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Converting Relative Bearing To True Bearing

You are on course 027° T and took a relative bearing of a lighthouse and found to be 220°. What is the True bearing of the lighthouse?

Given:
027° = True course
          220° = Relative bearing of the lighthouse

What is asked:
                True Bearing of the lighthouse

Analysis:
                Our course is 027° T. That means our reference is from the true north. And we have a 220° relative bearing of a lighthouse. Being relative, the bearing is measured from the ship's head. So in getting the true bearing, we have to add the relative bearing and the true course.

Converting Relative to True bearing

Solution:
This is the formula in getting true bearing.

True Bearing = True Course + Relative Bearing
                    = 027° + 220°
                    = 247° T is the true bearing of the lighthouse



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