FMS GENERAL DESCRIPTION
FMGS OPERATION 3
The Flight Management and Guidance System (FMGS) provides
guidance from takeoff, through climb, cruise and descent to approach
and landing.
It provides the following capabilities:
−
Pre-flight: definition of the required route and prediction of the
optimum profile and speeds.
−
In flight: comparison of position with the desired profile and
provision of commands to FD, AP, A/THR to fly track and profile at
the required altitude and speed.
The computing systems to perform these functions are contained in
cards located in the FMGC (Flight Management and Guidance
Computer).
There are 2 identical and interchangeable FMGC units on the aircraft
that become FMGC1 or FMGC2 according to their installed position in
the avionics compartment. Normaly FMGC1 is associated with MCDU1
(left pilot seat) and FMGC2 with MCDU2 (right pilot seat).
Throughout this manual the components may be referred to separately
or collectively, e.g.:
−
AP (Autopilot)
−
A/THR (Auto thrust)
−
FD (Flight Director)
−
FG (Flight Guidance)
−
FM (Flight Management)
−
FMS (Flight Management System)
−
FMGC (Flight Management and Guidance Computer)
−
FMGS (Flight Management and Guidance System)
3.1. FMS MODES OF OPERATION
Dual/Single/Independent
General
The operating program of the FMS uses stored and inserted data to
calculate the flight profile and to output information for navigation and
display to the aircraft systems, e.g. the Electronic Flight Control
System and Electronic Flight Instrument System.
FMS are loaded with FMS Software and data which include: Aircraft and
Engine type & model, Navigation data base, Performance data base,
Magnetic Variation data base, Airline Modifiable Information (AMI), and
Operational Program Configuration (OPC).
AIRBUS A318/319/320/321
© THALES AVIONICS S.A.
J43126AA 00
Summary of Contents for FMGS
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