Message-ID: <02f101c3ba15$9efc24b0$2a2dbbd0@7n7z201>
From: "William" <wschertz@ispwest.com>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
References: <list-2782301@logan.com>
Subject: Re: [FlyRotary] Re: EWP pressure or flow
Date: Wed, 3 Dec 2003 21:20:48 -0600
MIME-Version: 1.0
Content-Type: text/plain;
	charset="iso-8859-1"
Content-Transfer-Encoding: 7bit

Sorry, that is not correct. There is a pressure drop around the circuit that
you have to overcome. I published some curves of flow vs pressure a couple
of times to the list, measuring the flow from a Mazda pump flowing through a
mazda block, also delta P across the evaporator cores.

Bill Schertz
KIS Cruiser # 4045
----- Original Message ----- 
From: "Eric Ruttan" <ericruttan@chartermi.net>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Sent: Wednesday, December 03, 2003 2:58 PM
Subject: [FlyRotary] Re: EWP pressure or flow


> Head pressure in a engine will be near 0
>
> ----- Original Message ----- 
> From: <echristley@nc.rr.com>
> To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
> Sent: Wednesday, December 03, 2003 3:07 PM
> Subject: [FlyRotary] Re: EWP pressure or flow
>
>
> > I finally got through to the archives, and found the numbers stated as
one
> EWP producing 45 liters/min and two in series producing ~56 liters/min.
But
> against what head pressure?
> >
> > I searched all over Davie-Craig's website.  While they quote flowrate
all
> over the place, they never state how much head pressure these pumps will
> create.  I'm still trying to work up feasibility numbers for relocating
the
> rads to the back of the plane, and expect much higher than normal back
> pressure.  Is there a way to calculate out these sort of numbers?