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Cockpit Reference Guide for the Prodigy

™

Flight Deck 300

190-00761-00 Rev. A

Abnormal Operation

Flight

InstrumentsEAS

Nav/Com/

XPDR/AudioAFCSGPS Nav

Flight

PlanningProcedures

Hazard

Avoidance

Additional

Features

Abnormal

Operation

Annun/

AlertsAppendixIndex

prominentlydisplayed,alsoinyellow,ontheHSIslightlyaboveandtotherightofthe

aircraftsymbolontheCDIasshowninthefollowinggure.Also,theCDIdeviation

bar is removed from the display. Lastly, but at the same time, a ‘GPS NAV LOST’ alert

messageappearsonthePFD.

Normal navigation using GPS/WAAS source data resumes automatically once a

valid GPS solution is restored.

It is important to note that estimated navigation data supplied by the system in

DRModemaybecomeincreasinglyunreliableandmustnotbeusedasasolemeans

of navigation. If, while in DR Mode, airspeed and/or heading data is also lost or

notavailable,theDRfunctionmaynotbecapableofestimatingyourpositionand,

consequently, the system may display a path that is different than the actual movement

of the aircraft. Estimated position information displayed by the system through

DRwhilethereisnoheadingand/orairspeeddataavailableshouldnotbeusedfor

navigation.

DRModeisinherentlylessaccuratethanthestandardGPS/WAASModeduetothe

lack of satellite measurements needed to determine a position. Changes in wind speed

and/or wind direction compounds the relative inaccuracy of DRMode.Becauseofthis

degraded accuracy, the crew must maintain position awareness using other navigation

equipment until GPS-derived position data is restored.

Dead Reckoning Indications

Symbolic Aircraft

(Map pages and Inset Map)

CDI ‘DR’ Indication on PFD

1 2 ... 95 96 97 98 99 100 101 102 103 104 105 ... 159 160

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Garmin Software Version 0734.23 Guia do Utilizador Página 100