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is the sum of the current target and the turn action value. The value remains displayed 45 s
before the dashes reappear. This rule does not apply to the ALT knob/window.
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
AUTO FLIGHT - GENERAL
PILOT INTERFACE - FCU
A330/A340 FLEET DSC-22_10-40-20 P 4/8
FCOM 19 AUG 10
SPEED/MACH CONTROL AREA
Applicable to: ALL
SPD/MACH knob
Display range : Between 100 and 399 kt for speed, between 0.10 and 0.99 for Mach number.
One rotation of the knob corresponds to approximately 30 kt , or M 0.3.
SPD/MACH pb
Press this pushbutton to change the SPD target to the corresponding MACH target and vice versa.
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
AUTO FLIGHT - GENERAL
PILOT INTERFACE - FCU
A330/A340 FLEET DSC-22_10-40-20 P 5/8
FCOM 19 AUG 10
LATERAL CONTROL AREA
Applicable to: ALL
HDG/TRK knob
Display range : between 0 ° and 359 °.
One rotation of the knob corresponds to 30 ° (1 ° per click).
LOC pb
Press this pushbutton to arm, engage, or disengage the LOC mode.
HDG V/S - TRK FPA pb
The flight crew uses this pushbutton to select HDG (associated with V/S) or TRK (associated with
FPA). Pushing it:
Displays the Flight Path Vector (FPV) on the Primary Flight Display (PFD) or deletes it.‐
On the PFD, changes the FD crossbar display (with the aircraft attitude as its reference) to the‐
aircraft Flight Path Director (with the flight path vector as its reference) and vice versa.
Changes heading reference into track reference in the HDG/TRK window and vice versa.‐
Changes vertical speed reference target into flight path angle reference target in the V/S‐-FPA
window and vice versa.
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
AUTO FLIGHT - GENERAL
PILOT INTERFACE - FCU
A330/A340 FLEET DSC-22_10-40-20 P 6/8
FCOM 19 AUG 10
AP-A/THR CONTROL AREA
Applicable to: ALL
AP1 pb AND AP2 pb
The flight crew uses these pushbuttons to engage or disengage the autopilots. The buttons
illuminate green when the autopilot is engaged.
A/THR pb
The flight crew uses this pushbutton to arm, activate, or disconnect the autothrust (A/THR). This
button illuminates green if the A/THR is armed or active.
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
AUTO FLIGHT - GENERAL
PILOT INTERFACE - FCU
A330/A340 FLEET DSC-22_10-40-20 P 7/8
FCOM 19 AUG 10
VERTICAL CONTROL AREA
Applicable to: ALL
The FCU altitude window always displays a target value selected by the flight crew. It never displays
dashes.
ALTITUDE knob (INNER AND OUTER)
Display range : 100 to 49 000 ft
The outer knob has two positions : 100 and 1000.‐
The inner knob sets the altitude in the FCU window, in increments of 100 or 1 000 ft , depending‐
upon the position of the outer knob.
ALT pb
The flight crew uses this pushbutton to command an immediate level-off.
METRIC ALT pb
The flight crew uses this pushbutton to display the target altitude (either the FCU-selected altitude,
or the FM altitude constraint) and the current altitude in meters on the PFD.
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
AUTO FLIGHT - GENERAL
PILOT INTERFACE - FCU
A330/A340 FLEET DSC-22_10-40-20 P 8/8
FCOM 19 AUG 10
V/S or FPA knob
Range
(V/S)
: – 6 000 to + 6 000 ft/min
2 clicks = 100 ft/min
If the flight crew turns the knob slowly, each click equals 100 ft/min
Range
(FPA)
: – 9.9 ° to + 9.9 °
1 click = 0.1 °
The flight crew turns this knob to set the value of vertical speed (V/S) or flight path angle (FPA)
to be displayed in the V/S or FPA window (They choose which, V/S or FPA, is to be displayed by
pushing the HDG V/S - TRK FPA pb).
One rotation of the knob corresponds to 32 clicks. One complete rotation sets:
FPA = 3.2 °
V/S = 1 600 ft/min
APPR pb
This pushbutton arms, disarms, engages, or disengages the approach modes:
LOC and G/S modes if an ILS approach is selected in the active F‐-PLN.
APP NAV‐-FINAL modes, if a non precision approach is selected in the active F-PLN.
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
AUTO FLIGHT - GENERAL
PILOT INTERFACE - RNP PUSHBUTTON
A330/A340 FLEET DSC-22_10-40-25 P 1/2
FCOM 19 AUG 10
RNP PUSHBUTTON
Applicable to:
(1) RNP pb
The RNP pb is located on the left side of the ECAM. The flight crew uses the RNP pb to control
the lateral deviation (L/DEV) scale display on the PFD:
　
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