X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Sun, 25 Sep 2011 23:37:08 -0400 Message-ID: X-Original-Return-Path: Received: from fmailhost04.isp.att.net ([204.127.217.104] verified) by logan.com (CommuniGate Pro SMTP 5.4.1) with ESMTP id 5135459 for lml@lancaironline.net; Sun, 25 Sep 2011 01:25:08 -0400 Received-SPF: none receiver=logan.com; client-ip=204.127.217.104; envelope-from=bbradburry@bellsouth.net Received: from desktop (adsl-74-235-253-170.mco.bellsouth.net[74.235.253.170]) by isp.att.net (frfwmhc04) with SMTP id <20110925052430H0400ir82pe>; Sun, 25 Sep 2011 05:24:31 +0000 X-Originating-IP: [74.235.253.170] From: "Bill Bradburry" X-Original-To: "'Lancair Mailing List'" References: In-Reply-To: Subject: RE: [LML] Legacy canopy latching X-Original-Date: Sun, 25 Sep 2011 01:24:32 -0400 X-Original-Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit X-Mailer: Microsoft Office Outlook 11 Thread-Index: Acx7H0Dn7pdAZ6tlSBW+z6lu9WLPCAAI6JBA X-MimeOLE: Produced By Microsoft MimeOLE V6.0.6001.18049 Did the canopy come open in flight? It is possible for the canopy to rise high enough at lower speeds, (landing, take off) to blank off the elevator and cause a loss of pitch control. Bill B -----Original Message----- From: Lancair Mailing List [mailto:lml@lancaironline.net] On Behalf Of Charley Brown Sent: Saturday, September 24, 2011 9:05 PM To: lml@lancaironline.net Subject: [LML] Legacy canopy latching I recently completed Legacy #299, N550KC. At 200 kias, one canopy latch "failed" -- specifically, the hooks remained over center in position, but the canopy went up and around the hooks. This is undoubtedly due to the gap between the canopy (striker plate) and the hooks being too large in the first place -- there was probably a 1/4-inch gap when I started, and I shimmed the striker plate out towards the hooks (laminated a duplicate 4619 striker plate about 1/10-inch thick onto the original plate). But clearly I didn't close the gap enough.