British/Italian Tempest (GCAP) Fighter : News and Discussion

AFAIK the only jet to have such fine mesh grill is F-117. It would require de-icing. IDK how exactly it was done in F-117 but generally it is done by engine bleed air (hot). So it should not increase IRS.
What about supersonic performance impact by such mesh?
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What are these things? Side radar array?
It is side array antenna indeed. Conformal ones. The future of all fighters.