>>1899403>>1899410>>1899435In the off case you're not pretending but actually retarded. No, passenger planes aren't anywhere close to max take off weight in the vast majority of their routes.
>>1899449Sure they have to carry a bit of spare fuel, but they're not filling the tanks to the brim. They know the wind conditions, they know their weight, they know how much they should need, and they'll add a bit more as extra. Any extra fuel carried makes you burn more fuel, so it's not free to carry extra fuel, given the state of airline finances they're doing everything to save money. That means as little fuel as they can get away with. Nothing is negligible when you're flying hundreds of planes on a daily basis.
