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DSC-22_20-70-B WIND DATA - REQUEST FOR WIND DATA).
[ 4R ] PREV PHASE Pressing this key calls up the CRUISE WIND page.
The prompt is erased after the top of descent is sequenced.
[ 6R ] UPDATE INSERT This prompt is displayed, as soon as a wind entry or a modification is
performed. When it is pressed, the page reverts to the F-PLN A page.
Pressing the up (down) scroll key will display the data at the next
(previous) downpath (up path) descent waypoint.
INIT B PAGE
Applicable to:
,
,
MSN,,
4538,,
This page is used to initialize the gross weight and center of gravity values, before starting the
engines.
The crew can call it up from the INIT A page, by pressing the “→” or “←” key on the MCDU, as long
as the engines have not been started.
This page automatically reverts to the FUEL PRED page after the first engine is started.
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
AUTO FLIGHT - FLIGHT MANAGEMENT
CONTROLS AND INDICATORS - MCDU - PAGE DESCRIPTION
A318/A319/A320/A321 FLEET DSC-22_20-50-10-28 P 15/126
FCOM 19 AUG 10
The FMGC computes its predictions based on the FOB indicated by the FQI computer (or the FAC
as backup) from that moment on.
[ 1L ] TAXI (blue) This is the taxi fuel, that defaults to a preset value, (usually 200 kg).
The crew can change the value through this field.
[ 2L ] TRIP/TIME (green) This field displays the trip fuel and time when predictions are available.
The crew cannot modify these values.
[ 3L ] RTE RSV/% (blue) This field displays the reserve fuel for the route and the corresponding
percentage of trip fuel. It may be blank, if such is the policy of the
operator. The crew can either enter a route reserve, or a percentage,
and the system then automatically computes the nominal value.
[ 4L ] ALTN/TIME (green) Displays alternate trip fuel and time, assuming that the Cost Index =
0 and that the aircraft flies at the default cruise flight level. (Refer to
DSC-22_20-30-10-18-E ALTERNATE FUNCTION - REVIEW AND
SELECTION OF ALTERNATE AIRPORT). This field displays its
information in small font, and it cannot be modified by the flight crew.
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
AUTO FLIGHT - FLIGHT MANAGEMENT
CONTROLS AND INDICATORS - MCDU - PAGE DESCRIPTION
A318/A319/A320/A321 FLEET DSC-22_20-50-10-28 P 16/126
FCOM 19 AUG 10
[ 5L ] FINAL/TIME (blue) Displays the hold fuel and time, associated with continued flight to
the alternate airport (or destination airport, if selected in the “airline
fuel policy” section of the database). The flight crew may enter a final
fuel or time, and the system will compute associated holding time/fuel
available. The system assumes that the holding will be in a racetract
pattern, 1 500 ftabove the alternate airport, for 30 min, with the aircraft
in CONF1 at maximum endurance speed (racetrack pattern, altitude
and selected airport can be modified through the “airline fuel policy”
section of the database).
[ 6L ] EXTRA/TIME (green) Displays the amount of extra fuel, and the available time it represents
for holding over the alternate or primary destination, if the crew did not
define an alternate.
EXTRA FUEL = BLOCK - (TAXI + TRIP + RSV + ALTN + FINAL)
The field displays its information in small font, and it cannot be modified
by the flight crew.
[ 1R ] ZFWCG/ZFW Displays the Zero Fuel Weight (ZFW) and Zero Fuel Weight CG
(ZFWCG). These values must be entered to allow the system to
compute speed management predictions.
[ 2R ] BLOCK The block fuel in this field is a mandatory entry, that enables the system
to predict the Estimated Fuel On Board (EFOB).
When the flight crew enters a block fuel, the page title changes to INIT
FUEL PREDICTION.
Note: If the pilot enters a number in the 1R or 2R field that exceeds the limits, the field displays
“ENTRY OUT OF RANGE” and does not accept the value.
[ 3R ] FUEL PLANNING
(amber)
Initiates an FMGC block fuel computation. When the pilot selects this
function, FUEL PLANNING becomes green, and the BLOCK field
is dashed during FMGC computation. The title of the page changes
to INIT FUEL PLANNING, and BLOCK CONFIRM* replaces the
FUEL PLANNING prompt, when the block fuel is computed by the
FMGC. If the pilot modifies the parameters used to compute prediction
before confirmation, the computation automatically restarts and FUEL
PLANNING is displayed in green.
[ 4R ] TOW/LW (green) Displays the computed Takeoff Weight (TOW) and Landing Weight
(LW) at the primary destination. This cannot be modified.
　
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