Return-Path: Received: from rwcrmhc14.comcast.net ([216.148.227.89] verified) by logan.com (CommuniGate Pro SMTP 4.3c3) with ESMTP id 855171 for flyrotary@lancaironline.net; Tue, 05 Apr 2005 01:02:33 -0400 Received-SPF: none receiver=logan.com; client-ip=216.148.227.89; envelope-from=n3773@comcast.net Received: from rv8 (c-24-21-140-241.hsd1.or.comcast.net[24.21.140.241]) by comcast.net (rwcrmhc14) with SMTP id <2005040505015001400con2ce>; Tue, 5 Apr 2005 05:01:50 +0000 Message-ID: <005f01c5399c$920f8820$f18c1518@rv8> Reply-To: "kevin lane" From: "kevin lane" To: "Rotary motors in aircraft" References: Subject: class in curves Date: Mon, 4 Apr 2005 21:57:44 -0700 MIME-Version: 1.0 Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=original Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.2180 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 Ed - I am building intakes right now and noticed in your photo many tangent lines you used to derive your shapes. I'd love a quick lesson on what you are doing. I've been simply mocking what I think sorta' looks the same. Since I am taking AutoCAD classes I could design stuff to any accuracy. I'm guessing that your lines are some type of maximum curvature limits to avoid separation? I always wondered how one measured degrees of curvature on a curve. I know, like you don't have enough to do ! :-) Kevin Lane Portland, OR e-mail-> n3773@comcast.net