"Even with a payload of 263,200 pounds, it can fly non-stop for 2,500 miles at jet speeds."
I think it can fly a wee bit farther tan 2,500 miles non-stop.
These AP reporters are cracker-jack, man.
Fully loaded, that's about right. About double that in "ferry range" empty.
Max fuel load when we flew back in the late 80s was 222,500 pounds. At take off power, we burned 12,000 pounds per hour per engine. At cruise we burned about 4000 pounds per hour per engine. WE cruised at mach .77. At that speed each engine burned about 1 quart of fuel per second. So we were burning about 5 gallons per mile.
I have a few photos on my home page.