Garmin G1000 PDAs & Smartphones User Manual


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190-00498-07 Rev. A
Garmin G1000 Pilot’s Guide for Cessna Nav III
SYSTEM
OVERVIEW
FLIGHT
INSTRUMENTS
EIS
AUDIO PANEL
& CNS
FLIGHT
MANAGEMENT
HAZARD
AVOIDANCE
AFCS
ADDITIONAL
FEATURES
APPENDICES INDEX
373
HAZARD AVOIDANCE
normallyaffectpressurealtitudesensors.GSLaltitudedoesnotrequirelocalaltimetersettingstodetermineMSL
altitude.Itisawidely-usedMSLaltitudesource.
TerrainandobstacledatabasesarereferencedtoGSL.UsingtheGPSpositionandaltitude,theTerrain-SVS
featureportraysa3-Dpictureofthesurroundingterrainandobstaclesrelativetothepositionandaltitudeofthe
aircraft.GPSpositionandGSLaltitudeareusedtocalculateandpredicttheaircraft’sightpathinrelationto
thesurroundingterrainandobstacles.Inthisway,thepilotcanviewpredicteddangerousterrainandobstacle
conditions.
DISPLAYING TERRAIN-SVS DATA
Terrain-SVSusesyellow(caution)andred(warning)to depictterrainandobstacles(withheightsgreater
than200feetabovegroundlevel,AGL)alertsrelativetoaircraftaltitude.Colorsareadjustedautomaticallyas
theaircraftaltitudechanges.ThecolorsandsymbolsinFigure6-126andTables6-15and6-16areusedto
represent terrain, obstacles, and potential impact points.
Figure 6-126 Terrain Altitude/Color Correlation for Terrain-SVS
Unlighted Obstacle Lighted Obstacle
Obstacle Location
< 1000’ AGL > 1000’ AGL < 1000’ AGL > 1000’ AGL
Red obstacle is above or within 100 ft
below the aircraft altitude
Yellow obstacle is between 100 ft and
1000 ft below the aircraft altitude
Table 6-15 Terrain-SVS Obstacle Colors and Symbology
Potential Impact
Point Symbol
Alert Type Example Annunciation
Warning
Caution
Table 6-16 Terrain-SVS Potential Impact Point Symbols with Alert Types
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