Return-Path: Sender: (Marvin Kaye) To: lml Date: Sat, 24 Aug 2002 11:27:07 -0400 Message-ID: X-Original-Return-Path: Received: from imo-r02.mx.aol.com ([152.163.225.98] verified) by logan.com (CommuniGate Pro SMTP 4.0b7) with ESMTP id 1710914 for lml@lancaironline.net; Sat, 24 Aug 2002 08:59:04 -0400 Received: from Sky2high@aol.com by imo-r02.mx.aol.com (mail_out_v33.5.) id q.1be.be750d1 (4238) for ; Sat, 24 Aug 2002 08:58:58 -0400 (EDT) From: Sky2high@aol.com X-Original-Message-ID: <1be.be750d1.2a98dd11@aol.com> X-Original-Date: Sat, 24 Aug 2002 08:58:57 EDT Subject: Re: [LML] AW: [LML] Re: Lancair Paint Colors X-Original-To: lml@lancaironline.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="part1_1be.be750d1.2a98dd11_boundary" X-Mailer: AOL 8.0 for Windows US sub 64 --part1_1be.be750d1.2a98dd11_boundary Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit In a message dated 8/24/2002 5:16:59 AM Central Daylight Time, winter@winsysteme.de writes: > These test results are > showing that the ferrari red color is no problem at all. I'm no engineer, so I performed my own tests. Using paint chips (White, Black, various metallics) with temperature strips affixed to the back of each and mounted on a plastic sheet so the temperatures could be read, I noted that black was 40-50 degrees Farenheit higher than white under a summer noon-time sun at 42 degrees North Latitude. I further noted that even pale metallics were 25 to 35 degrees hotter than the white. Our molded parts are kiln cured and, if I remember correctly, that makes them resist deformity until about 240 degrees is reached. Wet layups start to soften at 140 to 180 degrees. 320/360s have a lot of wet layup joints although many are structurally bonded with flox before the layup. All that being said, vividly colored Lancairs have held up in the jungles of South Florida and the deserts of Arizona. Colored wet layup plans built aircraft have not fared as well - some sitting with permanently drooped wings in the Mojave. I ultimately chose white upper surfaces because after parking and waiting for take off, I wanted to remain as cool as possible, without air conditioning, in the noon day sun. I am neither an Englishman nor a mad dog. Scott Krueger N92EX --part1_1be.be750d1.2a98dd11_boundary Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: 7bit In a message dated 8/24/2002 5:16:59 AM Central Daylight Time, winter@winsysteme.de writes:

These test results are
showing that the ferrari red color is no problem at all.


I'm no engineer, so I performed my own tests.

Using paint chips (White, Black, various metallics) with temperature strips affixed to the back of each and mounted on a plastic sheet so the temperatures could be read, I noted that black was 40-50 degrees Farenheit higher than white under a summer noon-time sun at 42 degrees North Latitude.  I further noted that even pale metallics were 25 to 35 degrees hotter than the white.  Our molded parts are kiln cured and, if I remember correctly, that makes them resist deformity until about 240 degrees is reached.  Wet layups start to soften at 140 to 180 degrees.  320/360s have a lot of wet layup joints although many are structurally bonded with flox before the layup.

All that being said, vividly colored Lancairs have held up in the jungles of South Florida and the deserts of Arizona.  Colored wet layup plans built aircraft have not fared as well - some sitting with permanently drooped wings in the Mojave.

I ultimately chose white upper surfaces because after parking and waiting for take off, I wanted to remain as cool as possible, without air conditioning, in the noon day sun.  I am neither an Englishman nor a mad dog.

Scott Krueger
N92EX --part1_1be.be750d1.2a98dd11_boundary--