If you don't know ZFW moment, how do you know that when you're forced to use those last few kilograms of fuel, that the aircraft will still be within CG limits? Sure we *plan* not to use every last drop, but every drop is there in case it's needed. You're wrong to say that we never, or will never, use that fuel. Remember the Gimli glider? Or the Azores glider?
Last edited by Tinstaafl; 4th October 2012 at 01:09.