Counter-rotating double fan

So on a scrounging mission today at my local recycling place, I found this cool fan, its an 80mm fan but with 2 counter-rotating blades. the front one has 5 blades, and the rear 3. It has 2 motors in it, and moves a lot of air pretty quietly. I dont have a good way to truly test the airflow, but its going into the case now to see if the temps drop. currently about 40c load, we'll see...
not bad for a buck a pound.

Kewl fan! I've heard of those before. Let us know how it does.

whoa... thats thick..
whats the company name/model number, could probably look it up

Korndog said:

whoa... thats thick..
whats the company name/model number, could probably look it up

Click to expand...

Its a Delta, they make 80mm and 92mm versions that are counter-rotating. JMC also makes a couple 40mm x 50mm x 32 or 38mm varities, Thats a cool Delta fan you found today, I suggest running it at 7 volts or lower or the noise will be unbearable.

http://www.jmcproducts.com/products/dc_fans/40x50x32mm.shtml

http://forum.oc-forums.com/vb/showthread.php?s=&threadid=245469

This is the exact fan I found:
http://www.delta.com.tw/products/dcfans/pdf/GFB8080508.pdf