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 ...

But the variable-sweep wing design seems to have gone out of fashion most recently. As the name suggests, “variable-sweep” wings are aircraft wings that can be adjusted to different degrees of ...

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 ...