Mailing List flyrotary@lancaironline.net Message #12850
From: Russell Duffy <13brv3@bellsouth.net>
Subject: RE: [FlyRotary] EWP Testing
Date: Fri, 12 Nov 2004 20:56:09 -0600
To: 'Rotary motors in aircraft' <flyrotary@lancaironline.net>
Message

I don't see what condition could possibly give me a 20 GPM flow from this pump.

Hi again.  I was just thinking about this, and wondering how they get the flow ratings that they give.  What would happen if you connected the inlet, and outlet together, with a hose, completely filled with water.  Of course you could only measure the flow with a flow meter, but would this condition show a higher flow than pumping from one container to another?  
 
If it would be higher, then it could actually be a more relevant test, since that's about what we do with the engine.  We certainly have more restriction than a simple pipe would have.  
 
Rusty (sorry everyone had to scroll down one whole line to read my bottom post) 



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