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Knot (unit)

Index Knot (unit)

The knot is a unit of speed equal to one nautical mile per hour, exactly 1.852 km/h (approximately 1.15078 mph). [1]

52 relations: Adiabatic process, Admiralty, Admiralty chart, Airspeed, Airspeed indicator, Aviation, Beaufort scale, Calibrated airspeed, Chip log, Compressible flow, Data logger, Dead reckoning, Equivalent airspeed, Federal Aviation Regulations, Fluid, Foot (unit), Freight transport, Ground speed, Hour, Hourglass, Hull speed, Inch, Indicated airspeed, Institute of Electrical and Electronics Engineers, International Bureau of Weights and Measures, International Organization for Standardization, International System of Units, ISO 80000-3, Knot, Knot density, Knotted cord, Latitude, Linear scale, Master (naval), Mercator projection, Meridian (geography), Meteorology, Metre per second, Minute and second of arc, Nautical mile, Navigation, Oceanography, Orders of magnitude (speed), Pitot-static system, Position error, Rope (unit), Royal Yachting Association, Rudyard Kipling, Speed, True airspeed, ..., Velocity, Wind speed. Expand index (2 more) »

Adiabatic process

In thermodynamics, an adiabatic process is one that occurs without transfer of heat or matter between a thermodynamic system and its surroundings.

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The Admiralty, originally known as the Office of the Admiralty and Marine Affairs, was the government department responsible for the command of the Royal Navy firstly in the Kingdom of England, secondly in the Kingdom of Great Britain, and from 1801 to 1964, the United Kingdom and former British Empire.

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Admiralty chart

Admiralty charts are nautical charts issued by the United Kingdom Hydrographic Office (UKHO) and subject to Crown Copyright.

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Airspeed is the speed of an aircraft relative to the air.

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Airspeed indicator

The airspeed indicator or airspeed gauge is an instrument used in an aircraft to display the craft's airspeed, typically in knots, to the pilot.

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Aviation, or air transport, refers to the activities surrounding mechanical flight and the aircraft industry.

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Beaufort scale

The Beaufort scale is an empirical measure that relates wind speed to observed conditions at sea or on land.

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Calibrated airspeed

Calibrated airspeed (CAS) is indicated airspeed corrected for instrument and position error.

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Chip log

A chip log, also called common log, ship log, or just log, is a navigation tool mariners use to estimate the speed of a vessel through water.

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Compressible flow

Compressible flow (gas dynamics) is the branch of fluid mechanics that deals with flows having significant changes in fluid density.

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Data logger

A data logger (also datalogger or data recorder) is an electronic device that records data over time or in relation to location either with a built in instrument or sensor or via external instruments and sensors.

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Dead reckoning

In navigation, dead reckoning is the process of calculating one's current position by using a previously determined position, or fix, and advancing that position based upon known or estimated speeds over elapsed time and course.

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Equivalent airspeed

Equivalent airspeed (EAS) is calibrated airspeed (CAS) corrected for the compressibility of air at a non-trivial Mach number.

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Federal Aviation Regulations

The Federal Aviation Regulations, or FARs, are rules prescribed by the Federal Aviation Administration (FAA) governing all aviation activities in the United States.

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In physics, a fluid is a substance that continually deforms (flows) under an applied shear stress.

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Foot (unit)

The foot (feet; abbreviation: ft; symbol: ′, the prime symbol) is a unit of length in the imperial and US customary systems of measurement.

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Freight transport

Freight transport is the physical process of transporting commodities and merchandise goods and cargo.

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Ground speed

Ground speed is the horizontal speed of an aircraft relative to the ground.

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An hour (symbol: h; also abbreviated hr.) is a unit of time conventionally reckoned as of a day and scientifically reckoned as 3,599–3,601 seconds, depending on conditions.

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An hourglass (or sandglass, sand timer, or sand clock) is a device used to measure the passage of time.

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Hull speed

Hull speed or displacement speed is the speed at which the wavelength of the boat's bow wave (in displacement mode) is equal to the boat length.

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The inch (abbreviation: in or &Prime) is a unit of length in the (British) imperial and United States customary systems of measurement now formally equal to yard but usually understood as of a foot.

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Indicated airspeed

Indicated airspeed (IAS) is the airspeed read directly from the airspeed indicator (ASI) on an aircraft, driven by the pitot-static system.

