flyrotary@lancaironline.net Mailing List Archive

Cant help you there Ed, but I can tell you this. The inlet and exit on Strega, the unlimited Reno racer, which is a highly modified P-51, is even smaller than stock. Strega probably produces two to three times the HP of a stock P-51. Many years ago when first contemplating the 13B install I walked around the Reno pits with a tape measure and took a bunch of notes (which I've long since lost).

Another interesting tidbit about Strega is the inlet eliminates the boundary layer splitter found on the stock Mustang which is supposed to be so necessary.

Having said all that, I still think its easier/better to keep the cooling system under the cowl in most cases. More likely to come up with something that works out of the box, and I'm sure it works better during extended ground runs/taxi, something even stock Mustangs have a problem with.

Mike Wills

RV-4 N144MW

From: Ed Anderson

Sent: Monday, January 11, 2010 11:42 AM

To: Rotary motors in aircraft

Subject: [FlyRotary] Re: P-51 Scoop (Radiator/Oil Cooler)

Boy, they really skinny down the inlets and exits on that P 51 duct. If you ever come up with the dimensions of the radiator I would like to know them. I’d like to try and calculate some of the airflow parameters in the duct while at 400 + Mph to see how much power it would theoretically dissipate based on air flow alone..

Ed Anderson

Rv-6A N494BW Rotary Powered

Matthews, NC

eanderson@carolina.rr.com

http://www.andersonee.com

http://www.dmack.net/mazda/index.html

http://www.flyrotary.com/

http://members.cox.net/rogersda/rotary/configs.htm#N494BW

http://www.rotaryaviation.com/Rotorhead%20Truth.htm

From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Thomas Mann
Sent: Monday, January 11, 2010 11:58 AM
To: Rotary motors in aircraft
Subject: [FlyRotary] P-51 Scoop (Radiator/Oil Cooler)

I’m still on my quest for information to improve on my design of my P-51 scoop. I did acquire an accurate drawing that is a true scale rendering of the scoop and the diffuser. I figured I’d better share it. It’s a little difficult to find.

I apologize for the quality of the drawing. It’s a print from digital rendering from a microfiche of the original blueprints from North American. It’s enough for me to transfer to CAD and then scale to my application. Interesting stuff.

I scaled it down but it’s too big to attach so please use the link below:

http://forum.canardaviation.com/attachment.php?attachmentid=4674&d=1263224869

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