Come on you guys, get it right! Nautical miles has never had anything to do with longitude.

ie One minute of longitude at the poles isn't even a bees dick.

One minute of Latitide is however getting close, but still not correct. Since the earth or not a perfect spere the length of one minute of latitude at any location is correctly called a sea mile, if you take the arithmatical mean of the distances for one minute of latitude you get 1852 metres, tho it was actually 6077 feet rounded up to 6080 feet.

What ever a foot is!!!

Cheers Phil