X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Tue, 25 Feb 2014 11:35:34 -0500 Message-ID: X-Original-Return-Path: Received: from smtp2v2.av-mx.com ([137.118.16.30] verified) by logan.com (CommuniGate Pro SMTP 6.0.8) with ESMTP id 6748722 for lml@lancaironline.net; Tue, 25 Feb 2014 11:15:44 -0500 Received-SPF: pass receiver=logan.com; client-ip=137.118.16.30; envelope-from=pinetownd@volcano.net Received: from localhost (localhost [127.0.0.1]) by smtp2v2.av-mx.com (Postfix) with ESMTP id 3230FC8011F for ; Tue, 25 Feb 2014 11:15:10 -0500 (EST) X-Virus-Scanned: amavisd-new at av-mx.com Received: from smtp2v2.av-mx.com ([127.0.0.1]) by localhost (smtp2v2.av-mx.com [127.0.0.1]) (amavisd-new, port 10124) with ESMTP id AXLT3kFAmY38 for ; Tue, 25 Feb 2014 11:15:07 -0500 (EST) Received: from DennisPC (107-182-33-246.volcanocom.com [107.182.33.246]) (Authenticated sender: pinetownd@volcano.net) by smtp2v2.av-mx.com (Postfix) with ESMTPA for ; Tue, 25 Feb 2014 11:15:07 -0500 (EST) X-Original-Message-ID: <5961F6A5E0D84AB187C9027CAF031FEF@DennisPC> From: "Dennis Johnson" X-Original-To: "Lancair Mailing List" Subject: Legacy Accident History Update X-Original-Date: Tue, 25 Feb 2014 08:15:36 -0800 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_452B_01CF3201.C352BFD0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Windows Mail 6.0.6002.18197 X-MimeOLE: Produced By Microsoft MimeOLE V6.0.6002.18463 This is a multi-part message in MIME format. ------=_NextPart_000_452B_01CF3201.C352BFD0 Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable Regarding concerns about taking off with an open canopy in the Legacy, = Mark Summers, a new Legacy pilot, has asked me to post a message here = advising that there is a discussion about open canopy problems in the = Vans RV-12 at this link: https://groups.yahoo.com/neo/groups/Vans_RV-12/conversations/messages/7 Personally, I remain a little skeptical about this perceived problem. = On one hand, I can't imagine aerodynamic forces that would cause the = canopy to open more than a few inches and have second hand knowledge of = a Legacy open canopy on takeoff that exhibited no problems. On the = other hand, there have been fatal accidents following an open canopy on = takeoff, which cannot be ignored. =20 It would be nice if someone could offer a plausible explanation of = forces that could open a Legacy canopy more than a few inches. Even = better if someone did high speed taxi tests with the canopy unlatched, = with a video camera on a chase car recording the results. But I'm not = volunteering! Best, Dennis Legacy, 680 hours=20 ------=_NextPart_000_452B_01CF3201.C352BFD0 Content-Type: text/html; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable

Regarding concerns about taking off with an open canopy in the = Legacy, Mark=20 Summers, a new Legacy pilot, has asked me to post a message here = advising that=20 there is a discussion about open canopy problems in the Vans RV-12 at = this=20 link:

https://groups.yahoo.com/neo/groups/Vans_RV-12/conversations/mess= ages/7

Personally, I remain a little skeptical about this perceived = problem. =20 On one hand, I can't imagine aerodynamic forces that would cause the = canopy to=20 open more than a few inches and have second hand knowledge of a Legacy = open=20 canopy on takeoff that exhibited no problems. On the other hand, = there=20 have been fatal accidents following an open canopy on takeoff, which = cannot be=20 ignored.

It would be nice if someone could offer a plausible explanation of = forces=20 that could open a Legacy canopy more than a few inches. Even = better=20 if someone did high speed taxi tests with the canopy unlatched, with a = video=20 camera on a chase car recording the results. But I'm not=20 volunteering!

Best,

Dennis

Legacy, 680 hours

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