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FCOM 19 AUG 10
When the FMGC operates in the vertical managed mode, this symbol is magenta if it
represents a flight plan altitude constraint that the FMGC will follow. If the target altitude or
flight level is on the scale, the symbol is displayed and the numerical value appears inside the
symbol.
If it is off the scale, the symbol is not displayed, and the numerical value appears above or
underneath the scale.
(4) Barometric Reference
The display shows “STD” or it shows “QNH” or "QFE" and the numerical setting in
hectoPascals or inches of mercury.
It pulses when the selection made by the pilot is not correct (STD not selected above transition
altitude in climb or STD still selected in approach below transition level or 2 500 ft radio height if
transition level is not available).
METRIC ALTITUDE INDICATION
If metric reference is selected on the FCU two additional symbols are displayed on PFD.
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 28/68
FCOM 19 AUG 10
(1) Target altitude or selected flight level (magenta or blue)
The display shows the selected altitude value in meters.
(2) Altitude indication (green)
The display shows the actual aircraft altitude value in meters.
ALTITUDE (CONT'D)
Applicable to:
(1) Radio Height
A value appears, when the aircraft is lower than 2 500 ft.
If a DH has been entered, ‐ the radio height appears :
• In green, when DH + 100 ft < RA < 2 500 ft
• In amber, when RA < DH + 100 ft
If “NO” is entered as the DH on the MCDU APPROACH page, 0 ft becomes a default value.
When the aircraft reaches the decision height selected on the MCDU, DH letters flash amber
for 3 s, then remain amber above the radio height indication.
‐ If no DH has been entered, or if both FMGCs fail, the radio height appears :
• In green, when 400 ft < RA < 2 500 ft
• In amber, when RA ≤ 400 ft
The radio altitude indication changes every 10 ft down to 50 ft, then every 5 ft down to 10 ft,
then every foot.
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 29/68
FCOM 19 AUG 10
(2) Landing Elevation (blue)
The horizontal bar on the altitude scale shows the landing elevation at the flight-planned
destination.
It is displayed :
‐ during flight phases 7 and 8 and
‐ if the QNH reference mode is selected.
(3) Ground reference
A red ribbon on the right of the altitude scale represents the field elevation. This ribbon, which
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.
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 30/68
FCOM 19 AUG 10
ALTITUDE (CONT'D)
Applicable to:
,
,
MSN,,,,
(1) Radio Height
A value appears, when the aircraft is lower than 2 500 ft.
If a DH has been entered, ‐ the radio height appears :
• In green, when DH + 100 ft < RA < 2 500 ft
• In amber, when RA < DH + 100 ft
If “NO” is entered as the DH on the MCDU APPROACH page, 0 ft becomes a default value.
When the aircraft reaches the decision height selected on the MCDU, DH letters flash amber
for 9 s, then remain amber above the radio height indication.
‐ If no DH has been entered, or if both FMGCs fail, the radio height appears :
• In green, when 400 ft < RA < 2 500 ft
• In amber, when RA ≤ 400 ft
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 31/68
FCOM 19 AUG 10
The radio altitude indication changes every 10 ft down to 50 ft, then every 5 ft down to 10 ft,
then every foot.
(2) Landing Elevation (blue)
The top of the brown surface on the altitude scale represents the landing elevation at the
flight-planned destination.
It is displayed :
‐ during flight phases 7 and 8 and
‐ if the STD reference mode is not selected.
(3) Ground reference
A red ribbon on the right of the altitude scale represents the field elevation. This ribbon, which
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A320机组操作手册FLIGHT CREW OPERATING MANUAL 3(109)
