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190-00498-07 Rev. A
Garmin G1000 Pilot’s Guide for Cessna Nav III
439
AUTOMATIC FLIGHT CONTROL SYSTEM
SYSTEM
OVERVIEW
FLIGHT
INSTRUMENTS
EIS
AUDIO PANEL
& CNS
FLIGHT
MANAGEMENT
HAZARD
AVOIDANCE
AFCS
ADDITIONAL
FEATURES
APPENDICES INDEX
VERTICAL SPEED MODE (VS)
InVerticalSpeedMode,theightdirectoracquiresandmaintainsaVerticalSpeedReference.Currentaircraft
verticalspeed(tothenearest100fpm)becomestheVerticalSpeedReferenceatthemomentofVerticalSpeed
Mode activation. This modemay beusedfor climbordescent totheSelected Altitude (shown above the
Altimeter) since Selected AltitudeCaptureModeisautomaticallyarmedwhenVerticalSpeedModeisselected.
WhenVerticalSpeedModeisactivatedbypressingthe
VS
Key,‘VS’isannunciatedingreenintheAFCSStatus
BoxalongwiththeVertical Speed Reference. The Vertical Speed Reference is also displayed above the Vertical
SpeedIndicator.AVerticalSpeedReferenceBugcorrespondingtotheVerticalSpeedReferenceisshownon
the indicator.
CHANGING THE VERTICAL SPEED REFERENCE
TheVerticalSpeedReference(shownbothintheAFCSStatusBoxandabove/belowtheVerticalSpeed
Indicator) may be changed:
•Usingthe
NOSE UP/NOSE DN
Keys
•Bypressingthe
CWS
Button,hand-yingtheaircrafttoanewVerticalSpeedReference,thenreleasingthe
CWS
Button
NOTE: If the Selected Altitude is reached during CWS maneuvering, the Altitude Reference is not changed.
To adjust the Altitude Reference in this case, the CWS Button must be pressed again after the Selected
Altitude is reached.
Figure 7-8 Vertical Speed Mode
Vertical Speed
Mode Active
Vertical Speed
Reference
Selected Altitude
Capture Mode
Armed
Command Bars Indicate Climb to
Attain Vertical Speed Reference
Vertical
Speed
Reference
Bug
Selected
Altitude
Vertical
Speed
Reference