Mailing List flyrotary@lancaironline.net Message #18211
From: Bob White <bob@bob-white.com>
Subject: Re: [FlyRotary] Re: flow measurements
Date: Tue, 1 Mar 2005 16:47:58 -0700
To: Rotary motors in aircraft <flyrotary@lancaironline.net>

Hi Todd,

Thanks for the info.  That was also in the instruction manual I
downloaded.  I have it set up a little on the short side with a 12 inch
1 1/2 dia pipe on the input and a 6 inch on the output.  I certainly
don't want to fly with that humongus thing in there. :)  I would think
that if I decided to leave the meter in for flight, I could get a
correlation between the true reading and the reading without the
upstream and downstream pipes.

I gave Rusty the specific gravity correction factor shown for this
guage, but after thinking about it, I wonder if the same correction
factor would be used for a guage that worked on a different principle.
Would a paddle wheel guage need a correction factor?

Bob W.

On Tue, 1 Mar 2005 12:12:32 -0800
"Bartrim, Todd" <Steve.Bartrim@canfor.com> wrote:

> Hi Bob;
> This is a differential pressure device with the dial scaled
> (square root) to read in flow instead of pressure. It will create a
> small pressure (flow) loss. These can be accurate, but it is important
> to ensure a straight run for 10 dia. upstream & 5 downstream.
>
> Todd

--
http://www.bob-white.com
N93BD - Rotary Powered BD-4 (real soon)
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