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The wind at destination is entered on the PERF APPR page, in the 3L field. If the airport is
magnetic North-referenced, the PERF APPR page displays MAG WIND. If the airport is true
North-referenced, the PERF APPR page displays TRUE WIND.
The wind entry is copied into the true wind reference on the DESCENT WIND page, at ground
level (GRND), and the F-PLN B page, at destination. A ground entry, on the DESCENT WIND
page, is in the same way, automatically copied to the F-PLN B page and the PERF APPR page
(magnetic or true, depending on the airfield reference).
The wind is modifiable in the descent, approach, and go-around phases.
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
AUTO FLIGHT - FLIGHT MANAGEMENT
FLIGHT PLANNING - VERTICAL FUNCTIONS
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FCOM 19 AUG 10
SELECT the PERF key on the MCDU
PRESS the NEXT PHASE key (6R)
WRITE QNH and temperature and enter them.
WRITE the surface wind (magnetic or true, depending on the airport reference) into the scratchpad
and enter it.
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 to minimize recomputation time.
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
AUTO FLIGHT - FLIGHT MANAGEMENT
FLIGHT PLANNING - VERTICAL FUNCTIONS
Intentionally left blank
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A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
AUTO FLIGHT - FLIGHT MANAGEMENT
FLIGHT PLANNING - VERTICAL FUNCTIONS
A330/A340 FLEET DSC-22_20-30-20-25 P 1/12
FCOM 19 AUG 10
FMS2 HONEYWELL
GENERAL
Applicable to: ,
The vertical revision function allows the pilot to modify the following parts of the flight plan :
The Speed limit‐
Speed and altitude constraints‐
Tim‐e constraints
Wind‐
Step climb or step descent‐
Constant Mach segment‐
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 three following functions : Wind and time constraints, and
constant Mach segment.
For other vertical revision functions, Refer to PRO-NOR-SRP-01-05 INTRODUCTION.
TIME CONSTRAINT/RTA
Applicable to: ,
GENERAL
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. When the
predictions are available, the time constraint value is replaced by the predicted time at the related
waypoint, highlighted by a star (*) :
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
AUTO FLIGHT - FLIGHT MANAGEMENT
FLIGHT PLANNING - VERTICAL FUNCTIONS
A330/A340 FLEET DSC-22_20-30-20-25 P 2/12
FCOM 19 AUG 10
　 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 in the same way as any other constraints. If a time constraint is
automatically deleted, the MCDU displays an “RTA DELETED” message.
ENTERING A REQUIRED TIME OF ARRIVAL
SELECT the F-PLN key on MCDU
SELECT a VERT REV at revised WPT
SELECT the RTA prompt (2R key)
The MCDU displays the RTA page.
WRITE the identifier of the waypoint where the time constraint has to be defined
ENTER it in 1L field
The prompt RTA and the distance indication appear.
WRITE the required time of arrival
The format is HHMMSS (entry of seconds is not mandatory)
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
AUTO FLIGHT - FLIGHT MANAGEMENT
FLIGHT PLANNING - VERTICAL FUNCTIONS
A330/A340 FLEET DSC-22_20-30-20-25 P 3/12
FCOM 19 AUG 10
ENTER it in 1R field
CHECK on fields 2R and 3R if the entered constraint can be met.
WIND - TEMPERATURE - QNH
Applicable to: ,
GENERAL
In order to receive the best predictions, the pilot must enter wind and temperature values for the
different phases and for various waypoints of the cruise phase.
The system uses the temperature value at a given altitude, associated with the tropopause as
entered on the INIT A page to optimize the temperature profile.
ENTERING THE TRIP WIND AND TEMPERATURE DURING THE F-PLN INITIALIZATION
The trip wind is a mean wind component for the entire flight from origin to destination. The pilot
can enter it before engine start on the INIT B page. It is usually defined by the airlines flight
operations on the computerized flight plan.
　
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