Mailing List flyrotary@lancaironline.net Message #4912
From: Russell Duffy <13brv3@bellsouth.net>
Subject: RE: [FlyRotary] Re: dual EWP plumbing?
Date: Tue, 23 Dec 2003 09:12:34 -0600
To: 'Rotary motors in aircraft' <flyrotary@lancaironline.net>
Message
Hmmm. I dunno, Rusty. My intuition (which may or may not be useful) is that you'd be better designing for normal operation in the event of a pump failure.  
 
I understand what you're saying.  I keep floundering back and forth between the two methods.  Realistically, I don't expect to have a pump failure, which makes me reluctant to use the second EWP as a pure standby if I can find some operational benefit to using it routinely. 
 
Of course, the disadvantage, is that if they're plumbed together and you get a leak, you'll loose all you're coolant.  I guess it depends on how "operational" you'd be on one core and one pump. 
 
Unfortunately, if I get a leak anywhere, I'll loose all the coolant, even if only one pump is running.  If I get lucky, and the leak is in the circuit that's not running, it would probably buy me some time, but I'm sure not counting on that as an advantage.
 
Rusty (I miss Todd <g>)
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