A380 Fuel Consumption and Range

[Poseidon]

Does anyone know the Hourly FF and the Full Payload Range for A380?

I have tried to find this information with no success but from data I gathered I made the following calculations.

A full load A380 will burn 0.76 gal per passenger per 60 miles.
A full of passengers 3-class A380 (555 passengers) will burn 0.76 x 555 = 421.8 gals per 60 miles.

Now, I know from real life that a flight between Athens and New York a B744 will need 10 hours for a distance of 4600nm.

As far as I know the A380 will be as fast as the B744 so it would also need about 10 hours for 4600nm.

The distance of 4600 miles is 76.6 times longer than that of 60 miles therefore the A380 would burn 421.8 x 76.6 = 32310 gals for a 10 hours flight

Easily we can calculate then 32310 / 10 = 3231 gals per hour for the A380 or 3231 x 6 = 19386 lbs

So my first question is if you see any mistakes in my calculations above as they make the A380 much more profitable than a B744 which burns 20000 lbs per hour carrying significant less passengers and cargo.

My second question concerns the range. Since a full payload A380 burns 421.8 gals per 60 nm and its fuel capacity is 82000 gals it will have a range of 82000 / 421.8 = 194 times the distance of 60 nm which implies 194 * 60nm = 11664 nm.

Of course I expect some deviations in the range calculation as I have not taken into consideration climbing and decnending phases where the speed is different but it seems that the actual range is a lot more than 8000nm whilst that of the B744 is not more than 7600nm!

Of course everyone talks about a new King of the air but that much?

Any comments?

[elite marksman]

One reason why the fuel usage would be less is age. The 744's engines were designed in the early 80's, using technology from that time. The A380's engines were designed in the late 90's, using CAD, and a much more sophisticated design. If you replaced the 744's engines with those of a A-380 your fuel comsumption would drop significantly as they would be able to keep the aircraft aloft using considerably less thrust, and therefore, will be more fuel efficient.

[Woodlouse2002]

One reason why the fuel usage would be less is age. The 744's engines were designed in the early 80's, using technology from that time. The A380's engines were designed in the late 90's, using CAD, and a much more sophisticated design. If you replaced the 744's engines with those of a A-380 your fuel comsumption would drop significantly as they would be able to keep the aircraft aloft using considerably less thrust, and therefore, will be more fuel efficient.

It's not a difficult jbb to replace an engine. Especially when they're slung under the wings.

[Boomtown Rat]

This isn't exactly addressing your question, but i've heart Perth, Western Australia, is upgrading their facilities because an A380 could make it from London to Perth.  Whether this is full payload/passengers or not, I don't know.

[kellyp]

Being a bigger plane an A380 would need more thrust.I've read recently that the engineson a A380 develope 80,000 pounds of thrust the engineson a 747-400 develope 60,000 pounds of thrust.