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Garmin G1000 Pilot’s Guide for Cessna Nav III
190-00498-07 Rev. A
458
AUTOMATIC FLIGHT CONTROL SYSTEM
SYSTEM
OVERVIEW
FLIGHT
INSTRUMENTS
EIS
AUDIO PANEL
& CNS
FLIGHT
MANAGEMENT
HAZARD
AVOIDANCE
AFCS
ADDITIONAL
FEATURES
APPENDICESINDEX
BACKCOURSE MODE (BC)
NOTE: When making a backcourse approach, set the Selected Course to the localizer front course.
Backcourse Mode captures and tracks a localizer signal inthebackcoursedirection. The mode may be
selected by pressing the BCKey.BackcourseModeisarmediftheCDIisgreaterthanonedotwhenthemode
isselected.IftheCDIislessthanonedot,theBackcourseModeisautomaticallycapturedwhentheBC Key
ispressed.TheightdirectorcreatesrollsteeringcommandsfromtheSelectedCourseanddeviationwhenin
BackcourseMode.
Figure 7-25 Backcourse Mode
LOC2 is Selected Navigation Source
Command Bars Hold Pitch Attitude
Pitch Hold
Mode Active
Backcourse
Mode Active
CHANGING THE SELECTED COURSE
The Selected Course is controlled using the CRSKnob.PressingtheCWSButtonandhand-yingthe
aircraftdoesnotresetanyreferencedatawhileinBackcourseMode.Theautopilotguidestheaircraftbackto
the Selected Course when the CWSButtonisreleased.