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flight plan is created.
PERF TAKEOFF PAGE
Applicable to:
During the preflight phase, the pilot presses the PERF key to call up the takeoff performance page.
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_20-50-10-25 P 79/104
FCOM 19 AUG 10
TITLE TAKE OFF is in large white font, when the takeoff phase is not active, and in large
green font when it is.
Note: If the runway is changed but the origin airport remains the same, the MCDU
message “CHECK TAKEOFF DATA” is displayed, but all takeoff parameters
are retained.
[ 1L ] V1
[ 2L ] VR
[ 3L ] V2
The boxes remain amber, as long as the pilot does not make entries in them.
The pilot can modify any entry, as long as the takeoff phase is not active.
Note: If the pilot does not enter V2, the SRS mode will not be available at takeoff.
[ 4L ] TRANS ALT
(transion altitude)
This field displays the navigation database default altitude (if defined) once the origin
airport is entered. The pilot can modify it.
[ 5L ] THR RED
(thrust reduction altitude) This is the altitude at which the pilot should reduce the thrust from TOGA/FLX to MAX
CLIMB (CL detent) with all engines operative.
The thrust reduction altitude defaults to 1 500 ft above the ‐ runway elevation, or to
the altitude set by the airline.
‐ The pilot can modify this altitude : The minimum is 400 ft above the runway
elevation.
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
A318/A319/A320/A321 FLEET DSC-22_20-50-10-25 P 80/104
FCOM 19 AUG 10
Continued from previous page
ACC
(Acceleration altitude) This is the altitude at which the climb phase is triggered.
‐ The target speed jumps to the initial climb speed.
‐ The default value is 1 500 ft above runway elevation.
‐ The flight crew can modify the value. The minimum value is 400 ft above runway
elevation, though it is always higher than, or equal to, THR RED.
Note: ‐ A clearing action reverts both values to the defaulted ones.
‐ When the flight crew selects an altitude on the FCU that is below THR
RED, it brings THR RED and ACC down to this altitude. (The 400 ft
minimum still applies).
[ 6L ] UPLINK TO DATA This key calls up the UPLINK TO DATA REQ page.
It is only displayed in the preflight and done phases.
[ 1R ] RWY or EO CLR This field shows the takeoff runway selected on the active flight plan. The flight crew
cannot make an entry from this field. If no runway has been inserted in the flight plan
the field shows dashes. EO CLR is displayed when an engine-out is detected.
[ 2R ] TO SHIFT The takeoff shift is the distance in meters or feet between the beginning of the runway
and the aircraft's takeoff position. When taking off from an intersection, the flight crew
should insert this value to ensure a correct update of the FM position. The takeoff shift
value must be positive, and cannot be greater than the runway length.
[ 3R ] FLAPS/THS This is an optional flight crew entry for the positions of the flaps and the trimmable
horizontal stabilizer (THS) at takeoff.
It is for information only (no action). The flight crew can modify it until takeoff, by
entering “UP X.X” or “X.X UP”, or “DN X.X” or “X.X DN” for the THS.
[ 4R ] FLX TO TEMP The flight crew inserts the FLX TO temperature for FLX takeoff setting purposes. The
flight crew can only enter it during preflight.
The system sends it to the FADEC and displays the entered data on the upper ECAM
display. The TEMP value is always entered in degrees Celsius.
[ 5R ] ENG OUT ACC This field displays the engine-out acceleration altitude, as defined in the database, or is
manually entered by the flight crew. This is for display only, as a reminder. It cannot be
cleared. The above ACC altitude rules of [ 5L ] apply to this field.
[ 6R ] NEXT PAGE This key calls up the climb performance page.
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_20-50-10-25 P 81/104
FCOM 19 AUG 10
PERF CLIMB PAGE
Applicable to:
TITLE CLB is displayed in large white fonts when the climb phase is inactive, and
in large green fonts if it is active.
[ 1L ] ACT MODE This field displays the preselected or active speed mode : SELECTED or
　
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