Garmin G3X Touch Pilot’s Guide190-01754-00 Rev. L301AFCSSystemOverviewFlightInstruments EISCNSInterfaceGPSNavigationFlightPlanningHazardAvoidanceAdditionalFeatures AFCS Annun/Alerts Appendix IndexSECTION 9 AUTOMATIC FLIGHT CONTROLSYSTEMS (OPTIONAL)NOTE: This section describes capabilities and functions of the optional GarminGFC 500 autopilot system unless otherwise noted.NOTE: The approved Pilot’s Operating Handbook (POH) always supersedesthe information in this Pilot’s Guide.NOTE: Refer to the approved Pilot’s Operating Handbook (POH) for emergencyprocedures.NOTE: VOR, LOC, and GS modes are all GPS-aided. You must have a GPSposition to use VOR, LOC, or GS modes.AFCS SYSTEM ARCHITECTUREAn Automatic Flight Control System (AFCS) is typically comprised of two majorcomponents: A Flight Director (FD) and Autopilot servos. The Flight Director providespitch and roll commands to the autopilot servos. These pitch and rolls commands aredisplayed on the PFD as Command Bars. When the Flight Director is active the pitchand roll commands can be hand-flown by the pilot or when coupled with the flightdirector, the autopilot servos drive the flight controls to follow the commands issued bythe Flight Director. The Flight Director operates independently of the autopilot servos,but in most cases the autopilot servos can not operate independent of the FlightDirector. On G3X Touch installations that do not have a separate and independentFlight Director, the Flight Director is always coupled to the autopilot. The autopilot andoptional yaw damper operate the flight control surface servos to provide automaticflight control.
