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Old 21st August 2013 | 03:05
  #7 (permalink)  
misd-agin
 
Joined: Jan 2006
Posts: 2,205
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From: US
Seen this written before - every 1000 lbs of fuel burn equates to 150' increase in OPT/MAX ALT for the 737NG.

bfisk's 800' per hour example - 5000 lbs/hr fuel flow x 150'/1000 = 750' per hour.

Same basic math.
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