Officer of the Watch, Lookout, Helmsman: Bridge Team Duties

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Published on Friday, 30 January 2026 07:39

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Officer of the Watch Responsibilities:
• Supervises and manages efficient watch running and safe navigation
• Maintains proper lookout at all times regardless of other personnel
• Checks ship's course regularly and compares gyro with magnetic compass
• Plots ship's position at regular intervals based on circumstances
• Uses all available means for traffic avoidance and safe passage
• Calls Master immediately in restricted visibility or emergency situations
• Maintains deck log book and supervises watertight integrity
• Manages bridge team and ensures proper manning levels

Lookout Duties:
► Maintains continuous watch for all navigation hazards
► Gives full uninterrupted attention to lookout duty only
► Reports all vessels regardless of size or position
► Reports navigation marks, floating objects and ice sightings
► Reports sandbanks, derelicts and navigational features
► Checks ship's lights function correctly at hourly intervals
► Remains at position until properly relieved with information transfer
► Uses sight, hearing and all available means for detection

Helmsman Functions:
• Steers vessel when not engaged on automatic pilot
• Arrives on duty early ensuring punctuality
• Repeats course out loud during changeover for bridge awareness
• Reports course to OOW who repeats in acknowledgement
• Advises relief on amount of helm vessel is carrying
• Repeats pilot orders word-for-word before executing movements
• Understands Master or OOW can countermand pilot orders anytime

Bridge Team Relationship:
► OOW is Master's representative responsible for safe navigation
► Helmsman should not be considered lookout except where specifically permitted by the Master and SMS and conditions allow.
► All bridge team members must be fit for duty before watch
► Electronic aids supplement but never replace proper lookout
► Bridge becomes operational centre processing all information and orders
► Team coordination prevents collisions through combined vigilance

THE OOW AS MASTER'S REPRESENTATIVE

The Officer of the Watch carries the weight of the Master's authority during every watch period, responsible for safe navigation in full compliance with international regulations. This position demands more than just standing on the bridge looking forward—it requires active management of every system, every crew member, and every decision affecting vessel safety throughout the watch.

Even when the Master stands on the bridge, the OOW's responsibility for safe navigation continues unless the Master explicitly assumes control and communicates this decision clearly to the entire bridge team. This distinction prevents dangerous confusion about who's actually commanding the vessel during critical situations.

Core OOW Responsibilities:
• Compliance with company navigational policies and requirements
• Effective watch handovers transferring all critical information
• Management of the bridge team ensuring proper coordination
• Maintaining proper lookout by all available means continuously
• Familiarity with bridge layout and all equipment operations
• Implementation of bridge procedures according to SMS
• Maintaining situational awareness of vessel and surroundings
• Overall monitoring and surveillance of ship activities
• Execution of passage plan following approved routes
• Navigation and control of vessel through all conditions
• Collision avoidance in strict compliance with COLREGS
• GMDSS watchkeeping for distress and safety communications
• Environmental requirements compliance preventing pollution
• Monitoring navigational equipment performance continuously
• Recording bridge activities in deck log book
• Management of emergency situations until relief arrives
• Security awareness particularly in piracy risk areas

✔ Tip: The OOW must comply with SMS requirements and Master's standing, daily and night orders. This compliance ensures the bridge team follows agreed procedures promoting safety and mitigating risks when carrying out passage plans.

❕ Important: The primary action of the Officer of the Watch is to maintain a continuous and effective lookout and not stand the vessel into danger. This fundamental duty overrides all other considerations during watchkeeping.

NAVIGATIONAL DUTIES AND POSITION MONITORING

Regular course checking and position plotting form the backbone of safe navigation, preventing the slow drift into danger that catches inattentive watchkeepers by surprise. The gyroscopic compass requires checking against the magnetic compass at least once per watch, and additionally on course alterations as required by circumstances to verify accuracy and detect failures before they lead the vessel off track.

Position plotting intervals vary dramatically depending on circumstances—coastal navigation might demand plots every 12 minutes while open ocean passages allow longer intervals. The key is matching your plotting frequency to the dangers present, not following rigid schedules that ignore reality.

