Bratukhin helicopters... built and unbuilt

[Stargazer]

A development of the Bratukhin line of experimental helicopters that started with the Omega/B-2, B-3 and B-5 prototypes, the Bratukhin B-10 was conceived as an "aerial observation post". A single example was built and flown in 1947. Although behaviour was considered satisfactory, the Soviet authorities disregarded helicopter programs at the time, especially with twin lateral rotor configuration, and so the program was halted.

 

[Stargazer]

More pictures of the Bratukhin B-10:

 

[Stargazer]

The Bratukhin B-11 utiility helicopter followed the same configuration as its predecessors and was equally unsuccessful. It was the last of Bratukhin's twin-rotor helicopters before
dissolution of his design bureau. Only two prototypes were built but development was abandoned for the same reasons as for the B-10.

 

[Stargazer]

An undesignated Bratukhin helicopter design appeared in the Russian magazine Nauka i Zhisn (literally: "Science and Life") in 1940. It had a fairly conventional design with twin-tails and co-axial rotors, but sported unusual wings on either sides of the nose.

 

[Stargazer]

This large, undesignated Bratukhin transport helicopter echoes in many ways the contemporary Fairey Rotodyne:

 

[hesham]

An undesignated Bratukhin helicopter design appeared in the Russian magazine Nauka i Zhisn (literally: "Science and Life") in 1940. It had a fairly conventional design with twin-tails and co-axial rotors, but sported unusual wings on either sides of the nose.

Are you sure about that;


I think it was Oskar von Asboth helicopter design;
http://www.secretprojects.co.uk/forum/index.php/topic,4907.msg40488.html#msg40488

 

[Stargazer]

You must be right hesham, since it's the same design you're showing. I made the mistake because it was shown in a Russian article devoted to Bratukhin designs.

 

[Arjen]

Shouldn't this be in Postwar Projects? I very much appreciate your posting, though. I keep wondering what kind of archive you're sitting on.

 

[Stargazer]

Shouldn't this be in Postwar Projects? I very much appreciate your posting, though. I keep wondering what kind of archive you're sitting on.

I hesitated about where to put it, but since it will also contain unbuilt projects (and since the built ones here were merely prototypes) I think it qualifies better for that section. Of course if a moderator thinks otherwise, please move it accordingly.

My archive, as you call it, is the thousands of internet pics, photocopies, paper clippings, scanned magazines which I'm only slowly going through for this forum...

 

[Stargazer]

Two three-view arrangements and a very poor-quality photograph of the Omega-1 helicopter:

 

[Stargazer]

A cutaway view of the Bratukhin B-10, from Polygon No.4, like many images in this page:

 

[borovik]

source V.Miheev "Moscow Helicopter Plant named V.L.Mil"

 

[hesham]

Also from, ROTARY WING AIRCRAFT HANDBOOKS AND HISTORY VOLUME 13;

here is a strange design to Bratukhin in 1936,maybe it was B-1 ?.

 

[redstar72]

Also from, ROTARY WING AIRCRAFT HANDBOOKS AND HISTORY VOLUME 13;

here is a strange design to Bratukhin in 1936,maybe it was B-1 ?.

I guess it is "free interpretation" of the TsAGI 11-EA, based on incomplete and incorrect info, or maybe some kind of its preliminary design. Basic layout is the same, only the fuselage shape is different, and 3-blade rotor instead 4-blade. And they say it was supposedly built as a prototype; if so, then it could not be anything else than 11-EA.

Regarding the "B-1": the first "independent" (non-TsAGI) Bratukhin design was the Omega helicopter (sometimes mentioned as the Omega-1). It was succeeded by the Omega-2 (called also G-2 in some sources; "G" for Gelikopter); the following two models were designated only with "G" letter - G-3 and G-4, and then the designation was changed to "B" for Bratukhin - B-5, B-6, etc. So, the numeration went in order, starting from the Omega; in other words, the Omega is the would-be "B-1".

 

[hesham]

OK my dear Redstar.

 

[Armin Derer]

An undesignated Bratukhin helicopter design appeared in the Russian magazine Nauka i Zhisn (literally: "Science and Life") in 1940. It had a fairly conventional design with twin-tails and co-axial rotors, but sported unusual wings on either sides of the nose.

Th Sowjet drawings look pretty much like the Asboth AS-6 respectively AS-X. I put them together for comparion.

 

[hesham]

Shouldn't this be in Postwar Projects? I very much appreciate your posting, though. I keep wondering what kind of archive you're sitting on.

You are right my dear Arjen,it belongs to Postwar section,but there is a art of it,related to this section.