Bearing lines are then plotted on a chart through the locations of the sighted items.
2.
The lights were originally lit in 1897 and are apart, aligned on a 330?bearing line to guide boats safely into the Porte des Morts Passage.
3.
The bearing lining is undercut on the horizontal centerline ( the rebore ) so that oil entering the bearing is drawn in by the rotation and eccentricity of the journal.
4.
These are normally of the form of left / right of the bearing line and distance along it, for example " right 50 add 100 " ( distance in meters ).
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