Emergency Preparedness & Safety Quiz

If flooding is slowing under active management, the boat remains the better survival platform. Continue damage control. Activate the EPIRB and call MAYDAY to alert rescue services while you work — but abandon only if the boat becomes clearly unsaveable.

Hypothermia is the primary cause of death in cold-water and survival raft situations, even in mild weather. A thermal protective aid or space blanket/survival bag retains body heat and significantly extends survival time.

SOLAS flares expire 42 months (3.5 years) after manufacture. January 2021 + 42 months = July 2024. These flares expired almost a year ago and are not legally compliant. Keep them as backup but replace with in-date flares.

Cut the painter only when all crew are aboard. The painter keeps the raft alongside so crew can board safely. Cut it too soon and the raft may drift away before everyone is aboard. After cutting, deploy the sea anchor immediately.

A managed flooding situation does not warrant abandonment. Continue damage control while calling MAYDAY and activating the EPIRB to alert rescue services. Abandon only when the flooding becomes clearly unmanageable.

The painter serves two purposes: it triggers the CO2 inflation when pulled, and it keeps the inflated raft alongside the vessel so crew can board. A raft launched without a secured painter may drift away uninflated or inflate and drift before crew can board.

The grab bag VHF must be fully charged before every offshore passage. 20% charge could be exhausted in under an hour of use. A handheld VHF is often the only means of communication after abandoning ship — it must have maximum charge.

Hypothermia kills more survivors in life rafts than any other cause — even in mild temperatures with wet clothing. The TPA (a metallic foil survival bag) retains body heat and dramatically extends survival time. Every crew member should have one.

The EPIRB should be activated early — after calling MAYDAY and while preparing to abandon. This ensures SAR services receive the alert as soon as possible. Waiting until aboard the raft delays the alert unnecessarily, and the EPIRB may be lost if the vessel sinks quickly.

Swage fittings (pressed terminals on wire stays), chainplates (hull/deck attachments), and the connection hardware between them are the most common failure points. These are subject to corrosion, fatigue, and crevice moisture that degrade them over time.

The broken mast and rigging trailing alongside the hull act as a battering ram in waves. A spreader tip or mast butt driven into the hull can puncture fibreglass in minutes. Preventing hull damage is the immediate priority after confirming crew safety.

The boom is the most practical jury mast on most boats. It's designed to handle sail loads, it has fittings for attaching a sail, and it's usually the strongest spare spar available after a dismasting.

Wire standing rigging should be replaced every 10–12 years regardless of external appearance. Internal corrosion — invisible from outside — weakens the wire inside swage fittings and along the lay of the strands. By 12 years, the risk of failure increases significantly.

The broken mast and rigging trailing alongside the hull are driven against the topsides by every wave. A spreader tip or mast butt can punch through a fibreglass hull in minutes. Preventing hull damage is the critical priority after crew safety.

Bolt cutters are the primary tool — they cut wire and rod rigging quickly, don't require electrical power, and can be used in wet, pitching conditions. A hacksaw is the backup. Every offshore boat should carry bolt cutters sized for the heaviest rigging wire aboard.

Rust staining (brown discoloration) at the base of a stainless steel swage fitting means moisture has entered the wire-to-fitting joint and is corroding the wire internally. This is the most reliable visible warning of impending swage failure.

The boom is typically the best jury mast candidate. It's designed to handle sail loads, has built-in fittings for sail attachment, and is usually the strongest spare spar available. A spinnaker pole can supplement or substitute if the boom is damaged.

The industry standard is 10–12 years for wire standing rigging. Internal corrosion — where moisture enters the lay of the wire or the interior of swage fittings — is invisible from external inspection. By 12 years, the risk of failure under load increases significantly.

The Swiss cheese model shows that accidents typically involve multiple small failures — each individually survivable — that happen to line up simultaneously. Good preparation adds layers of defence that prevent the alignment.

If a distress signal is received, searchers can immediately cross-reference the MMSI or EPIRB ID with your float plan to confirm it's your vessel and identify the crew, vessel description, and last known route — dramatically speeding up the response.

The HRU (Hydrostatic Release Unit) is designed to automatically release the EPIRB from its cradle if the vessel sinks. An expired HRU may not function correctly, meaning the EPIRB could go down with the boat instead of floating free. Replace it before departure.

The spotter's sole task is to maintain visual contact with the MOB at all times. Once you lose sight of a person in the water, finding them again can be nearly impossible, especially in a seaway. The spotter watches — nothing else.

