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The ADIRU sends this ADR data to the GPWC:
* Computed airspeed
* Altitude rate
* Corrected baro altitude
* Uncorrected baro altitude
* True airspeed.
The GPWC uses this data to detect unsafe flight conditions.
SMYD 1
The ADIRU sends this data to SMYD 1:
* Mach
* True airspeed
* Computed airspeed
* Impact pressure.
The SMYD 1 uses this data for stall management and yaw
damper calculations.
CPC
The ADIRU sends this ADR data to cabin pressure controller
(CPC) 1 and 2 to calculate pressurization values:
* Corrected baro altitude
* Uncorrected baro altitude
* Static pressure.
WXR R/T
The ADIRU sends true airspeed data to the WXR R/T for
predictive windshear calculations.
DIU
The ADIRU sends airspeed and altitude data to the passenger
entertainment system DIU for display.
ADIRS - LEFT AIR DATA OUTPUTS
EFFECTIVITY
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FMCS
The ADIRU sends this ADR data to the FMCS:
* Computed airspeed
* True airspeed
* Mach
* Corrected baro altitude
* Uncorrected baro altitude
* Total air temperature
* Static air temperature.
The FMCS uses this data for performance calculations.
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EFFECTIVITY
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ADIRS - LEFT AIR DATA OUTPUTS
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EFFECTIVITY
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General
The right ADIRU supplies air data reference (ADR) data to many
systems and components. ADR data is on ARINC 429 data
buses. The data on each bus is the same. One data bus goes
from the ADR section of the ADIRU to the IR section. These
components and systems receive ADR data from the right
ADIRU:
* Autothrottle (A/T) computer
* Display electronics unit (DEU) 1 and 2
* Flight control computer (FCC) B
* Air traffic control (ATC) 1 and 2
* Stall management yaw damper (SMYD) 2
* Cabin pressure controller 1 and 2
* Weather radar receiver transmitter (WXR R/T)
* Flight management computer (FMC) 1.
A/T Computer
The ADIRU sends this ADR data to the A/T computer for throttle
command calculations:
* Computed airspeed
* True airspeed
* Maximum operating speed
* Mach
* Maximum operating mach
* Uncorrected barometric altitude
* Corrected barometric altitude
* Static air temperature
* Total air temperature
* Static pressure
* Angle of attack.
DEU
The ADIRU sends this ADR data to the DEUs:
* Computed airspeed
* Mach
* True airspeed
* Total pressure
* Corrected barometric altitude
* Uncorrected barometric altitude
* Total air temperature
* Air data discretes.
The DEUs use this data for display information and sends it on
to other systems such as the electronic engine control (EEC).
FCC B
The ADIRU sends this ADR data to FCC B:
* Computed airspeed
* True airspeed
* Corrected baro altitude
* Uncorrected barometric altitude
* Altitude rate
* Static pressure
* Mach.
ADIRS - RIGHT AIR DATA OUTPUTS
EFFECTIVITY
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FCC B uses this information for automatic flight control mode
calculations.
ATC Transponders
The ADIRU sends uncorrected baro altitude data to the ATC
transponders for altitude reporting.
SMYD 2
The ADIRU sends this data to SMYD 2:
* Mach
* True airspeed
* Computed airspeed
* Impact pressure.
The SMYD 2 uses this data for stall management and yaw
damper calculations.
CPC
The ADIRU sends this ADR data to cabin pressure controller
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