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function of the ECON MACH value.
MANAGED SPEED TARGET MEMORIZATION
Applicable to: ALL
A dual FM failure has different consequences when it occurs in different phases of the flight.
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
AUTO FLIGHT - FLIGHT GUIDANCE
SPEED/MACH CONTROL
A330/A340 FLEET DSC-22_30-40 P 4/4
FCOM 19 AUG 10
The system handles target speed and SPD mode as follows:
During approach with LOC and G/S modes engaged and radio ‐ altitude < 700 ft, the target speed is
set to VAPP as previously memorized, and managed SPD target is maintained
‐ At go-around, the target speed becomes the memorized go-around speed, which is the higher of
VAPP or the speed when go-around was initiated. Managed SPD target is maintained
‐ In all other cases, managed target speed reverts to selected, the value being the speed at the
moment of the failure.
SPEED/MACH FCU WINDOW SYNCHRONIZATION
Applicable to: ALL
When the target SPD is managed, the SPD/MACH window of the FCU shows dashes.
However, the window displays the target SPD or MACH in the following situations:
‐ The flight crew turns the SPD/MACH knob.
If the flight crew does not pull the knob within 45 s after turning it, the selection reverts to dashes
‐ The flight crew manually engages a selected SPD target
‐ If the flight crew has manually preselected a speed or Mach number for the next phase on the
MCDU PERF page, that preselected SPD/MACH engages when the aircraft enters that phase and
the FCU window then displays as the target the preselected speed or Mach
‐ If the FMGES is powered up in flight, the synchronized speed/Mach value is the current aircraft
speed or Mach number
‐ If no V2 is entered at takeoff, the V/S mode engages 5 s after lift-off (no speed reference system).
The FCU speed target is the speed at V/S mode engagement. (A/THR becomes active when the
thrust levers are set in the active range)
‐ If both FMGECs fail, the speed displayed is the last aircraft speed acquired before the failure.
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
AUTO FLIGHT - FLIGHT GUIDANCE
AP/FD MODES GENERAL
A330/A340 FLEET DSC-22_30-50 P 1/2
FCOM 19 AUG 10
AP/FD MODES GENERAL
Applicable to: ALL
The FMGES has guidance parameters for both AP/FD lateral and vertical modes.
The AP/FD lateral modes are:
RWY, RWY TRK Runway, Runway track mode
NAV Nav mode
HDG, TRK Heading, track mode. Also called basic modes
APP NAV Approach Nav mode
LOC*, LOC Loc capture, Loc track mode
LOC B/C Loc back course
LAND Land mode. Managed submode that includes LOC and G/S modes below
400 ft RA
FINAL APP Final approach mode. Managed submode that includes APP NAV and FINAL
modes during non-precision approach
ROLL OUT Roll out mode (Autoland)
GA TRK Go-around track mode
The AP/FD vertical modes are:
SRS SRS mode for takeoff and go-around
CLB Climb mode
DES Descent mode
OP CLB Open Climb mode
OP DES Open Descent mode
V/S or FPA Vertical Speed mode or Flight Path Angle mode. Also called basic modes
ALT* Altitude capture
ALT Altitude Hold mode
ALT CST* Altitude constraint capture
ALT CST Altitude constraint hold mode
ALT CRZ* Altitude capture of the cruise flight level
ALT CRZ Altitude hold of the cruise flight level
G/S* Glide slope capture
G/S Glide slope mode
FINAL Final mode (Non precision approach)
FLARE Flare mode (Autoland)
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
AUTO FLIGHT - FLIGHT GUIDANCE
AP/FD MODES GENERAL
Intentionally left blank
A330/A340 FLEET DSC-22_30-50 P 2/2
FCOM 19 AUG 10
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
AUTO FLIGHT - FLIGHT GUIDANCE
AP/FD LATERAL MODES
A330/A340 FLEET DSC-22_30-60 P 1/6
FCOM 19 AUG 10
HEADING OR TRACK: HDG - TRK
Applicable to: ALL
These modes guide the aircraft laterally along a heading or track selected by the flight crew. The
HDG/TRK window of the FCU displays the target heading or track. The flight crew uses the HDG
V/S -TRK FPA pb to select heading or track.
ENGAGEMENT CONDITIONS
HDG or TRK is engaged when one of the following conditions is met:
The flight crew pulls out the HDG/TRK knob ‐ (not sooner than 5 s after lift-off)
‐ NAV is disengaged, either by the loss of the lateral flight plan or by the flight crew entering a
flight plan discontinuity
‐ FINAL mode (armed or engaged) is lost when the aircraft is in APP NAV mode
‐ LOC or LOC* mode is lost
‐ The flight crew engages the AP/FD with no other mode already engaged (basic mode of AP/FD
　
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