X-Virus-Scanned: clean according to Sophos on Logan.com X-SpamCatcher-Score: 2 [X] Return-Path: Sender: To: lml@lancaironline.net Date: Sun, 29 Apr 2007 19:57:21 -0400 Message-ID: X-Original-Return-Path: Received: from mx2.pshift.com ([216.57.116.7] verified) by logan.com (CommuniGate Pro SMTP 5.1.8) with ESMTP id 2016679 for lml@lancaironline.net; Sun, 29 Apr 2007 19:15:42 -0400 Received-SPF: none receiver=logan.com; client-ip=216.57.116.7; envelope-from=colyncase@earthlink.net Received: from ccaselt2 (unverified [216.57.118.92]) by mx2.pshift.com (Vircom SMTPRS 4.4.571.23) with SMTP id for ; Sun, 29 Apr 2007 19:14:22 -0400 Received-SPF: none (mx2.pshift.com: domain of colyncase@earthlink.net does not designate any permitted senders) X-Modus-BlackList: 216.57.118.92=OK;colyncase@earthlink.net=OK X-Modus-RBL: 216.57.118.92=Excluded X-Modus-Trusted: 216.57.118.92=NO X-Modus-Audit: FALSE;0;0;0 X-Original-Message-ID: <091501c78ab4$2f54a010$0502a8c0@nvidia.com> From: "Colyn Case on earthlink" X-Original-To: "Lancair Mailing List" References: Subject: Re: [LML] vertical stabilizer extension X-Original-Date: Sun, 29 Apr 2007 16:14:49 -0700 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0912_01C78A79.82CAC070" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.3028 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3028 This is a multi-part message in MIME format. ------=_NextPart_000_0912_01C78A79.82CAC070 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Berni, caveat: I'm not an aerodynamics guy. but I did ask one about this = mod and the response was that you would not feel much difference at low = yaw angles but that it might remain effective at higher yaw angles than = the stock vstab. I can also say that Mike Custard tends not to put them on anymore, = now that he has the ventral fin. one open item, however, is the possibility of extending the rudder. = In theory, the bottom of the rudder is in cleaner air at high angles of = attack. If you pursue that route you might want to do something = different with the ventral fin. Colyn ------=_NextPart_000_0912_01C78A79.82CAC070 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Berni,
    caveat: I'm not an = aerodynamics=20 guy.   but I did ask one about this mod and the response was = that you=20 would not feel much difference at low yaw angles but that it might = remain=20 effective at higher yaw angles than the stock = vstab.
    I can also say that = Mike Custard=20 tends not to put them on anymore, now that he has the ventral=20 fin.
 
    one open item, = however, is the=20 possibility of extending the rudder.   In theory, the bottom = of the=20 rudder is in cleaner air at high angles of attack.   If you = pursue=20 that route you might want to do something different with the ventral=20 fin.
 
Colyn
 
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