Talk:Traffic Collision Avoidance System

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I'm currently working on this article, but feel free to work on this if you like; I would especially like ideas on how to structure this article so it is friendly for readers with little background on aviation issues. -- Alanl 09:33, 21 January 2006 (UTC)

I'm currently working on my final year project which has to do with collision avoidance, please I am looking forward to hearing from you all on what ever you know about this topic and relevant circuit diagrams to support. You can reach me at slim525@engineer.com and oluwatomilola.o.ayeni@exxonmobil.com. -- Tomi 14:09, 26 June 2006

Eurocontrol is not a regulatory agency, nor is ICAO. The European regulation that requires the carriage of ACAS is probably from EASA, but at the moment I cannot locate chapter and verse. -- treesmill 12:34, 8 August 2006 (UTC)

PCAS is a proprietary system unrelated to TCAS. Unless I see a reasonable argument to the contrary in a few days I shall remove the references to it from the TCAS article. -- treesmill 15:15, 1 September 2006 (UTC)

I have revised and expended the article (incorporating the above comments). I think it is improved but could still do with an expert's revision. -- FirstPrinciples 04:44, 5 October 2006 (UTC)

[edit] How many passenger seats?

In the introduction, it says that TCAS must be fit in an aircraft with at least 19 passenger seats. In the table at the bottom it says 30 seats. A recent article in Slate says that it must be fit to all planes with more than 10 seats. So which one is it now? The current figures, 19 and 30, are not referenced. --ZeroOne (talk | @) 09:36, 5 October 2006 (UTC)

I don't have access to the ICAO Annex at present, but I believe that the figure of 19 or 5700 kg is correct for that reference, however, ICAO annexes are Standards and Recommended Practices, not regulations, and it may be that the regulatory authorities referenced later have different requirements and the figures in the article are correct. I'll check next week. treesmill 16:02, 6 October 2006 (UTC)

[edit] relationship to Automatic Dependent Surveillance?

Does TCAS use the same broadcast radio signals as Automatic Dependent Surveillance? Can it use those same signals? If so, this article should say so; if not, this article might want to mention that the two systems are distinct, or that one obsoletes/supersedes the other (whichever the case may be). —Steve Summit (talk) 18:51, 4 November 2006 (UTC)

I've added some information about using ADS-B messages with TCAS. Maybe someone with more in-depth knowledge could add more details on hybrid surveillance. Richwing 17:07, 8 November 2006 (UTC)