It would be very interesting to know the weights for this project. The size.

Very Star Trek looking. It looks like someone cut the top off of a US CH-46 /47 Chinook model, molded in a drop tank from a larger scale model for the body, stuck some extra fins to the bottom for style, then added on a chin turret as an afterthought.

It's a neat enough model but the line drawing clearly shows a more CH-46 "Chinook" style body.

In the Nato reporting name style it would probably be called a "Chinookski". (at least informally)

Is it attack helicopter?

Page lacks info. Here is info I wrote for wikipedia:

The V-50 was an armed tandem-rotor transport helicopter project from Kamov, with a projected speed of 400km /h. The project was abandoned in the late 1960s and only a model exists.

http: / /en.wikipedia.org /wiki /Kamov_V-50

The blades can never hit; one rotor turns in the opposite direction. They can occupy the same plane (some actually do) without interference. Counter-rotating blades also cancel the torque reaction that usually requires a tail-rotor. Even twin engine designs like Mi-12 and V-22 Osprey have linked rotors.

Actually the blades are lifted in flight and are set to a specific angle so as not to hit

it looks like the blades will hit each other