That's based on the assumption they were only fueled for the scheduled Beijing flight.
What if that assumption is wrong? Then that 2200 nautical mile circle (2532 of 8892 maximum statute miles) would need to be expanded to the point of irrelevance. They could pretty much be anywhere.
That’s probably been checked several times. If that had happened it would of been leaked by now like everything else and then originally denied by the Malaysian government then confirmed later like several things in this investigation.
I would say the Americans that are there have checked that. If it had enough fuel to make it to say Iran or Pakistan then the USS KIDD wouldn’t be going to a specific area in the Indian Ocean. I think they now something.
I can only come to one fact and that is the plane was hijacked. If it was hijacked by the pilots then this plane has landed somewhere and is now in not to friendly hands. If it were someone else on the plane doing the hijacking they might assumed the plane had enough fuel to fly 8800 miles and may have run out over the Indian Ocean.
I think we will all know today or tomorrow.