INSTRUCTIONS:
You must fill only {yellow cells}items 2. 3 4 (Weight in Kgs) & 8. 12. Fuel (in Us Gallons)
Item 12. "Less fuel to destination" must be allways negative (ex. -34, -40...)
After filling the items indicated above, see Diff column. Negative values are NO GO !! and mean maximum weights exceeded.
If you've got no reds on Diff column, go to GC column. This one shows gravity center distance from datum. Take your flight manual, section VI, and look at the center gravity-inches aft of datum graphic. If you're into the dark envelop, let's go and have a good flight. Otherwise you'd better take away some pounds !!