16 tons of fuel per hour is about 5,300 gal/hour. Sounds about right for 6 of the worlds largest jet engines. But hard to believe it only carries 11,000 gallons. A 747 carries almost 50,000 gallons. According to Wikipedia the an225 has a fuel capacity of 300,000 kg. Thats 660,000 lbs or 110,000 gallons. About 10 hours of fuel.