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  • AIS: Automatic Identification System, a navigation technology that uses VHF radio signals to automatically exchange information between vessels.
  • Bearing: The direction from one point to another, typically measured in degrees from true or magnetic north.
  • Bullet Point List All Navigation: Terminology and Related Definitions.
  • Chart: A map specifically designed for navigation, showing water depths, shoreline features, and navigational hazards.
  • Compass deviation: The difference between a vessel’s magnetic compass reading and the true heading due to the influence of nearby metal objects.
  • Compass error: The difference between a vessel’s magnetic compass reading and the true heading due to the deviation and variation.
  • Course: The direction a vehicle or vessel is intended to travel, typically measured in degrees from true or magnetic north.
  • CPA :Closest Point of Approach, the closest point two vessels will come to each other on their current course and speed.
  • CTS: Course to Steer, the course a vessel should steer to reach a specific destination.
  • Current: The horizontal movement of water caused by factors other than tides.
  • Dead Reckoning: A method of navigation that uses a previously determined position, speed and course to calculate a current position.
  • Dead reckoning: A navigation technique that uses a previously determined position, speed, and course to calculate a current position.
  • Deviation: The difference between a vessel’s magnetic compass reading and the true heading.
  • DOP: Dilution of Precision, a measure of the geometric quality of a GPS satellite configuration.
  • DR navigation: Dead Reckoning Navigation, a navigation technique that uses a previously determined position, speed and course to calculate a current position.
  • DR: Dead Reckoning, a navigation technique that uses a previously determined position, speed, and course to calculate a current position.
  • DRT: Dead Reckoning Time, the estimated time of arrival based on the dead reckoning navigation calculations.
  • DSC: Digital Selective Calling, a system that allows a VHF radio to automatically call a specific vessel or group of vessels using digital signals.
  • ECDIS: Electronic Chart Display and Information System, an electronic navigation system that uses digital charts.
  • Echo sounder: A device that uses sound waves to determine the depth of water beneath a vessel.
  • ETA: Estimated Time of Arrival, the projected time a vehicle or vessel will reach a specific destination.
  • ETE: Estimated Time Enroute, the projected time it will take a vehicle or vessel to reach a specific destination.
  • GNSS: Global Navigation Satellite System, a navigation system that uses satellites to determine a precise position on the Earth’s surface.
  • GPS: Global Positioning System, a satellite-based navigation system that can determine a precise position on the Earth’s surface.
  • Gyro compass: A navigation instrument that uses the rotation of the earth to indicate the direction of true north.
  • Heading: The direction a vehicle or vessel is currently pointed, typically measured in degrees from true or magnetic north.
  • I apologize, but there are no more terms that I can think of for this topic. The list I provided covers a wide range of navigation terminology and definitions, including various navigation systems, instruments, and techniques used for land and sea navigation. If there is any specific term that you have in mind, please let me know.
  • Inertial Navigation System (INS): A navigation system that uses accelerometers and gyroscopes to track a vehicle or vessel’s movement and calculate its position.
  • Leeway: The sideways movement of a vessel caused by wind and waves pushing against the hull.
  • Lidar: Light Detection and Ranging, a navigation technology that uses laser light to measure distance and create detailed 3D maps of the surrounding environment.
  • Log: A device that records the distance traveled by a vessel over a period of time.
  • LORAN: Long Range Navigation system, a navigation technology that uses low frequency radio signals to determine a position.
  • Magnetic compass: A navigation instrument that uses the earth’s magnetic field to indicate the direction of magnetic north.
  • Navigation Terminology Definitions
  • Navigational aid: Any device or system used to assist in navigation, such as a lighthouse, buoy, or radar.
  • NMEA: National Marine Electronics Association, a standard format for exchanging navigation data between electronic devices.
  • Pelorus: A navigation instrument that uses sighting lines to determine the bearing of a distant object.
  • Radar: Radio Detection and Ranging, a navigation instrument that uses radio waves to detect the presence and position of objects.
  • RDF: Radio Direction Finder, a navigation instrument that determines the direction of a radio transmitter.
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  • ROT: Rate of Turn, the rate at which a vessel is turning, typically measured in degrees per minute.
  • ROV: Remotely Operated Vehicle, a vehicle that is controlled remotely and used for underwater exploration and navigation.
  • Rudder angle: The angle of the rudder in relation to the centerline of the vessel, used to indicate the direction of turn.
  • Seaman’s Eye: A term used to describe the ability to accurately determine a vessel’s position and heading based on visual cues such as landmarks and wave patterns.
  • Set and drift: The direction and speed of the current and wind pushing a vessel off course.
  • Sextant: A navigation instrument that uses the angle between a celestial body and the horizon to determine a vessel’s position.
  • SONAR: SOund Navigation And Ranging, a navigation technology that uses sound waves to detect the presence and position of underwater objects.
  • Speed logs: A device that measures the speed of a vessel through the water.
  • Star sights: The process of using the position of celestial bodies to determine a vessel’s position.
  • TCPA: Time to Closest Point of Approach, the time until the two vessels reach the closest point of approach.
  • Tidal height: The vertical difference between the current water level and the predicted water level.
  • Tidal stream: The horizontal movement of water caused by tides.
  • TPC: Tidal Predictions for Coastal Waters, a chart that shows tidal information for a specific area.
  • Track: The actual path a vehicle or vessel has traveled, typically represented on a map or navigation display.
  • Variation: The difference between true north and magnetic north.
  • VHF: Very High Frequency, a type of radio frequency used for marine and aviation communication and navigation.
  • VLF: Very Low Frequency, a type of radio frequency used for long-range navigation and communication.
  • VMG: Velocity Made Good, the speed at which a vessel is making progress towards a destination, taking into account the effects of wind and currents.
  • VOR: VHF Omnidirectional Range, a navigation aid that uses VHF radio signals to determine a aircraft or vessel’s position and direction relative to a specific station.
  • VTS: Vessel Traffic Service, a system that uses radar, AIS, and other technology to monitor and control vessel traffic in a specific area.
  • Wayfinding: The process of planning, monitoring, and adjusting the course of a journey to reach a destination.
  • Waypoint: A specific location defined by a set of coordinates (latitude, longitude, and altitude) that a vehicle or vessel is directed to reach.
  • XTE: Cross-Track Error, the difference between a vessel’s actual track and the desired track to a destination.