Navigation Monitoring Requirements:
► Regular checking of ship's course throughout watch period
► Comparison of gyroscopic and magnetic compasses
► Obtaining compass error at least once per watch minimum
► Checking compass error on every course alteration
► Plotting ship's position at intervals matching risk level
► Increasing plot frequency when navigating coastal waters
► Using all available means to verify positional accuracy
► Making full use of sounding equipment checking depths

✔ Tip: Carry out radar plotting in good weather as well as foul conditions. This practice ensures you become proficient in correct plotting techniques before emergencies demand perfect execution under stress.

Traffic Avoidance Priorities:
• Traffic avoidance is of prime importance in safe navigation
• Use all available means at your disposal for safe passage
• Don't hesitate using whistle for sound signals when required
• Adjust engines immediately if collision risk develops
• Use radar continuously for target detection and tracking
• Call additional manpower when situations become complex
• Place vessel on manual steering if better control needed
• Use anything considered necessary for vessel safety

❕ Important: The Officer of the Watch should be aware of the ship's capabilities regarding turning circles and emergency stop distances. This knowledge enables accurate judgment of when action becomes necessary to avoid collisions or groundings.

CALLING THE MASTER: WHEN AND WHY

Knowing when to call the Master separates confident officers from those who either delay too long or cry wolf unnecessarily. The situations requiring Master notification are clearly defined, but the underlying principle remains simple—call immediately whenever doubt exists about the safety of the ship or how to handle developing situations.

The requirement to call the Master never relieves the OOW of taking immediate action necessary for vessel safety. Don't wait for the Master to arrive before altering course to avoid collision or reducing speed in fog—act first, then explain your actions when the Master reaches the bridge.

Mandatory Master Notification Situations:
• If restricted visibility is encountered or suspected
• If traffic conditions or movements of other vessels cause concern
• If difficulty is experienced in maintaining course
• On failure to sight land or navigation mark by expected time
• On failure to obtain soundings by expected time
• If land or navigation mark is sighted unexpectedly
• If change of soundings occurs unexpectedly
• On breakdown of engines or steering gear
• On breakdown of any essential navigational equipment
• In heavy weather if doubt exists about weather damage possibility
• In any other emergency or situation involving doubt

✔ Tip: The Master should be kept informed by the Officer of the Watch of all movements and events affecting the vessel's progress, even when situations don't require immediate Master presence on the bridge.

❕ Important: The presence of the Master on the bridge does not relieve the OOW of their responsibility for the watch, unless the Master has explicitly taken control. Any handover of responsibility must be fully understood and communicated to all bridge team members.

OOW Actions When Master Arrives:
► Continue managing bridge team unless instructed otherwise
► Remain on bridge supporting Master's decisions
► Maintain situational awareness of developing situations
► Execute Master's orders promptly and accurately
► Verify understanding of any responsibility transfer
► Never assume Master has taken over without explicit statement

✔ Tip: If there is any doubt about the safety of the ship or whenever uncertainty exists, call the Master immediately. This simple rule prevents hesitation that allows dangerous situations to develop beyond control.

EFFECTIVE WATCH HANDOVER PROCEDURES

Watch handovers represent the most vulnerable moments in continuous navigation, when information gaps between tired off-going officers and fresh relieving officers can create dangerous knowledge voids. An effective handover ensures all critical information transfers between bridge team members, preventing situations where the new watch doesn't know about developing hazards or ongoing situations.

The relieving OOW must be fit for duty and, during hours of darkness, have enough time for night vision adjustment before taking over the watch. Handing the bridge to someone whose eyes haven't adapted to darkness creates immediate collision risks the moment they take responsibility.

Pre-Handover OOW Verification:
• Relieving OOW is fit for duty before taking over
• During darkness, adequate night vision adjustment time allowed
• Relieving officer has checked ship's position and status
• Relief is mentally alert and physically capable of duties
• Relief has reviewed Master's night orders if applicable
• Relief understands current situation before assuming control

✔ Tip: The watch handover should be deferred until after completion of any action that is imminent, or that starts before the watch has been handed over. Never transfer the bridge during course alterations or when close-quarters situations are developing.

Additional Handover Discussion Points:
► Shallow water effects including squat possibilities
► Work ongoing around ship affecting navigation
► Crew working on deck creating visibility restrictions
► Engine room maintenance limiting manoeuvrability
► Cargo, ballasting or tank cleaning operations
► Safety precautions for operations including active permits
► Special instructions particularly amendments to bridge orders
► Vessel reporting requirements completed or due
► Maritime safety information received affecting passage

MANAGING THE BRIDGE TEAM EFFECTIVELY

The OOW commands the bridge team until properly relieved, with responsibility extending to ensuring bridge watch manning levels always remain safe for existing circumstances and conditions. An OOW must always be on watch on the bridge at sea or at anchor—this isn't negotiable regardless of workload or other duties demanding attention.

