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

What do people do with their helicopters upon completion, besides attend fly-ins? As these are experimental craft, commercial use is prohibited. Rod Harms plans on using his Talon for two-hour ...

Boeing and NASA will pause work on the X-66 Sustainable Flight Demonstrator, an experimental plane design featuring long, ...

In the years after World War I, when aviation was all the rage in Europe and North America but the Treaty of Versailles banned the production of military aircraft ... him with plans for a jet ...