GE90-115B Maximum Fuel Flow? — Tech Ops Forum

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GE90-115B Maximum Fuel Flow?

titanmiller From United States of America, joined May 2006, 86 posts, RR: 0
Posted (6 months 2 weeks 5 days 3 hours ago) and read 2327 times:

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?

3 replies: All unread, jump to last

ferpe From France, joined Nov 2010, 1917 posts, RR: 56
Reply 1, posted (6 months 2 weeks 4 days 19 hours ago) and read 2203 times:

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 From Canada, joined Jul 2004, 3998 posts, RR: 4
Reply 2, posted (6 months 2 weeks 4 days 19 hours ago) and read 2199 times:

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 From Australia, joined Jun 2006, 207 posts, RR: 0
Reply 3, posted (6 months 2 weeks 4 days 7 hours ago) and read 2022 times:

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.