747-400 range question
ladies and gentlemen,
can someone please explain to me how carriers are able to operate the 744 (non extended range) on legs as long as VHHH-KORD which is over 7700nm?? i'm sure the high latutudes of the polar route help but isn't this range beyond the normal range of the aircraft?? are carriers weight-limiting them inorder to carry more fuel? any insight would be greatly appreciated.
kind regards,