Evolution of US military aircraft structures technology

A survey of the major structures technology developments that have influenced modern aircraft design is presented. The authors' perspectives on the key materials and design concepts that are presently driving U.S. Air Force and Navy military airframes are presented. The current focus of research and development (R&D) structural development resources and the reasons for this focus are addressed. Some thoughts on how to approach future designs are provided, and the structures technologies that are expected to be the focus of future R&D efforts are identified.