All bridge team members including lookouts and helmsmen must be fit for duty before taking their positions. Placing fatigued crew members on watch creates accidents waiting to happen, particularly during darkness or restricted visibility when alertness becomes critical for collision avoidance.

Bridge Team Management Duties:
• Ensuring adequate manning levels for current conditions
• Verifying all team members are fit for duty
• Assigning specific duties to team members clearly
• Coordinating team actions during complex situations
• Maintaining team communication throughout watch
• Preventing workload from overwhelming team capabilities
• Calling additional personnel when situations demand
• Managing team fatigue through proper relief scheduling

✔ Tip: The OOW is in charge of the bridge team in compliance with SMS and Master's standing orders. This authority includes refusing to take over the watch if manning levels are inadequate for safe navigation under current conditions.

MAINTAINING PROPER LOOKOUT: THE FOUNDATION

Maintaining an effective lookout is essential to safe navigation, requiring the OOW to ensure proper lookout by sight and hearing, as well as by all other available means, is always maintained. No other activity or duties should interfere with this fundamental requirement—when priorities conflict, lookout wins every time.

The helmsman while steering should not be considered the lookout, except on small ships with unobstructed all-round view from the steering position. Assuming the person at the wheel can simultaneously steer accurately and maintain effective lookout has caused collisions when that assumption proved wrong.

Lookout Appraisal Requirements:
► Make full appraisal of collision risk with other vessels
► Identify navigational hazards including wrecks and floating objects
► Identify ice and uncharted hazards before vessel closes them
► Determine risk of grounding or stranding from position
► Detect and respond to weather, visibility or seastate changes
► Identify aids to navigation including buoys and lights
► Respond to persons, ships or aircraft in distress
► Identify security threats especially in piracy risk areas

❕ Important: On ships with fully enclosed bridges, sound reception equipment should be continuously in operation and correctly adjusted. The SMS, Master's standing orders and onboard procedures should address maintaining situational awareness when bridge design isolates the team from outside environment.

COLREGS Rule 5 Requirements:
• Every vessel shall at all times maintain proper lookout
• Lookout by sight and hearing as well as all available means
• Means appropriate in prevailing circumstances and conditions
• Purpose is making full appraisal of the situation
• Purpose is assessing risk of collision accurately
• Rule 2 states nothing exonerates from neglect consequences

✔ Tip: Electronic navigation aids including ECDIS, radar, ARPA and AIS are not substitutes for maintaining proper lookout. The aids and the lookout should be used in combination to achieve full appraisal of the situation.

LOOKOUT DUTIES AND REPORTING PROCEDURES

The principal duty of the lookout is maintaining continuous watch for all hazards that may impair safe navigation of the vessel. This duty demands full, uninterrupted attention—lookouts who split their focus between watching and other tasks fail at the fundamental requirement of their position.

The lookout reports everything to the Officer of the Watch, regardless of whether it seems important or trivial. That distant light might be a vessel on collision course, or the floating object could be a container hazard—the lookout reports, the OOW decides significance.

Mandatory Lookout Reports to OOW:
• All ships irrespective of size or position relative to own vessel
• All navigation marks or lights regardless of expected position
• All floating objects including debris and containers
• Any sightings of ice no matter what form it takes
• Sandbanks or prominent navigational features
• Derelicts and any other hazard dangerous to navigation
• Malfunction of ship's lights discovered during checks
• Correct functioning of lights verified at hourly intervals

❕ Important: The lookout is obliged to remain at his or her position until correctly relieved of duties. On being relieved, the relief should be given any relevant information concerning items reported during the watch.

Bearing Reporting Methods:
► Right ahead (dead ahead on centerline)
► Fine on the port bow (1-2 points from ahead)
► Broad on the starboard bow (3-4 points from ahead)
► Port beam or starboard beam (directly abeam)
► Broad on the port quarter (3-4 points from astern)
► Fine on the starboard quarter (1-2 points from astern)
► Dead astern (directly behind on centerline)
► Using compass points where 1 point equals 11.25 degrees

✔ Tip: The lookout has a very responsible job and duties must never be taken lightly. COLREGS Rule 2 states nothing shall exonerate vessel, owner, Master or crew from consequences of any neglect to comply with rules or neglect of precautions required by ordinary practice of seamen.

