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Thread: does flex takeoff saves fuel?
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Old 16th Jul 2012, 09:51
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de facto
 
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BOEING says it DOES NOT save fuel.
Derate/assume=higher fuel burn.

However not using derate or Ass temp will decrease your engine efficiency after some time therefore INCREASING its overall fuel burn.
Last edited by de facto; 16th Jul 2012 at 09:55.
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