Talk:Radio Navigational Aids

External links modified (January 2018)
Hello fellow Wikipedians,

I have just modified 2 external links on Radio Navigational Aids. Please take a moment to review my edit. If you have any questions, or need the bot to ignore the links, or the page altogether, please visit this simple FaQ for additional information. I made the following changes:
 * Added archive https://web.archive.org/web/20070624193729/http://www.irbs.com/bowditch/ to http://www.irbs.com/bowditch/
 * Added archive https://web.archive.org/web/20061016164246/http://www.irbs.com/bowditch/pdf/chapt04.pdf to http://www.irbs.com/bowditch/pdf/chapt04.pdf

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Cheers.— InternetArchiveBot  (Report bug) 16:03, 29 January 2018 (UTC)