The X-29 was built to test forward swept wings, a supercritical airfoil, and extreme aerodynamic instability that demanded ...

Suppose the identical quality that renders a fighter aircraft revolutionary is also the one that keeps it from ever actually flying as a weapon of war. The Sukhoi Su-47 Berkut is a stark case history ...

The experimental Su-47 Russian demonstrator fighter jet was somewhat of a short-lived demonstrator, yet numerous public accounts suggest that its innovations propelled development of the country's two ...