPS navigation
source (i.e., GTN or GNS Series) configured. Glidepath Mode is used to track the
WAAS-based glidepath only. When Glidepath Mode is armed, 'GP' is annunciated in
white in the G3X Autopilot Status Box.
Selecting Glidepath Mode:
1) Ensure a GPS approach with vertical guidance (LPV, LNAV/VNAV, LNAV+V)
is loaded into the active flight plan.
2) Ensure that GPS is the selected navigation source (use the CDI SRC Softkey
to cycle through external navigation sources if necessary).
3) Press the ALT/PTCH Softkey to access the autopilot pitch modes and press
the AP APPR Softkey (only available when an external GPS navigation
source (i.e., GTN or GNS Series) is configured).
NOTE: Some RNAV (GPS) approaches provide a vertical descent angle as an
aid in flying a stabilized approach. These approaches are NOT considered
Approaches with Vertical Guidance (APV). Approaches that are annunciated
on the HSI as LNAV or LNAV+V are considered Nonprecision Approaches (NPA)
and are flown to an MDA even though vertical glidepath (GP) information
may be provided.
WARNING: When flying an LNAV approach (with vertical descent angle) with
the Integrated Autopilot coupled, the aircraft will not level off at the MDA
even if the MDA is set in the altitude preselect. The baro minimums feature
can still be used as a reminder to check altitude when approaching the MDA.
190-01115-00 Rev. J
Integrated Autopilot
Garmin G3X Pilot's Guide
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