X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Mon, 03 May 2010 18:40:26 -0400 Message-ID: X-Original-Return-Path: Received: from web51903.mail.re2.yahoo.com ([206.190.48.66] verified) by logan.com (CommuniGate Pro SMTP 5.3.6) with SMTP id 4246268 for lml@lancaironline.net; Mon, 03 May 2010 17:20:17 -0400 Received-SPF: none receiver=logan.com; client-ip=206.190.48.66; envelope-from=visfishdo@yahoo.com Received: (qmail 11195 invoked by uid 60001); 3 May 2010 21:19:42 -0000 DomainKey-Signature:a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com; h=Message-ID:X-YMail-OSG:Received:X-Mailer:Date:From:Subject:To:MIME-Version:Content-Type:Content-Transfer-Encoding; b=OTbuov/S5C3mZiA2TL7pL4vvuguvB7LGmwe4yIPO9c15qhPlSvOC4bF/eXD2kz+K4fKOawE1ZwUvUtvxZHcprwEjj7rgUM2RJcAaqAdJbXM4CFV/JFdmiq5X33rfa16D3it4jQ4+qvnKuyRHX9qTBgq8YdO22YgpaPm0uwNpqws=; X-Original-Message-ID: <474698.9926.qm@web51903.mail.re2.yahoo.com> X-YMail-OSG: EHtHvloVM1nyGVX63OAUEw4YbqmJ1NpKceCsr3DqZI38V_k OvOHYxyjO0cGLQSctS34SmGXYVQuXKChIlGhOwCJm3rB5L4JrijJBB_SqxKA ieF5kHHd5zamVu7gKAeJwNOBC0SCQpEkbwCkB8ssrK6GNkTHLHUTPfgOvQTX G3DwC2LD10wL5p7AtcG3Gl93eB_2Y8sbRZOMJDsH_f8VKbycjMnZ3nDCm9oy s4ZFSuqZ8Q1OnLP.kYbii62TD8qCXYbiUVrt26yG9.7UOiq29ZdaSdw3_iiB jquffAde52TSv Received: from [71.243.192.184] by web51903.mail.re2.yahoo.com via HTTP; Mon, 03 May 2010 14:19:42 PDT X-Mailer: YahooMailRC/348.5 YahooMailWebService/0.8.103.269680 X-Original-Date: Mon, 3 May 2010 14:19:42 -0700 (PDT) From: Doug owen Subject: Vibration X-Original-To: lml@lancaironline.net MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable Hi from Doug Owen=A0=A0=A0 =0AI had a similar irritating vibration - I got = to the point I did a vibration analysis - I cant recall the name, but the a= nalyst was out of Burbank.=A0 Let me know & I can get the name if you wish = to pursue it further.=0A=0AShort of it is, my vibration was exactly 3x the = rpm of the engine. 3 blade prop --> conclusion was tip vortices hitting the= airframe. =0A=0AI found I could smooth it out by various combinations of R= PM & Power setting. =0A=0AGood Luck=0A=0A=0A