X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Wed, 11 Feb 2009 13:02:41 -0500 Message-ID: X-Original-Return-Path: Received: from elasmtp-spurfowl.atl.sa.earthlink.net ([209.86.89.66] verified) by logan.com (CommuniGate Pro SMTP 5.2.12) with ESMTP id 3487607 for lml@lancaironline.net; Wed, 11 Feb 2009 08:21:08 -0500 Received-SPF: none receiver=logan.com; client-ip=209.86.89.66; envelope-from=colyncase@earthlink.net DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=dk20050327; d=earthlink.net; b=g2mffuzV3Tyr6AhPJtuyj/EGGHdswE749ZhiE7yJztt5AlsXQKfjVSAqs/KrfSDQ; h=Received:Message-ID:From:To:References:Subject:Date:MIME-Version:Content-Type:X-Priority:X-MSMail-Priority:X-Mailer:X-MimeOLE:X-ELNK-Trace:X-Originating-IP; Received: from [216.57.118.63] (helo=ccaselt3) by elasmtp-spurfowl.atl.sa.earthlink.net with esmtpa (Exim 4.67) (envelope-from ) id 1LXF0y-0005uu-6c for lml@lancaironline.net; Wed, 11 Feb 2009 08:20:33 -0500 X-Original-Message-ID: <00cc01c98c4b$84557a40$f78c020a@nvidia.com> From: "Colyn Case at earthlink" X-Original-To: "Lancair Mailing List" References: Subject: Re: [LML] Re: Accident Narrative X-Original-Date: Wed, 11 Feb 2009 08:20:28 -0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_00C7_01C98C21.98D33E00" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.3138 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3198 X-ELNK-Trace: 63d5d3452847f8b1d6dd28457998182d7e972de0d01da9407663da23c039a1f1aceb0a7c71c6624d350badd9bab72f9c350badd9bab72f9c350badd9bab72f9c X-Originating-IP: 216.57.118.63 This is a multi-part message in MIME format. ------=_NextPart_000_00C7_01C98C21.98D33E00 Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable Dennis said, This may or may not be relevant to open canopy controllability, but I = think the preceding description is backwards. The tail provides = negative lift in level flight, pushing the nose down, not up. If the = open canopy blanketed the tail, I think the nose would have pitched up, = not down. =20 Let's see, if your CG is in front of the CL which way does the tail have = to push to keep you level? ------=_NextPart_000_00C7_01C98C21.98D33E00 Content-Type: text/html; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable

Dennis said,

This may or may not be relevant to open = canopy=20 controllability, but I think the preceding description is = backwards. =20 The tail provides negative lift in level flight, pushing the nose = down, not=20 up. If the open canopy blanketed the tail, I think the nose would = have=20 pitched up, not down.

Let's see, if your CG is in front of the CL = which way does=20 the tail have to push to keep you = level?

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