X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from bay0-omc3-s17.bay0.hotmail.com ([65.54.246.217] verified) by logan.com (CommuniGate Pro SMTP 5.1c.3) with ESMTP id 1352752 for flyrotary@lancaironline.net; Mon, 28 Aug 2006 13:43:08 -0400 Received-SPF: pass receiver=logan.com; client-ip=65.54.246.217; envelope-from=thomphy@msn.com Received: from hotmail.com ([207.46.8.141]) by bay0-omc3-s17.bay0.hotmail.com with Microsoft SMTPSVC(6.0.3790.1830); Mon, 28 Aug 2006 10:42:29 -0700 Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Mon, 28 Aug 2006 10:42:29 -0700 Message-ID: Received: from 71.34.92.196 by BAY118-DAV3.phx.gbl with DAV; Mon, 28 Aug 2006 17:42:26 +0000 X-Originating-IP: [71.34.92.196] X-Originating-Email: [thomphy@msn.com] X-Sender: thomphy@msn.com From: "Thomas Phy" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] OT: Gardenhose as level Date: Mon, 28 Aug 2006 10:57:53 -0700 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1409 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1409 X-OriginalArrivalTime: 28 Aug 2006 17:42:29.0197 (UTC) FILETIME=[551EFFD0:01C6CAC9] Return-Path: thomphy@msn.com Friction losses, the sun heating one side more then the other, the wind (if any) hitting one opening more then the other. If this is the only way you have @ your disposal, take an average, and cross your fingers. I built my home in Hawaii, using this method, and it was off. My last home was built using hired experts with laser levels, and it was off. Some times I think the earth, occasionally, just sucks a little harder in some spots. TP ----- Original Message ----- From: "Finn Lassen" To: "Rotary motors in aircraft" Sent: Monday, August 28, 2006 9:59 AM Subject: [FlyRotary] OT: Gardenhose as level > Only vaugely rotary related... > > I'm driving myself nuts trying to build this thing level to within 1/8 > to 1/4" ! > > I'm using a gardenhose, terminating in clear PVC tubing at each end, to > get reference points at the four corners. > > The thing is that the level varies 1/2" or more over hours. One end will > be up, 1/2" over where it was an hour ago and the other end down. Then > it changes, etc. How can a guy get a reliable reading this way? > > Is the friction in the hose too big to reliably use this as a level? > > Do I need to terminate each end in funnels to get bigger ambient pressure? > > Finn > (frustrated) > > > ---------------------------------------------------------------------------- ---- ---------------------------------------------------------------------------- ---- > -- > Homepage: http://www.flyrotary.com/ > Archive and UnSub: http://mail.lancaironline.net/lists/flyrotary/ >