AVAILABLE MEANS FOR LOOKOUT IN MODERN NAVIGATION

The significant expressions in COLREGS Rule 5 are "all available means appropriate" and "prevailing circumstances and conditions." When this rule was written in 1972, detection methods included sight, hearing and radar. Today's bridge teams have expanded capabilities that dramatically improve lookout effectiveness when used properly.

Over time, developments improved lookout capabilities beyond original regulation writers' imagination. Modern vessels employ multiple detection systems working together to confirm target presence and prevent dangerous assumptions about other vessels' courses and speeds.

Modern Lookout Means Available:
• Visual lookout using eyesight for direct observation
• Aural lookout using hearing for sound signals
• Radar for electronic target detection and tracking
• VHF radio for vessel communications and VTS information
• AIS for automatic identification and tracking
• Echo sounder showing depth changes indicating stranding risk

❕ Important: Each lookout system has advantages and disadvantages, so OOWs should be aware of limitations of each method. Today it is possible to have multiple means of detecting and confirming vessel presence, helping prevent making dangerous assumptions.

Historical Lookout Evolution:
► 1972: Original COLREGS relied on sight, hearing and radar
► In fog, bridge teams depended on fog signals and radar
► Radar sometimes couldn't detect small vessels creating risks
► Fog signal range limited to approximately 2 miles maximum
► Visual means considered best way to confirm vessel presence
► ARPA later improved target acquisition and tracking
► AIS introduction provided automatic identification capabilities
► Modern practice uses radar as primary means in all weather

✔ Tip: It is normal today to use radar as the primary means of lookout in all weathers and confirm target presence by all other means available, which may be visual or AIS depending on range and conditions.

VHF Listening Watch Functions:
• Receipt of information broadcasts from VTS stations
• Information on vessels restricted in ability to manoeuvre
• Information on vessels constrained by their draught
• Information on ships not under command
• Information on fishing vessel concentrations
• Messages transmitted by vessels themselves
• Safety information that must not be ignored

❕ Important: Beware of vessels displaying incorrect AIS data, including incorrect static or dynamic data from faulty sensors. Some ships may even display incorrect navigation lights or shapes—these ships are in contravention of COLREGS but still pose collision risks.

NIGHT VISION CONTROL AND MANAGEMENT

During hours of darkness, the bridge team must have adequate night vision to maintain proper lookout, and the environment should support this requirement. Shipboard procedures should allow oncoming watchkeepers' vision to adjust to ambient light conditions before taking over the watch—rushing this adjustment creates dangerous blind spots in collision detection.

Lighting used on the bridge and adjacent areas should be of low intensity and coloured red. Light from bridge equipment can impair night vision and should be controlled using appropriate display settings that balance readability against vision preservation.

Night Vision Preservation Measures:
• Low intensity red lighting on bridge and adjacent areas
• Controlling bridge equipment display brightness appropriately
• Using blackout curtains controlling light when otherwise impossible
• Carefully considering deck lighting use during darkness
• Avoiding deck lights affecting even restricted horizon sectors
• Closing externally facing accommodation window curtains
• Closing deadlights on all external accommodation windows
• Keeping all accommodation external doors closed during darkness

✔ Tip: Even momentary exposure to bright light can temporarily destroy night vision, and during the subsequent readjustment period, the ability to maintain effective lookout will be impaired significantly.

❕ Important: Consideration should be given to fitting cut-out switches to doors leading into the bridge so that adjacent light sources are temporarily switched off when doors are opened, preventing bright light from destroying watchkeepers' night vision.

SOLE LOOKOUT CIRCUMSTANCES AND LIMITATIONS

Under the STCW Code, the OOW may, in certain circumstances when the Master has decided it is safe to do so, be the sole lookout in daylight. This decision requires careful consideration of multiple factors affecting both the OOW's capability and the navigational environment creating workload demands.

The Master's decision to allow sole lookout operation involves assessing weather, visibility, traffic density, proximity of dangers, TSS navigation requirements, and defects affecting navigation, propulsion or steering. Each factor contributes to overall risk, and the combination determines whether sole lookout is safe or dangerous.

