Mailing List flyrotary@lancaironline.net Message #41827
From: Ed Anderson <eanderson@carolina.rr.com>
Subject: Emailing: Inclinded Radiators.doc
Date: Sat, 8 Mar 2008 10:12:48 -0500
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Here is an extract out of an article on race car cooling that is very interesting about use of inclined radiators.  Unfortunately, I could not find any reference as to where this information was derived from - but, if correct, is fairly significant.
 
It basically states that inclining a radiator from 0 deg to 20-30 deg will decrease cooling and increase drag - not terribly surprising, however, the article continues saying that at approx. 55 dig of inclination the cooling effectiveness is 30% greater than a radiator with no inclination and the drag is 20% less!!!  Now I found that surprising - but, then air flow does take surprising twists (no pun intended).
 
While I find that claim very interesting - I have not found any collaborating documents.  But, thought the group might find it interesting
 
For your information
 
Ed
 
 
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