
🧑💻 COLREGs Rule 5: ⚓
🛟The Proper Lookout –Your First Line of Defense🛟
🎯 Core Rule Summary
🕵️ Official Rule 5 requirement: Every vessel shall at all times maintain a proper look‑out by sight, hearing, and all available means, to make a full appraisal of the situation and risk of collision.
🛠️ Look‑out Means Listed & Explained
Item Function Key Notes
👁️ EYES / Visual Observation Primary source of lookout information Direct visual scanning remains the most reliable; electronic aids only support, never replace visual watchkeeping
📡 AIS Identifies nearby vessels, provides identity, position, course, speed, status Helps track traffic, but does not detect non‑AIS targets (small craft, fishing boats, navigation marks)
📟 RADAR Detects and displays targets, range/bearing, movement trends Essential for poor visibility, but has blind sectors, clutter, and resolution limits
🔭 BINOCULARS Improves identification of distant vessels, lights, shapes, and navigation marks Critical for verifying details visual scan alone cannot confirm
👂 EARS / Hearing Detects sound signals, fog signals, engine/propeller noise, or warnings Vital especially when visibility is reduced
⚙️ ALL OTHER MEANS Additional aids: searchlights, CCTV, echo sounders, VHF radio, communication systems Use as appropriate for vessel type, area, and conditions
🤝 TEAMWORK Continuous sharing of observations, reports, and updates between watchkeepers Key to avoiding missed information or misinterpretation
✅ Key Takeaway
No single method is enough: A proper lookout always combines human observation with all operational equipment, plus clear communication within the watch team. The poster’s closing line — “Good Lookout Today, Safe Voyage Always” — emphasizes this as the foundation of collision prevention.
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