Pilot's Guide

190-00552-05 Rev. A
Garmin G1000 Pilot’s Guide for the Cessna Corvalis/Corvalis TT
387
AUTOMATIC FLIGHT CONTROL SYSTEM
SYSTEM
OVERVIEW
FLIGHT
INSTRUMENTS
EIS
AUDIO PANEL
& CNS
FLIGHT
MANAGEMENT
HAZARD
AVOIDANCE
AFCS
ADDITIONAL
FEATURES
APPENDICES INDEX
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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 profile.
•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verticaldirect-to).
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 7-13 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.