Cirrus Design Section 7
SR22T Airplane and Systems Description
P/N 13772-003 7-79
Traffic Advisory System
The Traffic Advisory System (TAS) advises the pilot of transponder-
equipped airplane that may pose a collision threat. TAS information is
displayed on the MFD and indicates the relative range, bearing, and
altitude of intruder airplane. The Traffic Advisory System consists of a
Transmitter Receiver Computer under the LH cockpit seat, and two
directional antennas installed on the airplane exterior. The system
utilizes inputs from the secondary Integrated Avionics Units via the
primary Air Data Computer and is controlled via the MFD or Flight
Management System Keyboard.
28 VDC for Traffic Advisory System operation is supplied through the
5-amp TRAFFIC circuit breaker on AVIONICS BUS. Refer to the
Perspective Integrated Avionics System Pilot’s Guide for a general
description of the system and its operating modes.
Weather Information System
The Weather Information System detects electrical discharges
associated with thunderstorms and displays the activity on the MFD.
The system consists of an antenna located on top of the fuselage and
a processor unit mounted under the aft baggage floor. The antenna
detects the electrical and magnetic fields generated by intra-cloud,
inter-cloud, or cloud to ground electrical discharges occurring within
200 nm of the airplane and sends the “discharge” data to the
processor. The processor digitizes, analyzes, and converts the
“discharge” signals into range and bearing data and communicates
the data to the MFD every two seconds via the secondary Integrated
Avionics Unit.
28 VDC for Weather Information System operation is supplied through
the 3-amp WEATHER circuit breaker on AVIONICS BUS. Refer to the
Perspective Integrated Avionics System Pilot’s Guide for a general
description of the system and its operating modes.
Bendix/King KR 87 Automatic Direction Finder (ADF)
The KR 87 ADF System is used as a means of identifying positions,
receiving low and medium frequency voice communications, homing,
tracking, and for navigation on instrument approach procedures. The
system consists of an antenna installed on the airplane exterior and
the KR 87 receiver which communicates with the Integrated Avionics
System via the secondary Integrated Avionics Unit. The HSI Bearing
Needle may be configured to indicate ADF tracking and homing
information.
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