drift bow to wind

i highlighted copied and pasted into google search this url
http://www.yamaha-motor.jp/marine/index.html
and then clicked translate in results to get a "kind" of english
and went to fast 26 technical when i clicked on the underwater hull lines

it seems this is their chosen way to drift fish and keep the bow into the wind

this has me intrigued, its new to me
has anyone ever seen or used a twin rear sail arrangement like this
adjustment seems to be on how far apart you spread the 2 booms and sails

 

I think its for stability, but don't qoute me on that.

 

I have seen a similar system on a cruising Yawl , to keep the boat steady at anchor.

Most boats ventilate best when pointing into the wind , and it seemed to do just that very well.
A similar setup was used on some self steering gears "Says Rig".

FAST FRED

 

It's not as much keeping the bow into wind, as keeping the stern downwind. It is similar practice as using a sea anchor and small storm sail on yahcts.

Tm B.

 

tim, thats a better way to describe it..stern downwind

i'm just wondering what they feel is an advantage, because it is a lot to go to, over a series drogue set up
they even use them on large craft, in this pic you can see the 2 booms from the mast better
so the 2 sails are set up as a v to create adjustable wind drag and not drive the boat
is it also used in a storm for seakeeping? by its self or with drogues



the 2 booms

 

Looks like a gimmick to me! A single sail would do the same trick, fishermen in the North Sea have been doing it with a single sail for years! keeps the head up and less 'roly'. But Hell what do I know - I'm sure somebody with a dregree in counting will produce a whole load of doodoo to prove it!