Return-Path: Received: from smtp11.bellglobal.com ([204.101.251.53]) by truman.olsusa.com (Post.Office MTA v3.5.1 release 219 ID# 0-52269U2500L250S0V35) with ESMTP id com for ; Mon, 4 Oct 1999 20:16:31 -0400 Received: from default (ppp74.on.bellglobal.com [206.172.245.74]) by smtp11.bellglobal.com (8.8.5/8.8.5) with SMTP id UAA00006 for ; Mon, 4 Oct 1999 20:24:14 -0400 (EDT) Message-ID: <002b01bf0ec8$03a29d20$0a55d0d8@default> From: "Ian B. Crowe" To: "Marvin Kaye" Subject: Pitot tube pressures. Date: Mon, 4 Oct 1999 20:24:38 -0400 Organization: Corvi Trade Consultants Inc X-Mailing-List: lancair.list@olsusa.com Mime-Version: 1.0 <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> << Lancair Builders' Mail List >> <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> >> Given that the ASI measures pressure through its barometric capsule can anyone give me the formula that will translate knots or MPH into pressure expressed in inches of water. I have a manometer and would like to calibrate a pressure switch to close when the speed drops to 90mph. I intend to use it as a gear warning. I have the switch, which was used in another LNC 2 and it is calibrateable. I may have to readjust it but would like to get it in the right ball park. Regards Ian Crowe. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> LML website: http://www.olsusa.com/Users/Mkaye/maillist.html