Pilot's Guide

190-00663-02 Rev. B

Garmin G1000 Pilot’s Guide for the Hawker Beechcraft C90A/GT/GTi

FLIGHT INSTRUMENTS

LOW ALTITUDE ANNUNCIATION

NOTE: The Low Altitude Annunciation is available only for aircraft with GIA 63W Integrated Avionics Units

when SBAS is available. This annunciation is not shown unless TAWS is inhibited.

WhentheFinalApproachFix(FAF)istheactivewaypointinaGPSSBASapproachusingverticalguidance,

aLowAltitudeAnnunciationmayappearifthecurrentaircraftaltitudeisatleast164feetbelowtheprescribed

altitude at the FAF. Ablack-on-yellow ‘LOW ALT’ annunciation appears to the top right of theAltimeter,

ﬂashing for several seconds then remaining displayed until the condition is resolved.

Figure 2-47 Low Altitude on GPS SBAS Approach

Altimeter

MINIMUM DESCENT ALTITUDE/DECISION HEIGHT ALERTING

Foraltitudeawareness,aMinimumDescentAltitude(MDA)orDecisionHeight(DH),basedonbarometric

orradaraltitudecanbeset.Whenactive,thealtitudesettingisdisplayedtothelowerleftoftheAltimeterand

withabugatthecorrespondingaltitudealongtheAltimeter(oncethealtitudeiswithinthevisiblerangeofthe

tape).ThefollowingvisualannunciationsalertthepilotwhenapproachingtheMDA/DH:

•Whentheaircraftaltitudedescendstowithin2500feetoftheMDA/DHsetting,aboxlabeledBAROMINor

RAMINappearswiththealtitudeinlightbluetext.Thebugappearsinlightblueonthealtitudetapeatthe

corresponding altitude once in range.

•Whentheaircraftpassesthrough100feetoftheMDAorDH,thebugandtextturnwhite.

•Once the aircraft reaches the MDA/DH, the bug and text turn yellow and the aural alert, “Minimums

Minimums”,isgenerated.

Figure 2-48 Barometric MDA/DH Alerting Visual Annunciations

Altitude ReachedWithin 100 feet

MDA/DH

Setting

MDA/DH

Bug

Within 2500 feet

Alertingisinhibitedwhiletheaircraftisonthegroundanduntiltheaircraftreaches150feetabovethesetting

forthealert.IftheaircraftproceedstoclimbafterhavingreachedtheMDA/DH,onceitreaches50feetabove

theMDA/DH,alertingisdisabled.