The Swiss cheese model demonstrates that serious accidents are rarely caused by one failure. Instead, they result from multiple small failures aligning at once. Good preparation adds layers of defence that prevent this alignment.

Emergency roles must be assigned and understood before departure. During an actual emergency, there is no time for role assignment — everyone needs to act immediately in a co-ordinated way.

A float plan is only useful if it gives rescuers enough detail to act quickly. MMSI and EPIRB numbers allow immediate correlation with any distress signal. The trigger time tells your shore contact exactly when to call the Coast Guard.

A crotch strap keeps an inflated life jacket positioned correctly on an unconscious person. Without it, the jacket can ride up over the face, compromising the victim's airway. The life jacket should not be used until the strap is replaced.

The spotter's only job is to keep their eyes on the MOB continuously. Once visual contact is lost in a seaway, recovery becomes extremely difficult. All other tasks are handled by other crew. The spotter watches — period.

A helm that moves freely but produces no steering response indicates the linkage (cable or hydraulic) has failed. The rudder is probably still intact and the stock undamaged. An emergency tiller fitted directly to the rudder stock will restore steering.

Sail area forward of the mast (headsail) pushes the bow away from the wind, causing a bear-away. Reducing the main eliminates the aft sail force that pulls the bow toward the wind. Together, these adjustments allow sail-trim steering on a reaching or running course.

Cable failure with an intact rudder is a manageable equipment failure — not immediately a distress emergency. Heave-to to stabilise the boat and give yourself time to work calmly. Fit the emergency tiller to the rudder stock and resume steering. Call for assistance if you cannot manage independently.

In warp steering, the boat turns away from the side with more drag. To turn to port (bow left), lengthen the starboard warp — the increased drag on the starboard quarter pushes the stern to starboard, and the bow turns to port.

A fractured rudder stock can open a path for water to enter the hull through the bearing. Check below decks immediately for flooding. This turns a steering failure into a potential sinking — it must be checked and addressed before rigging steering alternatives.

A balanced combination of headsail (pushing bow away) and reduced main (less aft pull) can be trimmed until the boat holds a reaching course without rudder input. The specific balance is boat-dependent and takes experimentation, but most boats can achieve this.

Sail trim steering is limited to reaching and running courses — it cannot reliably hold an upwind heading. The emergency tiller provides direct rudder control regardless of wind angle, giving the full range of heading options.

The boat turns away from the side with more drag. To turn to starboard, lengthen the port-side warp — the increased drag on the port quarter pushes the stern to port, and the bow swings to starboard.

An effective jury rudder needs a flat, rigid surface to generate hydrodynamic force and a long pole for the pivot/lever arm. A floorboard or hatch cover provides the blade; a spinnaker or whisker pole provides the shaft and lever. Control lines run port and starboard to the cockpit.

Cospas-Sarsat stopped monitoring 121.5 MHz on 1 February 2009. A 121.5 MHz-only beacon transmits but no satellite will receive and relay the distress alert to rescue services. Only 406 MHz beacons provide satellite-based alerting.

The vessel EPIRB alerts rescue services to the vessel's location, not to the location of the person in the water. A PLB worn by the individual is the device that can alert rescue services to a specific person separated from their vessel.

An EPIRB registered to the previous owner will alert rescue services with incorrect vessel description, wrong emergency contacts, and mismatched information. Update the NOAA registration to your details before any offshore passage. The previous owner's contact may no longer have any knowledge of you or your voyage.

EPIRB battery replacement must be performed by an approved service centre — not by the owner. Opening the sealed housing, replacing the specialised battery, and re-certifying the unit requires professional equipment. Book service before expiry, not after — service centres can have waiting times.

Satellite monitoring of 121.5 MHz ended on 1 February 2009. A 121.5 MHz-only beacon cannot alert the Cospas-Sarsat network. While aircraft and some vessels may still monitor 121.5 MHz locally, it is not a reliable or compliant primary distress beacon.

Class 1 EPIRBs have automatic float-free capability — an HRU releases the EPIRB from its cradle if the vessel sinks to approximately 4 metres, and a water-activated switch triggers automatic inflation. Class 2 EPIRBs require manual activation only.

The emergency contact is called by the rescue coordination centre when a beacon alert is received. A reachable contact who can confirm 'Yes, they are at sea on that vessel' or 'No, the beacon must have activated accidentally' dramatically affects the speed and scale of the SAR response.

EPIRB batteries cannot be replaced by owners — the process requires opening a pressure-rated sealed housing, fitting a specialised battery, and re-certifying the unit's ID and performance. Book an approved service centre now, before expiry. Service centres have lead times.

