B747
Topic Author
Posts: 259
Joined: Wed May 19, 1999 10:08 pm

B744 Fuel Flow At M.82

Thu Feb 15, 2001 2:01 am

As the topic says what is the average fuelflow per engine at cruise say M0.82-0.84 on a 747-400?
Brian
At Pope, where not happy, until you're not happy!
 
SailorOrion
Posts: 1959
Joined: Tue Feb 06, 2001 5:56 pm

RE: B744 Fuel Flow At M.82

Thu Feb 15, 2001 4:29 am

I've read something about 14000l / hour with a density of 0.8 kg/l (roughly) it makes 2.8 metric tons per hour and per engine, in US pounds thats little more than 6000 pounds per hour and engine...very roughly
 
XFSUgimpLB41X
Posts: 3961
Joined: Fri Aug 25, 2000 1:18 am

RE: B744 Fuel Flow At M.82

Thu Feb 15, 2001 9:44 am

When my dad flew the -200 for NWA, he figured up the miles per gallon on the plane at cruise. The plane gets something like 300 yards to the gallon. Pretty funny.
Chicks dig winglets.
 
timz
Posts: 6198
Joined: Fri Sep 17, 1999 7:43 am

RE: B744 Fuel Flow At M.82

Fri Feb 16, 2001 9:41 am

Stroud describes a trip on a BA 744 from LHR to YVR-- they started out burning 12000 kg/hr at FL310 and were down to 8000 kg/hr at FL390 toward the end. This seems to be typical for long flights-- a decrease of around a third as the plane lightens and they climb higher.

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