Originally Posted by
expedite_climb
Never come across an aircraft that allows more payload once the fuels on board when zfw limited.....
For interest, in addition on the 757 if the wing tanks are full, and fuel in the centre tank must be added to the zfw - that can make it very limiting !
I think the rule is to add centre tank fuel to the ZFW (or reduce the MZFW) if there is fuel in the centre tank with wing tanks less than full.