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is driven by the radio altimeter signal, is displayed below 570 ft.
It moves up, as does the lower line of the attitude sphere, with the altitude scale as the aircraft
descends. When the aircraft has touched down, the top of this ribbon is at the middle of the
altitude window.
VERTICAL SPEED
Applicable to:
The displayed vertical speed information is normally based on both inertial and barometric data. If
inertial data is not available, it is automatically replaced by barometric information.
In this case, the window around the numerical value becomes amber.
(1) Analog pointer
This pointer, which is normally in green, points to a white vertical speed scale, displayed on a
grey background and graduated at intervals of 500 ft/min.
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
INDICATING / RECORDING SYSTEMS
INDICATIONS ON PFD
A318/A319/A320/A321 FLEET DSC-31-40 P 32/68
FCOM 19 AUG 10
If the V/S is greater than 6 000 ft/min, the pointer stays at the end of the scale.
(2) Digital indication
This number, normally in green, is the vertical speed in hundreds of feet per minute.
It disappears, if the vertical speed is less than 200 ft/min.
The analog pointer and the digital indication become amber, if :
• V/S is greater than 6 000 ft/min, (climb or descent)
• V/S is greater than 2 000 ft/min, during descent when 1 000 ft < RA < 2 500 ft, or
• V/S is greater than 1 200 ft/min, during descent and RA < 1 000 ft.
Note: For TCAS, Refer to DSC-34-80-20 PFD INDICATIONS.
VERTICAL SPEED
Applicable to:
,
,
MSN,,,,
The displayed vertical speed information is normally based on both inertial and barometric data. If
inertial data is not available, it is automatically replaced by barometric information.
In this case, the window around the numerical value becomes amber.
(1) Analog pointer
This pointer, which is normally in green, points to a white vertical speed scale, displayed on a
grey background and graduated at intervals of 500 ft/min.
If the V/S is greater than 6 000 ft/min, the pointer stays at the end of the scale.
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
INDICATING / RECORDING SYSTEMS
INDICATIONS ON PFD
A318/A319/A320/A321 FLEET DSC-31-40 P 33/68
FCOM 19 AUG 10
(2) Digital indication
This number, normally in green, is the vertical speed in hundreds of feet per minute.
It disappears, if the vertical speed is less than 200 ft/min.
The analog pointer and the digital indication become amber, if :
• V/S is greater than 6 000 ft/min, (climb or descent)
• V/S is greater than 2 000 ft/min, during descent when 1 000 ft < RA < 2 500 ft, or
• V/S is greater than 1 200 ft/min, during descent and RA < 1 000 ft.
Note: For TCAS, Refer to DSC-34-80-20 PFD INDICATIONS.
HEADING
Applicable to:
(1) Heading Reference Line and Scale
A white scale on a grey background moves in front of a fixed yellow reference line to indicate
the actual magnetic heading.
“TRU” appears, when the display indicates the true heading, rather than the magnetic heading
(latitude above 73 ° North or below 60 ° South).
(2) Selected Heading or Track Index (blue)
This pointer is in blue, and indicates the heading or track displayed on the FCU HDG-TRK
window.
The index is replaced by digits on the right or left side of the scale, when the selected value is
off the scale.
If the FD pushbutton is OFF, a second heading/track symbol appears on the horizon line, and
markers are displayed every 10 °.
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
INDICATING / RECORDING SYSTEMS
INDICATIONS ON PFD
A318/A319/A320/A321 FLEET DSC-31-40 P 34/68
FCOM 19 AUG 10
(3) Actual Track Symbol
This symbol is a small green diamond.
HEADING
Applicable to:
,
,
MSN,,,,
(1) Heading Reference Line and Scale
A white scale on a grey background moves in front of a fixed yellow reference line to indicate
the actual magnetic heading.
“TRUE” appears, when the display indicates the true heading, rather than the magnetic
heading (latitude above 73 ° North or below 60 ° South).
(2) Selected Heading or Track Index (blue)
This pointer is in blue, and indicates the heading or track displayed on the FCU HDG-TRK
window.
The index is replaced by digits on the right or left side of the scale, when the selected value is
off the scale.
If the FD pushbutton is OFF, a second heading/track symbol appears on the horizon line, and
markers are displayed every 10 °.
　
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