Garmin G3X Touch Pilot’s Guide 190-01754-00 Rev. E266AFCSSystemOverviewFlightInstrumentsEISCNSInterfaceGPSNavigationFlightPlanningHazardAvoidanceAdditionalFeaturesAFCSAnnun/AlertsAppendixIndexCHANGING THE VERTICAL SPEED REFERENCEThe Vertical Speed Reference may be adjusted in the following ways:• Use the NOSE UP/DN Wheel (GMC 305) or touch the autopilot, touch VS,and touch Nose Up or Nose Down to adjust the Vertical Speed Reference inincrements of 100 fpm. The current Vertical Speed Reference is displayed inthe G3X Touch Autopilot Status Box for 10 seconds after a change is madeand as a reference bug on the Vertical Speed Indicator.• Press the CWS Button (if equipped) and hand-fly the aircraft to a newVertical Speed Reference. When the CWS Button is released, the aircraft’svertical speed (to the nearest 100 fpm) is established as the new VerticalSpeed Reference.Vertical Speed ModeVertical SpeedMode Active Vertical SpeedReferenceINDICATED AIRSPEED MODE (IAS) (GMC 305 ONLY)Indicated Airspeed Mode is selected by touching IAS. This mode acquires andmaintains the Airspeed Reference (IAS) while climbing or descending. When IndicatedAirspeed Mode is active, the flight director continuously monitors Selected Altitude,airspeed and altitude.The Airspeed Reference is set to the current airspeed upon mode activation.Indicated Airspeed Mode is indicated by a green ‘IAS’ annunciation beside the AirspeedReference in the Autopilot Status Box. The Airspeed Reference is also displayed as alight blue bug corresponding to the Airspeed Reference along the airspeed tape.