Return-Path: Sender: (Marvin Kaye) To: lml Date: Tue, 22 Jul 2003 09:55:35 -0400 Message-ID: X-Original-Return-Path: Received: from imo-m06.mx.aol.com ([64.12.136.161] verified) by logan.com (CommuniGate Pro SMTP 4.1) with ESMTP id 2500706 for lml@lancaironline.net; Tue, 22 Jul 2003 09:54:45 -0400 Received: from Sky2high@aol.com by imo-m06.mx.aol.com (mail_out_v36_r1.1.) id q.1d8.e54caac (25305) for ; Tue, 22 Jul 2003 09:54:34 -0400 (EDT) From: Sky2high@aol.com X-Original-Message-ID: <1d8.e54caac.2c4e9c1a@aol.com> X-Original-Date: Tue, 22 Jul 2003 09:54:34 EDT Subject: Re: [LML] Electrical properties of carbon airplanes X-Original-To: lml@lancaironline.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="-----------------------------1058882074" X-Mailer: 9.0 for Windows sub 400 -------------------------------1058882074 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit In a message dated 7/22/2003 8:17:01 AM Central Daylight Time, glcasey@adelphia.net writes: > Can anybody knowledgable person think of any good reason to not include > this silver powder/flake in the hysol?>> I don't understand the question but, being weird, let me try this. The Lancair Legacy (at least the one I dealt with for a while) skins were "bonded" at the skin joggles and basic skin to skin joints with "black" epoxy. I believe that chopped carbon fabric was used in the epoxy (thus, making it black) - check with Lancair. In any event, there was electrical conductivity between these parts. Hysol is generally used to bond the skin to flanged ribs and other structural elements where these elements are made of non-conductive glass - no need to use a conductive adhesive. For conductivity to outer wing panels, control surfaces, canopy and cowling, straps can be used. If one is installing static wicks, there is conductive (though pricey) silvered bonding agents for the wick to fuselage terminus. Remember that Legacy wingtips are made of glass and wicks located there require a bonding strap. Scott Krueger 2003 Air Venture Cup Racer #94 Sky2high@aol.com LNC2 N92EX IO320 Aurora, IL (KARR) -------------------------------1058882074 Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable

In a message dated 7/22/2003 8:17:01 AM Central Daylight Time,=20 glcasey@adelphia.net writes:

> Can anyb= ody=20 knowledgable person think of any good reason to not include
> this sil= ver=20 powder/flake in the hysol?>>

I don't understand the question but, being weird, let me try this. = ;=20 The Lancair Legacy (at least the one I dealt with for a while) skins were=20 "bonded" at the skin joggles and basic skin to skin joints with "black"=20 epoxy. I believe that chopped carbon fabric was used in the epoxy = ;(thus,=20 making it black) - check with Lancair. In any event, there was electri= cal=20 conductivity between these parts. Hysol is generally used to bond the=20 skin to flanged ribs and other structural elements where these elements are=20= made=20 of non-conductive glass - no need to use a conductive adhesive.

For conductivity to outer wing panels, control surfaces, canopy and=20 cowling, straps can be used. If one is installing static wicks, there=20= is=20 conductive (though pricey) silvered bonding agents for the wick to fuselage=20 terminus. Remember that Legacy wingtips are made of glass and wicks lo= cated=20 there require a bonding strap.

Scott=20 Krueger
2003 Air Venture Cup Racer #94
Sky2high@aol.com
LNC2 N92EX=20= IO320=20 Aurora, IL (KARR)

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