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Subject:	Re: converting a verbal scale statement -- help needed!
From:	Maps-L Moderator <[log in to unmask]>
Reply To:	[log in to unmask]
Date:	Thu, 18 Dec 2008 15:11:05 -0600
Content-Type:	text/plain
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-------- Original Message --------
Subject:        Re: converting a verbal scale statement -- help needed!
Date:   Thu, 18 Dec 2008 21:01:38 GMT
From:   [log in to unmask] <[log in to unmask]>
To:     [log in to unmask]

Dang, I should have signed my previous missive.

http://answers.yahoo.com/question/index?qid=20080312212813AAoiEF3

It makes sense that a nautical mile would refer to a minute of latitude rather than a minute of longitude at the equator.

Clarke 1866 (NAD 1927) - I get 1849.055 meters, and
GRS 1980 (NAD 1983) - I get 1849.104 meters.

The 1851.851 number comes from the original definition of the meter (1 part in 10,000,000 of a meridian through Paris).

Joe McCollum
FIA
Knoxville, TN

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