nautical mile


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nautical mile

1. a unit of length, used esp in navigation, equivalent to the average length of a minute of latitude, and corresponding to a latitude of 45?, i.e. 1852 m (6076.12 ft.)
2. a former British unit of length equal to 1853.18 m (6080 ft.), which was replaced by the international nautical mile in 1970

nautical mile

[′nȯd·ə·kəl ′mīl]
(navigation)
A unit of distance used principally in navigation; for practical consideration it is usually considered the length of 1 minute of any great circle of the earth, the meridian being the great circle most commonly used; the International Hydrographic Bureau in 1929 proposed a standard length of 1852 meters, which is known as the international nautical mile.

nautical mile

nautical mileclick for a larger image
Nautical mile.
A common unit for measuring distance. For most practical navigation purposes, all of the following units are used interchangeably as the equivalent of one nautical mile: (a) 6076.11549 ft or 1852 m; (b) one minute of arc of a great circle on a sphere having an area equal to that of the earth; (c) one minute of arc on the earth's equator, or 6076.10 ft (1851.9952 m); (d) one minute of arc of the meridian or one minute of latitude. This, however, varies between 1843 m (6046.58793 ft) at the equator, 1853 m (6079.3963 ft) at 45°N and S latitude, and 1862 m (6108.9238 ft) at the poles because the earth is an oblate spheroid. However, for the purpose of navigation, the International Nautical Mile of 1852 m (6076.1033 ft) has been adapted as the standard for air navigation.
References in periodicals archive ?
Alternative 3: Covers 2,862 square nautical miles from Vandenberg Air Force Base south past Point Conception and east past Cojo Anchorage.
As a result, the nautical mile was shortened by about three feet to 1,852 metres.
On Mhadei, during the voyage, Commander Dhonde will cover about 21600 Nautical miles under sail.
Josse overtook Loick Peyron on Gitana Eighty for the number one rank, although was only less than five nautical miles in front.
The DFG recommended expanding the no-take reserves by an additional 190 square nautical miles in waters controlled by the Channel Island National Marine Sanctuary, a unit of the federal government.
The main advantae of the GLORIA sidescan system is that it can cover large areas very quickly; last summer it surveyed 250,000 square nautical miles off the coasts of Oregon, California and Washington in 100 days and at a cost of about 1^ per acre.
I regularly saw cruise speeds of over 480 knots, and a still-air range of 2,500 nautical miles was clearly achievable during some of the long range flights we took.
Despite the signed agreements with Israel, which allow fishermen to sail as far as 12 nautical miles, Israeli navy targets Gazaae1/4aos fishermen on daily basis, and doesnae1/4aot allow them to go further than three nautical miles, which is not enough as fish is not dense.
5 nautical miles east of Ras Al-Julaiah to Qaruh island and 6 nautical miles east of Ras Al-Zour to Um Al-Mirdam island, a statement by the ministry noted.
GenAv operations outside the 40 nautical miles radius of NAIA shall be limited to local operations, excluding Clark and Subic International Airports, CAAP said.
PNN The Palestinian Centre for Human Rights (PCHR) condemns Israel's violations against Palestinian fishermen in the Gaza Strip, which continue in spite of the Israeli authorities' announcement of allowing the fishermen to fish up to 6 nautical miles off the Gaza shore.
The party opined that the new Act would affect the fishermen adversely as it limits fishing by the Indian fishermen within 12 nautical miles.