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Arc Mode.............................................................................................................................................................1/4
Plan Mode........................................................................................................................................................... 2/4
Rose Modes........................................................................................................................................................ 3/4
Flight Plan Display Colors...................................................................................................................................3/4
DSC-22_10-50 WARNINGS AND CAUTIONS
WARNINGS AND CAUTIONS............................................................................................................................ 1/6
MEMO DISPLAY.................................................................................................................................................6/6
DSC-22_10-60 ELECTRICAL SUPPLY
BUS EQUIPMENT LIST......................................................................................................................................1/2
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
AUTO FLIGHT - GENERAL
DESCRIPTION
A330/A340 FLEET DSC-22_10-10 P 1/8
FCOM 19 AUG 10
PREAMBLE
Applicable to: ALL
This section gives a general description of the Auto Flight System and its functions:
Architecture‐
Function description‐
Basic principle of systems:‐
• Reversion
• Protection
• Managed and selected guidance modes.
Mode information‐
Display characteristics‐
Operational principles‐
Flight crew interface (‐MCDU pages)
Degraded modes of operations.‐
DESCRIPTION
Applicable to: ALL
The Flight Management Guidance and Envelope System (FMGES) contains the following units:
Two Flight Management Guidance and Envelope Computers (FMGEC)‐
Three Multipurpose Control‐ and Display Units (MCDU)
One Flight Control Unit (FCU)‐
One Flight Management source selection device.‐
GENERAL PHILOSOPHY
Applicable to: ALL
The Flight Management Guidance and Envelope System (FMGES) provides predictions of flight time,
mileage, speed, economy profiles and altitude.
It reduces cockpit workload, improves efficiency, and eliminates many routine operations generally
performed by the flight crew.
The Flight Management Guidance and Envelope System (FMGES) operates as follows:
During cockpi‐t preparation the flight crew uses the Multipurpose Control and Display Unit (MCDU)
to insert a preplanned route from origin to destination. This route includes SID, EN ROUTE,
WAYPOINTS, STAR, APPROACH, MISSED APPR, and ALTN route as available from the
navigation database.
Subsequently the system defines a vertical profile and a speed profile, taking into account ATC‐
requirements and performance criteria.
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
AUTO FLIGHT - GENERAL
DESCRIPTION
A330/A340 FLEET DSC-22_10-10 P 2/8
FCOM 19 AUG 10
Either FMGEC performs all operations, if one FMGEC fails.
The FMGES computes the aircraft position continually, using stored aircraft performance data and
navigation data. Therefore it can steer the aircraft along a preplanned route and vertical and speed
profiles. This type of guidance is said to be “managed”.
If the flight crew wants to modify any flight parameter (SPD, V/S, HDG, etc.) temporarily, they may
do so by using the various Flight Control Unit (FCU) selectors. The FMGES then guides the aircraft
to the target value of this parameter that they have selected. This type of guidance is said to be
“selected”.
The two available types of guidance, then, are:
Managed guidance guides the aircraft along the preplanned route and the ve‐rtical and
speed/Mach profile (the FMGES computes the target values of the various flight parameters).
Selected guidance guides the aircraft to the target values of the various flight parameters the flight‐
crew selects by using the FCU selectors.
Selected guidance always has priority over managed guidance.
FLIGHT MANAGEMENT GUIDANCE AND ENVELOPE COMPUTER (FMGEC)
Applicable to:
Each FMGEC is divided in four main parts:
The Flight Management (FM) part controls the following functions:‐
• Navigation and management of navigation radios
• Flight planning and management
• Performance prediction and optimization
• Display management.
The Flight Guidance (FG) part performs the following functions:‐
• Autopilot (AP) command
• Flight Director (FD) command
　
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