Advice 1: How to convert km/h into knots

Hearing that the ship speed was 10 knots, people who are not familiar with marine business, forced to clarify, is it much or little, good or bad. Marine terminology for the uninitiated, in most cases quite complex, but with the translation of nodes in the usual kilometers per hour and Vice versa, nothing complicated.
How to convert km/h into knots
Instruction
1
Knot - unit of speed of ship or plane, equal to one nautical mile per hour. The term comes from a primitive device for measuring the speed of a vessel called the "sectoral lag". It was a triangular Board attached to it with a thin twine with knots, and looked like a kite. The Board was thrown over the stern of the ship and counted the number of knots going over the side for some time (usually 15 seconds or a minute). The distance between the nodules and the measurement time was selected in such a way that the result is the speed in nautical miles per hour.
2
Nautical mile equals 1852 meters. This distance corresponds to one angular minute of latitude, that is, one-sixtieth part of a degree. Accordingly, 60 nautical miles along the Meridian of one degree of latitude, and the ship, running along the Meridian with a speed of one knot will be held at the hour of 1 arcmin Navigation was very convenient to use this method of measuring distances, so the knot and nautical mile are still widely used at sea and in aviation.
3
To convert kilometers per hour to knots, multiply the speed in kilometers by 0.54. The result is speed in knots or nautical miles per hour. For the reverse conversion speed in knots is multiplied by 1,852, the result is the miles per hour. Despite the fact that the nautical mile is not included in the international system of units, its use, and therefore the use of nodes, it is allowed.
4
Not to memorize rather complex ratios of the nodes, the traditional nautical miles and kilometers, for translation you can use one of the many online converters (calculators conversion of units) that will help to quickly translate some values in the other.
Note
Node is an independent unit of speed, and say "knots per hour" is wrong.

Advice 2 : How to convert knots to kilometers

The movement speed of ships is usually expressed in knots. One knot is a speed that allows the ship to be held for one hour one nautical mile. In terms familiar to most people units one knot is 1.852 kilometers per hour.
How to convert knots to kilometers
Instruction
1
In nautical practice, it is customary to measure the speed of the vessel in knots. One knot is a speed that allows you to overcome per hour one nautical mile. In terms of the familiar kilometres one knot is 1.852 kilometers per hour. Accordingly, to convert knots to kilometers per hour, it is sufficient to multiply the speed in knots to 1.852.
2
If you have access to the Internet to convert knots to kilometers, just go to Google and enter a phrase such as "5 knots to kilometers". Google is a smart search engine and has a built-in calculator for converting units, so it will show on the results page the desired information. For example, is used as an example the search phrase it will show the inscription "5 knots = 9.26 kilometers." One here means the speed in kilometers per hour.
3
The existence of nodes in Maritime practice is closely linked to the concept of "nautical mile". Initially it was taken as the length of the Earth's surface the size of one angular minute. If the vehicle is moved along the Meridian by one minute of latitude, saying that it passed one nautical mile. Later mile equated to 1852 meters.
4
The name "node" is derived from the method of measuring the speed of ships using lag. Lag was a triangular Board attached to it with a string and weight. He was thrown over the stern and count the number of nodes imposed on a string that went overboard in one minute.
5
Modern ships sail much faster than those that were used during the use of the rope lags. So, sport yacht manufacturing company Columbus are equipped with powerful diesel engines capable of accelerating the ship up to a speed of 22 knots - about 40 kilometers per hour. A well-known sports yachts "40" English athlete Nick Babb was able to reach speeds of 34 knots - about 60 kilometers per hour.
Note
In addition to Maritime transport, units used to Express speed in aviation. For example, the British aircraft speed measured in knots until 1965, and only later began to be measured in miles per hour.
Useful advice
Rope logs have long ceased to be used for measuring the speed of ships. Now for this purpose, use induction, hydrodynamic, gidroakusticheskikh and Doppler logs.

Previously, the length of the nautical mile was 1853.184 meters. To 1852 meters it equated only at the International hydrographic conference in Monaco in 1929.
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