A-380 Jet Fuel Tank Configuration

Center tank first for wing bending relief would be the only sane choice...

I'm pretty sure the 380 has no center tank, at least in the current version. But if it did, that would always be emptied first.

Typically you'd empty from inboard and out, but with quads it becomes a bit more complex. I think the 380 has four tanks per wing plus the trim tank.

Looking at this diagram, my guess is something like this:
- Inboard engines fed from feed tanks "2". Outer engines fed from feed tanks "1".
- Inner tanks transfer to feed tanks.
- Mid tanks transfer to feed tanks.
- Trim tank transfers to the feed tanks once at a certain fuel level or at a certain time before arrival.
- Outer tanks transfer to the feed tanks.

Starlionblue wrote:

I'm pretty sure the 380 has no center tank, at least in the current version. But if it did, that would always be emptied first.

Typically you'd empty from inboard and out, but with quads it becomes a bit more complex. I think the 380 has four tanks per wing plus the trim tank.

Looking at this diagram, my guess is something like this:
- Inboard engines fed from feed tanks "2". Outer engines fed from feed tanks "1".
- Inner tanks transfer to feed tanks.
- Mid tanks transfer to feed tanks.
- Trim tank transfers to the feed tanks once at a certain fuel level or at a certain time before arrival.
- Outer tanks transfer to the feed tanks.

That's pretty much it according to page 158 of the following PDF

The cheapest & most pleasant way to estimate the wing fuel capasity of an Airbus A-380, and at the end of its assembling be owner of a decorative model in your hobby room(?), would probably be to buy a plastic Revell scale-model where you can fill the space between the top- & bottom sides of the wing with modelling clay and press them together.      Then open up, adjust the pressed together clay piece to look like the depicted fuel tanks corresponding to those in pic #2. Add or remove clay and repeat procedure until the whole clay piece's shape corresponds to depicted tanks according to pic #2. Then measure the volume of the clay piece and scale it up 144x144x144x2  (equal to 2 wings).   Kindly observe the thickness of the plastic wing-skin is not in scale with the alu-skin of the real Airbus plane, but recalculated and obtained volume based on the total clay piece should give you a fair starting point for comparisons with officially stated fuel capacity for an Airbus A-380. 

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