Garmin Flight Deck 100 Marine Instruments User Manual


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Embraer Prodigy
®
Flight Deck 100 Pilot’s Guide
190-00728-04 Rev. A
386
HAZARD AVOIDANCE
EXCESSIVE DESCENT RATE ALERT
The purposeof the Excessive Descent Rate (EDR) alert is to provide suitable notification when the
aircraftisdeterminedtobeclosing(descending)uponterrainatanexcessivespeed.Figure6-80showsthe
parametersforthealertasdenedbyTSO-C151b.
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Descent Rate (FPM)
Height Above Terrain (Feet)
Caution: “SINK RATE”
Warning: “PULL UP”
Figure 6-80 Excessive Descent Rate Alert Criteria
FORWARD LOOKING TERRAIN AVOIDANCE (FLTA)
TheForwardLookingTerrainAvoidancefeatureofTAWS-B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6-81.WhenanRTCalertisissued,apotentialimpactpointisdisplayedonthe
TAWS-B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TAWS-BPage.Thealertisannunciatedwhen
theprojectedverticalightpathiscalculatedtocomewithinminimumclearancealtitudesinFigure6-81.
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