Mailing List flyrotary@lancaironline.net Message #30637
From: Ernest Christley <echristley@nc.rr.com>
Subject: Re: [FlyRotary] Re: NACA's, Cooling and Sport Aviation Mag..
Date: Fri, 10 Mar 2006 16:37:21 -0500
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
James wrote:

Ernest, I did not see that specific paper.  Do you know an easy to find it?  Thanks.

Regards; James Freeman

Ernest Christley wrote:

James wrote:

Second point:  I believe that a reversed direction NACA scoop would make an excellent low drag exit port for the cooling air stream.  If anyone tries it, please let us know your findings.



According to the article, NACA tried it.  It didn't work very well.  A straight sided 'boxy' exit works much better.


The Sport Aviation article referred to it.  I took the author's word for it because I seem to recall having read such a paper before.   I would have to search the NACA site to find it again.

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