A vessel EPIRB signals the position of the boat. A PLB worn by an individual signals that person's position. If a crew member goes overboard and is separated from the vessel, only the PLB they are wearing can alert rescue services to their specific location. The vessel EPIRB remains with the boat and provides no direct help to the person in the water.

Fuel vapours and LPG are heavier than air and accumulate in the lowest point of the engine space. A spark on engine start is sufficient to ignite them. Four minutes of blower operation before starting clears the vapour concentration below the explosive threshold.

Water on a hot oil fire causes explosive vaporisation — a fireball that causes severe burns. The correct response is a fire blanket to smother the fire, removing the oxygen. If no blanket is available, a CO2 extinguisher or Class F/K extinguisher. Never water.

Entering a smoke-filled space without breathing apparatus is extremely dangerous — smoke incapacitates quickly. Close the hatch to restrict oxygen (slowing the fire), activate fixed suppression if available, and prepare to abandon. Opening hatches brings more oxygen to the fire.

CO2 displaces oxygen and remains at dangerous concentrations for an extended period in a closed space. After activation, keep the space sealed for 15 minutes (to ensure suppression), then ventilate thoroughly before any crew enters. Entering too early risks asphyxiation.

Engine room fires are typically Class B (fuel, oil) or Class C (electrical). CO2 and clean agent are preferred because they leave no residue (dry chemical residue can damage engine components) and are effective on these fire classes. CO2 displaces oxygen — the engine room must be ventilated before re-entry.

Water hitting hot oil (above 300°C) instantly vaporises. The steam expansion and oil droplet dispersal creates an explosive fireball. This is extremely dangerous and the mechanism behind many serious galley burns. Use a fire blanket or Class F extinguisher instead.

Any electrical switch (including light switches, bilge blower switches) can produce a spark. LPG below explosive concentration threshold in an enclosed space can be ignited by a single spark. The priority is zero ignition sources while the gas is present. Ventilate by opening hatches — manually, without using any switches.

Position yourself between the fire and the exit so you always have an escape route. Aim at the base of the flames — that's where the fuel is. Never let the fire position get between you and the way out.

CO2 at the concentrations required for fire suppression is immediately dangerous to life. Keep the space sealed for at least 15 minutes after activation (to ensure the fire is out), then open hatches and ventilate thoroughly before any crew member enters.

Standard first aid courses are designed for settings where EMS is minutes away — the focus is stabilise and wait. Wilderness First Aid teaches extended management of an injured person over hours or days without professional medical support. This is exactly the offshore scenario.

Shivering stopping in a hypothermic patient is an ominous sign. Shivering is the body's last mechanism for generating heat. When it stops, it means the body has exhausted this response and core temperature is falling faster. The patient has moved from mild to moderate hypothermia — treatment urgency increases.

Direct pressure must be maintained for a minimum of 10 minutes before checking. Removing the dressing early disturbs the clotting process. Apply additional dressing over the original and continue firm direct pressure. Do not remove the first dressing.

The cold brain metabolises oxygen much more slowly than at normal temperature. Patients have survived neurologically intact after prolonged cardiac arrest in cold water. The standard in wilderness medicine is to continue CPR until the patient is rewarmed or transferred to professional care — up to 60 minutes is appropriate in hypothermic cardiac arrest.

Remove wet clothing (evaporative cooling is significant), insulate with space blankets and sleeping bags, apply warmth to the core (armpits, chest, groin). Hot showers and hot water bottles risk burns on cold skin. Rubbing extremities returns cold blood to the core. Alcohol causes peripheral vasodilation and drops core temperature further.

Do not remove the dressing early — this disrupts the clotting process. Apply additional dressing on top and continue firm pressure for at least 10 minutes total. Only after 10 minutes of uninterrupted pressure should you check the wound.

Any loss of consciousness after a head impact is a serious sign. Headache and nausea after head trauma with LOC indicates a potentially significant head injury. The patient must rest, be monitored for deteriorating consciousness, pupil changes, or worsening symptoms. Medical advice should be sought and diversion to port considered.

'Not dead until warm and dead.' The cold brain has dramatically reduced metabolic oxygen demand. Patients have survived neurologically intact after prolonged hypothermic cardiac arrest. Continue CPR until the patient is rewarmed and professional care is available — up to 60 minutes is standard practice.

Telemedicine services connect offshore crews with physicians in real time via satellite phone or SSB radio. The physician guides treatment decisions, dosages, and evacuation timing — decisions that are extremely difficult to make correctly without medical training. This dramatically improves outcomes in offshore medical emergencies.

