Return-Path: Received: from simmts4-srv.bellnexxia.net ([206.47.199.13] verified) by logan.com (CommuniGate Pro SMTP 4.1.3) with ESMTP id 2575939 for flyrotary@lancaironline.net; Thu, 11 Sep 2003 10:30:34 -0400 Received: from nbnet.nb.ca ([207.179.186.10]) by simmts4-srv.bellnexxia.net (InterMail vM.5.01.06.04 201-253-122-130-104-20030726) with ESMTP id <20030911143032.KEEU2847.simmts4-srv.bellnexxia.net@nbnet.nb.ca> for ; Thu, 11 Sep 2003 10:30:32 -0400 Message-ID: <3F608771.A65E0073@nbnet.nb.ca> Date: Thu, 11 Sep 2003 11:32:17 -0300 From: Rino X-Mailer: Mozilla 4.77 [en] (Win98; U) X-Accept-Language: en MIME-Version: 1.0 To: Rotary motors in aircraft Subject: Intake manifold pressure References: Content-Type: text/plain; charset=iso-8859-2 Content-Transfer-Encoding: 7bit I have a question for Tracy and/or Ed. on pressure gauge calibration. I am confused when it comes to calibrating the instruments I have the Motorola MPX 4250 pressure sensors for my intake manifold and turbo pressures. I want to calibrate the gauges in inches. The Question: Do I start at sea level at (29.92") or at Zero I think that the confusion comes from the automotive vacuum gauges that start at zero at sea level pressure and get 30" at full vacuum. Thanks Rino Getting closer to first flight