Nameless Russian (civil) compound helicopter

[boxkite]

Can anybody identify this Russian helicopter design with additional forward propulsion? It’s from the “Bulletin of the Russian Aviation Research Group of Air-Britain” No. 155, p. 36.

(Sorry for the bad quality.)

 

[Tophe]

Obviously, this is a derivative of the Kamov Ka 26/126/226/228 but I don't know its code. Ka 326? That would be pleasant.
Question: as this looks more to the original 26 than the final 228, do you know the date of this drawing?

 

[boxkite]

Unfortunately, there is no date. Not later than September 2003 (this is the publication date of the mentioned bulletin.)

Sorry .

 

[Vahe Demirjian]

The book Unflown Wings says that this design may have been jointly conceived with RKIIGA (Riga Red Banner Institute of Civil Aviation Engineers) by Kamov.