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
372
HAZARD AVOIDANCE
6.7 TERRAIN-SVS
WARNING: Do not use TERRAIN-SVS information for primary terrain avoidance. TERRAIN-SVS is intended
only to enhance situational awareness.
NOTE: Terrain data is not displayed when the aircraft is outside of the installed terrain database coverage
area.
NOTE: Terrain-SVS is standard when the Synthetic Vision System (SVS) option is installed. The TAWS-B
option will take precedence over Terrain-SVS when TAWS-B is installed.
Terrain-SVSisaterrainawarenesssystemavailablewiththeSyntheticVisionSystem(SVS).SVSfunctionality
isofferedasanoptionalenhancement.TheoptionalTerrainAwarenessandWarningSystem-ClassB(TAWS-B)
orstandardTerrain-SVSisintegratedwithinSVStoprovidevisualandauditoryalertstoindicatethepresence
ofthreateningterrainrelevanttotheprojectedightpath.FordetailedinformationregardingSVS,refertothe
AdditionalFeaturessectionofthisPilot’sGuide.
Terrain-SVSdoesnotcomplywithTSO-C151bcerticationstandards.Itincreasessituationalawarenessand
aidsinreducingcontrolledightintoterrain(CFIT).DonotconfuseTerrain-SVSwithTAWS-B.TAWS-Bismore
sophisticatedandrobust,anditisTSO-C151bcertied.Althoughtheterrainandobstaclecolormapdisplays
arethesame,TAWS-Busesmoresophisticatedalgorithmstoassessaircraftdistancefromterrainandobstacles.
Terrain-SVSdoesnotprovidethefollowing:
•PrematureDescentAlerting(PDA)
•ExcessiveDescentRate(EDR)
•NegativeClimbRate(NCR)
•Descentto500FeetCallout(DFC)
Terrain-SVSrequiresthefollowingcomponentstooperateproperly:
•Valid3-DGPSposition
•Validterrain/airportterrain/obstacledatabase
Terrain-SVS displays altitudes of terrain and obstructions relative to the aircraft position and altitude with
referencetoadatabasethatmaycontaininaccuracies.Terrainandobstructionsareshownonlyiftheyareinthe
database.Terrainandobstacleinformationshouldbeusedasanaidtosituationalawareness.Theyshouldnever
be used to navigate or maneuver around terrain.
Note that all obstructions may not be available in the terrain and obstacle database. No terrain and obstacle
informationisshownwithoutavalid3-DGPSposition.
TheG1000GPSreceiverprovidesthehorizontalpositionandaltitude.GPSaltitudeisderivedfromsatellite
position.GPSaltitudeisthenconvertedtotheheightabovegeodeticsealevel(GSL),whichistheheightabove
meansealevelcalculatedgeometrically.GSLaltitudeisusedtodetermineterrainandobstacleproximity.GSL
altitude accuracy is affected by satellite geometry, but is not subject to variations in pressure and temperature that
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