I have flown lots of inter asian cargo, it is usually very light when travelling towards the low cost labor centers. And very heavy, maxed out heading towards the capital intensive countries. Japan is a consumer market to some extent, but does ship a little bit to China, Thailand, Philippines etc....... westbound from the US is usually very light......Dynasty was most likely landing at a very light weight probably about 500,000 lbs unless their marketing in JFK had been really lucky.