Russia's Next-Gen Fighters will Track and Detect Stealth Aircraft, Radio-Photonic Radar.

Russians are looking at a wide range of concepts including manned-unmanned teaming, directed energy weapons and hypersonics. The Russians are also looking at novel radar and electro-optical sensor technologies that seem designed to counter stealth.
One system under development for the potential new plane is a so-called radio-photonic radar capable fighter

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