Crazy aircraft form Belarus

[Gr.Viper]

Thanks to Epizikl's poniter I present you this

 

A short video in this item

http://www.popmech.ru/blogs/post/1395-okoltsovannyiy-samol-t/

Yes the caption at the beginnig say's it's done in 10-13m/s side wind.

 

And a totally crazy flight here

Apparently it flies only because it doesn't let go of the air.

From what I gather they have the balls to test it in most extreme wind and with car-grade petrol.

[MigBuster]

haha - rather them than me

[Lexx_Luthor]

I like it. I wonder if this is good for wing tip stalls.

[FastCargo]

Well, it's more or less a biplane with no wingtips and therefore no tip drag. However, the wing ends (for lack of a better word) would be heavy, and not provide much except lateral stability in an odd location.

 

FC

[Gr.Viper]

Judging by the way it performs a banking turn, a geat deal of its lift is generated by the prop.

 

I liked an explanation by someone of the design team, that this wing "traps the air in a tube, thus the air has nowhere to go and is forced to do its job" Oh, and they also say the plane can be easily built out of sheet metal.

[shotdown]

A ring shaped wing is not exactly a new idea: Look here

[Gr.Viper]

The idea is indeed old as PopMech article described. The point of these guys is that they built a flyable ring out of junk and an engine.