In a semimonocoque fuselage, which type of structural members reinforce the skin?

In a semimonocoque fuselage design, the skin of the structure is reinforced by stringers and longerons, making this the most accurate choice. The skin of the fuselage is a critical component that provides aerodynamic shape and contributes to the overall strength of the structure.

Longerons are longitudinal members that run along the length of the fuselage, effectively distributing loads and providing structural integrity. They work in conjunction with stringers, which are usually smaller, transverse members that run perpendicular to the longerons. Both these components work together to create a strong, lightweight structure that can withstand both internal and external pressures.

This design allows for an efficient distribution of stresses across the fuselage, which is essential for maintaining the mechanical properties of the aircraft under various flight conditions. Each component plays a specific role in maintaining the integrity of the fuselage while allowing for the necessary flexibility to accommodate different types of loads.

While other choices like ribs and bulkheads or beams and columns are commonly associated with aircraft structures, they pertain to different configurations or specific design aspects that are not as relevant in the context of semimonocoque fuselage reinforcement.