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Old 3rd Jan 2015, 11:44
  #17 (permalink)  
Join Date: Aug 2005
Location: EGSX
Age: 52
Posts: 177
Flyme273 - I can assure you that Westerly variations are written -ve, Easterly are +ve

One of many worked examples...

HDG Question - ATP Forum

Edit: this one explains it a bit more

I went through all this myself doing GNav on the ATPL course

Last edited by TractorBoy; 3rd Jan 2015 at 12:46.
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