

The aircraft burns a lot of fuel when taking off since it takes quite a lot of energy to get a 400 ton plane moving. But once it is up in the thin air and cruising at 500MPH, it is burning less fuel per-person than an economy car (and going a lot faster).Think of it this way Something huge like a boeing 747 would take much more fuel to take off with all that weight.



For example a Boeing 747 jet engine swallows a gallon or so of fuel every 2 seconds at about 90 percent throttle (take off) so take this and multiply it by the average runway roll out even the 747 is airborne in under 60 seconds so do the math per 1 engine, and at max load needs about 10,000 feet to take off; takes off in about 55 seconds.

here is the calculation

(55 take off seconds / 2 second for every gallon)=27.5 seconds

(27.5 seconds X 1 gallon)=27.5 Gallons

(27.5 gallons X 4 Engine)=110 Gallons

So it takes 110 gallons just to take from standing at the runway to lift off. but an average it would be siting there for more than 2 hour while loading and waiting for clearance to the taxi way and take off. During this time it would take about gallon of gas every 8 seconds. which would roughly be around 3500 gallons to 5000 gallons depending on weather and other conditions.