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Date: Sat, 06 Nov 2004 23:13:58 -0500
Subject: Re: [FlyRotary] Re: EWP Info
From: Bulent Aliev <atlasyts@bellsouth.net>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
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On 11/6/04 10:39 PM, "Bob White" <bob@bob-white.com> wrote:

> On Sat, 6 Nov 2004 20:52:55 -0600
> "Russell Duffy" <13brv3@bellsouth.net> wrote:
> 
>> Hi Bob, somehow these numbers do not pass the "smell test". There is
>> no way you can pump 20 GPM with the back pressure in the system on 5
>> Amps alone. Larry's observations below make sense. A little air blower
>> motor moving air uses 5 Amps. Bulent
>> 
>>  
>> Hi Bulent,
>>  
>> You're starting to sound like a disbeliever.  We're not going to have
>> to banish you to the other list are we :-)
>>  
>> Rusty (I believe)
>> 
> 
> Now now!  Let's not have any banishing around here. :)
> 
> I don't know what the numbers mean but I will let you know how it works
> out.  Todd reported his pump measured 4.3 amps at 9.3 gpm (if I
> understood his last post).  Mezarie may be reporting the "no load"
> pumping capacity, or Summit may have the current wrong.  I should have
> the pumps sometime next week.
> 
> Any idea what a ball park figure for the pressure drop across the engine
> and an evap core would be?  I could simulate it on the bench.
> 
> Bob White
> 


I did test  2 GPM gear pump 12V. Maintaining 30 psi of pressure, needed 7
Amps. If Bob can connect the engine block and the radiators inline with
Flow meter and Amp meter, we can get some realistic figures. If he can move
25 GPM through the system on 5 Amps, I will switch to EWP ASAP.
Believe me I don't want to be another Paul Lamar :)
Bulent