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  2. Nautical chart - Wikipedia

    en.wikipedia.org/wiki/Nautical_chart

    Nautical charts are essential tools for marine navigation; many countries require vessels, especially commercial ships, to carry them. Nautical charting may take the form of charts printed on paper (raster navigational charts) or computerized electronic navigational charts. Recent technologies have made available paper charts which are printed ...

  3. Electronic navigational chart - Wikipedia

    en.wikipedia.org/wiki/Electronic_navigational_chart

    An Electronic Navigational Chart (ENC) is a digital representation of a real-world geographical area for the purpose of Marine navigation.Real-world objects and areas of navigational significance, or to a lesser degree - informational significance, are portrayed through Raster facsimiles of traditional paper charts; or more commonly through vector images, which are able to scale their relative ...

  4. Navigation system - Wikipedia

    en.wikipedia.org/wiki/Navigation_system

    A navigation system is a computing system that aids in navigation. Navigation systems may be entirely on board the vehicle or vessel that the system is controlling (for example, on the ship's bridge) or located elsewhere, making use of radio or other signal transmission to control the vehicle or vessel. In some cases, a combination of these ...

  5. Decca Navigator System - Wikipedia

    en.wikipedia.org/wiki/Decca_Navigator_System

    The Decca Navigator System was a hyperbolic radio navigation system that allowed ships and aircraft to determine their position by using radio signals from a dedicated system of static radio transmitters. The system used phase comparison between pairs of low frequency signals between 70 and 129 kHz, as opposed to pulse timing systems like Gee ...

  6. List of ship directions - Wikipedia

    en.wikipedia.org/wiki/List_of_ship_directions

    Fore or forward: at or toward the front of a ship or further ahead of a location (opposite of "aft") [1] Preposition form is "before", e.g. "the mainmast is before the mizzenmast". Inboard: attached inside the ship. [14] Keel: the bottom structure of a ship's hull. [15] Leeward: side or direction away from the wind (opposite of "windward"). [16]

  7. Logbook (nautical) - Wikipedia

    en.wikipedia.org/wiki/Logbook_(nautical)

    A logbook (a ship's logs or simply log) is a record of important events in the management, operation, and navigation of a ship. It is essential to traditional navigation, and must be filled in at least daily. The term originally referred to a book for recording readings from the chip log that was used to estimate a ship's speed through the ...

  8. VHF omnidirectional range - Wikipedia

    en.wikipedia.org/wiki/VHF_omnidirectional_range

    DVOR (Doppler VOR) ground station, collocated with DME. On-board VOR display with CDI MCT DVOR, Manchester Airport, United Kingdom.. Very High Frequency Omnidirectional Range Station (VOR) [1] is a type of short-range VHF radio navigation system for aircraft, enabling aircraft with a VOR receiver to determine the azimuth (also radial), referenced to magnetic north, between the aircraft to/from ...

  9. Bowditch's American Practical Navigator - Wikipedia

    en.wikipedia.org/wiki/Bowditch's_American...

    Navigational Safety, discusses aspects of the new distress and safety communications systems now in place or being implemented in the next several years, as well as navigation regulations, emergency navigation procedures, and distress communications. Part VII Oceanography, contains chapters on practical oceanography of use to the mariner. Part VIII