Is it so that an airliner needs to burn about 700 liters of fuel when taking off and landing?

Question

are the fuel tanks located in the wings of the aircraft?

Answer 1

A better way is to convert the 700L to lbs because modern aircraft (a/c) burns in pounds per hour. Find the engines (eng) of the a/c and find the TSFC (thrust specific fuel consumption)

or how many lbs it burns per hr

3.8L =  1gal =8.5lbs jet fuel

700L/3.8=184.21Gallons     *8.5=1565.7lbs per hr    

so 700L or 184.2Gal =1565.7lbs per hr

for me THATS ALLOT but I work on fighters and I bet it is only a 1/4 of that.

It takes more fuel energy to put a a/c in motion for take off than landings (brakes)

Answer 2

No and no, airliners do burn more fuel in takeoff, but hardly any in landing. They only burn maybe 70 liters for giant airliners to start up the jets. The fuel is located in the fuselage, a part of the cabin.

Answer 3

Correction to the above: the tanks for most commercial aircraft are contained mostly in the wing structure, including the wings themselves and the central box structure that joins the wings together and to the fuselage. Long range aircraft may have tanks within the fuselage proper as well, but the main fuel tanks are in the wings.

Many aircraft will use fuel on reverse thrust (if fitted) to slow aircraft on landing, though as to how much is used depends on the aircraft type, the type and number of engines, the weight of the aircraft and many other factors.  Reverse thrust is usually brief, several seconds is typical.  It works by re-directing thrust to slow the aircraft, and you can see reverse thrust vents working on many jets when they land if you can observe the inboard jets closely.  Many four-engine jets have reversers only on two engines, usually the inner two.

EDIT:

Sorry to the answereer below me, but pounds and so on (US Imperial) measurements are used by all of three countries: the US, Liberia and Burma.  World standard for civil aviation is either litres or kilogrammes.