Russia's Sukhoi Su-57 Felon is widely considered the worst-performing stealth fighter. Sukhoi's own patent describes the Su-57 having a frontal radar cross-section of 0.1 to 1 m². That is comparable ...

Key Points and Summary - Russia’s Su-75 “Checkmate” promises a low-cost, F-35-style stealth fighter—but the decisive pieces remain hidden. -Renderings show a single-engine, twin-tail jet with internal ...