Computer simulation showing the aerodynamics of the Transonic Truss-Braced Wing (TTBW) concept. The green and blue areas of the aircraft are areas of lower drag whilst the red and violet areas of the aircraft have more drag. The triangles around the aircraft simulate air flow around the aircraft. Researchers are looking to improve the concept aircraft's aerodynamics and efficiency. The TTBW concept is being designed through a partnership between NASA and aviation companies. They hope to make aircrafts cleaner by having less drag and burning less fuel.