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Source:https://www.aircraft-aluminium.com/a/aircraft-aluminum-for-fuel-tank.html
Regardless of whether it is a car or an airplane, its power comes from the consumption of energy liquid, and the container that contains the energy liquid is called a fuel tank.
Fuel tanks can be divided into two types: open fuel tanks and closed fuel tanks. The fuel tank must have a large enough volume; the oil suction pipe and the oil return pipe should be inserted below the lowest liquid level to prevent air suction and oil return splashing and generate bubbles; the distance between the oil suction pipe and the oil return pipe should be as far as possible, and the distance between the suction pipe and the oil return pipe should be as far as possible. Set partitions; in order to keep the oil clean, the fuel tank should have a peripheral sealed cover plate with an air filter; the bottom of the fuel tank should be more than 150mm from the ground; adequate attention should be paid to the anti-corrosion treatment of the inner surface of the fuel tank.
While the aircraft consumes a lot of energy during the flight, it is very important to choose the material of the fuel tank. The aluminum for aircraft fuel tank made of 5a06 aluminum alloy is used to increase the volume of the fuel tank and store more fuel to provide protection for the aircraft to fly for a long time. The density is small, the weight is light, and the weight of the aircraft is reduced, thereby reducing fuel consumption.