"C Kingsbury" wrote in message
ink.net...

If you don't need a precise number, look at the aircraft's range with
maximum fuel and its fuel capacity. You can get this from the
manufacturers'
websites. Jets typically think about fuel consumption in pounds, so keep
in
mind there are about 6 pounds of Jet-A to the gallon.


Avgas is 6 pounds, but I think Jet Fuel is 6.5

http://www.fs.fed.us/im/directives/f...5709.16_30.txt