2-16 Garmin G500 Pilot’s Guide 190-01102-02 Rev. BForewordSec 1SystemSec 2PFDSec 3MFDSec 4HazardAvoidanceSec 5AdditionalFeaturesSec 6Annun.& AlertsSec 7SymbolsSec 8GlossaryAppendix AAppendix BIndex2.6.2 Turn Rate IndicatorThe Turn Rate Indicator is located directly above the rotating compass card.Tick marks to the left and right of the lubber line denote half-standard andstandard turn rates. A magenta Turn Rate Trend Vector shows the current turnrate. The end of the trend vector gives the heading predicted in six seconds,based on the present turn rate. A standard-rate turn is shown on the indicatorby the trend vector stopping at the standard turn rate tick mark, correspondingto a predicted heading of 18º from the current heading. At rates greater than fourdeg/sec, an arrowhead appears at the end of the magenta trend vector and theprediction is no longer valid.Turn Rate indication.Arrowhead shown for aTurn Rate > 4 deg/sec½ StandardTurn RateStandard Turn RateCurrent Track IndicatorLubber LineHeading BugFigure 2-25 Turn Rate Indicator and Trend Vector2.7 Course Deviation indicatorThe Course Deviation Indicator (CDI) moves left or right from the coursepointer along a lateral deviation scale to display aircraft position relative to thecourse. If the course deviation data is not valid, the CDI is not displayed.CrosstrackErrorScaleGPS Levelof ServiceNavigationSource360º HSICDIFigure 2-26 Course Deviation Indicator
