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detent, or
2. To Done: 30 s after landing, or
3. To Climb: When inserting a new CRZ FL.
GO-AROUND VAPP or current SPD,
whichever is greater.
Green Dot at ACC ALT
1. To Approach: Manual activation of the
approach phase, or
2. To Climb: Above acceleration altitude by
‐ Selecting ALTN, or
‐ inserting NEWDEST and CRZ FL
DONE / To preflight: When INIT or PERF key
depressed.
Note: During the preflight phase, the flight crew inserts the flight plan, which includes all data
needed for the flight.
During the Done phase, the FMGC erases the data entered for the flight. If the descent
or the approach phase is inadvertently activated (manual approach phase activation, for
example), the flight crew may reselect a CRZ FL on the PROG page to reactivate the CRZ
phase.
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
AUTO FLIGHT - FLIGHT MANAGEMENT
FLIGHT PLANNING - VERTICAL FUNCTIONS
A318/A319/A320/A321 FLEET DSC-22_20-30-20-05 P 6/12
FCOM 19 AUG 10
FLIGHT PHASES
Applicable to:
,
,
MSN,,,,
The vertical flight plan is divided into flight phases. For each phase, the FMGS computes the
optimum speed or Mach Profile. These flight phases are:
Preflight - Takeoff - Climb - Cruise - Descent - Approach - Go-Around - Done.
FLIGHT PHASES OPTIMUM SPEED PROFILE SWITCHING CONDITIONS
TO NEXT PHASE
PREFLIGHT / SRS takeoff mode engaged and N1 >
85 %(EPR ≥ 1.25) or Ground Speed >90 kt
TAKEOFF V2
(V2 + 10)
At acceleration altitude or by engagement of
another vertical mode.
CLIMB ECON CLB SPD / MACH Reaching cruise FL
CRUISE ECON CRZ MACH No step descent, and distance to destination
< 200 nm, or all engines operative and
selected altitude below Max [FL 200, highest
DES ALT CSTR]
DESCENT ECON DES MACH / SPD Overflying ‐ (DECEL) pseudo waypoint
with NAV (or LOC*/LOC) mode engaged
and altitude <7 200 ft AGL
‐ Manual activation of the approach phase.
APPROACH VAPP
(GS Min)
1. To Go-Around: When thrust levers at
TOGA detent, or
2. To Done: 30 s after landing, or
3. To Climb: When inserting a new CRZ FL.
GO-AROUND VAPP or current SPD,
whichever is greater.
Green Dot at ACC ALT
1. To Approach: Manual activation of the
approach phase, or
2. To Climb: Above acceleration altitude by
‐ Selecting ALTN, or
‐ inserting NEWDEST
DONE / To preflight: When INIT or PERF key
depressed.
Note: During the preflight phase, the flight crew inserts the flight plan, which includes all data
needed for the flight.
During the Done phase, the FMGC erases the data entered for the flight. If the descent
or the approach phase is inadvertently activated (manual approach phase activation, for
example), the flight crew may reselect a CRZ FL on the PROG page to reactivate the CRZ
phase.
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
AUTO FLIGHT - FLIGHT MANAGEMENT
FLIGHT PLANNING - VERTICAL FUNCTIONS
A318/A319/A320/A321 FLEET DSC-22_20-30-20-05 P 7/12
FCOM 19 AUG 10
VERTICAL REVISION
Applicable to:
The flight crew uses vertical revisions to enter or modify:
The speed ‐ limit in the climb and descent phases
‐ An altitude or speed constraint at the revised waypoint
‐ A step climb or a step descent
‐ New wind data
‐ A time constraint �� .
The vertical revision page is accessed by pressing a right hand select key of the flight plan page.
VERTICAL REVISION
Applicable to:
The flight crew uses vertical revisions to enter or modify:
‐ The speed limit in the climb and descent phases
‐ An altitude or speed constraint at the revised waypoint
‐ A step climb or a step descent
‐ New wind data
‐ A time constraint.
The vertical revision page is accessed by pressing a right hand select key of the flight plan page.
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
AUTO FLIGHT - FLIGHT MANAGEMENT
FLIGHT PLANNING - VERTICAL FUNCTIONS
A318/A319/A320/A321 FLEET DSC-22_20-30-20-05 P 8/12
FCOM 19 AUG 10
VERTICAL REVISION
Applicable to:
,
,
MSN,,
4538,,
The flight crew uses vertical revisions to enter or modify:
‐ The speed limit in the climb and descent phases
‐ An altitude or speed constraint at the revised waypoint
‐ A time constraint (RTA)
‐ A Constant Mach value to be kept in cruise
‐ A step climb or a step descent
‐ New wind data.
The vertical revision page is accessed by pressing a right hand select key of the flight plan page.
　
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