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"Electric aircraft generates buzz at Oshkosh air show". Chicago Tribune. August 1, 2010. "Air show examines hybrid airliners". United Press. Aug 2, 2010. "NASA, Boeing Test Low-Drag Truss-Braced Wing Concept: High-aspect-ratio, truss-braced wing promises marked fuel savings". Aviation Week & Space Technology. Aviation Week Network. January 27, 2014
A model of the Transonic Truss-Braced Wing aircraft in a wind tunnel at NASA's Ames Research Center. By early 2019, following extensive wind tunnel testing at NASA Ames Research Center, an optimized truss and more sweep for the 170 ft (52 m) span wing allowed flying higher and faster, up from Mach 0.70–0.75 to Mach 0.80 like current jetliners. [3]
First aircraft to break the sound barrier in level flight. Proved aerodynamic viability of thin wing sections. [10] X-1A X-1B X-1C X-1D: Bell USAF, NACA 1951 High-speed and high-altitude flight X-1E: Bell USAF, NACA 1955 High-speed and high-altitude flight X-2: Bell USAF 1952 High-speed and high-altitude flight First aircraft to exceed Mach 3. [11]
It’s called the Transonic Truss-Braced Wing concept, which relies on elongated, thin wings stabilized by diagonal struts that connect the wings to the aircraft. The design’s shape creates less ...
This was a new aircraft destined for American Airlines and in their livery. With this, the first ecoDemonstrator, Boeing tested laminar flow technology for winglets, improving fuel efficiency by 1.8 percent. This fed directly into the design of the winglets used on the subsequent 737 MAX series. [19] The aircraft tested other technologies ...
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Transonic (or transsonic) flow is air flowing around an object at a speed that generates regions of both subsonic and supersonic airflow around that object. [1] The exact range of speeds depends on the object's critical Mach number, but transonic flow is seen at flight speeds close to the speed of sound (343 m/s at sea level), typically between Mach 0.8 and 1.2.