User's Manual Part 2

T
2
CAS / Part No. 9000000
SYSTEM DESCRIPTION AND INSTALLATION MANUAL
34-43-20
15 Feb 2003
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4--82
The minimum External Sensor input accuracy accepted for Selected Decision Height
is 1 foot.
(17) Minimum Descent Altitude
The T
2
CAS Minimum Descent Altitude input parameter is updated using one of the
following LRU data sour ces: EFIS, MCP or FMS.
The minimum External Sensor input accuracy accepted for Minimum Descent Altitude
is 1 foot.
(18) Body Longitudinal Acceleration (Digital/Analog)
The Body Longitudinal Acceleration input parameter is only used on installations
where T
2
CAS is performing the RWS function.
The T
2
CAS Body Longitudinal Acceleration input parameter is updated from one of
the following Inertial Reference sources: ADIRS, IRS or AHRS.
The minimum External Sensor input accuracy accepted for Body Longitudinal
Acceleration is 0.01 G with 95% confidence.
(19) Body Normal Acceleration (Digital/Analog)
The Body Normal Acceleration input parameter is only used on installations where
T
2
CAS is performing the RWS function.
The T
2
CAS Body Normal Acceleration input parameter is updated from one of the
following Inertial Reference sources: ADIRS, IRS or AHRS.
The minimum External Sensor input accuracy accepted is 0.01 G with 95%
confidence.
(20) Pitch Angle
The T
2
CAS Pitch Angle input parameter is updated from one of the following Inertial
Reference sources: GPIRS, ADIRS, IRS or AHRS.
For T
2
CAS equipped with Windshear, the minimum External Sensor input accuracy
accepted for Pitch Angle is 0.5 Degrees with 95% confidence.
(21) Flap Angle
The T
2
CAS Flap Angle input parameter is updated with valid Flap Angle data from
one of the following L RUs: Flap Slat Electronic/Control Unit, Digital Stall Warning
Computer (DSWC), Analog or Discrete.
The minimum External Sensor input accuracy accepted for Flap Angle is 2.0 Degrees
with 95% confidence or the Discrete value setting.
NOTE: Most aircraft types have discrete flap settings, where a range of angles or
voltages map into discrete flap settings. For example, 747--1/2/3 has 7 flap
settings with 40--50 degrees range per setting.