MD82 Posted January 24 Share Posted January 24 Hello Ini, I have noticed for some time now a discrepancy in fuel planned and fuel used. Today I am investigating. So, I opened up an A300-600 FCOM and went to the cruise performance tables. While cruising at 140.000 kg at FL330 in ISA+10, I interpolated a cruise fuel flow of 6.983 lbs/hr. On the gauges in the cockpit, I can read around 6.150 lbs/hr. In other words, around 13% less. Now this was a spot measurement, and more tests have to be carried out, however in any case the fuel flow seems a little frugal for these engines. I was curious if you show different data or if you know that extensive testing has already been done to match these figures. I crunched out OFP's in both PFPX and SimBrief and in both I am using less fuel than planned. Regards, Xander Link to comment Share on other sites More sharing options...
MD82 Posted January 24 Author Share Posted January 24 Disregard above as my % reference is a B4 model. However, the difference in trip fuel remains. 1 Link to comment Share on other sites More sharing options...
Deleted Account Posted January 28 Share Posted January 28 Are you using the ini provided simbrief profiles from here? Link to comment Share on other sites More sharing options...
MD82 Posted January 31 Author Share Posted January 31 That's correct. But now I have no official reference. So you can close this as I can't officially verify. Link to comment Share on other sites More sharing options...
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