demonstration flights

When the United States developed its Fifth Generation air-superiority fighter, the F-22 Raptor, it gave the world a glimpse at a superior aircraft in terms of stealth abilities (the ability to appear invisible to radar and tracking systems) speed (top speeds are classified, though admittedly appears slower than earlier generations like the F-15), and maneuverability (the best, bar none). But military secrets are the most fleeting of all, as they say, and so the Russian Federation sought to meet and exceed the benchmarks set by the F-22, and they have done it with the new Su-57.