PPRuNe Forums - View Single Post - Optimum Cruise Alt formula

7th Feb 2014, 14:23

#13 (permalink)

single chime

Join Date: Apr 2010

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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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