Return-Path: Sender: (Marvin Kaye) To: lml Date: Sat, 24 Aug 2002 22:42:58 -0400 Message-ID: X-Original-Return-Path: Received: from mail.indian-creek.net ([209.176.40.9] verified) by logan.com (CommuniGate Pro SMTP 4.0b7) with ESMTP id 1711123 for lml@lancaironline.net; Sat, 24 Aug 2002 17:24:52 -0400 Received: from VAIO ([209.176.40.25]) by mail.indian-creek.net with SMTP (IOA-IPAD 3.0) id 0767500; Sat, 24 Aug 2002 16:24:44 -0500 X-Original-Message-ID: <004f01c24bb4$a78c4720$1928b0d1@VAIO> From: "Jim Cameron" X-Original-To: "Lancair Mailing List" Subject: Paint color and skin temp X-Original-Date: Sat, 24 Aug 2002 16:24:37 -0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_004C_01C24B8A.BD5576A0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2600.0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 This is a multi-part message in MIME format. ------=_NextPart_000_004C_01C24B8A.BD5576A0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable DuPont have a tech bulletin that shows skin temps as a function of color = (no mention of gloss as a factor). Their data show that black is = something like 80 to 90 degrees hotter when sitting in the summer sun = than white. Pale greens, pale yellows, and very pale blues were not = much different, but darker colors like Ferrari red and British Racing = Green are getting up there close to black. The more prudent course, it would seem to me, would be to confine dark = colors to the underside or trim stripes, sticking with white or a light = pastel for the upper surfaces. We sat on the ramp at North Las Vegas = the other day with an air temp of +44C -- what do you suppose a black = plane would have topped out at? Jim Cameron, N143ES ------=_NextPart_000_004C_01C24B8A.BD5576A0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
DuPont have a tech bulletin that shows = skin temps=20 as a function of color (no mention of gloss as a factor).  Their = data show=20 that black is something like 80 to 90 degrees hotter when sitting in the = summer=20 sun than white.  Pale greens, pale yellows, and very pale blues = were not=20 much different, but darker colors like Ferrari red and British Racing = Green are=20 getting up there close to black.
 
The more prudent course, it would seem = to me, would=20 be to confine dark colors to the underside or trim stripes, sticking = with white=20 or a light pastel for the upper surfaces.  We sat on the ramp at = North Las=20 Vegas the other day with an air temp of +44C -- what do you suppose = a black=20 plane would have topped out at?
 
Jim Cameron, = N143ES
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