At 10nm distance in the dark, only a parachute rocket has sufficient altitude and burn time to be seen. The rocket rises to 300m and drifts on its parachute for 40 seconds — giving the other vessel time to take a bearing. Handheld flares at water level are not reliably visible at 10nm.

42 months after March 2022 = September 2025. These flares are right at expiry — at the time of checking, they may or may not still be within the compliance window. In practice, replace them. Flares at the edge of their life are unreliable.

For a helicopter within close range, orange smoke is ideal — it marks position and gives the pilot critical wind direction information for the approach and any hoist operation. A parachute rocket at close range is unnecessary and a possible hazard to the aircraft.

A radar SART responds to each 9GHz radar sweep with 12 blips in a line extending from the SART's position radially outward. Rescuers recognise this distinctive pattern and home in on it by moving toward the strongest return.

At 15nm in the dark, only a parachute rocket has sufficient altitude and brightness to be reliably visible. Handheld flares at water level are not visible at that range. Orange smoke and signal mirrors require daylight.

A rocket fired exactly vertical will have the spent casing fall back directly onto the boat as the rocket rises. Angling 15 degrees into the wind ensures the casing lands clear of the vessel and crew.

42 months after January 2022 = July 2025. In June 2025, the flares are within their 42-month compliance window — just barely, with one month remaining. Plan to replace them immediately.

An AIS-SART transmits position as an AIS target — it appears directly on nearby vessels' chart plotters with a GPS-accurate position. Rescuers can navigate directly to it. A radar SART shows only a blip pattern on radar, requiring interpretation and manual homing.

Orange smoke serves two purposes for a helicopter approach: it marks position and shows wind direction and speed at sea level — information the pilot needs for every approach and any hoist operation. Signal mirrors require direct sunlight and don't indicate wind. A handheld red flare is a fire hazard near a helicopter.

A slight drip from the stuffing box is deliberately maintained for lubrication. A steady stream means the packing gland needs tightening — the packing has compressed or worn. Tighten the gland nut (1/8 turn increments, then check) until the rate drops to a drip. Don't fully seal it — the shaft needs some lubrication.

A failed seacock body means the ball valve cannot stop the flow. The wooden bung is designed exactly for this situation — drive it into the through-hull opening to block the water. This is why every seacock must have an attached bung of the correct size.

If pump capacity is exceeded, pumping alone cannot save the vessel. The flooding source must be physically stopped or reduced — a bung, plug, or collision mat. If this is not achievable, MAYDAY must be called immediately while damage control continues.

A grounded vessel with a hull breach may be partially sealed by the seabed. Refloating removes this natural plug and opens the breach to water pressure. Assess the breach and have damage control ready before powering off. In some cases, waiting for a tow or diver is safer than refloating independently.

Pumping without controlling the inflow is ineffective for any significant breach. The priority is to find the source, stop or reduce the flow, then pump. Closing seacocks is part of finding and stopping the source.

If the seacock body fails (cracks, corrodes, or the hose fitting breaks), the ball valve cannot stop the flow. The wooden bung is driven directly into the through-hull opening to block it. Each bung must be the correct size for its through-hull — that's why they are attached directly to the fitting.

120 L/min flooding cannot be managed by pumping alone — no practical combination of hand and electric pumps can keep pace. The only solution is to stop or dramatically reduce the flooding source using bungs, plugs, or a collision mat. Pumping continues in parallel but is not the primary solution.

Water at the keel sump after a grounding can indicate that the keel bolts have worked loose or the keel bedding has cracked, allowing water to enter along the bolt holes or keel joint. This is a serious structural issue requiring immediate assessment and MAYDAY consideration.

A collision mat (heavy canvas or sail) deployed over the hull exterior is held against the breach by water pressure. It reduces (though rarely eliminates) inflow and buys time for repair or rescue. Heeling toward the damaged side lifts the breach higher and also reduces inflow.

At 350nm offshore you are well beyond the range of SOLAS B or coastal-grade rafts. SOLAS A or ISO 9650-1 Type 1 is required — built for open ocean survival, extended exposure, and severe sea conditions.

Service intervals are not recommendations — they are the manufacturer's assessed limit for reliable function. An overdue raft may not inflate. No offshore passage should depart with an out-of-service raft aboard.

The HRU is triggered by water pressure at approximately 4 metres depth. It cuts or releases the strap securing the raft to its cradle. The painter — still attached to the vessel — then pulls taut and inflates the raft as the vessel sinks, allowing the raft to float free.

