Return-Path: Received: from [24.25.9.103] (HELO ms-smtp-04-eri0.southeast.rr.com) by logan.com (CommuniGate Pro SMTP 4.2) with ESMTP id 363264 for flyrotary@lancaironline.net; Fri, 13 Aug 2004 00:41:42 -0400 Received-SPF: none receiver=logan.com; client-ip=24.25.9.103; envelope-from=eanderson@carolina.rr.com Received: from EDWARD (cpe-069-132-183-211.carolina.rr.com [69.132.183.211]) by ms-smtp-04-eri0.southeast.rr.com (8.12.10/8.12.7) with SMTP id i7D4fASH007467 for ; Fri, 13 Aug 2004 00:41:11 -0400 (EDT) Message-ID: <002901c480ef$c4824fb0$2402a8c0@EDWARD> From: "Ed Anderson" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: DeltaT Coolant was : [FlyRotary] Re: coolant temps Date: Fri, 13 Aug 2004 00:41:15 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0026_01C480CE.3D3E7C20" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1409 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1409 X-Virus-Scanned: Symantec AntiVirus Scan Engine This is a multi-part message in MIME format. ------=_NextPart_000_0026_01C480CE.3D3E7C20 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Dave, I like the idea of Stone Furlongs/Hour glass. I thought to = suggest perhaps Stone Furlongs/Sun Dial, but realized some people are in = the dark about the rotary. Taking this further perhaps we should order = "T" shirts with the Stone Hedgerow (England) monoliths on the back and = "Rotary Stone Furlongs/Hour Glass...." on the front {:>). I'll bet if a = couple of us wore them at a flyin it would certainly get questions {:>) Getting too late, must be getting punchy. Ed Ed Anderson RV-6A N494BW Rotary Powered Matthews, NC ----- Original Message -----=20 From: DaveLeonard=20 To: Rotary motors in aircraft=20 Sent: Thursday, August 12, 2004 10:53 PM Subject: [FlyRotary] Re: DeltaT Coolant was : [FlyRotary] Re: coolant = temps Well, blighmy, blow me down. Who woulda thunk? Thanks Ed. Just for = fun, maybe we should all start start measuring our heat in = Stone*Furlongs. Excellent! Or perhaps the power of our 13B's as Stone = Furlongs/ hour glass. Just to sound like we have been doing this since = they built stone hinge. :) BTW, 10 deg delta seems about right judging by the typically slow rate = of rise of our water temperatures. If there were a 100 deg delta, I = would expect coolant to hit 200 shortly after take off. Instead, it = takes a good 20 min to settle in, even at climb power. Dave Leonard Right you are, Dave Below is one semi-official definition of BTU in English units. 1 = BTU is amount of heat to raise 1 lb of water 1 degree Fahrenheit. =20 So with Tracy's 30 gpm flow of water =3D 240 lbs/min. Since its = temperature is raised 10 degree F we have BTU =3D 240 * 10 * 1 =3D 2400 BTU/min I know I'm ancient and I should move into the new metric world, but = at least I didn't do it in Stones and Furlongs {:>) Ed The Columbia Encyclopedia, Sixth Edition. 2001.=20 =20 British thermal unit=20 =20 ------=_NextPart_000_0026_01C480CE.3D3E7C20 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Dave, I like the idea of Stone Furlongs/Hour = glass. =20 I thought to suggest perhaps Stone Furlongs/Sun Dial, but realized some = people=20 are in the dark about the rotary.  Taking this further perhaps we = should=20 order "T" shirts with the Stone Hedgerow (England) monoliths on the = back=20 and  "Rotary Stone Furlongs/Hour Glass...." on the front = {:>). =20 I'll bet if a couple of us wore them at a flyin it would certainly get = questions=20 {:>)
 
Getting too late, must be getting = punchy.
 
Ed
 
Ed Anderson
RV-6A N494BW Rotary Powered
Matthews, NC
----- Original Message -----
From:=20 DaveLeonard=20
Sent: Thursday, August 12, 2004 = 10:53=20 PM
Subject: [FlyRotary] Re: DeltaT = Coolant=20 was : [FlyRotary] Re: coolant temps

Well, = blighmy, blow me=20 down.  Who woulda thunk?  Thanks Ed.  Just for fun, = maybe we=20 should all start start measuring our heat in = Stone*Furlongs. =20 Excellent!  Or perhaps the power of our 13B's as Stone Furlongs/ = hour=20 glass.  Just to sound like we have been doing this since they = built stone=20 hinge.  :)
 
BTW, 10 deg = delta seems=20 about right judging by the typically slow rate of rise of our water=20 temperatures.  If there were a 100 deg delta, I would expect = coolant to=20 hit 200 shortly after take off.  Instead, it takes a good 20 min = to=20 settle in, even at climb power.
 
Dave=20 Leonard
Right you are, Dave
 
Below  is one semi-official = definition of=20 BTU in English units.  1 BTU is amount of heat to raise 1 lb of = water 1=20 degree Fahrenheit.  
 
So with Tracy's 30 gpm flow of water =3D 240 = lbs/min.  Since its temperature is raised 10 degree F we=20 have
 
BTU =3D 240 * 10 * 1 =3D 2400 = BTU/min
 
I know I'm ancient and  I should = move into=20 the new metric world, but at least I didn't do it in Stones and = Furlongs=20 {:>)
 
Ed
 
The Columbia Encyclopedia, Sixth=20 Edition.  2001.
 
British = thermal=20 unit
 
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