You are outbound in a channel marked by a range astern. The range line is 309°T. You are steering 127°T and have the range in sight as shown in illustration D047NG below. What action should you take?

Correct Answer: Option B — Come right to close the range then when on the range steer 129°T.

Per Bowditch navigation principles, when outbound with a range astern showing displacement, you must maneuver to regain the centerline before steadying on the reciprocal course of the range line (129°T) to ensure proper channel tracking.