Which of the following is NOT a purpose of using stringers in stressed skin wings?

Stringers in stressed skin wings serve several important functions essential for both structural integrity and performance. While providing structural support is fundamental, as stringers are integral in distributing loads across the wing structure and maintaining the wing's shape, they also contribute to reducing weight. By reinforcing the wing without significantly increasing mass, stringers allow for a balance of strength and lightweight construction, which is critical for aircraft efficiency.

Facilitating airflow, while not a primary function, can be related to how stringers help maintain a smooth and aerodynamic surface over the wing, thus indirectly aiding airflow over the wing. However, the enhancement of aesthetic design is not a recognized purpose of stringers in stressed skin wings. Their primary roles are functional, focusing on strength, weight reduction, and structural stabilization rather than aesthetic appeal. Thus, while aesthetics can be a consideration in overall aircraft design, it does not qualify as a purpose of stringers in this structural context.