Mailing List flyrotary@lancaironline.net Message #41838
From: Dale Rogers <dale.r@cox.net>
Subject: Re: [FlyRotary] Re: Emailing: Inclinded Radiators.doc
Date: Sat, 08 Mar 2008 11:34:32 -0700
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Russell Duffy wrote:
Message
It basically states that inclining a radiator from 0 deg to 20-30 deg will dec   rease 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 
 
Hi Ed,
 
That is pretty interesting.  Now that I think of it, we've had a few people using extreme angles either blow, or beside the engine.  Have any of those people had cooling issues?
 
Cheers,
Rusty (watching a near-blizzard outside)

That's pretty much what nearly all the water-cooled canard fliers are doing.  Not much room for any other strategy - with off-the-shelf radiators, anyway.


Dale R.
COZY MkIV  #0497
Ch. 13


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