flyrotary@lancaironline.net Mailing List Archive

Ernest,

Intended to add this photo..........Check the blade orientation..............

Kelly Troyer
"DYKE DELTA JD2" (Eventually)

"13B ROTARY"_ Engine
"RWS"_RD1C/EC2/EM2
"MISTRAL"_Backplate/Oil Manifold

"TURBONETICS"_TO4E50 Turbo

From: Kelly Troyer <keltro@att.net>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Sent: Fri, May 27, 2011 8:41:44 AM
Subject: [FlyRotary] Re: Blower design

Ernest,

The steel Corvair fan appears to be an early one with slanted blades that will pump

best in the correct direction (clockwise from your cockpit) but again no OD or ID......

Perhaps Pat Panzera knows the Corvair fan dimensions............

Kelly Troyer
"DYKE DELTA JD2" (Eventually)

"13B ROTARY"_ Engine
"RWS"_RD1C/EC2/EM2
"MISTRAL"_Backplate/Oil Manifold

"TURBONETICS"_TO4E50 Turbo

From: Pat Panzera <editor.contactmagazine@gmail.com>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Sent: Fri, May 27, 2011 8:27:59 AM
Subject: [FlyRotary] Re: Blower design

FWIW, the Corvair guys regularly throw away one-piece magnesium cooling fans that are geared to spin faster than engine RPM, which is red lined at or a little over 5000 rpm.

http://cgi.ebay.com/ebaymotors/60-4-Corvair-Magnesium-Blower-Fan-RARE-USED-/290487866240

They also made a steel unit:

http://www.google.com/imgres?imgurl=http://cdn2.iofferphoto.com/img/item/171/240/045/dXva.jpg&imgrefurl=http://www.ioffer.com/si/gallery%2Bexcellent&usg=__0NS_PTSi9_466uVWQQCPeDqrmho=&h=603&w=800&sz=38&hl=en&start=50&sig2=LJuDUf2MyogJNpb5-ArbJA&zoom=1&tbnid=PriKgVFSlUdxLM:&tbnh=158&tbnw=218&ei=mKbfTZntGcHiiAK2xvXKCg&prev=/search%3Fq%3Dcorvair%2Bfan%26hl%3Den%26safe%3Doff%26biw%3D1066%26bih%3D512%26tbm%3Disch&itbs=1&iact=hc&vpx=551&vpy=200&dur=1199&hovh=195&hovw=259&tx=177&ty=95&page=6&ndsp=8&ved=1t:429,r:6,s:50&biw=1066&bih=512

On Fri, May 27, 2011 at 6:06 AM, Ernest Christley <echristley@nc.rr.com> wrote:

Yes, I did.
Takeaways:
-the fan will flow between 10k and 12k cfm at 6000rpm
-the fan will hold together up to 10k rpm

What I couldn't find were any technical drawings to derive dimensions from.

On 05/26/2011 11:59 PM, Kelly Troyer wrote:

Ernest,

You may find this interesting..................

http://www.offroadvw.net/tech/wes/fan.html

Kelly Troyer
"DYKE DELTA JD2" (Eventually)

"13B ROTARY"_ Engine
"RWS"_RD1C/EC2/EM2
"MISTRAL"_Backplate/Oil Manifold

"TURBONETICS"_TO4E50 Turbo

From: Ernest Christley <echristley@att.net>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Sent: Thu, May 26, 2011 9:44:45 PM
Subject: [FlyRotary] Re: Blower design

I found the thickness is 37mm (1.46"). I could stack two in the space I have if the OD is around 10.4" and the ID is just over 6.5".

On 05/26/2011 10:39 PM, Ernest Christley wrote:
> 4Hp is what I was expecting to spend to get a 10% increase in pressure. That would give me between 15 and 20Hp.
>
> Does anyone here work on Volkswagens? They have a fan to cool the engine that looks like the shape I need, but I'm clueless as to the dimensions. Here is what I'm talking about:
>
> http://www.chircoestore.com/catalog/product_info.php?cPath=109_115_124&products_id=3295&osCsid=hclq20d2slrq1qh3eec132ii90
>
>

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