PPRuNe Forums - View Single Post - Why is the TA set at 18000 ft in the USA?
Old 21st February 2010 | 00:19
  #8 (permalink)  
slatch
 
Joined: Jan 2007
Posts: 172
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From: California
Instesting article about a common TA in Europe

http://www.eurocontrol.int/airspace/...erspective.pdf
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