What weighs more: a 747 full of asparagus or one full of fish? Fish is the answer but vegetables and flowers, surprisingly, are close. Flowers travel in refrigerated containers and have high water content. They are airborne just hours after being cut. The heaviest hauls on a 747-8F so far have been 135 metric tons (about 300,000 pounds) of fish from Santiago, Chile, to Miami. Apparently there is no smell involved. The lift is possible because of the astounding operating weights for the 8F. Max takeoff weight is 987,000 pounds — that's close to a million. You need a long haul ahead because the max landing weight is 763,000 pounds, requiring a burn of 33,000 gallons of jet-A. These are some numbers that require a double take.