X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from cdptpa-omtalb.mail.rr.com ([75.180.132.120] verified) by logan.com (CommuniGate Pro SMTP 6.0.5) with ESMTP id 6421488 for lml@lancaironline.net; Fri, 16 Aug 2013 14:43:14 -0400 Received-SPF: pass receiver=logan.com; client-ip=75.180.132.120; envelope-from=dfs155@roadrunner.com Return-Path: X-Authority-Analysis: v=2.0 cv=XpZ4yC59 c=1 sm=0 a=ylouvZg54QhkCMWGUncgwg==:17 a=9uwH5_Ju5zAA:10 a=zTVDa7HKqxcA:10 a=8nJEP1OIZ-IA:10 a=doupyKFmAAAA:8 a=KGjhK52YXX0A:10 a=3HAsyDWx3jMA:10 a=5mrtCqN3qsO3Ztcn1ZEA:9 a=wPNLvfGTeEIA:10 a=ylouvZg54QhkCMWGUncgwg==:117 X-Cloudmark-Score: 0 X-Authenticated-User: X-Originating-IP: 98.145.130.193 Received: from [98.145.130.193] ([98.145.130.193:1242] helo=dan) by cdptpa-oedge02.mail.rr.com (envelope-from ) (ecelerity 2.2.3.46 r()) with ESMTP id EB/99-15971-1A27E025; Fri, 16 Aug 2013 18:42:41 +0000 Message-ID: From: "Dan Schaefer" To: "Lancair list" Subject: Re: Compass calibration Date: Fri, 16 Aug 2013 11:42:09 -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 6.00.2900.5931 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.6157 By the way all, be aware that in many parts of the country, the magnetic field lines have shifted enough to change runway numbers. my home field (KCOE, Coeur d'Alene, Idaho) had to renumber the runways recently - Rnwy 1/29 became 2/20 and 5/23 became 6/24. Be sure to check whether the airport where you do your calibration has changed recently and if field compass rose (if there is one) has been updated to match it or you will mis-calibrate your compass. Dan Schaefer