it's a weight issue. If the wing tanks would be emptied first then difference in weight between the wings and the fuselage would become too large and put too much stress on the wing-fuselage connection. Emptying the center tank first makes the fuselage lighter.
Fuel on the 747 is stored mostly in the wings. There is a "center wing" tank that is actually underneath the cabin. Some models of the 747-400 also have fuel in the tail.
It is a fuel tank formed by part of an aircraft's structure rather than a dedicated separate tank. The most common example is the wing of all modern airliners where part of the wing is sealed and by itself forms the fuel tank; in other words there is no separate tank inside the wing. Light aircraft generally use a separate tank inside the aircraft--such and arrangement is not known as an integral fuel tank.
It is a fuel tank formed by part of an aircraft's structure rather than a dedicated separate tank. The most common example is the wing of all modern airliners where part of the wing is sealed and by itself forms the fuel tank; in other words there is no separate tank inside the wing. Light aircraft generally use a separate tank inside the aircraft--such and arrangement is not known as an integral fuel tank.
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CO2 is not used in or as an aircraft fuel.
The fuel tank is under the center of the vehicle.
Aircraft use three types of fuel tanks using: (1)integral (2)rigid removable (3)bladder.
In there is a type of extremophile living in the gas tank of the jet aircraft, my first thought would be to add an alcohol based fuel additive which may potentially kill off that particular microorganism. Modifying the pH within the fuel tank might also curb the microbe growth (but might also further degrade the fuel tank).
The A320 has 7 fuel tanks,center tank, Inner tank,outer tank, and the vent tank (on the end of the wing)
It's on the back of the fuel tank,about center of the tank
Jumbo jets have several fuel tanks. The majority of these fuel tanks are located in the wings of the aircraft. Some aircraft may also have auxiliary tanks in the tail or belly. The Douglas (now Boeing) MD11 has a fuel tank in the Elevator(horizontal tail surface) that is used to balance the aircraft to fly at altitude with less drag.
rear of fuel tank in center