What is a key characteristic of stringers in aircraft design?

• A. They are only for decoration
• B. They distribute load and add strength
• C. They serve as insulation
• D. They make aircraft lightweight

Answer: (B)

A key characteristic of stringers in aircraft design is that they distribute load and add strength to the structure. Stringers are long, slender structural members that run along the length of the aircraft's fuselage and are attached to the skin of the aircraft. Their primary function is to reinforce and support the outer skin, helping to carry the loads that the aircraft experiences during flight, such as aerodynamic forces and pressure differentials.

This load distribution ensures that the aircraft maintains its structural integrity while minimizing weight, as the design allows for a thinner outer skin without compromising on strength. The effective use of stringers plays a crucial role in the overall performance and safety of the aircraft, contributing to its ability to withstand various stresses during operation.

In contrast, options regarding decoration, insulation, or overall weight reduction do not accurately capture the essential function of stringers. While weight management is important in aircraft design, the primary role of stringers is structural, focusing on strength and load distribution.