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LOC*, LOC Loc capture, Loc track mode
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 used for takeoff and go-around
CLB Climb mode
DES Descent mode
OP CLB Open Climb mode
OP DES Open Descent mode
EXP CLB �� Expedite mode in climb
EXP DES �� Expedite mode in descent
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 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)
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
AUTO FLIGHT - FLIGHT GUIDANCE
AP/FD MODES GENERAL
A318/A319/A320/A321 FLEET DSC-22_30-50 P 2/2
FCOM 19 AUG 10
AP/FD MODES GENERAL
Applicable to:
,
,
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The FMGS 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 Lock back course mode
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 used for takeoff and go-around
CLB Climb mode
DES Descent mode
OP CLB Open Climb mode
OP DES Open Descent mode
EXP CLB �� Expedite mode in climb
EXP DES �� Expedite mode in descent
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 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)
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
AUTO FLIGHT - FLIGHT GUIDANCE
AP/FD LATERAL MODES
A318/A319/A320/A321 FLEET DSC-22_30-60 P 1/8
FCOM 19 AUG 10
HEADING OR TRACK: HDG - TRK
Applicable to:
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
engagement)
‐ LOC mode is armed when APP NAV FINAL were previously engaged.
DISENGAGEMENT CONDITIONS
The engagement of any other lateral mode disengages HDG or TRK.
SYNCHRONIZING THE HDG/TRK WINDOW OF THE FCU
The lateral window of the FCU displays a heading or a track value when:
‐ The HDG/TRK mode is engaged. The displayed value is the current HDG/TRK or the manually
selected value of the target
‐ The flight crew turns the HDG/TRK knob. The value in the window first synchronizes with the
current HDG/TRK, then displays the manual selection. It remains displayed for 10 s or 45 s
depending upon FCU standard, then vanishes if the flight crew does not pull the knob (except in
HDG preset)
‐ A HDG/TRK is preset (Refer to DSC-22_30-60 HDG/TRK Preset)
‐ AP/FD is lost. The value becomes that of the aircraft current heading or track.
Note: If HDG is switched to TRK (or vice versa), the value displayed in the window switches
from heading to track (or vice versa).
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
AUTO FLIGHT - FLIGHT GUIDANCE
AP/FD LATERAL MODES
A318/A319/A320/A321 FLEET DSC-22_30-60 P 2/8
　
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