Received-SPF: pass
 receiver=logan.com; client-ip=66.133.182.164; envelope-from=canarder@frontiernet.net
Message-ID: <4223F8C5.10805@frontiernet.net>
Date: Mon, 28 Feb 2005 23:08:21 -0600
From: Jim Sower <canarder@frontiernet.net>
User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7) Gecko/20040514
MIME-Version: 1.0
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Subject: Re: [FlyRotary] Re: [FlyRotary]actual water flow   was   Belt rumnations;
 soliciting Opinions of racers please....
References: <list-763453@logan.com>
In-Reply-To: <list-763453@logan.com>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit

Rusty,
I only heard today that Al G. had flow data on his dyno.  He might have 
some ideas around this.  As to head pressure, I believe I was taught 
that head pressure only exists in an open system.  In a closed system it 
all cancels out going around the circle.
But that was a long time ago ... Jim S.

Russell Duffy wrote:

> What we
> need is some expire mental measurement of flow rate under actual
> conditions (which will involve a flow meter in the system) and then,
> with the engine at rest (the pump is the only moving part in the
> system), we can see how much current it takes to achieve that flow rate.
> Sadly, the pivotal instrument, a flow meter that doesn't disturb the
> system too much, is probably not available.  If someone could come up
> with a flow meter in a 1.25" line, we could do some expirements.
> Other than that, we're guessing at numbers like PL and the bumblebee
> folks ... Jim S.
>
> I agree.  Everyone keeps talking about all this head pressure that the 
> pump is having to face.  It must be stealth pressure, because my 
> pressure gauge doesn't see it. 
>
> As I type, I'm also looking for a suitable flow meter, and I'm open 
> for suggestions.  The plan will be to rig this into my system, and 
> find out once and for all what sort of flow I've got with both the 
> mechanical, and EWP.   I doubt there's any way to have this in place 
> during flight, so Ernest will say it's not valid :-) 
>
> So don't make this too painful, but lets here some options for 
> suitable meters. 
>
> Rusty (Todd has already done all this of course)
>