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Cable length

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A cable length or length of cable is a nauticalunit of measure equal to one tenth of a nautical mile or approximately 100 fathoms. Owing to anachronisms and varying techniques of measurement, a cable length can be anywhere from 169 to 220 m (185 to 241 yd), depending on the standard used. Etymology and originThe modern word cable is directly descended from the Middle English cable, cabel or kabel and also occurs in Middle Dutch and Middle German.

RopewalkRopewalkA ropewalk is a long straight narrow lane, or a covered pathway, where long strands of material are laid before being twisted into rope. Due to the length of some ropewalks, workers may use bicycles to get from one end to the other. Many ropewalks were in the open air, while others were covered only by roofs. Ropewalks historically frequently caught fire, as hemp dust ignites easily and burns fiercely.Nautical mileNautical mileA nautical mile is a unit of length used in air, marine, and space navigation, and for the definition of territorial waters. Historically, it was defined as the meridian arc length corresponding to one minute (⁠1/60⁠ of a degree) of latitude at the equator, so that Earth's polar circumference is very near to 21,600 nautical miles (that is 60 minutes × 360 degrees). Today the international nautical mile is defined as exactly 1,852 metres (about 6,076 ft; 1.151 mi).FathomFathomA fathom is a unit of length in the imperial and U.S. customary systems equal to 6 feet (1.8288 m), used especially for measuring the depth of water. The fathom is neither an international standard (SI) unit, nor an internationally accepted non-SI unit. Historically, it was the maritime measure of depth in the English-speaking world but, apart from within the US, charts now use metres. There are two yards (6 feet) in an imperial fathom.RopeRopeA rope is a group of yarns, plies, fibres, or strands that are twisted or braided together into a larger and stronger form. Ropes have high tensile strength and can be used for dragging and lifting. Rope is thicker and stronger than similarly constructed cord, string, and twine. ConstructionRope may be constructed of any long, fibrous material (e.g., rattan, a natural material), but generally is constructed of certain natural or synthetic fibres.Chatham DockyardChatham DockyardFormer Royal Navy Dockyard in Kent, EnglandChatham Dockyard was a Royal Navy Dockyard located on the River Medway in Kent. Established in Chatham in the mid-16th century, the dockyard subsequently expanded into neighbouring Gillingham; at its most extensive (in the early 20th century) two-thirds of the dockyard lay in Gillingham, one-third in Chatham.MetreMetreThe metre (or meter in US spelling; symbol: m) is the base unit of length in the International System of Units (SI). Since 2019, the metre has been defined as the length of the path travelled by light in vacuum during a time interval of ⁠1/299792458⁠ of a second, where the second is defined by a hyperfine transition frequency of caesium.Imperial unitsImperial unitsThe imperial system of units, imperial system or imperial units (also known as British Imperial or Exchequer Standards of 1826) is the system of units first defined in the British Weights and Measures Act 1824 and which continued to be developed through a series of Weights and Measures Acts and amendments. The imperial system developed from earlier English units as did the related but differing system of customary units of the United States.United States customary unitsUnited States customary unitsUnited States customary units form a system of measurement units commonly used in the United States and most U.S. territories since being standardized and adopted in 1832. The United States customary system developed from English units that were in use in the British Empire before the U.S. became an independent country.Unit of measurementUnit of measurementA unit of measurement, or unit of measure, is a definite magnitude of a quantity, defined and adopted by convention or by law, that is used as a standard for measurement of the same kind of quantity. Any other quantity of that kind can be expressed as a multiple of the unit of measurement, For example, a length is a physical quantity. The metre (symbol: m) is a unit of length that represents a definite predetermined length.United States NavyUnited States NavyMaritime service branch of the U.S. militaryMilitary unitThe United States Navy (USN) is the maritimeservice branch of the United States Armed Forces and is designated as the navy of the United States in the Constitution. With 290 combat vessels, it is the world's second largest navy, behind the People's Liberation Army Navy, and by far the largest by displacement, at 4.5 million tons in 2021.SeamanshipSeamanshipSeamanship is the art, competence, and knowledge of operating a ship, boat or other craft on water. TheOxford Dictionary states that seamanship is "The skill, techniques, or practice of handling a ship or boat at sea."Royal NavyRoyal NavyThe Royal Navy (RN) is the naval warfare force of the United Kingdom, responsible for defending the country, the Crown Dependencies, and the Overseas Territories from naval attack or invasion. It is a component of His Majesty's Naval Service, and its officers hold their commissions from the King. Although warships were used by English and Scottish kings from the early medieval period, the first major maritime engagements were fought in the Hundred Years' War against France.

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