When using the doubling-the-angle technique to obtain a running fix from a single charted object, what does the distance run between the first and second bearing equal?

Question

Accepted Answer

C. The distance to the object at the time of the second bearing — Bowditch Ch. 7 §703 states that in the doubling-the-angle technique, the distance run between the two relative bearings equals the distance to the object at the second bearing, allowing the navigator to determine how far off the object is when abeam.

Answer

A. The distance to the object at the time of the first bearing

Answer

B. Half the distance to the object at the second bearing

Answer

D. The distance to the object at the midpoint between the two bearings

When using the doubling-the-angle technique to obtain a running fix from a single charted object, what does the distance run between the first and second bearing equal?

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