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not display the weather radar image, in order to limit power consumption and prevent a DU
overheat. Any additional increase in temperature will lead to a complete cut off of the power
supply to this display unit.
GENERAL
Applicable to: ,
There are six different displays (five display navigation information, and one displays primary engine
parameters) :
‐ ROSE LS
‐ ROSE VOR
‐ ROSE NAV
‐ ARC
‐ PLAN
‐ ENG (standby page)
The Navigation Display (ND) can provide a weather radar image in all modes, except PLAN.
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
INDICATING/RECORDING
INDICATIONS ON ND
A330/A340 FLEET DSC-31-45 P 2/30
FCOM 19 AUG 10
ROSE MODES
Applicable to:
(1) Aircraft symbol (yellow)
Fixed and centered in the display, this symbol points to the yellow lubber line.
(2) Selected heading or track (blue)
This pointer shows the heading or track indicated on the FCU's HDG TRK counter.
(3) Actual aircraft track (green)
This symbol is a small green diamond.
(4) Ground speed and true air speed (green)
ADIRS furnishes these speeds.
(5) Aircraft heading
The fixed yellow lubber line points to the aircraft's magnetic heading on the moving white
compass rose. Small white triangles are fixed, at 45 ° intervals on the circumference of the
compass rose.
At latitudes above 82 ° North or 60 ° South (or when entering the north magnetic polar region,
latitude 73 ° N and longitude between 120 ° W and 90 ° W), the ADIRUs replace the magnetic
heading with true heading on the EFIS and DDRMI.
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
INDICATING/RECORDING
INDICATIONS ON ND
A330/A340 FLEET DSC-31-45 P 3/30
FCOM 19 AUG 10
When the aircraft is close to these regions (- 0.5 ° away), the ADIRU causes the “SELECT
TRUE REF” to appear on the ND. When the crew selects TRU, “TRU” appears in blue above
the heading scale.
TRU (blue) :
This appears on the ND when the compass is in the true heading configuration. The message
flashes for 9 s, or until the slats are extended, then it remains steady.
Grid track (green) :
The ND displays the grid track in numerical form, when the switch is in true reference and the
latitude is above 65 ° N or S.
(6) Wind direction and speed
ADIRS provides the wind direction and speed. The digital direction reflects the true north
reference, and the analog direction (indicated by the green arrow) reflects the north reference
that is in use. The green arrow only appears, if the wind speed is above two knots and the true
airspeed is above 100 kt.
If the display does not receive either wind speed or direction, dashes replace the numbers on
the display.
(7) Bearing pointer
The ND displays the bearing pointer when bearing data is available. The pointer is :
‐ Green for ADF
‐ White for VOR.
If ROSE NAV or ARC mode is selected, and the computer detects a mismatch between the
aircraft and the VOR reference, the bearing pointer appears in magenta. The VOR bearings are
true bearings, having been corrected with the magnetic variation of the actual aircraft position
(See also the FMGS PILOT’S GUIDE – POLAR NAVIGATION, Refer to DSC-22_20-60-130
GENERAL).
If reception of a beacon ceases, or if the receiver fails, the associated bearing pointer
disappears.
(8) Chronometer indication (white)
These numbers appear when the onside chronometer is started.
They display the elapsed time.
The indication is in minutes and seconds from 0 to 59 min 59 s, and in hours and minutes from
1 h to 99 h 59 min. (Seconds are not displayed beyond 59 min 59 s).
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
INDICATING/RECORDING
INDICATIONS ON ND
A330/A340 FLEET DSC-31-45 P 4/30
FCOM 19 AUG 10
(9) Navaids
When the ADF-OFF-VOR selector on either the pilot's or co-pilot's EFIS control panel is set to
ADF or VOR, the onside ND displays the following characteristics of the corresponding navaid
in white for VOR, or in green for ADF (left side for receiver 1 and right side for receiver 2) :
‐ Type of navaid (ADF or VOR) ;
‐ Shape and color of the associated bearing pointer (if the bearing pointer is in view);
‐ Navaid identification (or frequency by default) ;
‐ DME distance, if a DME is collocated with the selected VOR ADF, and the DME distance are
never displayed at the same time.
‐ Mode of tuning :
• M for a navaid manually tuned by the pilot via the MCDU (underlined and dimmed),
• R for a navaid tuned from an RMP (Radio Management Panel) (underlined and dimmed),
　
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