8
FMS GENERAL DESCRIPTION
SYSTEM OVERVIEW
J43126AA 00
© THALES AVIONICS S.A.
AIRBUS A318/319/320/321
The EFIS Displays: The PFDs and NDs are the visual interface which
enables each pilot to continuously monitor status and operation of the
FMGS. EFIS Control Panel allows the pilot to select the ND mode, range
and navigation features.
The Flight Mode Annunciator (FMA) on the PFD indicates:
−
Armed or active status of the FMGS modes,
−
Engagement status of FD, A/P and A/THR.
The FMA is the primary visual feedback of the FMGS operating modes
to the crew. Every mode change, whether pilot-selected or automatic,
should be verified by reference to the FMA. Typical FMA indications are
shown here under.
The PFD also displays FD or FPD commands and target values, thus
providing a indication of control and thrust inputs commanded by the
FMGC. Typical PFD indications are shown below.
Summary of Contents for FMGS
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