You are inbound in a channel marked by a range. The range line is 309°T. You are steering 306°T and have the range in sight as shown in illustration D047NG below. The range continues to open. What action should you take?

Correct Answer: Option A — Alter course to the left until the range closes, then steer to the left of 306°T.

Per Bowditch, inbound with a range opening requires altering course toward the closed side to regain the trackline. Once the range comes back in line, adjust heading to compensate for set and drift while safely navigating.