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FCOM 19 AUG 10
The alternate wind profile is as follows :
ALTN CLB wind : Mean wind between ALTN ‐ CRZ wind (as entered on the DESCENT
WIND page), and the wind at primary DEST (as entered on the PERF
APPR page).
‐ ALTN CRZ wind : If no ALTN WIND has been entered on the DESCENT WIND page,
the WIND at primary DEST (as entered on the PERF APPR page) is
considered.
In case no entry is made, zero wind is assumed.
‐ ALTN DES wind : Mean wind between ALTN CRZ WIND and wind at FL 100.
Wind at FL 100 = Interpolation between wind at ALTN CRZ FL and zero
at ALTN DEST.
ENTERING THE APPROACH WIND TEMPERATURE AND QNH
The wind at destination is entered in the 3L field of the PERF APPR page.
It is copied in true reference into the DESCENT WIND page at ground level (GRND), and
F-PLN B page at destination. A ground entry on the DESCENT WIND page is, in the same way,
automatically copied to F-PLN B page and the PERF APPR page.
This wind is modifiable in descent, approach, and go-around phases.
SELECT the PERF key on the MCDU.
PRESS NEXT PHASE (6R).
WRITE QNH and temperature, and enter them.
WRITE the surface wind in the scratchpad, and enter it.
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
AUTO FLIGHT - FLIGHT MANAGEMENT
FLIGHT PLANNING - VERTICAL FUNCTIONS
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FCOM 19 AUG 10
Note: At each wind entry, the descent profile is recomputed. Therefore, it is recommended
to enter all winds, temperature, and QNH at the same time in order to minimize
recomputation time.
CONSTANT MACH SEGMENT
Applicable to:
GENERAL
The pilot can enter the start and end points of a constant Mach segment, and its associated Mach
number, from the VERT REV page.
Only one constant Mach segment may be defined in the active flight plan, and only one in the
secondary flight plan. No constant Mach segment can be defined in the alternate flight plan.
ENTERING A CONSTANT MACH SEGMENT
SELECT the F-PLN key on the MCDU.
SELECT VERT REV at a waypoint .
(Except the destination and alternate flight plan waypoint).
WRITE the Mach/start waypoint pair.
It is possible to enter only the Mach or the waypoint. But, for the first entry, a Mach entry is
mandatory.
The waypoint must be located in front of the aircraft and must be part of the cruise.
ENTER it in the 4L field
The END WPT prompt appears in the 4R field.
WRITE the end waypoint.
The end waypoint must be part of the cruise.
ENTER it in the 4R field.
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
AUTO FLIGHT - FLIGHT MANAGEMENT
FLIGHT PLANNING - VERTICAL FUNCTIONS
Intentionally left blank
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FCOM 19 AUG 10
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_20-30-20-28 P 1/12
FCOM 19 AUG 10
FMS2 THALES
GENERAL
Applicable to:
,
,
MSN,,
4538,,
The vertical revision function allows the crew to insert or modify the following items :
‐ The Speed limit (SPD LIM)
‐ Speed and altitude constraints
‐ Time constraints (RTA)
‐ Predicted Winds
‐ Step climb or step descent
‐ Constant Mach in cruise
The crew calls up the VERT REV page by pressing the right key on F-PLN A or B page.
Note: This chapter only describes the wind and time constraints. For other vertical revision
functions, refer to the PSL PRO NOR SRP.
TIME CONSTRAINT/RTA
Applicable to:
,
,
MSN,,
4538,,
A Required Time of Arrival (RTA) 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. Once the
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_20-30-20-28 P 2/12
FCOM 19 AUG 10
predictions are available, the time constraint value is replaced by the predicted time at the related
waypoint, highlighted by a star (*):
�� If the RTA is predicted as matched, the star (*) is in magenta.
�� If the RTA is predicted as missed, the star (*) is in 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
“RTA DELETED” message is displayed on theMCDU.
SELECT the F-PLN Key on MCDU
SELECT a VERT REV at revised WPT
　
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