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path. If no center of gravity has been entered, the screen displays amber
boxes next to this key. The pilot must enter information in these boxes in
order to obtain a speed profile, speed computations and predictions.
The pilot can modify both the GW and CG.
Line 3 FOB This field displays the fuel on board, computed by the FCMC (or FE as
backup).
The flight crew cannot modify this number.
[ 4L ] RTE RSV/% Prior to departure, this field displays the route reserve fuel and the
corresponding percentage of trip fuel. After takeoff, it displays the
percentage of the remaining trip fuel from the present position to the
destination. The field may be blank, depending on the fuel policy of the
operating airline. The crew can enter either a RTE RSV or a RTE RSV %.
The system automatically computes the other value.
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
AUTO FLIGHT - FLIGHT MANAGEMENT
CONTROLS AND INDICATORS - MCDU - PAGE DESCRIPTION
A330/A340 FLEET DSC-22_20-50-10-25 P 17/124
FCOM 19 AUG 10
[ 5L ] FINAL/TIME This field 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 pilot 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 racetrack pattern, 1 500 ft
above 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 This field displays the amount of extra fuel, and the resulting time available
for holding over the primary destination.
EXTRA FUEL = BLOCK – (TAXI + TRIP + RSV + ALTN + FINAL)
The pilot cannot modify this field (displayed in small green font).
[ 3R ] JET GW When the FMS Fuel Jettison option is activated, the flight crew can enter
the jettison final gross weight in this field. The FCMC uses this value to stop
jettison.
[ 4R ] CRZ
TEMP/TROPO
This field displays the temperature at the cruise flight level and the altitude of
the tropopause. The tropopause defaults to 36 090 ft.
The pilot can modify both values.
The field is dashed, when the aircraft sequences the top of climb.
Note: All fields, except [ 3R ], [ 4R ], [ 5R ] and [ 6R ], show dashes until the flight crew starts an
engine.
FLIGHT PLAN PAGES
Applicable to: ,
GENERAL
These pages display all waypoints of the active and alternate flight plans, along with associated
predictions.
The pilot can make all revisions to the lateral and vertical flight plans through these pages. He
presses the left key to revise the lateral flight plan and the right key to revise the vertical flight plan.
He presses the F-PLN key on the MCDU console to gain access to the A page of the active flight
plan.
FLIGHT PLAN A PAGE
The A page displays time, speed, and altitude predictions for each waypoint of the active flight
plan.
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
AUTO FLIGHT - FLIGHT MANAGEMENT
CONTROLS AND INDICATORS - MCDU - PAGE DESCRIPTION
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FCOM 19 AUG 10
TITLE FLIGHT NUMBER (blank if no flight number has been entered) This line
may display yellow TMPY if a temporary flight plan exists, white OFST, if a
lateral offset is flown or yellow OFST if a lateral offset revision is pending.
Line 1 to 5 WPT, UTC,
SPD/ALT
These lines display consecutive waypoints along with associated
predictions of time, speed or Mach and altitude for each.
TIME is displayed before takeoff and UTC after takeoff. After the pilot
enters an estimated takeoff time (ETT), UTC is displayed. The time and
flight level display at the FROM waypoint (first line of the flight plan) are
values that the system memorized at waypoint sequencing.
[ 1R ] SPD ALT The field dedicated to SPEED or MACH is blank at the FROM waypoint
except at airport of departure. (V1 is displayed associated with runway
elevation).
Line 6 DEST,
UTC/TIME, DIST,
EFOB
DIST is the distance to the destination along the displayed flight plan.
EFOB is the estimated fuel on board at the destination. The sixth line is
permanent and is displayed in a white font once predictions are available,
except when a TMPY F-PLN is displayed or when an ALT CSTR is
entered (* CLB or DES*) prompt appears).
Note: The predicted altitude at a waypoint is related to the QNH below the transition altitude
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A330/A340机组操作手册 FLIGHT CREW OPERATING MANUAL FCOM 1(137)
