Garmin G1000 Diamond DA42NG User Manual

190-00962-02 Rev. A
Garmin G1000 Pilot’s Guide for the Diamond DA42NG 385
HAZARD AVOIDANCE
SYSTEM
OVERVIEW
FLIGHT
INSTRUMENTS
EIS
AUDIO PANEL
& CNS
FLIGHT
MANAGEMENT
HAZARD
AVOIDANCE
AFCS
ADDITIONAL
FEATURES
APPENDICES INDEX
6.6 TERRAIN PROXIMITY
WARNING: Do not use Terrain Proximity information for primary terrain avoidance. Terrain Proximity 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.
G1000TerrainProximityisa terrainawarenesssystemthat 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ProximitywithaTerrainAwarenessandWarningSystem(TAWS).TAWSismoresophisticated
androbust,anditisTSO-C151bcertied.TerrainProximitydoesnotprovidewarningannunciationsorvoice
alerts.Itonlyprovidescolorindicationsonmapdisplayswhenterrainandobstaclesarewithinacertainaltitude
thresholdfromtheaircraft.Althoughtheterrainandobstaclecolormapdisplaysarethesame,TAWSusesmore
sophisticated algorithms to assess aircraft distance from terrain and obstacles.
TerrainProximityrequiresthefollowingcomponentstooperateproperly:
•Valid3-DGPSposition
•Validterrain/obstacledatabase
TerrainProximity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
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MSL.UsingtheGPSpositionandaltitude,theTerrainProximity
featureportraysa2-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 PROXIMITY DATA
TheMap-TerrainProximityPageistheprincipalpageforviewingterrainandobstacleinformation.The
symbols and colors in the figure and table below are used to represent obstacles and aircraft altitude when the

Garmin G1000 Diamond DA42NG Specifications

General

Display Type	LCD
Resolution	1024 x 768 pixels
Manufacturer	Garmin
Aircraft	Diamond DA42NG
Primary Flight Display (PFD)	Yes
Multi-Function Display (MFD)	Yes
Audio Panel	Yes, integrated
Operating System	Proprietary
Weather Radar	Optional
Power Supply	28 VDC
Screen Size	10.4 inches
Number of Displays	2
AHRS	Yes
Air Data Computer (ADC)	Yes
GPS	Yes
Transponder	Yes
Input Method	knobs
Navigation	VOR, ILS, GPS
Traffic Avoidance	TAS/TCAS
Terrain Awareness	Yes, TAWS