Hello Gearpins,
I'm interested in your comments about computers not being able to calculate fuel consumption. If you are refering to FMGC predictions, well they
are totally invalid. However, as far as I'm aware the fuel flow indications (EIS2 Airbus) are taken straight from the fuel metering unit which is just upstream from the engines measuring the quantity going into the burners - so surely ALT, TEMP etc are irrelevant because they would also affect the quantity indications in a similar manner. I stand to be corrected however
I'll still apply the basics though:
Quanitity divided by Fuel flow = Endurance
A4