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Notice anything different about the wings on this airliner? This conceptual truss-braced wing narrowbody is an aircraft with a 170ft span folding wing. By utilizing trusses, the aircraft can have longer, thinner wings with greater aspect ratios. This, in turn, translates into less drag and 5-10% less fuel burned. The Transonic Truss-Braced Wing aircraft originated from a joint effort by NASA and Boeing to develop subsonic commercial transport concepts – meeting NASA-defined metrics in terms of reduced noise, emissions, and fuel consumption. The design is currently undergoing wind tunnel testing and other studies by NASA researchers.