X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml Date: Tue, 01 Dec 2009 20:51:23 -0500 Message-ID: X-Original-Return-Path: Received: from vms173015pub.verizon.net ([206.46.173.15] verified) by logan.com (CommuniGate Pro SMTP 5.3c3) with ESMTP id 3997446 for lml@lancaironline.net; Tue, 01 Dec 2009 09:48:43 -0500 Received-SPF: pass receiver=logan.com; client-ip=206.46.173.15; envelope-from=skipslater@verizon.net Received: from SkipPC ([173.58.203.163]) by vms173015.mailsrvcs.net (Sun Java(tm) System Messaging Server 6.3-7.04 (built Sep 26 2008; 32bit)) with ESMTPA id <0KTZ00K3XAG7CKYF@vms173015.mailsrvcs.net> for lml@lancaironline.net; Tue, 01 Dec 2009 08:48:08 -0600 (CST) X-Original-Message-id: <31E76C3A9B9C42BC944EE82B3838D372@SkipPC> From: "Skip Slater" X-Original-To: "Lancair Mailing List" References: In-reply-to: Subject: Re: [LML] Vne is NOT a meaningless number X-Original-Date: Tue, 01 Dec 2009 06:47:11 -0800 MIME-version: 1.0 Content-type: multipart/alternative; boundary="----=_NextPart_000_004C_01CA7252.1BCC77B0" X-Priority: 3 X-MSMail-priority: Normal Importance: Normal X-Mailer: Microsoft Windows Live Mail 14.0.8089.726 X-MIMEOLE: Produced By Microsoft MimeOLE V14.0.8089.726 This is a multi-part message in MIME format. ------=_NextPart_000_004C_01CA7252.1BCC77B0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Randy, Count me in Robert's corner on this - exceed VNE at your own peril, but = please don't do it with unwitting passengers onboard. I've seen too many films in the military of what happens to airplanes = when flutter begins at excessive airspeed. It's not something you feel = coming on like stall buffet and recover from. It can tear an airframe = apart in the blink of an eye. Sure, differently built planes will = experience flutter onset at differing airspeeds, but why would any sane = person intentionally exceed a limitation set by the plane's (or kit's) = manufacturer? In the absence of a detailed set of data, including = testing an airframe to failure in a wind tunnel, that limitation is all = you have. Sure, it likely has a buffer built into it, but intentional = ignorance of the redline on the ASI in any airplane that wasn't = specifically designed and modified to do it, experimental or not, is a = bad idea. Skip Slater N540ES ------=_NextPart_000_004C_01CA7252.1BCC77B0 Content-Type: text/html; charset="utf-8" Content-Transfer-Encoding: quoted-printable
Randy,
 
Count me in Robert's corner on this - = exceed VNE at=20 your own peril, but please don't do it with unwitting passengers=20 onboard.
 
I've seen too many films in the = military of what=20 happens to airplanes when flutter begins at excessive = airspeed. It's=20 not something you feel coming on like stall buffet and recover = from.  It can tear an airframe apart in the blink of an eye.  = Sure,=20 differently built planes will experience flutter onset at differing = airspeeds, but why would any sane person intentionally exceed a = limitation set=20 by the plane's (or kit's) manufacturer?  In the absence of a = detailed set=20 of data, including testing an airframe to failure in a wind tunnel, that = limitation is all you have.  Sure, it likely has a buffer built = into it,=20 but intentional ignorance of the redline on the ASI in any = airplane that wasn't specifically designed and modified to do it,=20 experimental or not, is a bad idea.
 
Skip Slater
N540ES
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