Garmin G3X Pilots Guide - Page 295

System Overview Flight Instruments EIS COUPLED APPROACH Integrated Autopilot NOTE: Configuration of a GNS 430 or GNS 530 is required for a coupled ILS approach. The external navigator (GNS 430/530), G3X, and autopilot can be used to fly a full ILS approach with procedure turn, from the enroute environment to the missed approach point. Setting up a coupled ILS approach: 1) EXTERNAL NAVIGATOR: Ensure the 'GPS' indication is showing in the lower-left corner. If not, use the CDI Key. 2) G3X: Ensure that GPS1 is the selected navigation source on the PFD or PFD Page (use the CDI SRC Softkey to cycle through external navigation sources if necessary). 3) EXTERNAL NAVIGATOR: Select and activate the ILS approach using the PROC Key. 4) G3X: From the PFD or PFD Page, press the HDG/ROLL Softkey to access the autopilot lateral modes and then press the AP NAV Softkey to activate GPS Mode. The autopilot should start navigating to the IAF (Initial Approach Fix). CNS Interface GPS Navigation Flight Planning Hazard Avoidance Additional Features Integrated Autopilot Annun/Alerts Navigation Softkeys 5) EXTERNAL NAVIGATOR: Tune and identify the localizer frequency by pressing the VLOC Flip-flop Key. (Note: The external navigator should have automatically loaded the localizer frequency into the standby VLOC slot.) 6) G3X: From the PFD or PFD Page, press the ALT/PTCH Softkey to access the autopilot pitch modes and then press the AP APPR Softkey to arm LOC and GS modes. Press the AP ALT Softkey. GPS Mode is now active and LOC Mode is armed in the roll axis. ALT Mode is active and GS is armed in the pitch axis. The autopilot should now navigate the entire approach from the IAF (Initial Approach Fix) to the MAP (Missed Approach Point) with the only adjustment being the throttle. Appendix Index Approach Softkeys 190-01115-00 Rev. F Garmin G3X Pilot's Guide 277