Factors Master Considers for Sole Lookout:
► Weather conditions affecting visibility and vessel handling
► Visibility range for detecting targets visually
► Traffic density creating collision avoidance workload
► Proximity of dangers to navigation requiring attention
► Attention needed navigating in or near traffic separation schemes
► Defects affecting aids to navigation reducing capabilities
► Defects affecting propulsion limiting manoeuvrability
► Defects affecting steering requiring increased attention

Master's Additional Verification Requirements:
• OOW is fit for duty before sole lookout responsibility
• OOW ability to safely navigate isn't compromised by workload volume
• OOW knows who provides backup assistance
• OOW knows what circumstances require calling backup
• OOW knows how to call backup assistance quickly
• Backup personnel aware of required response times
• Backup personnel aware of movement limitations
• Backup personnel can hear and respond to bridge alarms
• Backup personnel can hear and respond to communication calls

❕ Important: The OOW should not be the sole lookout during hours of darkness. Night conditions demand dedicated lookout personnel because the OOW's attention divides between navigation, equipment monitoring and collision avoidance assessments.

BNWAS OPERATION AND MANAGEMENT

The Bridge Navigational Watch Alarm System should be in operation whenever the ship is at sea, including when the ship's heading or track control system is in use. The OOW must ensure BNWAS is operational and set correctly, in line with SMS and Master's standing orders, preventing incapacitation from going undetected.

BNWAS operation should be part of the departure checklist, and a key, if supplied, should be kept with the Master when switched on. This prevents unauthorized deactivation that could allow an unconscious or incapacitated OOW to remain undetected while the vessel continues on autopilot into danger.

✔ Tip: The BNWAS continuously monitors for watchkeeper activity, requiring periodic reset actions proving the OOW remains conscious and alert. Failure to reset triggers escalating alarms designed to rouse the watchkeeper or summon assistance.

HELMSMAN DUTIES AND STEERING PROCEDURES

The function of the helmsman is steering the vessel when it's not engaged on automatic pilot. On large passenger vessels, the steering duty is normally carried out by the quartermaster, and both terms are in common use across all vessel types. The duty can be tedious and tiring, so regular reliefs are employed to maintain efficiency since responsibility for safe passage lies in the hands of the person steering.

A helmsman taking the wheel should come on duty earlier rather than later—punctuality is always expected in this critical position. At changeover, the course being steered should always be repeated out loud from one person to another, allowing all bridge personnel to be aware of the course being steered and preventing steering errors from miscommunication.

Helmsman Changeover Procedures:
• Arrive on duty early ensuring punctuality
• Course being steered repeated out loud during changeover
• All personnel on bridge hear course confirmation
• Once wheel relieved, finishing helmsman reports course to OOW
• OOW repeats course in acknowledgement confirming receipt
• Relief advised on amount of helm vessel is carrying
• Information enables relief to avoid excessive helm movement
• Enables relief to keep steady course from start

✔ Tip: It is common practice when handing over the wheel to advise on the amount of helm the vessel is carrying to maintain course reasonably steadily. This information helps the relief avoid excessive helm movement while keeping a steady course.

Historical Helmsman Customs:
► Removing knife and spike before taking wheel
► Removing metal objects that might affect magnetic compass
► Removing lanyards or loose-fitting clothing
► Preventing clothing from catching wheel spokes when turning
► Customs largely dropped with advent of gyro compass
► Reflector units eliminated need for proximity to magnetic compass

❕ Important: Before sailing, the steering gear should be tested under supervision of the Duty Officer by putting helm hard over to both port and starboard and holding pressure in both positions so rudder indicator shows extent of movement in response to helm.

PILOT WHEELS AND ORDER REPETITION

When a vessel is navigating in coastal waters, a pilot is often employed and manual steering is used. The helmsman should take the pilot's order word-for-word back to the pilot before executing the movement, ensuring complete understanding and preventing steering errors from miscommunication during critical pilotage operations.

The helmsman at the wheel should bear in mind that the pilot is an advisor to the Master and his representative, the Officer of the Watch. At any time the Master or OOW may countermand the pilot's orders, and the helmsman must respond to whoever holds ultimate command authority.

