nautical miles?

Question

how to get a nautical miles

Answer 1

Well, first we should know that for distance sailors used (and still use) the so called 'nautical mile'. If you slice Earth into two equal halves right through its center along equator for example, then divide the perimeter (the circumference) into 360 degrees, then each degree into 60 arc minutes, the length you get is approximately 1 nautical mile. So, to recap, one nautical mile is the arc distance of about 1 minute of a degree (or 1/60th of a degree) of Earth. We say approximate because if you choose to slice Earth along the line that goes through the North and South poles you would get a slightly different result due to the fact that Earth is not a perfect sphere - it is slightly flattened at the poles. Difference between the polar and equatorial diameter being about 23.4 nautical miles out of 6880 nautical miles. Exact value for the nautical mile is taken to be the average of the two (polar and equatorial) and is:

1 nautical mile = 1.15 miles = 1852 meters = 6067 feet

Answer 2

Sue is incorrect.

A nautical mile is derived from the minute unit of angle traveled about the equator.

Furthermore, she is claiming that it is an angular measure... its not. A nautical mile is a specific quantity.

Answer 3

A nautical mile is the distance travelled when you go up or down a line of longitude through a change in latitude of 1 minute.
So, on a line of longitude,
Distance in Nautical miles = 60 x (change in latitude in degrees)

Answer 4

one nautical mile now equals exactly 1852 meters, 1.15077945 statute miles, or 6076.11549 feet. ...