Alright since u obviously didn't read up on it and are just basically pulling sh*t out of ur ***
This is what u said in post 51...
1) "Shaping the nozzles only reduces edge diffraction, which is not the biggest source of returns from engines. Engines are a huge source of returns due to cavity resonance. The insides of the engine have to be designed for stealth using blockers and other devices."
and I told u to read up on S ducts...bcuz J20 reportedly has S ducts...but u didn't and I'm not surprised...so here is a research paper from Virginia tech. This study was carried out in collaboration with Lockheed Martin and I'm quoting directly from it...
2) "A large reduction in RCS can be realized by eliminating the engine fan face as a radar return source. The fan face can be hidden from radar by developing an inlet duct that is offset so that there is no direct line of sight from the entrance of the inlet duct to the engine fan face. This prevents a direct path for radar beams to strike the engine fan face and return to the receiver. These ducts are included in a general class of serpentine inlet ducts"(aka S ducts)
Source
Was that too much for u to digest? Can u comprehend that rather long write up...just read 1 and 2 above one after another so that u see how 2 directly shuts down ur stupid argument 1.
Again...J20 ALREADY HAS S DUCTS...so that only leaves the nozzles that are not yet stealthy.
Wtf is a 5th gen engine? U r just gonna go around making up terms now that u r coming up empty?
...
Based on my past interactions with u, I have a feeling u r going to reject this research paper and counter it with more of ur BS opinions.