Pilot Order Execution Protocol:
• Listen carefully to pilot's exact steering order
• Repeat order word-for-word back to pilot
• Wait for pilot acknowledgement before executing
• Execute movement smoothly and accurately
• Report when rudder reaches ordered position
• Maintain ordered rudder angle until told otherwise
• Understand Master or OOW can override pilot anytime

✔ Tip: The repetition of orders prevents misunderstandings that could put the vessel aground during close-quarters maneuvering in restricted waters where steering errors have immediate consequences.

BRIDGE OPERATIONAL CENTRE CONCEPT

Experience has shown that the bridge becomes the operational centre for the watch period, with all relevant information and orders processed through it. The deck log book is maintained on the bridge by the Officer of the Watch, together with continual observation and supervision of multiple vessel systems and operations.

Continuous Bridge Supervision Items:
► Watertight integrity of hull including door operations
► Opening and closing of watertight doors monitoring
► Fire watch with continual smoke detector system observation
► Special cargo surveillance as and when required
► Correct display of all navigation lights and shapes
► Weather conditions affecting ship and its course
► Routine working of deck including rigging pilot ladders
► Deployment of logs and navigational equipment
► Organizing boat and fire drills according to schedule
► All emergencies affecting vessel safety

SITUATIONAL AWARENESS DEVELOPMENT

Situational awareness means appreciating what is happening around the ship, including knowing where the ship is, where it is planned to be, and whether any other vessel, event or conditions developing nearby could pose risks to ship safety. This awareness separates competent watchkeepers from those who react to crises rather than preventing them.

Situational awareness depends on the bridge team's ability to use information effectively to assess situations accurately, the team's experience level, and the absence of distractions preventing focus on critical navigation tasks.

Situational Awareness Dependencies:
• Bridge team's ability using information effectively
• Accurate situation assessment from available data
• Bridge team's experience level and training
• Absence of distractions interfering with duties
• Good situational awareness essential for safe navigation
• Good situational awareness essential for environment protection

✔ Tip: The OOW should develop and maintain situational awareness of the area around the ship, ship's activities, and possible impact of external influences on ship safety. This includes awareness of requirements to protect marine wildlife and environmentally sensitive sea areas.

Situational Awareness Enhancement Methods:
► Clear understanding of the passage plan
► Effectively managed bridge team coordination
► Proper and continuous lookout by all available means
► Familiarity with and understanding of bridge equipment
► Understanding information available from radar, AIS, ARPA and ECDIS
► Using lookouts, ECDIS, radar and visual monitoring techniques
► Confirming navigational safety of the ship continuously
► Continuous monitoring of ship's position and proximity to hazards
► Using all means available for position verification
► Using lookouts, radar and ARPA to monitor traffic
► Cross-checking information from different sources

❕ Important: Care should be taken to ensure that information available on electronic navigation equipment remains uncluttered and is relevant to the current situation. Over-reliance on individual electronic systems for developing and maintaining situational awareness should be avoided.

BRIDGE EQUIPMENT FAMILIARITY REQUIREMENTS

The OOW should know the bridge layout and be familiar with the operation of all bridge equipment so that the ship can be safely navigated. This familiarity extends beyond basic operation to understanding status, capabilities and limitations of all systems and their effective operation under normal and emergency conditions.

Equipment Familiarity Requirements:
• Understanding status, capabilities and limitations of all bridge equipment
• Understanding effective operation of all navigation systems
• Recognizing and understanding how to respond to alarms
• Understanding how to respond correctly to warnings
• Understanding status of ship's engines and machinery
• Understanding appropriate machinery restrictions or limitations
• Understanding any restrictions on manoeuvrability

DECK LOG BOOK MAINTENANCE

The deck log book maintained on the bridge by the Officer of the Watch provides the official record of all events, observations and actions taken during the watch period. This document serves legal purposes in accident investigations, insurance claims and regulatory compliance verification, making accuracy and completeness critical.

Log Book Recording Requirements:
► All course alterations with times and reasons
► All speed changes with times and justifications
► Position fixes with times and methods used
► Weather observations at regular intervals
► Sea state and visibility conditions
► All vessels sighted with bearings and actions taken
► All navigation marks or lights observed
► Compass error checks and results
► Equipment failures or malfunctions
► Master notifications and reasons
► Unusual events or circumstances
► All emergency situations and responses

✔ Tip: Log entries should be made in real-time or immediately after events occur, not reconstructed from memory at the end of the watch when details fade and accuracy suffers.

