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No conflict between the definitions existed in practice, [citation needed] since depths on imperial nautical charts were indicated in feet if less than 30 feet (9.1 m) and in fathoms for depths greater than that. Until the 19th century in England, the length of the fathom was more variable: from 5 + 1 ⁄ 2 feet on merchant vessels to either 5 ...
Fathom: Length: Knot: Speed: League: Length: Nautical mile: Length: Rhumb: Angle: The angle between two successive points of the thirty-two point compass (11 degrees 15 minutes) (rare) [1] Shackle: Length: Before 1949, 12.5 fathoms; later 15 fathoms. [2] Toise: Length: Toise was also used for measures of area and volume Twenty-foot equivalent ...
1.0 cu yd (0.76 m 3) cubic foot: cuft (cufoot) cu ft long code "cufoot" outputs cubic foot (and never feet) 1.0 cu ft (0.028 m 3) cubic inch: cuin cu in 1.0 cu in (16 cm 3) Imperial: imperial barrel: impbbl imp bbl 36 imp gal 1.0 imp bbl (160 L; 36 imp gal; 43 US gal) imperial bushel: impbsh imp bsh 8 imp gal
Conversions between units in the metric system are defined by their prefixes (for example, 1 kilogram = 1000 grams, 1 milligram = 0.001 grams) and are thus not listed in this article. Exceptions are made if the unit is commonly known by another name (for example, 1 micron = 10 −6 metre).
International: 185.2 m, equivalent to 1 ⁄ 10 nautical mile; UK traditional: 100 fathoms (600 ft; 180 m), though (The Admiralty) used 1 ⁄ 10 of a sea mile, 1 minute of latitude locally. US customary : 120 fathoms (720 ft; 220 m) [3] In 2008 the Royal Navy in a handbook defined it as . A cable equals one-tenth of a sea mile - 608 ft.
In the North, often 2 feet, In Prussia 17 ⁄ 8 feet, in the South variable, often 2 + 1 ⁄ 2 feet. The smallest known German elle is 402.8 mm, the longest 811 mm. Klafter – Fathom, usually 6 feet. Regional changes from 1.75 m in Baden to 3 m in Switzerland. Rute – Rod, Roman origin, use as land measure. Very differing definitions, 10, 12 ...
A sailor and a man on shore, both sounding the depth with a line. Depth sounding, often simply called sounding, is measuring the depth of a body of water.Data taken from soundings are used in bathymetry to make maps of the floor of a body of water, such as the seabed topography.
In the FFF system, heat transfer coefficients are conventionally reported as BTU per foot-fathom per degree Fahrenheit per fortnight. [c] Thermal conductivity has units of BTU per fortnight per furlong per degree Fahrenheit. Like the more common furlong per fortnight, [4] a firkin per fortnight can refer to "any obscure unit". [10]