Where are integral fuel tanks located in aircraft?

Integral fuel tanks are specifically designed as part of the aircraft structure, and in many aircraft, they are integrated into the wings. This design allows the wings not only to provide lift but also to store fuel, maximizing the use of available space and reducing overall aircraft weight. The construction of these tanks involves sealant and special materials to ensure they are leak-proof and can withstand the pressures and conditions encountered during flight.

Utilizing the wings for fuel storage also helps with aircraft balance and stability. As fuel is consumed during flight, the change in weight distribution can be managed more effectively with the fuel tanks located in the wings compared to other potential locations. While integral fuel tanks can be found in other locations on certain aircraft, the wings remain the most common and efficient location for this purpose in a wide array of aircraft designs.