Sepheronx, it is a derivative of this:

http://www.freepatent.ru/patents/2482149

It’s not. T-50 and other LO-pimped a/c here are using a family of ITAE-developed RAM.

If you care not for the video above, then perhaps this link (page 2) will strongly hint at their chosen aluminium [composite] blade strengthening method. Obviously, the radar absorption ‘by-product’ is a highly desirable property in the case of the Type-30.

https://www.google.co.jp/url?sa=t&source=web&rct=j&url=http://www.sygma.ru/files/plugin_files/nanomodifitsirovannye_metall.pdf&ved=0ahUKEwjFqqDgytDOAhWKIMAKHUfnA-EQFggdMAE&usg=AFQjCNE3_6_5gnJoxZIEse7-dSLwWhASvw&sig2=NIRgdILSk0YzmAF6u3S_4A

If you don’t know, for many years here Rosnano is a synonym for loud declarations, fancy powerpoints and, mainly, blowing the money.
Once more, you are making too far fetching conclusions from the wishful thinking of some and publications that have little connection to the actual subject.

Jo, I’m just trying to tell you (as I did 3 years ago) that let’s say not all of the Northrop Grumman patents issued in last 5 years have direct relationship to B-21. As well not all of the patents and papers issued by VIAM, CIAM, ODK, Saturn, UMPO have ties to PI.
Not all that fancy videos produced by scabs from Rostech or Rosnano have impact on real life. Etc.

Some placeholder art from BAE
[ATTACH=CONFIG]246618[/ATTACH]

NASA classify 5th gen fighters as moderate low observable (MLO)

What NASA has to do with this? This is McDonnell Douglas study.

Either the wording “Indian variant” is basically a discrete way of saying ‘Stage 2 prototypes’…or the differences between the Russian and Indian types is more fundamental than just ‘source code’.

“…as well as when developing the possibility of expanding the scope of PMC composites in existing products“

Tech gremlins. He was advised to switch off windshield heating after report on cracks.
Bogdan surely would mention birdstrike to tower, which he did not, so let’s dismiss that theory at early stage.

if it has sense on, say, F-16 – why it has not on J-20?