Garmin G1000 Cockpit Reference Guide for the Columbia 350/400190-00567-01 Rev. A 2-9SECTION 2FLIGHT INSTRUMENTS2.8 HORIZONTAL SITUATION INDICATOR(HSI)Figure 2-18 Horizontal Situation Indicator (360˚)8149654321713121110Heading Bug2364571 Turn Rate IndicatorNavigation SourceCourse Deviation IndicatorTO/FROM IndicatorCourse PointerRotating Compass Rose111012131498OBS ModeLateral Deviation ScaleFlight PhaseAircraft SymbolLubber LineHeadingTurn Rate and Heading Trend VectorArc HSINOTE: When the Arc HSI is displayed the BRG1and BRG2 Information Windows and pointers aredisabled.NOTE: If the pilot makes a heading changegreater than 105˚ with respect to the course, theCDI switches to the opposite side of the deviationscale and displays reverse sensing.The Arc HSI is a 140˚ expanded section of the compassrose. The Arc contains a Course Pointer arrow, theTO/FROM indicator, a sliding deviation indicator (theTO/FROM and sliding deviation indicators are one andthe same), and a deviation scale. Upon station passage,the TO/FROM indicator flips and points to the tail ofthe aircraft, just like the conventional TO/FROM flag.Depending on the navigation source, the CDI on the ArcHSI can appear in two different ways:• GPS, OBS, VOR – Arrowhead• Localizer – DiamondLateralDeviationScaleCourse Deviation andTO/FROM IndicatorFigure 2-19 Arc HSI
