You are plotting a running fix. The LOP to be run forward is an arc from a radar range, what technique should be used?

Correct Answer: Option D — The position of the object observed should be advanced to the new time and a new arc swung using the radius of the old arc.

When advancing a radar range arc for a running fix, Bowditch directs that the geographic position of the charted object itself should be advanced along the course line for the run time, and a new arc swung from that advanced position using the original radius.