Specifications

SECTION III
INSTRUMENTATION AND AVIONICS
MODEL 560
TRAFFIC ALERT AND COLLISION AVOIDANCE SYSTEMS (TCAS) (OPTIONAL)
TCAS 1
The optional TCAS 1 system is an on board collision avoidance and traffic display system with
computer processing to identify and display potential and predicted collision targets. The system is
compatible with and independent of the air traffic control system. The TCAS 1 system, from transponder
replies, determines the relative altitude, range and bearing of any aircraft equipped with a mode C or S
transponder, and determines the threat posed by such traffic, by using standardized algorithms. Aircraft
with only mode A transponders will not provide altitude information; however, TCAS 1 will issue traffic
advisories. TCAS 1 cannot detect aircraft without operating transponders.
If the TCAS 1 system processor detects an aircraft which presents a potential collision hazard
(intruder), it issues visual and aural (TRAFFIC, TRAFFIC) advisories to the crew. The visual advisory is
presented by symbols on the lower part of the multifunction display (MFD), if the TCAS mode is selected
on. The intruder’s position is displayed on the PFD in its relative position, with trend arrows to show
whether it is climbing or descending at a rate of more than 500 feet-per-minute. The symbols are color and
shape coded to enable the crew to quickly identify the seriousness of the threat posed by each intruder.
Figure 3-34. Multifunction Display with TCAS Presentation
I 3-70 Configuration AA 56OMB-01