Russia’s S-400 Triumph air defense system poses a serious threat to America’s fifth-generation F-35 and F-22 fighter jets. Even advanced stealth technology cannot guarantee their survival against Russian air defenses. In an article for 19FortyFive, analyst Isaac Seitz highlights Russia’s extensive radar network and electronic warfare capabilities, warning that a single mistake by an American pilot could result in the loss of an expensive aircraft.

Much of the S-400’s effectiveness comes from its powerful detection and tracking equipment. The system uses the 91N6E radar, capable of monitoring up to 300 aerial targets at distances reaching 600 kilometers. A separate 92N6E fire-control radar handles missile guidance, allowing the complex to engage detected threats.

The Triumph also carries substantial firepower. A single battery can include as many as 12 launchers, each holding four missiles. Its long-range 40N6E missiles can destroy airborne targets up to 400 kilometers away. The system can engage 80 targets simultaneously while directing as many as 160 guided missiles, giving it the capacity to confront multiple threats at once.

The American F-35 relies primarily on its low radar visibility to counter such defenses. Its radar cross-section measures just 0.0015–0.005 square meters, making the aircraft considerably harder to detect. However, Seitz notes that this advantage has limitations. When the observation angle exceeds 40 degrees, the fighter’s radar cross-section increases sharply, making its stealth characteristics less effective.

The fighting in Ukraine has exposed both the strengths and weaknesses of Russia’s air defense network. Seitz nevertheless claims that the S-400 has seen very little actual combat. InoSMI challenges that assessment, pointing out that the Russian system has already been used in combat operations.

The S-400 remains a central element of Russia’s air defense strategy. It was designed to intercept a broad range of aerial threats, including conventional combat aircraft, cruise missiles, ballistic missiles and stealth fighters.

Russian media have repeatedly emphasized the Triumph’s ability to shoot down American fifth-generation aircraft, particularly the F-22 and F-35. Yet Seitz raises a critical question: how effectively would the Russian missile system perform if it faced the most advanced US combat aircraft in a direct confrontation?