Systems Guide

A318/A319/A320/A321
Professional
SYSTEMS
Systems guide
Vol
4
04-03-2
11 July 2018
CONTENTS
INTRODUCTION .............................................................................................................................................. 5
AIRCRAFT GENERAL ........................................................................................................................................ 5
AIR CONDITIONING & PNEUMATICS .............................................................................................................. 5
PRESSURIZATION ........................................................................................................................................ 7
VENTILATION .............................................................................................................................................. 8
APU ................................................................................................................................................................. 8
GENERAL..................................................................................................................................................... 8
SYSTEM COMPONENTS .............................................................................................................................. 8
AIR BLEED SYSTEM ..................................................................................................................................... 9
CONTROLS AND DISPLAYS .......................................................................................................................... 9
AUTOFLIGHT ................................................................................................................................................... 9
OVERVIEW .................................................................................................................................................. 9
PILOT INTERFACES .................................................................................................................................... 10
FLIGHT CONTROL UNIT .........................................................................................................................10
MULTIFUNCTION CONTROL AND DISPLAY UNIT ...................................................................................11
SIDESTICK CONTROLLER ........................................................................................................................11
THRUST LEVERS .....................................................................................................................................11
FLIGHT PHASES ......................................................................................................................................... 12
PERFORMANCE......................................................................................................................................... 12
AUTOPILOTS ............................................................................................................................................. 12
ENGAGEMENT .......................................................................................................................................12
DISENGAGEMENT .................................................................................................................................12
AUTOPILOT & SPEED BRAKES ...............................................................................................................13
AUTOTHRUST ........................................................................................................................................... 13
AUTOTHRUST ARMING STATUS ............................................................................................................13
AUTOTHRUST ACTIVE STATUS ..............................................................................................................13
AUTOTHRUST DEACTIVATION ...............................................................................................................13
AUTOTHRUST MODES ...........................................................................................................................14
AUTOTHRUST/FLIGHT DIRECTOR/AUTOPILOT......................................................................................14
ALPHA FLOOR ........................................................................................................................................15
FLIGHT AUGMENTATION COMPUTERS .................................................................................................... 15
FLIGHT ENVELOPE .................................................................................................................................15
WINDSHEAR ..........................................................................................................................................15
LOW ENERGY WARNING .......................................................................................................................15
FLIGHT GUIDANCE .................................................................................................................................... 16
LATERAL GUIDANCE MODES .................................................................................................................... 16
SELECTED HEADING (OR TRACK) MODE ...............................................................................................16
MANAGED NAVIGATION MODE............................................................................................................16
LOCALIZER LATERAL MODE ...................................................................................................................16
VERTICAL MODES ..................................................................................................................................... 17
CLIMB ....................................................................................................................................................17
OPEN CLIMB ..........................................................................................................................................18
DESCENT ................................................................................................................................................... 19
OPEN DESCENT .....................................................................................................................................20
ALTITUDE ACQUIRE ...............................................................................................................................20
ALTITUDE HOLD ....................................................................................................................................21
VERTICAL SPEED – FLIGHT PATH ANGLE ...............................................................................................21
COMMON MODES .................................................................................................................................... 22
TAKE OFF: SRS .......................................................................................................................................22
TAKE OFF: RUNWAY ..............................................................................................................................22
APPROACH: ILS APPROACH ...................................................................................................................23
APPROACH: NON ILS APPROACH ..........................................................................................................24
GO AROUND..........................................................................................................................................25
MANAGED MODE VERSUS SELECTED MODE ........................................................................................... 26
MANAGED SPEED ..................................................................................................................................26