Return-Path: Sender: (Marvin Kaye) To: flyrotary Date: Wed, 08 Oct 2003 11:35:37 -0400 Message-ID: X-Original-Return-Path: Received: from [24.93.67.82] (HELO ms-smtp-01-eri0.southeast.rr.com) by logan.com (CommuniGate Pro SMTP 4.1.5) with ESMTP id 2628549 for flyrotary@lancaironline.net; Wed, 08 Oct 2003 09:16:27 -0400 Received: from o7y6b5 (clt78-020.carolina.rr.com [24.93.78.20]) by ms-smtp-01-eri0.southeast.rr.com (8.12.10/8.12.7) with SMTP id h98DGPLe023980 for ; Wed, 8 Oct 2003 09:16:26 -0400 (EDT) X-Original-Message-ID: <006a01c38d9e$17598dc0$1702a8c0@WorkGroup> From: "Ed Anderson" X-Original-To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: EWP - Success at last X-Original-Date: Wed, 8 Oct 2003 09:14:23 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0067_01C38D7C.90265C00" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1106 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 This is a multi-part message in MIME format. ------=_NextPart_000_0067_01C38D7C.90265C00 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable =20 From: Haywire=20 To: Rotary motors in aircraft=20 Sent: Wednesday, October 08, 2003 4:31 AM Subject: [FlyRotary] Re: EWP - Success at last Hi Marko; Full specs can be seen at http://www.daviescraig.com.au/ Last = year I did full tests on the current draw, but I can't find that info = handy right now and it's to late to look for it, but IIRC it was approx = 4amps with the inrush current only ~6amps. The web site shows max draw = 7.5amps. If I didn't have so many other things to do in the next few = weeks I'd install a volt/amp meter on the pump/controller to take = readings at various coolant flow rates and plot them on a chart with = temps; engines speed, MAP, etc... but I just don't have the time right = now. maybe in the spring. S. Todd Bartrim Turbo 13B RV-9Endurance C-FSTB http://www3.telus.net/haywire/RV-9/C-FSTB.htm Well at 7.5 amps and 13.8 volts the power consumed is approx 100 watts = which equal approx 0.134 HP. A couple orders of magnitude less power = than some "experts" had predicted would be required. Your "experiment" = has debunked another long-held myth about the amount of power required = to keep sufficient coolant flowing. Good work, Todd - a great data = point! Ed Anderson RV-6A N494BW Rotary Powered Matthews, NC eanderson@carolina.rr.com ------=_NextPart_000_0067_01C38D7C.90265C00 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
 
From:=20 Haywire
Sent: Wednesday, October 08, = 2003 4:31=20 AM
Subject: [FlyRotary] Re: EWP - = Success at=20 last

Hi=20 Marko;
    Full specs can be seen at http://www.daviescraig.com.au/ =20 Last year I did full tests on the current draw, but I can't find that = info=20 handy right now and it's to late to look for it, but IIRC it was = approx 4amps=20 with the inrush current only ~6amps. The web site shows max draw = 7.5amps. If I=20 didn't have so many other things to do in the next few weeks I'd = install a=20 volt/amp meter on the pump/controller to take readings at various = coolant flow=20 rates and plot them on a chart with temps; engines speed, MAP, = etc... but=20 I just don't have the time right now. maybe in the = spring.
 

S. Todd Bartrim
Turbo 13B = RV-9Endurance
C-FSTB
http://www3.telus.net/haywire/RV-9/C-FSTB.htm<= /P>

 

Well at 7.5 amps and 13.8 volts the = power consumed=20 is approx 100 watts which equal approx 0.134 HP.  A couple orders = of=20 magnitude less power than some "experts" had predicted would be=20 required.  Your "experiment" has debunked another long-held myth = about=20 the amount of power required to keep sufficient  coolant=20 flowing.  Good work, Todd - a great data point!

 
Ed Anderson
RV-6A N494BW Rotary Powered
Matthews, NC
eanderson@carolina.rr.com
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