PPRuNe Forums - View Single Post - Why is the TA set at 18000 ft in the USA?
Old 21st February 2010 | 21:12
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Love_joy
 
Joined: Apr 2007
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From: Here, there, everywhere
Try the US AIP, or their equivalent.

From memory, they wanted a TA that would work right across the country and 18,000 was lowest altitude that would work. I could be very wrong though...

Some explanations in the AIP, ENR 1.7; http://www.faa.gov/air_traffic/publi...bs/AIP/aip.pdf

Last edited by Love_joy; 21st February 2010 at 21:23.
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