Return-Path: Sender: "Marvin Kaye" To: lml@lancaironline.net Date: Mon, 24 Jan 2005 07:36:05 -0500 Message-ID: X-Original-Return-Path: Received: from mail.pshift.com ([63.166.217.30] verified) by logan.com (CommuniGate Pro SMTP 4.2.8) with ESMTP id 618968 for lml@lancaironline.net; Mon, 24 Jan 2005 00:48:33 -0500 Received-SPF: neutral receiver=logan.com; client-ip=63.166.217.30; envelope-from=colyncase@earthlink.net Received: from ccaselt (unverified [206.229.199.250]) by mail.pshift.com (Vircom SMTPRS 4.0.340.3) with SMTP id for ; Mon, 24 Jan 2005 00:41:37 -0500 X-Original-Message-ID: <037601c501d7$7f788b50$bc7ba8c0@nvidia.com> From: "colyncase on earthlink" X-Original-To: Subject: re: Alert. NACA 64212 X-Original-Date: Sun, 23 Jan 2005 21:42:30 -0800 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0373_01C50194.707328B0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1437 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2800.1441 This is a multi-part message in MIME format. ------=_NextPart_000_0373_01C50194.707328B0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable So the question that has been bugging me for about a year is: If we were to give up 10-15 knots could the IV be made spin resistant and or spin recoverable? It seems like one or more of the following might be true: - h-stab/elevator not effective in stall conditions - rudder ditto - effective washout is either nil or negative Has anyone looked at the aerodynamic tradeoffs? Colyn ------=_NextPart_000_0373_01C50194.707328B0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

So the question that has been bugging = me for about=20 a year is:

If we were to give up 10-15 knots could = the IV be=20 made spin

resistant and or spin = recoverable? It seems=20 like one or more

of the following might be = true:

= - h-stab/elevator not=20 effective in stall conditions

- rudder = ditto

- effective washout = is either=20 nil or negative

Has anyone looked at the aerodynamic=20 tradeoffs?

Colyn

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