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Old 9th Oct 2014, 15:39
  #7 (permalink)  
mcdhu
 
Join Date: Mar 2000
Location: Sunrise Senior Living
Posts: 1,330
Surely an overlay approach without the raw data becomes an RNAV approach?
My understanding of an overlay is simply that you are saying to the AC that you can't be bothered to manage it yourself (selected/selected) so please will you do it. But the primary source of NAV data is the raw stuff. So if it's not there, you can't do it.
Unless you know different!!
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