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5L
6L
2R
1R
3R
4R
5R
6R
PERF TAKEOFF page
This page is displayed when pressing PERF key during preight.
V1, Vr, V2: Takeoff V speeds. Speeds are NOT automatically computed, and pilot entry is required as indicated by amber
boxes. Airbus pilots use performance tables to determine these speeds. You can, however, make the FMS compute the
V speeds by clicking the line select keys with right mouse buttons.
TRANS ALT: Origin airport transition altitude. The barometric reference should be switched to STD when climbing above
this altitude. Transition altitude is called up from database when origin airport is entered on INIT 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.
UPLINK TO DATA: Data link is not modelled.
RWY: Selected departure runway is displayed here. Runway entry cannot be performed through this eld
TO SHIFT: Distance between takeoff position and runway threshold, used to update FMS navigation computation. Entry
is not required.
FLAPS/THS: Takeoff aps and trimmable horizontal stabilizer settings for takeoff. This eld allows entry and is used
for reminder only.
FLEX TO TEMP: Assumed temperature for FLEX takeoff thrust calculation is entered here, if derated takeoff is desired.
Entering high assumed temperature will reduce the takeoff thrust.
ENG OUT ACC: Engine out acceleration altitude.
1L
2L
3L
4L
5L
6L
1R
2R
3R
4R
5R
The center column shows computed Flap retraction, Slat retraction, and Green Dot speed.
A319/320/321
Systems Manual
Phoenix Simulation Software P 55
REV 01 SEQ 001 MCDU
PERF CLIMB page
2L
1L
3L
4L
5L
6L
2R
1R
3R
4R
5R
6R
ACT MODE: Active target speed (ECON, selected SPD/MACH, or EXPEDITE). The pilot cannot modify it through this
eld.
CI: Cost Index, as entered on INIT page. Field accepts entry of new cost index.
ECON: ECON is the optimum speed considering cost index, altitude, and gross weight. Speed limits and speed
constraints, if any, may prevent the aircraft from ying at the ECON speed.
SPD/MACH: If CLIMB phase is not yet active, the pilot can preselect climb speed by entry in this eld. When CLIMB
phase becomes active, if speed was preselected, the speed guidance changes to Selected, and FCU speed opens with
preselected speed. In climb, entry in this eld cannot be made. Pushing the Speed selector knob on FCU reverts to
managed speed guidance and blanks this eld.
1L
2L
3L
4L
2L
1L
3L
4L
5L
6L
2R
1R
3R
4R
5R
6R
PERF CRUISE page
ACT MODE: Active target speed (ECON or selected SPD/MACH). The pilot cannot modify it through this eld.
CI: Cost Index, as entered on INIT page. Field accepts entry of new cost index.
ECON: ECON is the optimum speed considering cost index, altitude, and gross weight. Speed limits and speed
constraints, if any, may prevent the aircraft from ying at the ECON speed.
SPD/MACH: If CRUISE phase is not yet active, the pilot can preselect climb speed by entry in this eld. When CRUISE
phase becomes active, if speed was preselected, the speed guidance changes to Selected, and FCU speed opens with
preselected speed. In cruise, entry in this eld cannot be made. Pushing the Speed selector knob on FCU reverts to
managed speed guidance and blanks this eld.
1L
2L
3L
4L
A319/320/321
Systems Manual
Phoenix Simulation Software P 56
REV 01 SEQ 001 MCDU
PERF DESCENT page
2L
1L
3L
4L
5L
6L
2R
1R
3R
4R
5R
6R
ACT MODE: Active target speed (ECON, selected SPD/MACH, or EXPEDITE). The pilot cannot modify it through this
eld.
CI: Cost Index, as entered on INIT page. Field accepts entry of new cost index.
ECON: ECON is the optimum speed considering cost index, altitude, and gross weight. Speed limits and speed
constraints, if any, may prevent the aircraft from ying at the ECON speed.
SPD/MACH: If DESCENT phase is not yet active, the pilot can preselect climb speed by entry in this eld. When
DESCENT phase becomes active, if speed was preselected, the speed guidance changes to Selected, and FCU speed
　
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