How to use international nautical mile in a sentence? Find typical usage patterns (collocations)/phrases/context for "international nautical mile" and check conjugation/comparative form for "international nautical mile". Mastering all the usages of "international nautical mile" from sentence examples published by news publications.
The United States did not adopt the international nautical mile until 1954. Britain adopted it in 1970, but legal references to the obsolete unit are now converted to 1853 metres.
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It was closely related to the nautical mile, which was originally determined as 1 minute of arc along a great circle of the Earth, but is nowadays defined as exactly 1852 metres. The US National Institute of Standards and Technology (NIST) notes that: "The international nautical mile of 1 852 meters (6 076.115 49...feet) was adopted effective July 1, 1954, for use in the United States. The value formerly used in the United States was 6 080.20 feet = 1 nautical (geographical or sea) mile." (The deprecated value, 6080.2 feet, is n) A separate reference identifies the geographic mile as being identical to the international nautical mile of 1852 metres (and slightly shorter than the British nautical mile of ).
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The authalic (equal area) radius of the Clarke 1866 ellipsoid is . The resulting arcminute is . The United States chose five significant digits for its nautical mile, 6080.2 feet, whereas the United Kingdom chose four significant digits for its Admiralty mile, 6080 feet. In 1929, the international nautical mile was defined by the First International Extraordinary Hydrographic Conference in Monaco as exactly 1,852 metres.
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Historical definition – 1 nautical mile Visual comparison of a kilometre, statute mile, and nautical mile A nautical mile is a unit of measurement used in air, marine, and space navigation, and for the definition of territorial waters. Historically, it was defined as one minute ( of a degree) of latitude along any line of longitude. Today the international nautical mile is defined as exactly 1852 metres (about 1.15 miles). The derived unit of speed is the knot, one nautical mile per hour.
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Diagram showing limits of state and federal ownership of the sea bed (Minerals Management Service) Each coastal state owns the territory extending from the shore at mean low tide, and has jurisdiction to decide whether or not, and under what terms, to lease the territory for oil and gas. Exceptions include Texas and the west coast of Florida, which for historical reasons own the seabed out to from the shore. Louisiana is included in the 3 nautical mile rule, but because it had active offshore leases defined before 1950 (and before most other states), its territory is measured using the Admiralty Nautical Mile, while other states use the International Nautical Mile, adopted by the United States in 1954. The exact definition of the shoreline, dividing state waters offshore and potential private land onshore, depends on state law.
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