Immediate Actions When You Are the Give-Way Vessel
If radar, AIS, or visual observation shows another yacht on a collision course while you are required to keep clear, act early and consistently. As the give-way vessel you must change course and/or speed to pass safely well clear of the other yacht. Make one clear maneuver in ample time, avoid last-minute corrections, and use sound signals and lights where required to communicate intent. Maintain a safe distance, reassess the situation continuously, and document actions in the yacht log for accountability and post-passage review.
Rules Governing Give-Way Obligations
COLREGs Basics and Right-of-Way Hierarchies
The International Regulations for Preventing Collisions at Sea (COLREGs) define who must keep clear and how vessels should maneuver. When rules assign the right-of-way to the other vessel, you are the give-way vessel and must act promptly. Priority scenarios include power-driven vessels meeting on port-to-port headings, overtaking situations, sail-on-power rules, and vessels constrained by draft. Understanding the hierarchy helps you avoid hesitation and reduces risk of misinterpretation on busy waterways.
Stand-On Responsibilities of the Other Yacht
The vessel with right of way (stand-on vessel) is expected to maintain course and speed to allow predictable relative motion. However, stand-on duties do not absolve you of timely action. If the give-way vessel fails to act appropriately, a stand-on vessel may take action to avoid collision, ideally at an early stage. Consistent behavior from both sides supports safe separation and predictable outcomes under COLREGs.
Practical Maneuvering and Positioning Tactics
When you must keep clear, prioritize course changes that are visible and decisive. For vessels underway, a starboard-to-starboard passing scenario is generally preferred. In crossing situations, if in doubt whether you are the give-way vessel, assume you are and act accordingly. Use your yacht’s maneuvering envelope to plan a path that provides adequate spacing and accounts for wind, current, and channel geometry.
- Port-to-port crossings: The vessel with the other on its starboard side must give way.
- Overtaking: The overtaking vessel must keep clear, regardless of relative aspect.
- Sail on power: Normally, power-driven vessels give way to sail under sail-power hierarchy.
- Constrained by draft: Vessels constrained by draft have specific rights; recognize their limitations and give ample room.
Communication Protocols and Sound Signals
Sound signals and radio communication clarify intent when visibility is good or when actions must be coordinated. Use short, clear VHF calls to announce maneuvers, especially in channels or narrow waters. Sound signals are required in conditions of restricted visibility to indicate your course and status. Consistent signaling reduces surprises and supports coordinated passing plans.
VHF, Channel 13/16, and Digital Protocols
Channel 16 is for distress, safety, and calling; switch to a working channel such as Channel 13 for passage planning once contact is established. On VHF, state your position, intended path, and request acknowledgment when appropriate. Digital channels and AIS require disciplined use; avoid voice clutter and rely on accurate static vessel data. In congested waters, combine radio calls with visual observations to ensure mutual understanding.
Horn, Whistle, and Bell Signals Under COLREGs
Power-driven vessels sound one prolonged blast to indicate underway and navigating, and specific combinations for turning or stopping. One prolonged followed by two short blasts indicates operating astern propulsion. Bells and gongs are used in low visibility to denote position and movement. Using sound signals appropriately reinforces your intentions when visibility degrades or when electronic systems are congested.
Risk Assessment and Situational Awareness
Continuously assess CPA (closest point of approach) and time-to-collision using visual bearings, radar plotting, or ECDIS inputs. Account for acceleration, deceleration, and wind effects on sail dynamics. Anticipate changes in traffic density, channel layout, and environmental conditions. Early recognition of deteriorating situations allows measured interventions rather than last-second corrections that increase risk.
Weather, Current, and Visibility Considerations
Wind shifts, tidal streams, and reduced visibility can alter safe passing distances and timing. Adjust speed and course earlier when environmental factors compress reaction windows. In narrow channels or constrained waters, plan larger margins and seek confirmations from bridge teams. Maintain redundancy in navigation information by cross-checking radar, AIS, and paper charts when feasible.
Documentation and After-Action Review
Log key events, sound signal usage, and bridge team communications during and after encounters with other vessels. Note time, position, actions taken, and outcomes to refine future decision-making. Review passages to identify patterns that support consistent compliance with COLREGs and internal safety protocols.
| Scenario | Your Role | Recommended Action | Sound Signal (if applicable) |
|---|---|---|---|
| Port-to-port head-on crossing | Give-way if other is on your starboard | Alter course to starboard, pass port-to-port | One short blast to indicate starboard turn |
| Overtaking on port side | Give-way (overtaker) | Pass with ample lateral separation; avoid cutting back early | One prolonged, two short blasts if overtaking to port |
| Sail on power crossing | Power usually gives way to sail | Take early action to avoid impeding sailboat | One short blast to signal intended maneuver if in doubt |
| Vessel constrained by draft | Give-way to constrained vessels where safe | Provide wide berth, avoid sudden speed changes | Context-dependent; use sound and radio to coordinate |
Summary and Enduring Principles
When another yacht approaches and you are required to yield, prioritize early, predictable maneuvers, clear signaling, and ample passing distance. Follow COLREGs hierarchy, maintain vigilant situational awareness, and adapt to environmental conditions. Document actions and debrief passages to build reliable habits. These principles support safe, repeatable outcomes in diverse sailing environments and remain relevant across seasons and vessel types.