FAQ

❔ Can the OOW delegate lookout duty to the helmsman?
No. The helmsman while steering should not be considered the lookout, except on small ships with an unobstructed all-round view from the steering position. The OOW must maintain proper lookout regardless of other personnel engaged on similar duty, and a dedicated lookout is required in most situations.

❔ What happens if the Master is on the bridge but hasn't taken over?
The presence of the Master on the bridge does not relieve the OOW of their responsibility for safe navigation unless the Master has explicitly taken control. Any handover of responsibility must be fully understood and communicated to all bridge team members to prevent dangerous confusion about command authority.

❔ When can the OOW be the sole lookout?
Under STCW Code, the OOW may be the sole lookout in daylight when the Master has decided it is safe based on factors including weather, visibility, traffic density, proximity of dangers, TSS navigation requirements, and equipment defects. The OOW should never be the sole lookout during hours of darkness.

❔ Why must the helmsman repeat pilot orders?
Repeating pilot orders word-for-word before execution ensures complete understanding and prevents steering errors from miscommunication during critical pilotage operations. The helmsman should remember that the pilot is an advisor, and the Master or OOW can countermand pilot orders at any time.

❔ How often should the gyro compass be checked?
The gyroscopic compass should be checked by obtaining the compass error at least once per watch or on every alteration of the vessel's course. This verification against the magnetic compass detects failures before they lead the vessel off track into danger.

❔ What should a lookout do if uncertain about a sighting?
Report it immediately to the Officer of the Watch. The lookout reports everything regardless of whether it seems important or trivial—the OOW decides significance. That distant uncertain light might be a vessel on collision course requiring immediate action.

❔ Can the OOW delay calling the Master if taking corrective action?
No. The requirement to call the Master in specified situations does not relieve the officer of taking immediate action necessary for vessel safety. Act first to ensure safety, then call the Master to inform them of the situation and actions taken.

❔ Why is night vision adjustment so critical before watch takeover?
Handing the bridge to someone whose eyes haven't adapted to darkness creates immediate collision risks the moment they take responsibility. Even momentary exposure to bright light can temporarily destroy night vision, and during readjustment, the ability to maintain effective lookout is impaired.

GOOD TO KNOW

✔ Bridge Arrival Timing: Arrive on the bridge at least 10 minutes before your watch begins. This allows time for eyes to adjust to light conditions, review Master's night orders, and conduct a proper handover without rushing through critical information exchange.

✔ Course Repetition Clarity: When repeating courses during handover, use three-digit format (zero-nine-zero instead of ninety) to prevent confusion between similar-sounding numbers that could put the vessel on wrong headings.

✔ Position Plot Verification: Always plot positions using at least two different methods when possible. Cross-checking GPS positions with visual bearings or radar ranges prevents following electronic systems into danger when failures occur.

✔ Traffic Patterns Recognition: Learn to recognize traffic flow patterns in areas you frequently transit. Understanding where vessels typically appear helps you detect unusual situations requiring increased attention before they develop into emergencies.

✔ Equipment Alarm Familiarity: Memorize the sounds of different alarm signals during quiet watches. When multiple alarms sound simultaneously during emergencies, instant recognition speeds appropriate responses before consulting alarm panels.

✔ Master Communication Quality: When calling the Master, provide concise situation summaries including what you've already done, what's developing, and what concerns you. This allows the Master to assess urgency and prepare mentally before arriving on the bridge.

✔ Lookout Position Selection: Position lookouts where they have maximum visibility and minimum distractions. Bridge wing positions often provide better all-round visibility than inside the wheelhouse, particularly during darkness or restricted visibility.

✔ Helm Response Knowledge: Learn your vessel's helm response characteristics in different loading conditions. This knowledge helps you judge how much rudder the helmsman should use maintaining course without excessive wheel movement.

✔ Watch Fatigue Recognition: Monitor yourself and team members for fatigue signs including reduced alertness, slower reactions, or decreased attention span. Call relief early when fatigue compromises safety rather than toughing it out until scheduled watch end.

✔ Electronic Systems Backup: Always maintain non-electronic backup skills for navigation and collision avoidance. Over-reliance on ECDIS, radar and AIS creates dangerous dependencies that fail catastrophically when systems malfunction during critical situations.

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