热能动力工程——信息动态专栏（英文）

New Transonic Truss-Braced Wing Concept from Boeing

Engineers at Boeing and NASA are collaborating on a lightweight,ultra-thin Transonic Truss-Braced Wing (TTBW) concept,designed to be more aerodynamic and fuel-efficient than current designs,as part of the Subsonic Ultra Green Aircraft Research (SUGAR) program focusing on innovative aerospace concepts that reduce noise and emissions while enhancing performance.In January 2019,Boeing engineers revealed the newest TTBW design,which researchers say will fly higher and faster than the previous TTBW concepts and offer unprecedented aerodynamic efficiency while flying at Mach 0. 80,that is,593 mph,or 955 km/h. Originally,the TTBW was designed to fly at speeds of Mach 0. 70-0. 75.