FMS GENERAL DESCRIPTION
FMGS OPERATION 11
Guidance modes
Guidance modes of the FMGC are of two types:
− Managed modes provide guidance computed by the FMGC to follow
the flight plan track, profile and/or speed schedule, as programmed
in the MCDU. To engage a Managed mode, pilot action is to push
the appropriate selector knob on the FCU.
− Selected modes provide guidance to capture and maintain a target
value of a flight parameter selected directly by the pilot on the FCU.
Pilot action is to pull the appropriate mode selection knob, then turn
it to set the desired value of the parameter.
The aircraft can be operated with mixed selected and managed modes,
i.e. Lateral Guidance SELECTED and Speed MANAGED or Lateral
Guidance MANAGED with Vertical Guidance SELECTED.
Vertical Guidance MANAGED mode is only available if Lateral Guidance
is MANAGED (NAV).
The following paragraphs describe the aircraft logic used to advise the
pilot of the actual operating mode: MANAGED or SELECTED.
AIRBUS A318/319/320/321
© THALES AVIONICS S.A.
J43126AA 00
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