FLIGHT PHASES
DESCENT 1
Part II: Chapter 6 - DESCENT
Contents
SWITCHING CONDITIONS ......................................... 3
NORMAL DESCENT ..................................................... 4
Selection of MCDU pages ............................................... 5
Speed Control .............................................................. 6
Managed speed ............................................................ 6
If a specific speed is required ......................................... 7
To resume managed speed ............................................ 7
Lateral guidance ........................................................... 8
If a specific heading or track is required........................... 8
To resume NAV mode.................................................... 8
Vertical guidance .......................................................... 9
Managed DESCENT mode (DES) ..................................... 9
Selected vertical modes (OP DES – V/S) .......................... 9
If HDG-TRK is selected ................................................ 10
Level-off.................................................................... 10
Typical vertical profile ................................................. 11
VARIATIONS............................................................ 12
Early Descent (Descent before T/D) .............................. 12
Late Descent.............................................................. 13
Expedite descent function ............................................ 14
To resume normal descent........................................... 14
CONSTRAINTS MANAGEMENT .................................. 15
6.5.
F-PLN SEQUENCING ................................................. 18
Clearing WPTs already passed individually...................... 20
Collapsing a group of WPTs .......................................... 21
Use of DIR TO RADIAL IN function ................................ 22
SEC F-PLN activation................................................... 25
Use of PERF DES page.............................................. 26
Use of PROG DESCENT page..................................... 27
CROSS REFERENCES ................................................ 28
TOO STEEP PATH AHEAD ............................................. 28
MORE DRAG............................................................... 28
Check APP selection .................................................... 28
Energy circle .............................................................. 28
AIRBUS A318/319/320/321
© THALES AVIONICS S.A.
J43126AA 00
Summary of Contents for FMGS
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