That skin coating, painting, and material on the jet exhaust are all top secret material that until i post this, no other country knows the detail about, even US allies (they got the βexport versionβ). Russia can built better jet performance wise but stealth? They arenβt comparable in RCS. Su 57 still have 6x the RCS of F35 and 15x the F22. The coating and the nozzle exhaust are the only thing they still canβt figure out.
Why would they need a plane to re-engineer that? They can just look at the intel and plans our dual-citizen senators and reps give them. Far easier.
That skin coating, painting, and material on the jet exhaust are all top secret material that until i post this, no other country knows the detail about, even US allies (they got the βexport versionβ). Russia can built better jet performance wise but stealth? They arenβt comparable in RCS. Su 57 still have 6x the RCS of F35 and 15x the F22. The coating and the nozzle exhaust are the only thing they still canβt figure out.