Garmin Flight Deck 100 Marine Instruments User Manual


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Embraer Prodigy
®
Flight Deck 100 Pilot’s Guide
190-00728-04 Rev. A
464
AUTOMATIC FLIGHT CONTROL SYSTEM
aUtomatic reversion to Pitch holD moDe
SeveralsituationscanoccurwhileVerticalPathTrackingModeisactivewhichcausetheightdirectorto
reverttoPitchHoldMode:
•Verticaldeviationexceeds200feetduringanoverspeedcondition.
•Verticaldeviationexperiencesadiscontinuity(notduetoanaltimeterbarometricsettingadjustment)that
bothexceeds200feetinmagnitudeandresultsintheverticaldeviationexceeding200feetinmagnitude.
Suchdiscontinuitiesareusuallycausedbyightplanchangesthataffecttheverticalprole.
•Verticaldeviationbecomesinvalid(theVerticalDeviationIndicatorisremovedfromthePFD).
•AdisplayentersReversionaryMode(thisdoesnotapplytoanactivedirect-towithverticalconstraint).
UnlessVNVisdisabled,VerticalPathTrackingModeandtheappropriatealtitudecapturemodebecome
armedfollowingthereversiontoPitchHoldModetoallowforpossibleprolerecapture.
non-Path Descents
PitchHold,VerticalSpeed,andFlightLevelChangemodescanalsobeusedtoynon-pathdescents
whileVNVightcontrolisselected.IftheVS or FLCKeyispressedwhileVerticalPathTrackingModeis
selected,VerticalPathTrackingModerevertstoarmedalongwiththeappropriatealtitudecapturemodeto
allowprolere-capture.
Figure 7-16 Flight Level Change VNV Non-Path Descent
Topreventimmediateprolere-capture,thefollowingmustbesatised:
•Atleast10secondshavepassedsincethenon-pathtransitionwasinitiated
•Verticaldeviationfromtheprolehasexceeded250feet,butisnowlessthan200feet
PressingtheVNVKeytwicere-armsVerticalPathTrackingforimmediateprolere-capture.
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