-------- Original Message --------
Subject: Re: converting a verbal scale statement -- help needed!
Date: Thu, 18 Dec 2008 19:28:18 GMT
From: [log in to unmask] <[log in to unmask]>
To: [log in to unmask]http://www.kb.nl/skd/mathemat.html
has one sea-league = 3 nautical miles
1 nautical mile = 1854.965 meters (actually NIST says 1852 m).
= 60 per degree.
GRS1980 has equatorial radius = 6378137 m.
That would make one minute of arc along equator = 1855.325 m.
Clarke 1866 has equatorial radius = 6378206.4 m.
That would make one minute of arc along equator = 1855.345 m.