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During World War II the Douglas Aircraft Company in California was approached by Air Technical Service Command, US Air Force, for a design proposal under Materiel, Experimental Project MX-656 to ...

Had development finished, the X-66 intended to test whether a compound set of wings, , could generate better lift ...

NASA and Boeing are putting the Sustainable Flight Demonstrator X-66 on hold to focus on thin-wing research after two years ...

Currently, when establishing the continuous-traverse mode force measurement test technique in a one-meter-scale sub-transonic and supersonic wind tunnel, the maximum Mach number control deviation ...

Boeing Puts NASA X-66 Plan On Ice As Future X-Plane Fears Grow is available to both Aviation Week & Space Technology and AWIN subscribers. Get free aerospace news, insight and analysis from our ...

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The X-66 design incorporated extra-long, thin wings stabilized by diagonal struts, known as a Transonic Truss-Braced Wing concept, and there were high hopes that its development could lead to more ...

The transonic truss-braced wing (TTBW) aircraft was scheduled to make its first flight in 2028. If flight demonstrations were successful, Boeing planned to start operating the aircraft ...

The aircraft—being developed with a transonic truss-braced wing—is on “pause for later consideration” after Boeing proposed to focus on a ground-based testbed, which will instead ...

Aerodynamic and structural data on the X-66 were obtained from wind tunnel tests of a 5.3%-scale model in the Transonic Unitary Plan Facility at NASA’s Ames Research Center in California.