Traffic Alert and Collision Avoidance System -TACS II

Introduction. Components. Surveillance. Protected Airspace. Collision Avoidance Logic. Cockpit Presentation.

Introduction: Mid-air collisions. Radar beacon transponders. TCAS I TCAS III

Components:

Components: Antennas above and below the aircraft. Interrogation at 1030 MHz and replies at 1090 Mhz. RA Display.

Surveillance: Squitter: By definition, the word “squitter” refers to a periodic burst or broadcast of aircraft-tracking data that is transmitted periodically by a Mode S transponder without interrogation from controller’s radar.  Mode A/C transponders. Interrogation/Reply. Synchronous Grable.

Surveillance:

Surveillance:

Surveillance:

Surveillance: Whisper – Shout interrogation.

Protected Airspace: TAU. Time-to-go approach. Modes of Operation.

Protected Airspace:

Collision Avoidance Logic: Sensitivity Level. Range Test. 2 Step process for RA.

Collision Avoidance Logic:

Collision Avoidance Logic:

Cockpit Presentation:

Cockpit Presentation:

Cockpit Presentation: