TsAGI windtunnel models related to I-90/MFI program?

[overscan (PaulMM)]

Shown on Russian TV, video posted online by Paralay

Looks like basic planform research for fighters.

 

[overscan (PaulMM)]

One of those wing configurations looks somewhat like the Dornier Rautenflugel...

 

[hesham]

Dear overscan,

what is the Dornier Rautenflugel ?.

 

[overscan (PaulMM)]

Here- its made from two wings joined together, like a high tech biplane.

 

[hesham]

Dear overscan,

the wing of Dornier Rautenflugel was like UTVA-71 project of light aircraft.

 

[Gavin]

I'm fascinated by the design seen on the top- and bottom left, of the first set of photos. Planform alignment suggests a significant degree of stealth. Tail configuration reminds me of the MiG-25. Forward fuselage could be mistaken for an advanced version of the MiG-29. Air intakes looks similar to what we would have expected for the production 1.42. However, the scale might seem a little small for the I-90/MFI. It's wild speculation, but I can't help but wonder if it might be related to PAK FA.

Has anyone seen anything like it before?

Also, it's hard to tell, but in the middle-bottom picture, could the design being tested be similar to this?

 

[paralay]

http://paralay.narod.ru/sh90.html

 

[Deino]

What's this ???

 

[flateric]

It has no any relation to MFI. This is from TsAGI booth backstage at MAKS 2015.
Another in-house 'thematic model' of generic advanced fighter design