A look at the updates introduced by the teams at the Miami Grand Prix, with a new rear wing upper flap a contributing factor ...

NASA and Boeing have effectively cancelled the X-66 Transonic Truss-Braced Wing (TTBW) concept demonstrator aircraft.

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

Based on a heavily modified McDonnell Douglas MD-90, the X-66 was intended to demonstrate a truss-braced version of the thin wing at full scale. The experimental aircraft formed the flagship of NASA’s ...

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