In today’s time, advanced mechanisms like GPS or digitised systems using high-end satellite data help in navigation and keep the vessel communicable from literally everywhere. The compass is still present in almost all vessels as a standby and still upholds its importance, reports Marine Insight.
Simple aspects
Now, reiterating the simple aspects, the magnet or associated devices as the magnetometer works on the basic principle of geomagnetism, showing the directions based on the earth’s inherent magnetic field.
Thus, when the compass needle points somewhat towards the north, your vessel is headed towards the northern direction.
Now, while analysing compasses, some form of reference is crucial in determining the direction with respect to the vessel’s heading. For this reason, the use of lubber lines comes into the picture.
Reference for navigation
Lubber lines essentially act as a reference for navigation and give the resultant angle of the vessel’s course of heading and any given direction.
There may also be other additional lubber lines at intervals of 45 degrees from the main one in many cases. In modern devices like GPS or radar navigation charts, the lubber line is often displayed digitally on the console or screen.
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Source: Marine Insight
