X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Wed, 02 Jan 2013 11:17:23 -0500 Message-ID: X-Original-Return-Path: Received: from extmail-01.people.net.au ([202.154.123.98] verified) by logan.com (CommuniGate Pro SMTP 6.0.1) with SMTP id 5991473 for lml@lancaironline.net; Wed, 02 Jan 2013 10:39:28 -0500 Received-SPF: pass receiver=logan.com; client-ip=202.154.123.98; envelope-from=stevens5@swiftdsl.com.au Received: (qmail 9938 invoked from network); 2 Jan 2013 15:38:52 -0000 Received: from unknown (HELO StevensPC) (218.215.219.83) by extmail-01.people.net.au with SMTP; 2 Jan 2013 15:38:52 -0000 From: "Stevens Family" X-Original-To: "Lancair Mailing List" Subject: L360 canopy construction X-Original-Date: Wed, 2 Jan 2013 23:38:51 +0800 X-Original-Message-ID: <002101cde8ff$440d76d0$cc286470$@swiftdsl.com.au> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0022_01CDE942.523300C0" X-Mailer: Microsoft Outlook 14.0 Thread-Index: Ac3o+Uw7a30n4a3eSHW3IGalvhmbIw== Content-Language: en-au This is a multipart message in MIME format. ------=_NextPart_000_0022_01CDE942.523300C0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Another question for those who have built the forward hinged canopy. =20 In the instruction sheets which accompanied the forward hinge kit, it specifies that a phenolic pad 1-1/8 inches square should be bonded to = each side of the canopy frame, 12-5/16 in rearward of the gas strut forward aluminium supports. However prior to doing this, the instructions = require 8 layers of carbon uni cloth be bonded to the inside of the frame, = commencing just to the rear of the mounting positions of these phenolic pads. In = fact, from what I can make of the drawings, the edge of this carbon layup = passes neatly through the middle of the phenolic pad mounting position. =20 The logical options seem to be=85. 1. Enlarge the carbon layup area so that the entire phenolic pad = is over the carbon layup. The instructions indicate that the phenolic pads, which are bonded into place with structural adhesive should have = bevelled edges =93so the attaching lay-ups can smoothly cover them=94 (CH 17 = Sup-17). There is no further mention of the attaching layups. Did any of you = folks apply the phenolic over the carbon and then apply 2 or 3 bid of glass, = or maybe imbed the phenolic between the first 4 layers of carbon and the = last 4 layers? Or maybe put it under all 8 layers? I am concerned that by = bonding it over 8 layers of carbon, then adding =BC in of phenolic then applying = a couple of layers of glass, the whole mounting will be too thick.=20 =20 2. Reduce the area of the carbon so the phenolic pad mounting is = clear of the carbon altogether and therefore is bonded directly to the inside = of the canopy frame skin. =20 3. The 8 layers of carbon are not meant to be applied all the way = to the edge of the canopy. The diagram however seems not to support this = idea. =20 Sorry this question is so tedious to describe, but I would like to have = a clear picture in my head before I start mixing any resin! =20 Once again, I do appreciate the help I always get when I put a query on = the list. =20 Regards, =20 Rob Stevens Perth, Western Australia. =20 =20 =20 =20 =20 =20 =20 =20 ------=_NextPart_000_0022_01CDE942.523300C0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

Another = question for those who have built the forward hinged = canopy.

 

In the instruction sheets which accompanied the = forward hinge kit, it specifies that a phenolic pad 1-1/8 inches square = should be bonded to each side of the canopy frame, 12-5/16 in = =A0rearward of the gas strut forward aluminium supports. However prior = to doing this, the instructions require 8 layers of carbon uni cloth be = bonded to the inside of the frame, commencing just to the rear of the = mounting positions of these phenolic pads. In fact, from what I can make = of the drawings, the edge of this carbon layup passes neatly through the = middle of the phenolic pad mounting position.

 

The logical = options seem to be….

1.       = Enlarge the carbon layup area so that the entire = phenolic pad is over the carbon layup. The instructions indicate that = the phenolic pads, which are bonded into place with structural adhesive = should have bevelled edges “so the attaching lay-ups can smoothly = cover them” (CH 17 Sup-17). There is no further mention of the = attaching layups. Did any of you folks apply the phenolic over the = carbon and then apply 2 or 3 bid of glass, or maybe imbed the phenolic = between the first 4 layers of carbon and the last 4 layers? Or maybe put = it under all 8 layers? I am concerned that by bonding it over 8 layers = of carbon, then adding =BC in of phenolic then applying a couple of = layers of glass, the whole mounting will be too thick.

 

2.       = Reduce the area of the carbon so the phenolic = pad mounting is clear of the carbon altogether and therefore is bonded = directly to the inside of the canopy frame skin.

 

3.       The = 8 layers of carbon are not meant to be applied all the way to the edge = of the canopy. The diagram however seems not to support this = idea.

 

Sorry this question is so tedious to describe, but I = would like to have a clear picture in my head before I start mixing any = resin!

 

Once again, I do appreciate the help I always get when = I put a query on the list.

 

Regards,

 

Rob = Stevens

Perth,

Western Australia.

 

 

 

 

 

 

 

 

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