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which the pilot has frozen the display.
[1L] POSITION Displays the latitude/longitude given by the selected IRS.
[2L] TTRK True track
[3L] THDG True heading
[4L] WIND True wind direction/velocity
[5L] GPIRS GPS/IRS hybrid position of the IRS
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A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
AUTO FLIGHT - FLIGHT MANAGEMENT
CONTROLS AND INDICATORS - MCDU - PAGE DESCRIPTION
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[6L] FREEZE/UNFREEZE Allows the crew to freeze or unfreeze all data displayed on all three IRS pages. When
the data is frozen, the title of the page specifies the time at which it was frozen. It is
automatically unfrozen when exiting the page.
[2R] GS Ground speed
[3R] MHDG Magnetic heading
[4R] GPIRS ACCUR GPS/IRS Figure of Merit (meters or feet)
[6R] NEXT IRS This prompt enables another IRS page (closed loop IRS 1 → 2 → 3 → 1) to be
displayed.
GPS MONITOR PAGE
Applicable to:
This page displays the GPS data. The pilot calls up this page by pressing the GPS MONITOR
prompt of the DATA INDEX page.
Line 1 and 4 GPS 1,2 POSITION
[ 2L ] and [ 5L ] TTRK GPS 1, 2 true track
[ 3L ] and [ 6L ] MERIT GPS 1, 2 figure of merit (meters or feet)
[ 2R ] and [ 5R ] GS GPS 1, 2 ground speed
To be continued on next page
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
AUTO FLIGHT - FLIGHT MANAGEMENT
CONTROLS AND INDICATORS - MCDU - PAGE DESCRIPTION
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FCOM 19 AUG 10
Continued from previous page
[ 3R ] and [ 6R ] MODE/SAT GPS 1, 2 mode (INIT, ACQ, NAV, TEST, FAULT, AIDED or ALTAID) and Number
of satellites tracked.
INIT : System initialization
ACQ : Satellite acquisition
NAV : Normal mode
TEST : System test
FAULT : Invalid system
ALTAID/ :
AIDED : Degraded modes. GPS uses aircraft inputs for computation
purposes.
[ 2 ] and [ 5 ] UTC GPS 1, 2 UTC
[ 3 ] and [ 6 ] GPS ALT GPS altitude is displayed for information purposes. It is not used by the FMGS.
CLOSEST AIRPORTS PAGES
Applicable to:
The system automatically selects the closest 4 airports from the current aircraft position, and displays
them on these pages. A fifth one can be selected by the pilot.
Page 1 displays the bearing, distance, and time to go to each airport ; page 2 displays the EFOB and
allows the crew to enter an effective wind to be flown to each airport.
The flight crew accesses the CLOSEST AIRPORTS page 1 by pressing the 5L key from the DATA
INDEX A page. They access the CLOSEST AIRPORTS page 2 by pressing the EFOB/WIND prompt
(6R key) on page 1.
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
AUTO FLIGHT - FLIGHT MANAGEMENT
CONTROLS AND INDICATORS - MCDU - PAGE DESCRIPTION
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[1L] - [1R]
to
[4L] - [4R]
The closest four airports are extracted from the database, and ranked by distance
from the aircraft position.
BRG Displays the current bearing from the aircraft's position to the
airport.
DIST Displays the current great-circle distance from the aircraft's
position to the airport.
TIME or UTC Displays the predicted time to the airport, computed using
the current wind or a wind vector entered on page 2, and the
speed according to the current mode (managed or selected).
The time is only computed in cruise phase.
[5L] The crew may enter a fifth airport here, using the 4–letter code. The entry may be
modified at any time, even when “LIST FROZEN” is displayed.
If the pilot enters an airport that is not in the database, then “NOT IN DATABASE” appears in the
scratchpad.
[1L] - [1R] EFOB
to
[5L] - [5R] EFFWIND
Displays the EFOB at each airport. EFOB is only computed in cruise phase.
Used to enter an anticipated headwind or tailwind along the bearing to the airport. If
the entry is preceded by +, T, or TL, a tailwind is assumed.
If the entry is preceded by -, H, or HD, a headwind is assumed.
Before pilot entry, a default value may be displayed, based on the current wind.
The effective wind is used to compute the EFOB and time to the airport.
[6L] FREEZE/UNFREEZE This prompt enables the pilot to freeze and unfreeze the list of four airports.
The list is automatically frozen when accessing page 2. It will remain frozen upon
returning to page 1.
The “LIST FROZEN” message is always displayed on page 2.
RETURN Returns to page 1.
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A320机组操作手册FLIGHT CREW OPERATING MANUAL 1(149)
