Which type of fuel cell is located in the interior portion of the wing?

• A. Fuselage Cells
• B. Feed Cells
• C. Integral Cells
• D. Transfer Cells

Answer: (C)

Integral cells are specifically designed to be located within the structure of the aircraft's wing. This type of fuel cell utilizes the wing's hollow structure to store fuel, effectively making the wing itself a part of the fuel system. By integrating the fuel storage within the wing, it saves weight and space, which is critical for aircraft design and performance.

Integral cells provide additional benefits, such as reduced vulnerability to leaks and damage since they are built into the wing's structure rather than being separate components. This design maximizes the aerodynamics of the aircraft and helps in maintaining the center of gravity.

The other types of fuel cells, such as fuselage cells, feed cells, and transfer cells, serve different purposes. Fuselage cells are located within the fuselage, whereas feed cells generally refer to those that supply fuel to engines from tanks, and transfer cells are used to move fuel between different tanks or areas in the aircraft. Their roles differ from that of integral cells which are specifically located in the wings for optimized function in fuel storage and distribution.