Russia’s Su-57 Jet is ‘More Stealthy’ with New Air Intake Grille

Russia has managed to lower the radar signature of its first stealth jet, the Su-57, by adding a new grille to the air intakes. Photographs of the modified jet with coaxial radial grating were shared by the Russian media today. The grating is made of radar absorbing material and is placed in the air intakes of the Su-57. In comparison, Lockheed Martin has used an S-channel design for the intakes of the F-22 aircraft to reduce the direct frontal transmission of radar by the engine compressor blad

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