X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Wed, 31 May 2006 18:02:53 -0400 Message-ID: X-Original-Return-Path: Received: from mail5.tpgi.com.au ([203.12.160.101] verified) by logan.com (CommuniGate Pro SMTP 5.0.9) with ESMTPS id 1133908 for lml@lancaironline.net; Tue, 30 May 2006 21:31:00 -0400 Received-SPF: pass receiver=logan.com; client-ip=203.12.160.101; envelope-from=domcrain@tpg.com.au X-TPG-Antivirus: Passed Received: from CRAIN (60-240-63-36.tpgi.com.au [60.240.63.36]) by mail5.tpgi.com.au (envelope-from domcrain@tpg.com.au) (8.13.6/8.13.6) with ESMTP id k4V1U6U9014589 for ; Wed, 31 May 2006 11:30:08 +1000 From: "Dominic V Crain" X-Original-To: "'Lancair Mailing List'" Subject: RE: [LML] Re: knots to you X-Original-Date: Wed, 31 May 2006 11:30:05 +1000 X-Original-Message-ID: <001101c68451$bff13030$0202a8c0@CRAIN> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0012_01C684A5.919D4030" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.6626 Importance: Normal In-Reply-To: X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2869 This is a multi-part message in MIME format. ------=_NextPart_000_0012_01C684A5.919D4030 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Doesn't work on Mercator charts latitudinally either. But it still ain't the point boys. "Paul, I'm with you. I'm calibrated in MPH (statute) However, a little background. One nautical mile is exactly one minute mark on the vertical scale of a marine (or aviation) chart. This doesn't work with the horizontal scales as they shrink towards the poles. Having this simple measure so readily available, the early navigators fell into using Knots. It still is very useful when using charts. Mark Ravinski" ------=_NextPart_000_0012_01C684A5.919D4030 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Doesn’t work on Mercator = charts latitudinally either.

But it still ain’t the point = boys.

 

“Paul,

I'm with you.  I'm = calibrated in MPH (statute)

However, a little = background.

One nautical mile is = exactly one minute mark on the vertical scale of a marine (or aviation) = chart.

This doesn't work with the horizontal scales as they shrink towards the poles.

Having this simple measure = so readily available, the early navigators fell into using = Knots.

It still is very useful = when using charts.

 

Mark Ravinski”

 

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