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Illustration of the Boeing SUGAR Volt concept aircraft. SUGAR Volt is the hybrid aircraft concept proposed by a team led by Boeing's Research & Technology division. It is one of a series of concepts put forward in response to a request for proposals for future aircraft issued by NASA.
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]
The ecoDemonstrator Program is a Boeing flight test research program, which has used a series of specially modified aircraft to develop and test aviation technologies designed to improve fuel economy and reduce the noise and ecological footprint of airliners.
In aeronautics, bracing comprises additional structural members which stiffen the functional airframe to give it rigidity and strength under load. Bracing may be applied both internally and externally, and may take the form of struts, which act in compression or tension as the need arises, and/or wires, which act only in tension.
Strut braced: one or more stiff struts help to support the wing, as on the Fokker D.VII. A strut may act in compression or tension at different points in the flight regime. Wire braced: alone (as on the Boeing P-26 Peashooter) or, more usually, in addition to struts, tension wires also help to support the wing. Unlike a strut, a wire can act ...
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] X-3 Stiletto: Douglas: USAF, NACA 1952 Highly loaded ...
The Type XIII differed considerably from the series of tractor configuration monoplanes with which Louis Blériot is generally associated. It was a high-wing pusher configuration monoplane, with the 100 hp (75 kW) Gnome engine inset into the trailing edge of the square-tipped wing, which had inset ailerons and was braced by a deep wire-braced truss underneath.
Instead of using wires and turnbuckles to brace the wings, which was the common practice of the time, the Seagull's wings were braced with a truss that traveled under the fuselage from wingtip to wingtip. The designers claimed that this arrangement was no heavier than the typical wire bracing and it offered better rigidity to the wings [2]