Garmin G1000 PDAs & Smartphones User Manual


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Garmin G1000 Pilot’s Guide for Cessna Nav III
190-00498-07 Rev. A
SYSTEM
OVERVIEW
FLIGHT
INSTRUMENTS
EIS
AUDIO PANEL
& CNS
FLIGHT
MANAGEMENT
HAZARD
AVOIDANCE
AFCS
ADDITIONAL
FEATURES
APPENDICESINDEX
378
HAZARD AVOIDANCE
Alert Type
PFD/MFD*
Alert
Annunciation
MFD
Pop-Up Alert (except
Terrain-SVS Page)
Aural Message
Reduced Required Terrain Clearance
Warning (RTC)
“Warning; Terrain, Terrain”
Imminent Terrain Impact Warning (ITI) “Warning; Terrain, Terrain”
Reduced Required Obstacle Clearance
Warning (ROC)
“Warning; Obstacle, Obstacle”
Imminent Obstacle Impact Warning (IOI) “Warning; Obstacle, Obstacle”
Reduced Required Terrain Clearance
Caution (RTC)
“Caution; Terrain, Terrain”
Imminent Terrain Impact Caution (ITI) “Caution; Terrain, Terrain”
Reduced Required Obstacle Clearance
Caution (ROC)
“Caution; Obstacle, Obstacle”
Imminent Obstacle Impact Caution (IOI) “Caution; Obstacle, Obstacle”
* Annunciation is displayed on the MFD when terrain display is enabled.
Table 6-17 Terrain-SVS Alerts Summary
FORWARD LOOKING TERRAIN AVOIDANCE
TheForwardLookingTerrainAvoidance(FLTA)featureofTerrain-SVScomparestheaircraft’sprojected
ightpathwithknownterrainandobstaclesintheirrespectivedatabasesandissuesfourtypesofalertsas
either a caution or a warning:
Reduced Required Terrain Clearance (RTC) and Reduced Required Obstacle Clearance (ROC)
alerts are issued when the aircraft flight path is above terrain, yet is projected to come within the minimum
clearancevaluesinFigure6-134.WhenanRTCalertisissued,apotentialimpactpointisdisplayedonthe
Terrain-SVSPage.
Imminent Terrain Impact (ITI) and Imminent Obstacle Impact (IOI) alerts are issued when the
aircraftisbelowtheelevationofaterrainorobstaclecellintheaircraft’sprojectedpath.ITIandIOIalertsare
accompaniedbyapotentialimpactpointdisplayedontheTerrain-SVSPage.Thealertisannunciatedwhen
theprojectedverticalightpathiscalculatedtocomewithinminimumclearancealtitudesinFigure6-134.
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