X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Thu, 27 Dec 2012 18:26:07 -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 6.0) with ESMTP id 5970933 for lml@lancaironline.net; Thu, 27 Dec 2012 14:08:14 -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=juET7ptdOXU2UeCxPxxIc2gz/wFM8qpbhPXy95ukBI0AqnBibiyV9y7U+NPW/AIP; h=Received:From:Mime-Version:Content-Type:Subject:Date:In-Reply-To:To:References:Message-Id:X-Mailer:X-ELNK-Trace:X-Originating-IP; Received: from [70.105.250.129] (helo=[192.168.1.24]) by elasmtp-spurfowl.atl.sa.earthlink.net with esmtpa (Exim 4.67) (envelope-from ) id 1ToInr-0003jQ-MB for lml@lancaironline.net; Thu, 27 Dec 2012 14:07:39 -0500 From: Colyn Case Mime-Version: 1.0 (Apple Message framework v1084) Content-Type: multipart/alternative; boundary=Apple-Mail-164-355247137 Subject: Re: [LML] Winglets for Hans X-Original-Date: Thu, 27 Dec 2012 09:46:09 -0500 In-Reply-To: X-Original-To: "Lancair Mailing List" References: X-Original-Message-Id: <617198D0-9FB2-40DE-8157-461DF8FA1975@earthlink.net> X-Mailer: Apple Mail (2.1084) X-ELNK-Trace: 63d5d3452847f8b1d6dd28457998182d7e972de0d01da94049d6a3417fa3339a0f540c0fde2914f1350badd9bab72f9c350badd9bab72f9c350badd9bab72f9c X-Originating-IP: 70.105.250.129 --Apple-Mail-164-355247137 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=us-ascii Hans, if you want the theory, go to Fred's articles on drag reduction = here: http://www.lancaironline.net/lmltips.html So far I have not seen any measurements that show improved efficiency = at any altitude. Colyn On Dec 26, 2012, at 12:25 PM, = wrote: Posted for "Hans Petr" : Hi all ,=20 I am thinking of adding winglets on Lancair 4 , I will not be going = above 12k=20 feet due to oxygen , will I gain any cruising speed at 12000ft or bellow = ? Looking forward to your suggestions, Regards Hans -- For archives and unsub = http://mail.lancaironline.net:81/lists/lml/List.html --Apple-Mail-164-355247137 Content-Transfer-Encoding: 7bit Content-Type: text/html; charset=us-ascii Hans, if you want the theory, go to Fred's articles on drag reduction here: http://www.lancaironline.net/lmltips.html

So far I have not seen any measurements that show improved efficiency at any altitude.

Colyn

On Dec 26, 2012, at 12:25 PM, <marv@lancair.net> <marv@lancair.net> wrote:

Posted for "Hans Petr" <hanspetr@yahoo.com>:

Hi all ,
I am thinking of adding winglets on Lancair 4 , I will not be going above 12k
feet due to oxygen , will I gain any cruising speed at 12000ft or bellow ?
Looking forward to your suggestions,

Regards Hans

--

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