Simply Safer

The TēCAS™ safety avionics system combines actual aircraft climb performance-based Terrain Awareness Warning System (TAWS) capabilities into the TCAS 2000 line-replaceable unit (LRU). TēCAS is the only TAWS to provide avoidance alerts based on actual aircraft performance data, virtually eliminating nuisance warnings. Our system provides avoidance alerts based on the aircraft's actual ability to climb, not based on standard climb rates and an assumption that all critical functions are performing properly.

Along with optional Windshear and GPS, the system provides a powerful combination of functionality. Performance-based TēCAS can be applied to any air transport, regional, business or military aircraft to avoid Controlled Flight Into Terrain (CFIT), which gives operators more time to clear terrain and traffic with an increased margin to maneuver.

TēCAS meets and exceeds all the terrain safety features required by the TAWS TSO-C151a and Windshear C117a standards.

Features

The TēCAS terrain and traffic collision avoidance system combines the industry-leading TCAS 2000 with Thales’ 30 years of expertise in high performance terrain-avoidance systems.

Collision Prediction and Alerting mode:
• True look-ahead capability thanks to real-time analysis based on predicted
aircraft flight path and knowledge of terrain environment.
• Advanced and reliable ground hazard warning and caution.
• Alert computation according to instantaneous aircraft climb performance.
• Eliminates nuisance warnings.

Basic modes:
• Modes 1 and 2 (back-up mode)
• Modes 3, 4 and 5
• Callouts and bank angle modes
• Airborne windshear warning system (option)
• Nav quality GPS (option)
• Situational Terrain Display
• Hazard and alerting areas

Database
• Compact Flash Card
• Worldwide terrain coverage
• Airport database
• Obstacle database (option)

Certifications
TAWS TSO-C151b, Class A
GPS TSO-C129a, Class B1/C1
Windshear TSO-C117a
TCAS TSO-C119b
Technical Specifications

Model TT-950 TT-951 TT-952 (Optional GPS)
Part Number 9000000-10001 9000000-55001 9000000-20001
Size 6 MCU 4 MCU 6 MCU
Weight 16.8 lbs.  14.7 lbs.  17.4 lbs. 
Power 90 watt typical  90 watt typical  100 watt typical
Cooling Per ARINC 600  Internal Fan  Per ARINC 600
Software DO-160D  DO-160D  DO-160D 
  DO-178B  DO-178B  DO-178B 
GPS Option No  No  Yes 
 
Smaller, lighter TAWS
Add TAWS without adding an LRU if the TCAS 2000 is already part of your safety avionics package. This solution will provide aircraft operators with lower cost of ownership without having to allow for additional space and weight.
The TCAS 2000 is unchanged from the existing ARINC-735A characteristic in terms of operational characteristics and I/O interfaces. The TAWS function uses connector pins that are currently unused by the TCAS.
Aircraft climb performance-based
for higher degree of safety
Lower cost of ownership
Lower acquisition cost
Less space, weight and wiring than
a two-LRU system
Twice the reliability of a two-LRU system
Simplified maintenance
Reduced sparing