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X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: <13brv3@bellsouth.net> Received: from imf19aec.mail.bellsouth.net ([205.152.59.67] verified) by logan.com (CommuniGate Pro SMTP 4.3c5) with ESMTP id 931150 for flyrotary@lancaironline.net; Tue, 03 May 2005 13:18:20 -0400 Received-SPF: pass receiver=logan.com; client-ip=205.152.59.67; envelope-from=13brv3@bellsouth.net Received: from rd ([65.6.194.9]) by imf19aec.mail.bellsouth.net (InterMail vM.5.01.06.11 201-253-122-130-111-20040605) with ESMTP id <20050503171733.DTFK2470.imf19aec.mail.bellsouth.net@rd> for ; Tue, 3 May 2005 13:17:33 -0400 From: "Russell Duffy" <13brv3@bellsouth.net> To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Re: Static MAP readings? Date: Tue, 3 May 2005 12:17:44 -0500 Message-ID: <033f01c55004$053e08d0$6101a8c0@rd> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0340_01C54FDA.1C6800D0" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.6626 Importance: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2527 In-Reply-To: This is a multi-part message in MIME format. ------=_NextPart_000_0340_01C54FDA.1C6800D0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable I'm not sure that the absolute MAP numbers that you quoted are of any = value. What is important IMO is the difference between the atmospheric pressure = and the MAP. I am shooting for the same value for atmospheric and MAP. =20 =20 You're right of course Jim. If I were looking at tenths of an inch of pressure, I would worry about the atmospheric. I think we can safely = assume standard 29.92" atmospheric for the purposes of looking for multiple = inches of missing pressure. =20 =20 I will try to note the altimeter reading next time, and it's certainly dialed into my altimeter from Sunday still, so I can even look at what = it was when I collected these numbers. =20 =20 Rusty =20 ------=_NextPart_000_0340_01C54FDA.1C6800D0 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Message

I'm not sure that the absolute MAP numbers that you quoted are of = any=20 value. What is important IMO is the difference between the atmospheric = pressure=20 and the MAP. I am shooting for the same value for atmospheric and=20 MAP.

You're right=20 of course Jim. If I were looking at tenths of an inch of pressure, = I would=20 worry about the atmospheric. I think we can safely assume = standard=20 29.92" atmospheric for the purposes of looking for multiple inches = of=20 missing pressure.

I will try to=20 note the altimeter reading next time, and it's certainly dialed into my=20 altimeter from Sunday still, so I can even look at what it was when = I=20 collected these numbers.

Rusty

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