Return-Path: Sender: (Marvin Kaye) To: lml@lancaironline.net Date: Sun, 09 Nov 2003 19:20:21 -0500 Message-ID: X-Original-Return-Path: Received: from imo-r06.mx.aol.com ([152.163.225.102] verified) by logan.com (CommuniGate Pro SMTP 4.1.6) with ESMTP id 2716412 for lml@lancaironline.net; Sun, 09 Nov 2003 14:47:53 -0500 Received: from Sky2high@aol.com by imo-r06.mx.aol.com (mail_out_v36_r1.1.) id q.1dd.140122fe (4410) for ; Sun, 9 Nov 2003 14:47:18 -0500 (EST) From: Sky2high@aol.com X-Original-Message-ID: <1dd.140122fe.2cdff3c6@aol.com> X-Original-Date: Sun, 9 Nov 2003 14:47:18 EST Subject: Re: [LML] Re: composite safety X-Original-To: lml@lancaironline.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="-----------------------------1068407237" X-Mailer: Thailand for Windows sub 170 -------------------------------1068407237 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit In a message dated 11/9/2003 12:52:00 PM Central Standard Time, marv@lancaironline.net writes: But if you were to use a carbon lay-up, the stiffness and modulus of the carbon is different. If the carbon fails then you are already above the load of the E glass Dale, I don't know what that means. Our 320/360 main spars, while mainly made of prepreg, contain quite a bit of carbon in the spar cap. One must always be careful not to change the local stiffness of a structure so as to not trandfer the load to some other unplanned location. Scott Krueger Sky2high@aol.com II-P N92EX IO320 Aurora, IL (KARR) -------------------------------1068407237 Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable

In a message dated 11/9/2003 12:52:00 PM Central Standard Time, marv@la= ncaironline.net writes:

But if you were to use a carbon lay-up,=20= the stiffness and
modulus of the carbon is different. If the carbon fails= then you are already
above the load of the E glass

Dale,

I don't know what that means. Our 320/360 main spars, while mainl= y made of prepreg, contain quite a bit of carbon in the spar cap.

One must always be careful not to change the local stiffness of a struc= ture so as to not trandfer the load to some other unplanned location.

Scott Krueger
Sky2high@aol.com
II-P N92EX IO320 Aurora, IL (KARR)

-------------------------------1068407237--