Ah, so it's a Baltimar vessel indeed. Thanks!

Denis I can not say it quite ekxakt but they are either from Baltimar Neptune or from Rubin, I guess Neptune .... http://www.shipspotting.com/gallery/photo.php?lid=1529309

Well, Denis, I suspect they were yet another variation on the WED idea..Looking at the propeller on the first ship in the world with a a propeller, the SS Great Britain.(Preserved in the dock she was built in, in Bristol, England) You can see that the propeller, although radically evolved, is still, basically the same as the idea made real by Mr.Brunel..everything since has been a refinement...but never a replacement.
Will we see one in our lifetimes? I hope so. Cheers.S.

I once saw a some ship where in front of the prop there were installed blades like a non-rotating prop. Anyone, knows something about it?

Indeed, thanks to Gilmiyarov...I am enlightened! "W.E.D."
The site says it has been developed over 25 years....but again, a first for me.
Cheers.

Hi Denis, Well, as they are conical I would suggest they would tend to compress the water volume prior to striking the propeller blades...someone somewhere was obviously thinking of the principles of a jet engine? A sort of turbine effect. I must say though, it's a first for me...never seen that idea before.
(I'm going now to look at the link suggested by Gilmiyarov.......) Cheers. S.

Bendt, those 2 white cranes behind her - to what vessel did they belong? They look similar to those on Baltimar Supercoaster freighters.

Interesting, thanks!

Hi Denis. This is for fuel saving & reduced vibrations.
Example - http://www.schneekluth.com/en/
best regards. Evgeny.

I think it is intended to 'smooth' the flow of water to the propeller. This is supposed to increase efficiency. Not sure what it's called,however. - Tom

Anyone knows, that thing before the screw - how's it called & what's it for?