Archive > Technical discussions
A380 fuel consumption?
EHM-1001 Robert:
Yes, it can give you a close to the real thing. What you need to still consider is wind, and the decreasing fuel consumption as the airplane is getting lighter. So at the beginning, your average calculation seem to be too optimistic...and at the end of the flight it will look too pessimistic ;)
In other word, if you got a range calculator gauge, at the beginning of the flight it can show that you will not reach the destination...then at the end of the flight it will show you have a bit more extra range...and that is normal ;)
EHM-2155 Mariano:
Also remember that fuel consumption is not constant throuout the flight... Take off (and climb) and descent take extra and less fuel respectively... I think thats why Robert said your calculations will give you a close to real thing. Being a scientist-under-training myself, ive learned that theoretical calculations often differ from the real thing and experimentation is the only way to go.
Hmm and also you could have skipped step #2, since you only had to check the "Display fuel as weight" button there and get the exact fuel amount FS is considering. Shouldnt be too different to your calculated value anyway...
And just thought that maybe reserve fuel could be a factor too? that extra hour shouldnt be included in maximum range?
Its 4 am so dont flame me if im not making much sense :$
EHM-1821 Javier:
--- Quote ---Originally posted by EHM-2155 Mariano
Its 4 am so dont flame me if im not making much sense :$
--- End quote ---
And i thought i was sleepin late at 3am :]
yea, i realise that fuel consumption isint going to be constant, i was trying to calculate it for cruise since i thought that the average Climb and Descent together, the fuel used would average out to something similar to cruise.
EHM-1001 Robert:
Well, factories use to add a 200nm extra range over the given maximum. It as a standard now.
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