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MAINTENANCE
Honeywell !W%!h.
Dimensions (maximum):
Length (including hand"
Width ................
Height ...............
e) .......................
15.76
in. (400.3
mm)
...... .. ............... .. .
3.51
in. (89.15
mm)
...... ................. .. .
7.62
in. (193.5
mm)
Weight (maximum) ........................................ 9.9
lb (4.5 kg)
Power Requirements .................................... 28 V dc, 40 WMax
Mating Connector:
J1 ........................................ DPX2MA-A106P-A1 O6P-33B-OO31
Mating Pneumatic Connectors:
Pitot (straight) .......................................... 40007-1B24*
Static (straight) ......................................... 40007-1A26*
Pitot (90° elbow) ........................................ 40007-1B24E*
Static (90° elbow) ....................................... 40007-1A26E*
*All part numbers are American Safety Flight Systems.
Mounting ................................ Tray, Honeywel1 Part No. 7007974
AZ-81O Digital Air Data Computer
Leading Particulars
Table 3-1
The AZ-81O Digital Air Data Computer (DADC) is a microprocessor-based digital
computer which accepts both digital and analog inputs, performs digital
computations, and supplies both digital and analog outputs.
It receives
pitot-static pressures and total air temperature inputs for computing the
standard air data functions. The air data equations are solved directly
using a 16/32-bit arithmetic microprocessor under the control of an 8-bit
general purpose microprocessor. The DADC provides outputs to the electronic
display system, transponder, flight recorder, flight guidance computer, as
well as other elements of the system, such as fault warning computers and
inertial reference system (IRS). Angle of attack inputs have been
incorporated, and computed AOA outputs are provided. The DADC performs
altitude preselect operation and alerting functions. The DADC also uses
angle of attack to process static source error correction for the standard
air data outputs.
Analog and discrete outputs are shown on Figure 3-2.
Digital outputs
transmitted on the ASCB are listed in Table 3-2, and ARINC 429 outputs are
listed in Table 3-3.
22-14-00
Page 131
Aug 15/91
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