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Institute of Electrical and Electronics Engineers

The Institute of Electrical and Electronics Engineers (IEEE) is a professional association with its corporate office in New York City and its operations center in Piscataway, New Jersey.

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International Bureau of Weights and Measures

The International Bureau of Weights and Measures (Bureau international des poids et mesures) is an intergovernmental organization established by the Metre Convention, through which Member States act together on matters related to measurement science and measurement standards.

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International Organization for Standardization

The International Organization for Standardization (ISO) is an international standard-setting body composed of representatives from various national standards organizations.

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International System of Units

The International System of Units (SI, abbreviated from the French Système international (d'unités)) is the modern form of the metric system, and is the most widely used system of measurement.

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ISO 80000-3

ISO 80000-3:2006 is an ISO standard entitled Quantities and units – Part 3: Space and time, superseding ISO 31-1 and ISO 31-2.

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A knot is a method of fastening or securing linear material such as rope by tying or interweaving.

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Knot density

Knot density is a traditional measure for quality of handmade or knotted pile carpets.

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Knotted cord

A knotted cord was a primitive surveyor's tool for measuring distances.

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In geography, latitude is a geographic coordinate that specifies the north–south position of a point on the Earth's surface.

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Linear scale

A linear scale, also called a bar scale, scale bar, graphic scale, or graphical scale, is a means of visually showing the scale of a map, nautical chart, engineering drawing, or architectural drawing.

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Master (naval)

The master, or sailing master, was a historical rank for a naval officer trained in and responsible for the navigation of a sailing vessel.

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Mercator projection

The Mercator projection is a cylindrical map projection presented by the Flemish geographer and cartographer Gerardus Mercator in 1569.

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Meridian (geography)

A (geographical) meridian (or line of longitude) is the half of an imaginary great circle on the Earth's surface, terminated by the North Pole and the South Pole, connecting points of equal longitude.

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Meteorology is a branch of the atmospheric sciences which includes atmospheric chemistry and atmospheric physics, with a major focus on weather forecasting.

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Metre per second

Metre per second (American English: meter per second) is an SI derived unit of both speed (scalar) and velocity (vector quantity which specifies both magnitude and a specific direction), defined by distance in metres divided by time in seconds.

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Minute and second of arc

A minute of arc, arcminute (arcmin), arc minute, or minute arc is a unit of angular measurement equal to of one degree.

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Nautical mile

A nautical mile is a unit of measurement defined as exactly.

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Navigation is a field of study that focuses on the process of monitoring and controlling the movement of a craft or vehicle from one place to another.

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Oceanography (compound of the Greek words ὠκεανός meaning "ocean" and γράφω meaning "write"), also known as oceanology, is the study of the physical and biological aspects of the ocean.

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Orders of magnitude (speed)

To help compare different orders of magnitude, the following list describes various speed levels between approximately 2.2 m/s and 3.0 m/s.

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Pitot-static system

A pitot-static system is a system of pressure-sensitive instruments that is most often used in aviation to determine an aircraft's airspeed, Mach number, altitude, and altitude trend.

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Position error

Position error is one of the errors affecting the systems in an aircraft for measuring airspeed and altitude.

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Rope (unit)

A rope may refer to any of several units of measurement initially determined or formed by ropes or knotted cords.

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Royal Yachting Association

The Royal Yachting Association (RYA) is the British national governing body for all forms of boating sport, including dinghy and yacht racing, motor and sail cruising, RIBs and sports boats, powerboat racing, windsurfing, and personal watercraft.

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Rudyard Kipling

Joseph Rudyard Kipling (30 December 1865 – 18 January 1936)The Times, (London) 18 January 1936, p. 12 was an English journalist, short-story writer, poet, and novelist.

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In everyday use and in kinematics, the speed of an object is the magnitude of its velocity (the rate of change of its position); it is thus a scalar quantity.

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True airspeed

The true airspeed (TAS; also KTAS, for knots true airspeed) of an aircraft is the speed of the aircraft relative to the airmass in which it is flying.

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The velocity of an object is the rate of change of its position with respect to a frame of reference, and is a function of time.

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Wind speed

Wind speed, or wind flow velocity, is a fundamental atmospheric quantity.

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Redirects here:

Admiralty Knot, Knot (nautical), Knot (speed), Knots (speed), Knots (unit), Nautical mile per hour.


[1] https://en.wikipedia.org/wiki/Knot_(unit)

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