Place the zero tick mark of the appropriate scale on the last point marked which is the current weight and CG (BOW + 1st and 2nd row of pax) and draw up to 400 lbs.

Now we have determined our Zero Fuel Weight (weight of cargo and passengers with no fuel). Not all aircraft have a ZFW limitation. If you are over the Maximum ZFW, you know exactly how much cargo you must leave behind to meet the limitation just by looking at the graph..

to go to the next step