The sequence matters. Head count ensures no one is left aboard. Cutting the painter ensures you are not dragged down with the sinking vessel. Closing the canopy reduces heat loss immediately. Bailing and drying reduces hypothermia risk. Then you can take stock and activate the EPIRB if not already transmitting.

At 400nm offshore you need the offshore specification — SOLAS A or ISO 9650-1 Type 1. Coastal-grade rafts (SOLAS B, ISO 9650 Type 2) are not built for open ocean survival conditions.

An expired HRU is a critical failure point. If the boat sinks with an expired HRU installed, the raft may not release from the cradle and will go down with the vessel. Replace it before departure.

Cut the painter once all crew are aboard and the raft is clear. If you cut it too early, crew still in the water or on the vessel lose the connection to the raft. If a sinking vessel pulls the painter tight before you cut, there is a risk of the raft being dragged down.

Hypothermia becomes rapidly dangerous below 15°C water temperature. Prolonged exposure even in 20°C water will eventually cause heat loss, but below 15°C the timeline shortens dramatically. In a raft, staying dry and insulated is the primary thermal priority.

Stay with the raft. A raft is a highly visible signaling platform carrying an EPIRB, flares, a radar reflector, and an orange canopy. A person in the water is almost invisible from any distance. The instinct to swim is almost always wrong.

Wire jacklines roll underfoot under load, which can cause a sailor to slip and fall overboard — the very accident the jackline is meant to prevent. Webbing lies flat on deck.

The spotter's sole job is maintaining visual contact with the casualty. Losing sight in a seaway can make recovery a search operation. All other tasks fall to other crew members.

The engine must be stopped well before the casualty reaches the stern. A spinning propeller is lethal. Shift to neutral and allow the boat to drift the final distance.

A halyard rigged to a winch provides mechanical advantage. A MOB sling under the armpits distributes the load safely. Lifting by the arms alone is insufficient for a waterlogged person and risks injury.

A tether longer than 2 metres allows a person to fall far enough from the boat to be dragged underwater before the vessel can be stopped. Short tethers — under 2 metres — are the standard for offshore use.

The spotter's only job is maintaining continuous visual contact with the casualty. In a seaway a person can disappear from sight in seconds. All other tasks are for other crew members.

The engine must be shifted to neutral and stopped well before the casualty reaches the stern. A spinning propeller is lethal — this step is non-negotiable regardless of conditions.

Wire jacklines roll underfoot under a sailor's weight, creating a tripping hazard that can cause the very fall they are meant to prevent. Webbing lies flat on deck.

An unconscious casualty must be recovered horizontally using a sling and halyard. Bending them over the rail headfirst risks spinal injury and compromises their airway. Have CPR ready the moment they are aboard.

Channel 16 is the international distress, safety, and calling frequency. All distress communications begin on Channel 16. Vessels are required to maintain a continuous watch on Channel 16 when underway.

Without GPS integration, the DSC distress call still transmits your MMSI and the selected distress type. Rescue services know who you are but not where you are. Connecting the VHF to a GPS source so position is included in the distress call is an essential installation step.

The correct MAYDAY format requires three repetitions of MAYDAY, three repetitions of the vessel name, the MMSI number, position, nature of distress, persons aboard, and ends with 'Over'. Abbreviated versions may be misheard or fail to convey all the information rescuers need.

Channel 16 is the calling channel as well as the distress channel. Initiating contact on 16 is correct. But extended conversations must move to a working channel to keep 16 clear for distress and safety traffic. Acknowledge, agree a working channel, and move.

Channel 16 is for initial contact and distress only. Working conversations must move to an agreed working channel (68, 69, 72, etc.) to keep Channel 16 clear for distress and safety traffic.

Without a GPS fix, the DSC call transmits your MMSI and distress type but no position. Rescue services know you are in trouble but not where. GPS integration is a critical installation step for DSC to be fully effective.

The vessel name is stated three times in the MAYDAY call to ensure it is received clearly despite noise and interference. The MAYDAY prefix itself is also stated three times for the same reason.

PAN PAN is the urgency call for serious situations requiring assistance that do not yet involve grave and imminent danger. A medical situation requiring advice qualifies. MAYDAY is reserved for situations where life is in immediate danger. SECURITE is for navigational and meteorological hazards.

An accidental DSC distress call must be cancelled immediately by transmitting on Channel 16, identifying the vessel, and confirming the alert was sent in error. Switching off the radio does not cancel an alert already received by coast guard stations. False alerts are a serious matter and must be reported — not ignored.