Cockpit Reference Guide

Garmin G1000 Pilot’s Guide for the Piper PA-46 Meridian
190-00763-02 Rev. A
428
AUTOMATIC FLIGHT CONTROL SYSTEM
SYSTEM
OVERVIEW
FLIGHT
INSTRUMENTS
EICAS
AUDIO PANEL
& CNS
FLIGHT
MANAGEMENT
HAZARD
AVOIDANCE
AFCS
ADDITIONAL
FEATURES
APPENDICESINDEX
APPROACH MODES (GPS, VAPP, LOC)
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.
Approach Mode is activated when the APRKeyispressed.ApproachModeacquiresandtrackstheselected
navigation source (GPS, VOR, or LOC), depending on loaded approach. This mode uses the selected navigation
receiver deviation and desired course inputs to fly the approach. Pressing the APRKeywhentheCDIisgreater
thanonedotarmstheselectedapproachmode(annunciatedinwhitetotheleftoftheactivelateralmode).If
theCDIislessthanonedot,theLOCisautomaticallycapturedwhentheAPRKeyispressed.
VOR Approach Mode (VAPP) provides greater sensitivity for signal tracking than VOR Navigation Mode.
Selecting VOR Approach Mode:
1) Ensure a valid VOR frequency is tuned
2) Ensure that VOR is the selected navigation source (use the CDI Softkey to cycle through navigation sources if
necessary).
3) Press the APR Key.
WhenGPSApproachModeisarmed,Glidepath Mode is also armed.
Selecting GPS Approach Mode:
1) Ensure a GPS approach is loaded into the active flight plan. The active waypoint must be part of the flight plan
(cannot be a direct-to a waypoint not in the flight plan).
2) Ensure that GPS is the selected navigation source (use the CDI Softkey to cycle through navigation sources if
necessary).
3) Press the APR Key.
Figure 7-26 GPS Approach Mode Armed
LOCApproachModeallowstheautopilottoyaLOC/ILSapproachwithaglideslope.WhenLOCApproach
Mode is armed, Glideslope Mode is also armed automatically. LOC captures are inhibited if the difference
between aircraft heading and localizer course exceeds 105°.
Selecting LOC Approach Mode:
1) Ensure a valid localizer frequency is tuned.
2) Ensure that LOC is the selected navigation source (use the CDI Softkey to cycle through navigation sources if
necessary).
3) Press the APR Key.
Or:
1) Ensure that GPS is the selected navigation source (use the CDI Softkey to cycle through navigation sources if
necessary).