Mailing List flyrotary@lancaironline.net Message #12738
From: William <wschertz@ispwest.com>
Subject: Re: [FlyRotary] Re: EWP Info
Date: Mon, 8 Nov 2004 22:07:13 -0600
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Message
Todd got 9 gal/min flow rate through the rads, I sent some calculations that indicate that you have to have a substantial temperature drop across the radiators, (or rise across the engine) to TRANSPORT the heat from the engine to the radiators. This is possible, but only if the air is cool enough to allow you to get this bigger water delta-T.
 
 
Bill Schertz
KIS Cruiser # 4045
----- Original Message -----
Sent: Monday, November 08, 2004 7:53 AM
Subject: [FlyRotary] Re: EWP Info

That should give you enough flow to run safely to about 25-30 hp.

 

Al 

 

Let's see, I'm pulling 3.6 amps, and Todd is pulling 4.3 amps.  What does your calculator say he can safely cool?  Maybe 35 hp ???   Hmmm, I sure thought his turbo engine would be putting out more power than that :-)

 

I'll run a ground test next weekend, and will have a pretty good idea of how it compares to the mechanical pump.  I'm absolutely confident that I can cool far more than 30 hp, and if you could hear the flow of water through the engine when the EWP is on, you'd throw that calculator in the trash :-)    

 

Cheers,

Rusty (undaunted by disbelievers) 

 

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