Hi,
Like Hunter states, JT9 love fuel..
I fly 747 freighters with JT9 7R4G2
sorry not good with pounds, I am a metric man myself!
Taxi= 1T
@ heavy weights FF 14-16T an hour in cruise
@ medium weights FF 12-14T an hour in cruise
@ light weights FF 9-12T an hour in cruise
obviously the numbers above depend on actual weight and more importantly your optimum FL and howfar you fly below or above. flying to low really sucks the fuel.
trip at max weight from HKG-DXB with 100+T payload and MTOW Total fuel load 110-120T. depending on wind
I raw data check the total trip fuel/flight time=, should be around 12-13T an hour avarage
good luck