X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from ispmxmta05-srv.alltel.net ([166.102.165.166] verified) by logan.com (CommuniGate Pro SMTP 5.0.4) with ESMTP id 890659 for flyrotary@lancaironline.net; Tue, 20 Dec 2005 20:36:54 -0500 Received-SPF: pass receiver=logan.com; client-ip=166.102.165.166; envelope-from=montyr2157@alltel.net Received: from Thorstwin ([4.89.253.217]) by ispmxmta05-srv.alltel.net with SMTP id <20051221013608.MTMV8731.ispmxmta05-srv.alltel.net@Thorstwin> for ; Tue, 20 Dec 2005 19:36:08 -0600 Message-ID: <000501c605ce$ebbdbc80$d9fd5904@Thorstwin> From: "Monty Roberts" To: Subject: Tracy, Ed, delta T Date: Tue, 20 Dec 2005 19:36:09 -0600 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0002_01C6059C.A06E2D50" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.2180 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 This is a multi-part message in MIME format. ------=_NextPart_000_0002_01C6059C.A06E2D50 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Tracy and Ed, I was looking at an earlier post where Tracy listed air delta T across = his evap cores in cruise as 70-80F. How much increase in DeltaT do you = see with altitude? I would assume it would increase since the air is = both colder, and thinner. A 10 deg deltaT change makes a substantial = difference when sizing an intake. Monty ------=_NextPart_000_0002_01C6059C.A06E2D50 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

Tracy and Ed,

I was looking at an earlier post where = Tracy listed=20 air delta T across his evap cores in cruise as 70-80F. How much increase = in=20 DeltaT do you see with altitude? I would assume it would increase since = the air=20 is both colder, and thinner. A 10 deg deltaT change makes a substantial=20 difference when sizing an intake.

Monty

------=_NextPart_000_0002_01C6059C.A06E2D50--