Mailing List flyrotary@lancaironline.net Message #5190
From: Russell Duffy <13brv3@bellsouth.net>
Subject: RE: [FlyRotary] Series vs parralel rads
Date: Thu, 8 Jan 2004 17:50:21 -0600
To: 'Rotary motors in aircraft' <flyrotary@lancaironline.net>
Message
Neil  (Giving Rusty something else to think about) 
 
Thanks, that's just what I need :-) 
 
Actually, I'm not committed to series or parallel at the moment, so I'll be interested to hear any comments about the benefits of parallel cores.  I'm sure parallel "can" be better, if the water behaves, but if it doesn't, you probably lose all the extra cooling margin.  I suspect that it can be better than your figures indicated.  With less restriction, there will be a greater flow rate.  Also, efficiency is improved in parallel, because the hottest water contacts a larger area of radiator.   
 
Series is certainly easier, and cheaper if you're using AN hoses.  
 
Cheers,
Rusty (probably series)   

             

           

 

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