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AIRCRAFT SYSTEMS
AUTO FLIGHT - FLIGHT MANAGEMENT
FLIGHT PLANNING - VERTICAL FUNCTIONS
A318/A319/A320/A321 FLEET DSC-22_20-30-20-20 P 1/10
FCOM 19 AUG 10
FMS LEGACY
GENERAL
Applicable to:
The vertical revision function allows the pilot to modify the following parts of the flight plan:
‐ Speed limit
‐ Speed and altitude constraints
‐ Wind
‐ Time constraint (optional)
‐ Step climb or step descent
The pilot selects these functions by pressing the right key on flight plan A or B.
Note: This chapter only describes the 2 following functions, wind and time constraint.
For other vertical revision functions refer to next section (Refer to PRO-NOR-SRP-01-10-A
FLIGHT PLAN INITIALIZATION - VERTICAL FLIGHT PLAN).
GENERAL
Applicable to:
TIME CONSTRAINT
Applicable to:
Without the relevant pin program, the pilot cannot insert a time constraint in the system but only an
estimated takeoff time as described in the chapter PRO NOR SRP Refer to PRO-NOR-SRP-01-10-A
FLIGHT PLAN INITIALIZATION - VERTICAL FLIGHT PLAN.
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
AUTO FLIGHT - FLIGHT MANAGEMENT
FLIGHT PLANNING - VERTICAL FUNCTIONS
A318/A319/A320/A321 FLEET DSC-22_20-30-20-20 P 2/10
FCOM 19 AUG 10
TIME CONSTRAINT
Applicable to:
A time constraint (TIME CSTR) is a time requirement to be met over a specified waypoint of the
lateral flight plan, including destination but excluding the origin and FROM waypoints.
At most, two time constraints may exist : one in the active flight plan
one in the secondary flight plan.
When a second time constraint is entered in a flight plan, the first one is deleted.
The time constraint entry is not allowed in Engine Out mode or once the aircraft is in descent or
approach phase or go around.
A time constraint is displayed in magenta as long as the predictions are not computed.
Once the predictions are available, the time constraint value is replaced by the predicted time at the
related waypoint, highlighted by a star (*) :
if the TIME CSTR is predicted ‐ as matched, the star (*) is magenta
‐ if the TIME CSTR is predicted as missed, the star (*) is amber.
No specific symbol is provided on the ND.
A time constraint is cleared as any other constraints. If a time constraint is automatically deleted, a
“TIME CSTR DELETED” message is displayed on MCDU.
TIME CSTR ENTRY
SELECT the F-PLN Key on MCDU
SELECT a VERT REV at revised WPT
WRITE the TIME CSTR into the scratchpad then ENTER it
The display automatically reverts to the F-PLN A page.
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
AUTO FLIGHT - FLIGHT MANAGEMENT
FLIGHT PLANNING - VERTICAL FUNCTIONS
A318/A319/A320/A321 FLEET DSC-22_20-30-20-20 P 3/10
FCOM 19 AUG 10
TIME CONSTRAINT
Applicable to:
WIND
Applicable to:
In order to get the best predictions, the crew must enter wind values for the different phases and for
various waypoints of the cruise phase.
ENTERING THE CLIMB WINDS (F-PLN INITIALIZATION)
When completing the INIT A page, the pilot will enter the winds by depressing the WIND prompt.
He will access the different wind pages using NEXT PHASE key and PREV PHASE key. He will
slew the CRZ WIND page to access the various waypoints of the cruise winds.
The pilot will enter wind data as follows :
‐ for CLB phase ; by inserting either the HISTORY WIND data (as recorded during the last
descent) or by inserting winds (at up to 5 altitudes) on the CLB WIND page.
‐ for CRZ phase ; by inserting winds at various CRZ waypoints on the CRZ WIND pages.
‐ for DES phase ; by inserting winds (at up to 5 altitudes) on the DES WIND page
‐ for the ALTN F-PLN, an average wind may be entered on the DES WIND page for alternate
cruise flight level.
Note: ‐ Cruise wind and alternate wind prompts are not displayed on the FUEL PRED page
with this standard.
‐ Wind can be automatically received (and inserted) through ACARS system Refer to
DSC-22_20-70-B WIND DATA - PROCEDURE TO INSERT WIND DATA)
‐ Once inserted, the F-PLN B page displays the forecast wind profile at all waypoints
using interpolated values from manual entries.
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
AUTO FLIGHT - FLIGHT MANAGEMENT
FLIGHT PLANNING - VERTICAL FUNCTIONS
A318/A319/A320/A321 FLEET DSC-22_20-30-20-20 P 4/10
FCOM 19 AUG 10
WIND ENTRY RULES
When from an empty field, a wind entry is performed, direction/velocity/altitude (or flight level)
must be entered simultaneously. One entry in each bracket. Overwriting a wind cancels the
　
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