🔍 Key Concepts

• Rule 19 – Restricted Visibility (Conduct of vessels not in sight of one another) • Actions required when you hear another vessel’s fog signal forward of the beam • Difference between stopping engines, taking all way off, and using radar as collision-avoidance tools

💭 Think About

• Ask yourself: In restricted visibility, when another vessel is heard forward of the beam and risk of collision may exist, what is the specific minimum action the Rules say you "shall" take? • Think about whether radar plotting is required by the Rule in all cases, or just a good practice if radar is available and competent use is possible. • Consider whether the Rules tell you to stop the engines immediately, or to adjust your speed so your ship is under control and can be stopped within an appropriate distance.

✅ Before You Answer

• Re‑read Rule 19(e) in the Navigation Rules and note the exact verbs used (such as "shall" and "shall, so far as possible, take all way off"). • Check if the Rule explicitly says you must stop engines, or if it speaks more broadly about reducing speed / taking all way off. • Confirm whether radar plotting is mandated by this particular Rule, or if it is an additional good seamanship practice not listed as a required action in the wording of the Rule.