The Aerion airframe will be constructed largely of carbon fiber composite structures, with titanium used for leading edges and some internal structures. The use of carbon fiber in major structures has become commonplace. The Boeing 787 and Airbus A350 XWB are largely constructed of this material. Its properties and construction processes are well understood. The AS2 will benefit from the low weight and high strength of carbon fiber, as well as the ability to craft composite materials into the precise and complex shapes required for superior aerodynamics. But of equal importance, carbon fiber wings will be extremely stiff, a requirement for holding the precise shape required for laminar flow and efficiency.
The entire AS2 airframe is a symphony of subtle curves to guide airflow around its 170-foot length with the absolute minimum of drag.
The Aerion wing is thin, smooth, and efficient, while also light and immensely strong thanks to carbon fiber construction, similar to wing structures of modern fighter aircraft.