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Thread: Optimum Cruise Alt formula
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Old 7th February 2014 | 14:23
  #13 (permalink)  
single chime
 
Joined: Apr 2010
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From: dunno
CI is airline+aircraft type+city pair- specific. As a rule of thumb, pricy fuel=low CI; pricy crew=high CI. Nowadays, fuel is expensive everywhere, so CI are usually low.
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