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The Required Time of Arrival (RTA) page allows the entry and display of a waypoint identifier, with
associated time constraints. The page also displays the entered or computed Estimated Takeoff
Time (ETT), as well as the following data :
‐ Predicted ETA at the time-constrained waypoint ;
‐ Performance adjusted SPD target ;
‐ Time error ;
‐ Distance to time constrained waypoint ;
‐ Active speed mode ;
The pilot calls up this page with the RTA prompt from the vertical revision 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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TITLE RTA (large white font)
line 1 This line displays AT and blue brackets, if no time constraints exist, or AT, DIST and RTA when
a time constraint has been defined.
The waypoint identifier is displayed in large blue font.
If only the waypoint identifier has been defined, blue brackets and a blue star are displayed
facing the 1R prompt.
The pilot enters the time constraint as “HHMMSS”, preceeded by:
- for at or before ;
+ for at or after ;
no sign for at.
[2L] MANAGED This field displays the FMGS-computed ECON speed/Mach (Refer to STLO-22_20_R-40-10
OPTIMUM TARGET SPEED FOR CLIMB, CRUISE, AND DESCENT (ECON SPD/MACH))
[3L] ACT MODE This field displays the active speed mode : MANAGED or SELECTED/NNN (NNN is the
selected target speed).
The pilot cannot modify it through this field.
[6L] RETURN The pilot presses this key to revert the display to the VERT REV page.
[2R] ETAWhen a required time at arrival has been defined, the 2R field displays the estimated time of
arrival as “HHMMSS”.
[3R] RTA ERROR This field is blank when the RTA is predicted as made.
If the RTA is predicted as missed, “RTA ERROR” is displayed in small white font, and the time
error between ETA and RTA is displayed in small amber font.
[6R] ETT The Estimated Takeoff Time (ETT) field is available in the preflight phase. If no ETT is
available, the 6R field displays blue brackets and a blue star. Once available, the ETT is
displayed in magenta.
UTC Universal time is displayed in green for takeoff, climb, cruise, descent and approach phases.
DATA INDEX PAGES
Applicable to:
There are two INDEX pages :
The DATA INDEX 1/2 page gives access to various pages devoted to navigation.
The DATA INDEX 2/2 page lists the navigation data, entered in the FMGS.
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
AUTO FLIGHT - FLIGHT MANAGEMENT
CONTROLS AND INDICATORS - MCDU - PAGE DESCRIPTION
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The pilot enters those items labeled “stored” and can modify them. The pilot can call up the others,
but cannot modify them.
The pilot calls up these pages by pressing the DATA key on the MCDU console :
DATA INDEX 1/2 PAGE
[1L] POSITION MONITOR -
[2L] IRS MONITOR
When the flight crew presses these keys, the display shows all essential
navigation data.
[3L] GPS MONITOR This key calls up the GPS MONITOR page.
[4L] A/C STATUS This key calls up the aircraft status page.
[5L] CLOSEST AIRPORTS. This key calls up the closest airports page.
[6L] EQUITIME POINT This key calls up the equitime point page.
[6R] ACARS/PRINT This key calls up the PRINT function pages and the ACARS function pages.
DATA INDEX 2/2 PAGE
[ 1L ] WAYPOINTS
[ 2L ] NAVAIDS
[ 3L ] RUNWAYS
[ 4L ] ROUTES
These keys call up descriptions of waypoints, navaids, runways, and routes
stored in the database, so that they can be reviewed.
[ 1R ] STORED WAYPOINTS
[ 2R ] STORED NAVAIDS
[ 3R ] STORED RUNWAYS
[ 4R ] STORED ROUTES
These keys call up waypoints, navaids, runways, and routes that the pilot has
stored, enabling the pilot to review and store them in, or delete them from, the
database.
The airline can choose to automatically have all pilot-stored data erased in the
done phase.
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
AUTO FLIGHT - FLIGHT MANAGEMENT
CONTROLS AND INDICATORS - MCDU - PAGE DESCRIPTION
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WAYPOINT/STORED WAYPOINT/NEW WAYPOINT PAGES
Applicable to:
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
AUTO FLIGHT - FLIGHT MANAGEMENT
CONTROLS AND INDICATORS - MCDU - PAGE DESCRIPTION
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