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opens with preselected speed. In descent, entry in this eld cannot be made. Pushing the Speed selector knob on FCU
reverts to managed speed guidance and blanks this eld.
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2L
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4L
A319/320/321
Systems Manual
Phoenix Simulation Software P 57
REV 01 SEQ 001 MCDU
PERF APPROACH page
2L
1L
3L
4L
5L
6L
2R
1R
3R
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6R
QNH: Entry eld for destination sea-level atmospheric pressure. Entry can be made either in hPa (for example 1003)
or in in Hg (29.92).
TEMP: Entry eld for destination temperature.
MAG WIND: Entry eld for destination magnetic wind direction and speed. Entry example is 15/270
TRANS ALT: Transition altitude for destination airport. When aircraft descends below this altitude, barometric reference
should be changed from STD to QNH and destination pressure selected on BARO panel. Transition altitude is called up
from database when destinatiom airport is entered on INIT page.
VAPP: The FMS computes this approach speed, using the formula Vapp = Vls + 5 +1/3•Headwind. The pilot can modify
this computed value. Clearing the eld reverts it to the computed speed.
FINAL: Selected landing runway is shown. The pilot cannot modify it through this eld.
MDA: Minimum descent altitude can be entered here. If DH is entered in 3R, the eld is blanked.
DH: Decision height can be entered here. If MDA is entered in 2R, the eld is blanked.
LDG CONF: Two elds at 4R and 5R list possible landing aps congurations, CONF 3 and FULL. Selected conguration
is shown in large font, and second conguration is in small font. Select desired conguration by pressing corresponding
LSK.
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2L
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5L
1R
2R
3R
4R
5R
The center column shows computed ap retraction, slat retraction, green dot speed, and Vls.
A319/320/321
Systems Manual
Phoenix Simulation Software P 58
REV 01 SEQ 001 MCDU
2L
1L
3L
4L
5L
6L
2R
1R
3R
4R
5R
6R
PERF GO AROUND page
THR RED/ACC: Thrust reduction and acceleration altitude. At thrust reduction altitude, the pilot retards thrust levers and
thrust is reduced from TO to CLB. At acceleration altitude the SRS pitch mode is replaced by CLB mode, and speed target
changes from V2+10 to climb speed. Both altitudes default to eld elevation plus 1500 feet.
ENG OUT ACC: Engine out acceleration altitude.
5L
5R
The center column shows computed Flap retraction, Slat retraction, and Green Dot speed.
A319/320/321
Systems Manual
Phoenix Simulation Software P 59
REV 01 SEQ 001 MCDU
PROG pages
Progress pages allow selecting of new cruise FL, monitoring optimum and maximum cruise ight levels, checking navigation
accuracy, and monitoring descent.
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6L
2R
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6R
PAGE TITLE: Shows current speed mode (ECON, selected SPD/MACH, EXPEDITE) and ight phase.
CRZ: Cruise ight level. Cruise FL can be changed by entering a new value here. Also, when ying at cruise FL, the
pilot can select a higher altitude in FCU altitude window and push ALT selector knob; this will automatically insert the
new selected cruise FL into the FMS.
OPT: The eld shows optimum ight level, based on gross weight, cost index and temperature.
REC MAX: Recommended maximum altitude.
VDEV: Field is displayed only during descent and approach. Vertical deviation from computed vertical prole is shown.
BRG/DIST TO: The pilot can enter any waypoint in the “TO” eld. After this, the “BRG/DIST” eld constantly shows
computed bearing and distance to this waypoint.
DIST: The two elds show required distance to land, following the routing of active ight plan, and direct distance to
destination airport.
ACCUR: The line displays estimated navigation accuracy, required accuracy for current ight phase, and accuracy level
(LOW or HIGH).
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6
A319/320/321
Systems Manual
Phoenix Simulation Software P 60
REV 01 SEQ 001 MCDU
DATA INDEX page
DATA INDEX page provides a menu which gives access to different pages concerning the navigation data. The index page is
displayed by pressing DATA key.
2L
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6L
2R
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6R
WAYPOINTS: lookup any waypoint in data base.
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PSS A319/A320/A321 Systems Manual 系统手册(22)
