Chip log meaning

A chip log is a method used to measure the speed of a ship by calculating the distance it travels over a certain period of time.


Chip log definitions

Word backwards pihc gol
Part of speech The part of speech of the word "chip log" is a compound noun. It refers to a device used to measure the speed of a ship in nautical miles per hour.
Syllabic division chip log = chip log
Plural The plural of chip log is chip logs.
Total letters 7
Vogais (2) i,o
Consonants (5) c,h,p,l,g

Chip log, also known as a "chip line" or "log-line," is a device used to estimate the speed of a ship in water. It consists of a weighted log attached to a line that is wound on a reel. The chip log is thrown overboard from the stern of the ship, and as the ship moves forward, the log remains stationary due to the drag created by the water. The line is marked at regular intervals, and the number of knots let out from the reel in a specific amount of time gives an estimate of the ship's speed.

History of Chip Log

The use of chip logs dates back to ancient times when sailors would throw a piece of wood overboard and measure the time it took to travel a certain distance. Over time, this simple method evolved into a more sophisticated device consisting of a log attached to a mechanical system for more accurate speed calculations.

How Chip Log Works

When the chip log is thrown overboard, it remains stationary while the ship moves forward. The log is designed to create resistance in the water, which allows the line to unwind from the reel. The speed of the ship is then calculated by the number of knots that pass through the sailor's hands in a specific amount of time. This measurement is used to estimate the ship's speed in nautical miles per hour or knots.

Accuracy and Usage

While chip logs were once the primary method of measuring a ship's speed, they have been largely replaced by GPS and other electronic navigation systems. However, chip logs are still used on some vessels as a backup in case of electronic failures or for historical or recreational purposes. The accuracy of a chip log can be affected by various factors such as sea conditions, wind, and currents, but it can still provide a rough estimation of the ship's speed.

In conclusion, chip logs have a long history in maritime navigation and have played a crucial role in determining a ship's speed at sea. While modern technology has largely replaced them, chip logs remain an important tool for some sailors and continue to hold a significant place in maritime tradition.


Chip log Examples

  1. The ship's speed was measured using a chip log.
  2. The sailor checked the chip log to track the vessel's progress.
  3. The captain instructed the crew to record the readings from the chip log.
  4. The chip log indicated that the ship was moving at a steady pace.
  5. The chip log data showed a decrease in speed due to unfavorable weather conditions.
  6. The crew member calibrated the chip log for accurate measurement.
  7. The ship's navigation system relied on information provided by the chip log.
  8. The chip log reported a slight deviation from the planned route.
  9. The sailor adjusted the chip log to account for strong currents.
  10. A new chip log was installed to replace the old, malfunctioning one.


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  • Updated 09/05/2024 - 22:50:25