Tag Archive | ship’s log

The History Of The Captain’s Log

Ships Log for the Frigate
The Grand Turk

Keeping Track Of Your Journey

A chip log, also called common log, or just the log, is a navigation tool used by mariners to estimate the speed of a vessel through water. The name of the unit knot, for nautical mile per hour, was derived from this method of measurement. This measurement is used to determine the distance a ship traveled within a certain amount of time. The readings of the log have been recorded in equal times to give the distance traveled with respect to a given start position.

A Ship’s Log, Captains Log or the Logbook was originally a book for recording significant events or readings from the chip log, and happenings on the ship itself.

Historically a ship’s log might list passengers and cargo as well as, position, weather and events of the ship and its crew. They might include repairs to the ship, issues with cargo, deaths, births and so on about the people on board the ship. Continue reading