Embraer Prodigy® Flight Deck 100 Pilot’s Guide
190-00728-04 Rev. A
452
AUTOMATIC FLIGHT CONTROL SYSTEM
FLIGHT DIRECTOR MODES
Flightdirector modes are normally selected independently for the pitch and rollaxes.  Unless other wise
specied,allmodekeysarealternateaction(i.e.,presson,pressoff).Intheabsenceofspecicmodeselection,
the flight director reverts to the default pitch and/or roll modes(s).
Armed modes are annunciated in white and active in green or magenta (if the mode reference is provided by
theGPSnavigationfunction)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 mode(s)forthe axis(es).Automatic
transition from armed to active mode is indicated by the white armed mode annunciation moving to the active
modeeldandashingfor5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indicates
lossofsensor(ADC)ornavigationdata(VOR,LOC,GPS,VNV,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.After5seconds, if no action is
taken,theashingannunciationstopsandtheightdirectorentersthedefaultmodefortheaffectedaxis.
Figure 7-3 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.
FLIGHT DIRECTOR SELECTION
TheGFC700ightdirectorcanbecoupled toeitherthepilot-sideorcopilot-sidePFD datausingtheCPL
Key.Whenthepilot-sideorcopilot-sidedatasourceischanged,theverticalandlateralmodesreverttodefault.
The autopilot follows the selected flight director only, indicated by an arrow pointing toward either the pilot or
copilotside,inthecenteroftheAFCSStatusBox.
The currently active flight director may be turned off and the Command Bars removed from the displays
by pressing the active FDKeyagain. Pressing theFD Key for the inactive flight director only removes the
Command Bars from the corresponding display. The FD key for the selected flight director is disabled when
the autopilot is engaged.
Figure 7-4 Flight Director Selection Indications
Pilot-side Flight Director Selected
Copilot-side Flight Director Selected