Why Two Planes Can't Occupy the Same Sky

Chapters

1. 00:00The Myth of ATC Alone
2. 00:20How TCAS Sees the Sky
3. 00:38"Pilot must follow it immediately, even if it co
4. 00:54Invisible Signals
5. 01:101030 MHz interrogation, 1090 MHz reply
6. 01:29Yellow Alert
7. 01:45The Final Command
8. 02:03"When a Resolution Advisory is issued, the pilot
9. 02:16RA: Climb, Climb
10. 02:38Coordinated Avoidance
11. 02:57"TCAS II provides coordinated resolution advisor
12. 03:13The Day the Sky Failed
13. 03:31a single layer of protection... was insufficient
14. 03:51A Catalyst for Change
15. 04:08Trust the Machine
16. 04:27When Trust Fails
17. 04:37TCAS Said Climb
18. 04:52The crew followed ATC instructions instead of th
19. 05:06Obey TCAS, Always
20. 05:19The Silent Threat
21. 05:33The Blind Spot
22. 05:47Thousands remain exempt
23. 06:00The Silent Guardian
24. 06:17When a Resolution Advisory is issued, the pilot
25. 06:32The Blind Spot Remains
26. 06:46The Coordination Dance
27. 07:10Beyond Line of Sight
28. 07:34The Altitude Filter
29. 07:58The Time to Closest Approach
30. 08:22The Silence of Non-Transponders
31. 08:46The Helicopter Gap
32. 09:10The Evolution of TCAS
33. 09:34The Pilot's Training
34. 09:58The Global Mandate
35. 10:22The Unseen Network
36. 10:46The Data Link Handshake
37. 11:14The 40-Second Window
38. 11:42The Vertical Speed Target
39. 12:10The Altitude Reporting
40. 12:38The Future: ADS-B
41. 13:06The Last Line of Defense

About this video

Learn how the Traffic Collision Avoidance System (TCAS) stops two planes from occupying the same sky. Discover how TCAS works, why pilots must follow its resolution advisories even over ATC, and the mid-air collisions that made TCAS mandatory. Chapters: 00:00 The Myth of ATC Alone 00:20 How TCAS Sees the Sky 00:38 "Pilot must follow it immediately, even if it co 00:54 Invisible Signals 01:10 1030 MHz interrogation, 1090 MHz reply 01:29 Yellow Alert 01:45 The Final Command 02:03 "When a Resolution Advisory is issued, the pilot 02:16 RA: Climb, Climb 02:38 Coordinated Avoidance 02:57 "TCAS II provides coordinated resolution advisor 03:13 The Day the Sky Failed 03:31 a single layer of protection... was insufficient 03:51 A Catalyst for Change 04:08 Trust the Machine 04:27 When Trust Fails 04:37 TCAS Said Climb 04:52 The crew followed ATC instructions instead of th 05:06 Obey TCAS, Always 05:19 The Silent Threat 05:33 The Blind Spot 05:47 Thousands remain exempt 06:00 The Silent Guardian 06:17 When a Resolution Advisory is issued, the pilot 06:32 The Blind Spot Remains 06:46 The Coordination Dance 07:10 Beyond Line of Sight 07:34 The Altitude Filter 07:58 The Time to Closest Approach 08:22 The Silence of Non-Transponders 08:46 The Helicopter Gap 09:10 The Evolution of TCAS 09:34 The Pilot's Training 09:58 The Global Mandate 10:22 The Unseen Network 10:46 The Data Link Handshake 11:14 The 40-Second Window 11:42 The Vertical Speed Target 12:10 The Altitude Reporting 12:38 The Future: ADS-B 13:06 The Last Line of Defense Sources & further reading: • FAA Advisory Circular 120-48C — Guidance on TCAS operations and pilot procedures • ICAO Annex 10, Volume IV — Standards for TCAS and transponder systems • NTSB Report on Charkhi Dadri Collision — Investigation report of the 1996 mid-air collision • FAA TCAS II Transition Program — https://www.faa.gov/air_traffic/technology/tcas/ • ICAO Global Air Navigation Plan — Includes TCAS implementation statistics • Überlingen Mid-Air Collision Investigation Report (BFU) — Report on the 2002 collision where ATC was followed over TCAS

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