The X-66 program heavily modified a McDonnell Douglas MD-90 aircraft to demonstrate a truss-braced version of the thin wing.

Boeing and NASA are to pause development of the X-66 flight demonstrator to focus their research on the evolution of long, ...

Manufacturer proposes to instead focus its efforts on developing thin-wing technology, which it believes may have broader ...

NASA engineers began using a network of ground sensors in March to collect data from an experimental air taxi to evaluate how ...