Return-Path: Received: from fed1rmmtao12.cox.net ([68.230.241.27] verified) by logan.com (CommuniGate Pro SMTP 4.2.5) with ESMTP id 522675 for flyrotary@lancaironline.net; Mon, 08 Nov 2004 10:58:22 -0500 Received-SPF: none receiver=logan.com; client-ip=68.230.241.27; envelope-from=ALVentures@cox.net Received: from BigAl ([68.107.116.221]) by fed1rmmtao12.cox.net (InterMail vM.6.01.04.00 201-2131-117-20041022) with ESMTP id <20041108155752.YWOT3296.fed1rmmtao12.cox.net@BigAl> for ; Mon, 8 Nov 2004 10:57:52 -0500 From: "Al Gietzen" To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Re: EWP Info Date: Mon, 8 Nov 2004 07:58:04 -0800 Message-ID: <000001c4c5ab$bbc0f100$6400a8c0@BigAl> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0001_01C4C568.AD9FFAF0" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.6626 Importance: Normal In-Reply-To: X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 This is a multi-part message in MIME format. ------=_NextPart_000_0001_01C4C568.AD9FFAF0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Subject: [FlyRotary] Re: EWP Info =20 That should give you enough flow to run safely to about 25-30 hp. =20 Al=20 =20 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 :-) =20 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 = :-) =20 Cheers, Rusty (undaunted by disbelievers)=20 =20 Rusty; =20 That's going to be little tough; I did the calculation in my head:-). I'm not saying you can't run to higher power - in fact, I'm sure you = can. The key word is "safely", and maybe one should add "long-term". Unless = you are measuring some internal temps, how do you know when you start = getting boiling around the plugs, or high thermal stresses in other areas? =20 Just something to consider. When you do your runs, I'd suggest = monitoring inlet and outlet temps. If they get to be more than 40-50 F different, I wouldn't bother going any further. Why risk it? =20 Al (question everything; go ahead, prove me wrong) ------=_NextPart_000_0001_01C4C568.AD9FFAF0 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Message

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) 

 

Rusty;

 

That’s going to be little = tough; I did the calculation in my headJ.

I’m not saying you = can’t run to higher power – in fact, I’m sure you can.  The key = word is “safely”, and maybe one should add “long-term”.  Unless you are measuring some internal temps, how do you know when you start getting = boiling around the plugs, or high thermal stresses in other = areas?

 

Just something to consider.  = When you do your runs, I’d suggest monitoring inlet and outlet temps. = If they get to be more than 40-50 F different, I wouldn’t bother going any further.  Why risk it?

 

Al (question everything; go = ahead, prove me wrong)

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