🔍 Key Concepts
• Rule 6 – Safe Speed of the Navigation Rules
• How "safe speed" relates to stopping distance, not just visibility
• The role of prevailing circumstances and conditions (traffic, visibility, maneuverability, background lighting, etc.)
💭 Think About
• Ask yourself: Does the rule give a fixed fraction of visibility, or does it require judgment based on multiple factors?
• Think about what a watch officer actually considers on the bridge when deciding if speed is safe—what kinds of changing conditions matter?
• Which choice best reflects the flexible, situation‑based language typically used in the Navigation Rules for safe speed?
✅ Before You Answer
• Re‑read Rule 6 – Safe Speed in the Navigation Rules and focus on the exact wording about stopping distance.
• Check whether the Rule lists several factors (e.g., state of visibility, traffic density, maneuverability, background lights, wind/sea, draft vs. depth) and see which option matches that idea.
• Verify that the correct choice does not lock you into a single numeric distance or mechanical limitation, but instead ties speed to existing circumstances and conditions.