What type of wing structure does not use wires or external braces for support?

• A. Truss
• B. Cantilever
• C. Box
• D. Supportive

Answer: (B)

A cantilever wing structure is characterized by its ability to provide support without the need for external wires or braces. This type of wing is designed with an internal framework that distributes the loads throughout the wing itself, allowing for a streamlined and clean appearance that enhances aerodynamic efficiency. The design utilizes strong materials such as metals or composites, which can withstand the stresses of flight without requiring additional external support.

In contrast, other wing structures, such as truss and box wings, often incorporate external brace elements or wire support to maintain structural integrity and manage aerodynamic loads. Truss wings typically use a framework of interconnected struts, while box wings feature a closed structure that may still rely on some degree of external support. Therefore, the unique characteristics of cantilever wings make them distinct in their self-supporting capabilities, aligning with modern aircraft designs that prioritize both performance and aesthetic considerations.