Thales FMGS - Table of Contents

FLIGHT PHASES
DESCENT 1
Part II: Chapter 6 - DESCENT
Contents
6.1. SWITCHING CONDITIONS .........................................3
6.2. 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
6.3. VARIATIONS............................................................12
 Early Descent (Descent before T/D) .............................. 12
 Late Descent.............................................................. 13
 Expedite descent function............................................ 14
 To resume normal descent........................................... 14
6.4. 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
6.6. Use of PERF DES page..............................................26
6.7. Use of PROG DESCENT page.....................................27
6.8. 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.
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