In what situation would a raised head rivet be most suitable?

A raised head rivet is most suitable in situations where aerodynamics are not a major factor. Raised head rivets, also known as flush rivets, have heads that may protrude slightly above the surface of the material they are fastened to. This design can disrupt airflow and create drag if used in critical aerodynamic applications, such as in the leading edges of wings or fuselage sections where smooth surfaces are essential for reducing drag.

In contexts where aerodynamics are of less importance, such as in certain internal structures or non-critical components, raised head rivets can be effectively used. They provide good mechanical strength and durability, making them suitable for applications where the strength of the joint is a priority, but the smoothness of the surface is less of a concern.

This understanding aligns with factors influencing the choice of rivet type based on the specific conditions of the application, underscoring the importance of considering aerodynamic effects in aviation structural design.