titanmiller
Topic Author
Posts: 86
Joined: Thu May 25, 2006 2:57 pm

GE90-115B Maximum Fuel Flow?

Sun Dec 02, 2012 2:42 pm

Does anybody have a ballpark number for the fuel flow of a GE90-115B at TRT and sea level?

Based on what I know about the CFM56's fuel flow and multiplying to get equal thrust, I would guess that it is around 40,000-45,000 lb/hr. Does anyone have firsthand experience with this?
 
ferpe
Posts: 2651
Joined: Tue Nov 30, 2010 7:44 am

RE: GE90-115B Maximum Fuel Flow?

Sun Dec 02, 2012 10:29 pm

You get the exact value here, it is part of the ICAO engine emission databank, You need to convert to imperial units though:

http://easa.europa.eu/environment/edb/aircraft-engine-emissions.php
Non French in France
 
sunrisevalley
Posts: 5133
Joined: Tue Jul 06, 2004 3:26 am

RE: GE90-115B Maximum Fuel Flow?

Sun Dec 02, 2012 10:39 pm

Off a copy of a flight plan that I have , for a 77W at MTOW the burn from sea level to FL39 cruise was 8332kg over a time of 30-mins. The Boeing 77W load/range chart is based on the -115BL I believe it is.
 
Legs
Posts: 246
Joined: Fri Jun 23, 2006 3:37 pm

RE: GE90-115B Maximum Fuel Flow?

Mon Dec 03, 2012 10:22 am

From ferpe's link, the published takeoff fuel flow was 4.690 kg per second. Multiply by 3600 to get kg/hr gets you 16,884 kg per hour. Convert that to pounds and you end up with about 37,144 lbs/hour takeoff flow for a GE90-115B.

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