Return-Path: Sender: (Marvin Kaye) To: lml@lancaironline.net Date: Fri, 20 Feb 2004 22:57:53 -0500 Message-ID: X-Original-Return-Path: Received: from [64.4.35.240] (HELO hotmail.com) by logan.com (CommuniGate Pro SMTP 4.1.8) with ESMTP id 3000626 for lml@lancaironline.net; Fri, 20 Feb 2004 16:47:08 -0500 Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Fri, 20 Feb 2004 13:47:08 -0800 Received: from 67.1.49.188 by bay12-dav66.bay12.hotmail.com with DAV; Fri, 20 Feb 2004 21:47:07 +0000 X-Originating-IP: [67.1.49.188] X-Originating-Email: [gary21sn@hotmail.com] X-Sender: gary21sn@hotmail.com From: "Gary Edwards" X-Original-To: "Lancair Mailing List" Subject: [LML] Re: Strenghtening the longerons? X-Original-Date: Fri, 20 Feb 2004 13:46:59 -0800 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0882_01C3F7B8.03342CE0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: MSN 8.5 X-MimeOLE: Produced By MSN MimeOLE V8.50.0017.1202 Seal-Send-Time: Fri, 20 Feb 2004 13:46:59 -0800 X-Original-Message-ID: X-OriginalArrivalTime: 20 Feb 2004 21:47:08.0109 (UTC) FILETIME=[166537D0:01C3F7FB] This is a multi-part message in MIME format. ------=_NextPart_000_0882_01C3F7B8.03342CE0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable >>The plans that I have are from a kit that Lancair sold me back in 1991, which include a blueprint "Q" from the 320 kit dated 8/89 that pretty clearly show bolts through the longeron. I have two sets of Forward Hinge Canopy plans: Blueprint "Q" Revision 2, dated 8-10-89. It indicates two mounting = bolts through the longeron for the strut bracket (no lower bolt). Blueprint "Q-FH" Revision 2, dated 8-10-89. It indicates 3 mounting = bolts for the strut bracket, all of which are below the longeron. The 2 = upper ones are in line with each other about 0.875 inch below the center = line of the longeron. The lower bolt through the fuselage side for the = bracket is about 2.0125 below the center line of the longeron. >>Additionally, I had to add a foam and uni-directional carbon = stiffener to the canopy between the forward hinge attach points because = the strong "squeeze" exerted by the gas struts forces the leading edge = of the canopy to severely rub against the vertical part of the forward = deck canopy seal joggle just before the canopy is closed. I use teflon = tape on the joggle to assist the slide between the parts. Even after the application of 42 layers of carbon fiber as per the = blueprints, the canopy sides suck in slightly with the struts attached. = Enough so the outside canopy side overhang over the longeron hits the = top of the longeron when closing the canopy. I installed small ramps = against the strut bracket to force the canopy out very so slightly to = get proper alignment at the last moment of closing. Without the gas struts attached to the canopy, the canopy is in = alignment as closes as built. Gary Edwards LNC2 N21SN ------=_NextPart_000_0882_01C3F7B8.03342CE0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

>>The plans that I have are from a kit that
Lancair = sold me=20 back in 1991, which include a blueprint "Q" from the 320
kit dated = 8/89 that=20 pretty clearly show bolts through the longeron.

I have two sets of Forward Hinge Canopy plans:

Blueprint "Q" Revision 2, dated 8-10-89. = It=20 indicates two mounting bolts through the longeron for the strut = bracket (no=20 lower bolt).

Blueprint "Q-FH" Revision 2, dated 8-10-89. = It=20 indicates 3 mounting bolts for the strut bracket, all of which are = below=20 the longeron. The 2 upper ones are in line with each other about = 0.875=20 inch below the center line of the longeron. The lower bolt through = the=20 fuselage side for the bracket is about 2.0125 below the center line of = the=20 longeron.

>>Additionally, I had to add a foam and=20 uni-directional carbon stiffener to the canopy between the forward hinge = attach=20 points because the strong "squeeze" exerted by the gas struts = forces the=20 leading edge of the canopy to severely rub against the vertical part of = the=20 forward deck canopy seal joggle just before the canopy is closed. = I use=20 teflon tape on the joggle to assist the slide between the = parts.

Even after the application of 42 layers of carbon fiber as per the=20 blueprints, the canopy sides suck in slightly with the struts=20 attached. Enough so the outside canopy side overhang over the = longeron hits the top of the longeron when closing the canopy. I = installed=20 small ramps against the strut bracket to force the canopy out very = so=20 slightly to get proper alignment at the last moment of closing.

Without the gas struts attached to the canopy, the canopy = is in=20 alignment as closes as built.

Gary Edwards

LNC2 N21SN

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