Onishi OS-G3

[Stargazer]

From Flight International, 24 September 1977:

Next best thing to manpower?
A Japanese glider pilot, attempting to overcome his reliance on remote tows, has fitted six model-aircraft engines to an ultralight glider and, in defiance of conventional aeronautics, the Onishi OS-G3 flies. (...) Not content with his achievements already, Onishi is now looking at electric power.

Quite a pioneer in his own way... What I do not know is whether he used an existing glider design or if the design is his own.
Full article and specs in attachments.

 

[blackkite]

Hi!

https://www.fromjapan.co.jp/japan/jp/auction/yahoo/input/p1102044625/

 

[fortrena]

Some (accurate?) info on Yuichi Onishi's activities can be found at https://www.exal.info/oonishi.html. There is also something at http://hikokikumo.net/a3407-03-SubaruOmoide.htm

The content of those webpages can be translated, more or less accurately, via https://translate.google.com/

 

[hesham]

Hi Stargzer,

it was built by a firm JEAA (Japan Experimental Aircraft Association).

JAWA 1977-87.

 

[Stargazer]

it was built by a firm JEAA (Japan Experimental Aircraft Association).

NO. That's not what your image says. It clearly indicates that the JEAA is NOT a firm, but merely a chapter (local branch) of EAA International. It's an association of aircraft enthusiasts. The projects listed are by members of the JEAA.