X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Fri, 01 Apr 2011 10:34:39 -0400 Message-ID: X-Original-Return-Path: Received: from imr-da03.mx.aol.com ([205.188.105.145] verified) by logan.com (CommuniGate Pro SMTP 5.4c2) with ESMTP id 4929209 for lml@lancaironline.net; Fri, 01 Apr 2011 08:09:53 -0400 Received-SPF: pass receiver=logan.com; client-ip=205.188.105.145; envelope-from=MikeEasley@aol.com Received: from mtaomg-ma04.r1000.mx.aol.com (mtaomg-ma04.r1000.mx.aol.com [172.29.41.11]) by imr-da03.mx.aol.com (8.14.1/8.14.1) with ESMTP id p31C9B4s032033 for ; Fri, 1 Apr 2011 08:09:11 -0400 Received: from core-mkd001c.r1000.mail.aol.com (core-mkd001.r1000.mail.aol.com [172.29.98.129]) by mtaomg-ma04.r1000.mx.aol.com (OMAG/Core Interface) with ESMTP id 61D68E000086 for ; Fri, 1 Apr 2011 08:09:11 -0400 (EDT) From: MikeEasley@aol.com X-Original-Message-ID: <610c.1d6d9b5e.3ac71a67@aol.com> X-Original-Date: Fri, 1 Apr 2011 08:09:11 -0400 (EDT) Subject: Re: [LML] Re: Finishing Elevator Question X-Original-To: lml@lancaironline.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="part1_610c.1d6d9b5e.3ac71a67_boundary" X-Mailer: AOL 9.6 sub 5001 X-AOL-IP: 75.71.55.189 X-Originating-IP: [75.71.55.189] x-aol-global-disposition: G X-AOL-SCOLL-SCORE: 0:2:463679008:93952408 X-AOL-SCOLL-URL_COUNT: 0 x-aol-sid: 3039ac1d290b4d95c0671e9a --part1_610c.1d6d9b5e.3ac71a67_boundary Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit The elevators of the ES are flat, so I'm guessing the other models have flat airfoils on the elevators too. I checked with Tim Ong and he told me the airfoil design is flat. Mike Easley Colorado Springs In a message dated 3/31/2011 10:44:37 A.M. Mountain Daylight Time, michael.s.reinath@nasa.gov writes: Take a look in Abbott and Doenhoff, "Theory of Wing Sections". There are plenty of airfoils with concave shape for the aft 25% of the section, especially the symmetrical ones. It's the airfoil shape. If you fill it in, you are changing the airfoil shape and no longer have the design airfoil. Mike Reinath LNC2 MKII @ 1050 hrs -- For archives and unsub http://mail.lancaironline.net:81/lists/lml/List.html --part1_610c.1d6d9b5e.3ac71a67_boundary Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable
The elevators of the ES are flat, so I'm guessing the other models hav= e=20 flat airfoils on the elevators too.  I checked with Tim Ong and he tol= d me=20 the airfoil design is flat.
 
Mike Easley
Colorado Springs
 
In a message dated 3/31/2011 10:44:37 A.M. Mountain Daylight Time,=20 michael.s.reinath@nasa.gov writes:
= Take a=20 look in Abbott and Doenhoff, "Theory of Wing Sections". There are
plen= ty of=20 airfoils with concave shape for the aft 25% of the section,
especially= the=20 symmetrical ones. It's the airfoil shape. If you fill it in,
you are= =20 changing the airfoil shape and no longer have the design airfoil.

= Mike=20 Reinath
LNC2 MKII @ 1050 hrs


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For archives and unsub= =20 http://mail.lancaironline.net:81/lists/lml/List.html<= /DIV> --part1_610c.1d6d9b5e.3ac71a67_boundary--