I am an airline pilot flying the Boeing 777. The 777 burns about 2300 gallons per hour in cruise, while burning substantially more in climb. A typical flight from the West coast of the U.S. to Japan...
Different models of 747 use different engines from different companies with slightly different fuel consumption rates.A ballpark-accurate figure would be 400 gallons per engine, at idle speed.So with...
A 747 Classic averages 12,000 kg of fuel per hour. The 747-400 uses about 10,500 kg. per hr. These numbers also depend upon aircraft weight, altitude and temperature.