What Is TCAS? A Comprehensive Guide to Traffic Collision Avoidance Systems
Pilot Institute
JULY 4, 2025
Pilots constantly watch out of the cockpit windows, and air traffic control monitors traffic in the airspace. Key Takeaways TCAS involves aircraft transponders interrogating each other to predict a collision course. Pilots themselves scan for traffic by looking out the cockpit windows. TAs are only an alert.
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