Pilot's Guide

Garmin G1000 Pilot’s Guide for the Cessna Corvalis/Corvalis TT
190-00552-05 Rev. A
376
AUTOMATIC FLIGHT CONTROL SYSTEM
SYSTEM
OVERVIEW
FLIGHT
INSTRUMENTS
EIS
AUDIO PANEL
& CNS
FLIGHT
MANAGEMENT
HAZARD
AVOIDANCE
AFCS
ADDITIONAL
FEATURES
APPENDICESINDEX
COMMAND BARS
Uponactivationoftheightdirector,CommandBarsaredisplayedonthePFDasasinglemagentacue.The
CommandBarsmovetogetherverticallytoindicatepitchcommands,andbankleftorrighttoindicateroll
commands.TheCommandBarsdonotoverridetheaircraftsymbol.
Iftheattitudeinformationsenttotheightdirectorbecomesinvalidorunavailable,theCommandBarsare
removedfromthedisplay.TheightdirectorCommandBarsalsodisappearifthepitchexceeds+30˚/-20˚or
bankexceeds65˚.
Aircraft Symbol
Command Bars
Figure 7-3 Command Bars
FLIGHT DIRECTOR MODES
Flight directormodes are normally selected independently for the pitch and rollaxes.  Unless otherwise
specied,allmodekeysarealternateaction(i.e.,presson,pressoff).Intheabsenceofspecicmodeselection,
theightdirectorrevertstothedefaultpitchand/orrollmodes(s).
ArmedmodesareannunciatedinwhiteandactiveingreenintheAFCSStatusBox.Undernormaloperation
whenthecontrolfortheactiveightdirectormodeispressed,theightdirectorrevertstothedefaultmodes(s)
for the axis(es).  Automatic transition from armed to active mode is indicated by the white armed mode
annunciationmovingtothegreenactivemodeeldandashingfor10seconds.
If the information required to compute a ight director mode becomes invalid or unavailable, the ight
directorautomatically revertstothedefault mode for that axis.  A ashing yellow modeannunciationand
annunciatorlightindicatelossofsensor(ADC)ornavigationdata(VOR,LOC,GPS,SBAS)requiredtocompute
commands.Whensuchalossoccurs,thesystemautomaticallybeginstorollthewingslevel(entersRollHold
Mode)ormaintainthepitchangle(entersPitchHoldMode),dependingontheaffectedaxis.Theashing
annunciationstopswhentheaffectedmodekeyispressedoranothermodefortheaxisisselected.Ifafter10
secondsnoactionistaken,theashingannunciationstops.
Figure 7-4 Loss of VOR Signal
Theightdirectorisautomaticallydisablediftheattitudeinformationrequiredtocomputethedefaultight
director modes becomes invalid or unavailable.