Mark, So if I'm reading this correctly, since i am building a standard kr-2, but using the new airfoil, I need to use waf's for a kr-2s. Is that correct? Also, if I already have kr-2 waf's, can you have the other aft waf's bent to 3 degrees without any problems? Thanks for any help. Jim
>From: "Mark Langford" <n5...@hiwaay.net> >Reply-To: KRnet <kr...@mylist.net> >To: "KRnet" <kr...@mylist.net> >Subject: Re: KR> AS504x wing sections >Date: Fri, 10 Dec 2004 14:39:20 -0600 >MIME-Version: 1.0 >Received: from mc7-f35.hotmail.com ([65.54.253.42]) by mc7-s19.hotmail.com >with Microsoft SMTPSVC(5.0.2195.6824); Fri, 10 Dec 2004 12:39:29 -0800 >Received: from lizard.esosoft.net ([38.118.200.18]) by mc7-f35.hotmail.com >with Microsoft SMTPSVC(5.0.2195.6824); Fri, 10 Dec 2004 12:39:29 -0800 >Received: from localhost ([127.0.0.1] helo=lizard.esosoft.net)by >lizard.esosoft.net with esmtp (Exim 4.43)id 1CcrYz-000IWy-SS; Fri, 10 Dec >2004 12:40:29 -0800 >Received: from bee.hiwaay.net ([216.180.54.11])by lizard.esosoft.net with >esmtp (Exim 4.43) id 1CcrYw-000IWm-8Ffor kr...@mylist.net; Fri, 10 Dec 2004 >12:40:26 -0800 >Received: from MLangford2 (nokia-1.tbe.com [192.88.94.254])by >bee.hiwaay.net (8.13.0/8.13.0) with SMTP id iBAKdKTu1167717for ><kr...@mylist.net>; Fri, 10 Dec 2004 14:39:21 -0600 (CST) >X-Message-Info: HQbIehuYceTG3lK8qEopaSb6G+leUX+kqmatyjOSEH4= >References: <000001c4dedb$69914a30$9064a8c0@stephen> >X-MSMail-Priority: Normal >X-Mailer: Microsoft Outlook Express 6.00.2800.1437 >X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1441 >X-BeenThere: kr...@mylist.net >X-Mailman-Version: 2.1.4 >Precedence: list >List-Id: KRnet <krnet.mylist.net> >List-Unsubscribe: ><http://mylist.net/listinfo/krnet>,<mailto:krnet-requ...@mylist.net?subject=unsubscribe> >List-Archive: <http://mylist.net/private/krnet> >List-Post: <mailto:kr...@mylist.net> >List-Help: <mailto:krnet-requ...@mylist.net?subject=help> >List-Subscribe: ><http://mylist.net/listinfo/krnet>,<mailto:krnet-requ...@mylist.net?subject=subscribe> >Errors-To: krnet-boun...@mylist.net >Return-Path: krnet-boun...@mylist.net >X-OriginalArrivalTime: 10 Dec 2004 20:39:29.0656 (UTC) >FILETIME=[58D0EF80:01C4DEF8] > >Steve Jacobs wrote: > > > The Ashok sections generated and made available by your kind self and > > others offer the 48" section, but offer a shorter section for the tip - > > closer to 30". > > No doubt a good reason, but I am missing it. > > If you have a moment, maybe talk about the differences in the selection > > of airfoils included in the pdf file. > >Ashok designed that airfoil specifically for the KR2S, but the set of >points >he generated was for a standard "unity" profile, based on the chord length >being 1.000. Not that it won't work just fine on a KR2, but at the time, I >couldn't imagine anybody wanting to build a KR2 wing if they were starting >from scratch, so the templates are also designed for the KR2S, rather than >the KR2, hence the lack of a 36" chord tip template. The S wing planform >is >different, by virtue of the fact that the aft WAFs (wing attach fittings) >are ALL bent 3 degrees, rather than just half, so the aft spar rakes >forward >6 degrees. That makes the template at the end of the spar smaller (33"), >and answers your question. The wing area is compensated for by adding a >hoaky foam extension. The drawings that I made allow for the >forward-thinking builder to make his spars longer, and include a template >(30-11/16") for a tip located way out at 132.75" from the centerline. >There's a dotted outline of a spar and the mention of this option printed >on the template itself. There are a lot of details on these templates that >I put in just to make building them easy and more foolproof. > >Mark Langford, Huntsville, AL >N56ML at hiwaay.net >see KR2S project N56ML at http://home.hiwaay.net/~langford > > >_______________________________________ >Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp >to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net > >please see other KRnet info at http://www.krnet.org/info.html
