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┃      A~7-~'M" A321             ┃                              ┃          ┃          ┃
┃   FLIGHT CREW OPERATING MANUAL ┃                              ┃          ┃          ┃
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Whenever a flight augmentation computer (FAC) detects windshear conditions, it triggers
a warning :
- "WINDSHEAR" in red on both PFDs (for at least 15 seconds)
- an aural warning, "windshear", repeated three times
The windshear detection function is operative during takeoff and during approach, as
follows:
- at takeoff, from lift-off up to 1300 feet
- during approach, from 1300 feet to 50 feet
In both situations, the aircraft must be in configuration 1, 2, 3 or FULL.
WINDSHEAR DETECTION PRINCIPLES
The FACs generate the windshear warning whenever the predicted energy level for the
aircraft falls below a predetermined threshold.
In computing this energy level prediction, the FACs use data from different sources. From
ADIRS comes data such as vertical speed, air and ground speeds and slope ; from other
sources come such derived parameters as total slope, longitudinal wind gradient, and
vertical wind.
The FACs express this energy level as an angle of attack and compare it with an
angle-of-attack threshold above which windshear conditions are most likely and pilot action
is required.
GUIDANCE
In windshear conditions, flight guidance acts on specially adapted FD pitch orders received
from the speed reference system (SRS). The pilot must set go around thrust immediately
(which also triggers the FD SRS mode), and follow the pitch order to execute the optimum
escape maneuver.
FAC ENGAGEMENT
See 1.27 FLIGHT CONTROL CHAPTER
RUDDER TRIM OPERATION
See 1.27 FLIGHT CONTROL CHAPTER
CCM ALL
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┃I  -~ A318                      ┃  AUTO FLIGHT   ┃1.22.45     P 1       ┃
┃  .-,,.8, ,, ~e~ A319           ┃                ┃                      ┃
┃                                ┃                ┣━━━━━┳━━━━━┫
┃ Lli,~ A320                     ┃                ┃SEQ 100 I ┃I REV 24  ┃
┃      A~7-~'M" A321             ┃ACARS INTERFACE ┃          ┃          ┃
┃   FLIGHT CREW OPERATING MANUAL ┃                ┃          ┃          ┃
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The FMS ACARS function gives an interface between a ground station and one onboard
FMGC, allowing data transmission between these two computers via the ACARS
Management Unit.
Two different sets of message can be exchanged :
UPLINK messages from the ground station. They consist in reception of data requested or
directly sent to the crew.
DOWNLINK messages from the FMGC (master). They consist in reports or requests sent
to the ground station.
The FMGS/ACARS interface enables the following ACARS capabilities.
- F-PLN initialization (flight plan and performance data)
- Takeoff data
- Wind data
　
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本文鏈接地址：AIRBUS A320 Flight Crew Operating Manual2(97)