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190-00498-07 Rev. A
Garmin G1000 Pilot’s Guide for Cessna Nav III
SYSTEM
OVERVIEW
FLIGHT
INSTRUMENTS
EIS
AUDIO PANEL
& CNS
FLIGHT
MANAGEMENT
HAZARD
AVOIDANCE
AFCS
ADDITIONAL
FEATURES
APPENDICES INDEX
601
APPENDIX D
Normal (OBS not activated)
•Automatic sequencing of waypoints
•ManualcoursechangeonHSInotpossible
•Alwaysnavigates‘TO’theactivewaypoint
•Mustbeinthismodefornalapproach
course
OBS
•Manualsequencing-‘holds’onselected
waypoint
•Manuallyselectcoursetowaypointfrom
HSI
•Indicates‘TO’or‘FROM’waypoint
•Cannotbesetfornalapproachcourseor
published holding patterns
When OBS mode is active, the G1000 allows the pilot to set a desired course to/from a waypoint using the
CRS/BARO
Knob
and HSI (much like a VOR).
The most common application for using the OBS Softkey is the missed approach. The G1000 suspends
automatic waypoint sequencing (indicated by a ‘SUSP’ annunciation placed on the HSI) when the missed
approach point (MAP) is crossed. This prevents the G1000 from automatically sequencing to the missed
approach holding point (MAHP). During this time, the
OBS
Softkey designation changes to
SUSP
. Pressing
the
SUSP
Softkey reactivates automatic waypoint sequencing. The
OBS
Softkey then resumes its normal
functionality.
Why DOes the g1000 nOt aUtOmatically seqUence tO the neXt WayPOint?
The G1000 only sequences flight plan waypoints when automatic sequencing is enabled (i.e., no “OBS” or
‘SUSP’ annunciation). For automatic sequencing to occur, the aircraft must also cross the “bisector” of the turn
being navigated. The bisector is a line passing through the waypoint common to two flight plan legs at an
equal angle from each leg.
hOW can a WayPOint Be skiPPeD in an aPPROach, a DePaRtURe, OR an aRRival?
The G1000 allows the pilot to manually select any approach, departure, or arrival leg as the active leg of
the flight plan. This procedure is performed on the MFD from the Active Flight Plan Page by highlighting the
desired waypoint and selecting the ACT LEG Softkey then the ENT Key to approve the selection. The GPS
then provides navigation along the selected flight plan leg.
When DOes tURn anticiPatiOn Begin?
The G1000 smooths adjacent leg transitions based on a normal 15° bank angle (with the ability to roll up to
30°) and provides three pilot cues for turn anticipation:
•Awaypointalert(‘NextDTK###°in#seconds’or‘NextHDG###°in#seconds’)appearsonthePFD10
seconds before the turn point and flashes as it counts down to zero.
•Aashingturnadvisory(‘Turn[right/left]to###°in#seconds’)appearsonthePFD10secondsbeforethe
turnandashesasitcountsdowntozero.‘Turn[right/left]to###°now’or‘Next[DTK/HDG]to###°now’
is displayed when the pilot is to begin the turn and the HSI (GPS mode) automatically sequences to the next
DTK or HDG value.
•The To/From indicatorontheHSI ips momentarily to indicatethatthe midpoint of the turn hasbeen
crossed.