X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from cdptpa-omtalb.mail.rr.com ([75.180.132.121] verified) by logan.com (CommuniGate Pro SMTP 5.1.12) with ESMTP id 2347754 for flyrotary@lancaironline.net; Sun, 23 Sep 2007 19:20:21 -0400 Received-SPF: pass receiver=logan.com; client-ip=75.180.132.121; envelope-from=eanderson@carolina.rr.com Received: from edward2 ([24.74.103.61]) by cdptpa-omta03.mail.rr.com with SMTP id <20070923231945.ZKXY3971.cdptpa-omta03.mail.rr.com@edward2> for ; Sun, 23 Sep 2007 23:19:45 +0000 Message-ID: <000401c7fe38$5ce1e400$2402a8c0@edward2> From: "Ed Anderson" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: RV-7A Cooling Date: Sun, 23 Sep 2007 19:20:42 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0001_01C7FE16.D58FDFA0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.3138 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3138 This is a multi-part message in MIME format. ------=_NextPart_000_0001_01C7FE16.D58FDFA0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Ok, I can see if you are at 5000 MSL on the ground in Arizona that it = might be 90F 1500 ft higher, I'm just surprised to see those type of = Temps this side of Colorado at 6500 MSL. Ed ----- Original Message -----=20 From: Dale Rogers=20 To: Rotary motors in aircraft=20 Sent: Sunday, September 23, 2007 5:29 PM Subject: [FlyRotary] Re: RV-7A Cooling Ed Anderson wrote:=20 However, when you say inlet temps - do you mean inlet to your ducts = or is that the inlet to your throttle body. The reason I ask is 90F = seems very high for OAT at 6500 MSL and since you are using that figure = to determine your Delta T across your cores, you need to insure that it = is correct. Ed, I'm not that familiar with Dennis's part of the world, but - as=20 hot as the PHX area gets - there are places in Texas and Florida=20 that get hotter on a given day and weather. FFZ (Mesa, AZ) is roughly 1400' elevation. If the ambient=20 temperature at the field is 110 - which it often is,.this time of=20 the year - the temperature at 6500' is ~95F. (And I'm glad to have=20 that *cool* up there.) Dale R. COZY MkIV #497 Ch.12 -- Homepage: http://www.flyrotary.com/ Archive and UnSub: = http://mail.lancaironline.net:81/lists/flyrotary/List.html ------=_NextPart_000_0001_01C7FE16.D58FDFA0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Ok, I can see if you are at 5000 = MSL on the=20 ground in Arizona that it might be 90F 1500 ft higher, I'm just = surprised to see=20 those type of Temps this side of Colorado at 6500 MSL.
 
Ed
----- Original Message -----
From:=20 Dale = Rogers
Sent: Sunday, September 23, = 2007 5:29=20 PM
Subject: [FlyRotary] Re: RV-7A=20 Cooling

Ed Anderson wrote:=20
However, when you say inlet temps - do you = mean inlet=20 to your ducts or is that the inlet to your throttle body.  = The =20 reason I ask is 90F seems very high for OAT at 6500 MSL and since = you are=20 using that figure to determine your Delta T across your cores, you = need to=20 insure that it is=20 correct.

Ed,

   I'm = not that=20 familiar with Dennis's part of the world, but - as
hot as the PHX = area=20 gets - there are places in Texas and Florida
that get hotter on a = given=20 day and weather.

  FFZ (Mesa, AZ) is roughly 1400'=20 elevation.  If the ambient
temperature at the field is 110 - = which it=20 often is,.this time of
the year - the temperature at 6500' is = ~95F. =20 (And I'm glad to have
that *cool* up there.)

Dale = R.
COZY=20 MkIV #497 Ch.12


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