The Log Correction. Determining the travelled distance:

The Log Correction: is the value, expressed as a percentage, which must be applied to the Log Distance to find out the True Distance travelled by ship. (more…)

The Log History:

This post, ‘The Log History’, has connection with the history of maritime navigation, and not with the modern navigation. But, are interesting. (more…)

The Log. General knowledge on travelled distance:

The Log: Navigation device on board of the ships used for measuring speed and distance travelled in a given time. (more…)

Determining the compass deviation in 36 courses:

Determining the compass deviation in 36 courses is not a separate method, it includes all navigation methods that have been described before. (more…)

Determining the compass deviation by comparing of courses:

The procedures for determining the compass deviation described up to here were based on the comparison of bearings. (more…)