2.1 Abandon Ship Procedures & Safe Water Entry

Abandon Ship Procedures & Safe Water Entry

Quick Reference: Abandoning ship is the measure of absolute last resort. The vessel itself remains the best survival craft until it is in imminent danger of sinking, burning out of control, or capsizing. Under SOLAS Chapter III and 46 CFR, the order to abandon ship can be given only by the Master. If water entry from height is unavoidable, the maximum recommended jump height is 4.5 meters (15 feet), executed feet-first with the body vertical, legs crossed at the ankles, lifejacket collar clamped down, and airway sealed.

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1. The Abandon Ship Decision & Command Hierarchy

In maritime emergencies, premature abandonment is historically one of the leading causes of preventable fatalities. A damaged vessel, even if listing heavily, taking on water, or disabled, almost always provides superior shelter, communication capability, thermal protection, and radar visibility compared to an inflatable liferaft or open water.

Legal & Operational Command Authority

• Sole Authority of the Master: The Master holds exclusive statutory authority under international maritime law and national regulations (such as USCG 46 CFR Part 35 / Part 108) to order the vessel abandoned. Neither the Chief Mate, Chief Engineer, nor shore-side management can authorize abandonment while the Master is conscious and capable of command.
• Order Transmission: The order is broadcast verbally via the ship's Public Address (PA) system, backed by the General Emergency Alarm (seven short blasts followed by one continuous long blast on the ship's whistle and general alarm bells), accompanied by explicit verbal instructions to proceed to muster stations and prepare survival craft.
• Golden Rule of Survival: "A ship is the best lifeboat until it is sinking beneath you, completely engulfed in uncontainable fire, or capsizing uncontrollably."

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|                        EMERGENCY COMMAND FLOW                           |
|                                                                         |
|  [ Master Assesses Vessel Damage ]                                       |
|                  |                                                      |
|                  v                                                      |
|  [ Containment / Damage Control Failed: Sinking, Total Fire, Capsize ]  |
|                  |                                                      |
|                  v                                                      |
|  [ Master Sounds General Emergency Alarm & Broadcasts Abandon Order ]   |
|                  |                                                      |
|                  v                                                      |
|  [ Crew/Passengers Execute Muster Duties & Don Thermal/LSA Gear ]       |
|                  |                                                      |
|                  v                                                      |
|  [ Controlled Embarkation of Survival Craft (Dry Boarding Preferred) ]  |
+-------------------------------------------------------------------------+

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2. Muster Station Protocol & Essential Preparations

Upon hearing the general emergency alarm or direct abandon ship broadcast, all crew members and passengers must carry out their specific emergency duties detailed on the ship's Muster List (Station Bill).

Personal Protective Layering & Thermal Clothing

Cold water immersion rapidly drains body heat. What a seafarer wears beneath an immersion suit or lifejacket determines their survival window:

• Avoid Cotton at All Costs: Cotton garments (such as denim jeans, cotton t-shirts, and cotton sweatpants) absorb up to 27 times their weight in water. When wet, cotton fibers collapse, eliminating trapped air pockets and losing approximately 90% of their thermal insulating capacity. Wet cotton accelerates conductive heat loss through the skin.
• Wear Wool, Fleece or Polypropylene: Choose base and middle layers of wool, polyester fleece, or polypropylene. These fibres keep their loft and hold trapped air even when damp, preserving core insulation. The one synthetic caveat is the outer layer: a thin nylon or polyester shell can soften and melt against skin under radiant heat, so where fire is part of the emergency an outer layer of wool or heavy canvas is preferable. The insulating mid-layers themselves are not the hazard.
• Footwear Protocol: Wear sturdy, lace-up boots or athletic shoes. Sturdy shoes provide traction on oily, steeply heeled decks and protect feet from sharp wreckage, burning debris, and barnacles during embarkation. Note: Remove heavy, loose rubber work boots or high-heeled shoes only if they lack ankle support or would impede swimming, but keep footwear on when boarding liferafts to prevent foot lacerations and conductive cooling through the raft floor.
• Head, Neck, and Extremities: Don a wool knit cap (watch cap) and thermal gloves. The head and neck are a disproportionate heat-loss route in cold water: the scalp and neck vessels do not vasoconstrict the way the limbs do, and an unprotected head immersed in cold water cools fast. (The often-repeated claim that "you lose 50% of your body heat through your head" is a myth carried over from a badly designed 1950s trial — the real point is that the head is a high-loss surface you can cheaply protect, and that it must be kept clear of the water.)

Essential Emergency Gear Collection

Assigned crew members must bring key survival equipment to the muster stations and survival craft:

1. Search and Rescue Transponder (SART): 9 GHz radar transponder to locate survival craft on marine X-band radar.
2. Emergency Position Indicating Radio Beacon (EPIRB): 406 MHz satellite distress beacon with integrated GPS and 121.5 MHz homing transmitter.
3. GMDSS Two-Way VHF Survival Radios: Minimum of three portable waterproof VHF units on cargo ships of 500 GT and above and passenger ships (Channel 16 and 06 operational).
4. Thermal Blankets & Extra Provisions: Additional drinking water rations, first-aid satchels, and ship logbooks/manifests.

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3. Safe Water Entry Technique

Direct water entry from the ship's deck into the sea is a high-risk action that should only occur when embarkation into lifeboats or dry-boarding liferafts is impossible (e.g., davits jammed, vessel sinking rapidly, or gangways destroyed).

Step-by-Step Execution of Safe Water Entry

   [Step 1: Scan water below for debris, survivors, oil, propellers]
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   [Step 2: Cross legs at ankles, keeping legs straight and rigid]
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   [Step 3: Clamp lifejacket collar down firmly with one hand/arm]
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   [Step 4: Seal nose and mouth with other hand to block cold gasp]
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   [Step 5: Look straight at horizon (never down, never up)]
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   [Step 6: Step off ledge smoothly (do not dive, do not jump forward)]

1. Pre-Entry Water Clearance Scan: Look down to ensure the entry zone is completely free of floating debris, jagged wreckage, liferafts, other swimmers, and operating propulsion propellers.
2. Secure the Lifejacket Collar: Place one arm firmly across the chest, clamping down on the lifejacket collar and front foam panels. This prevents the buoyant lifejacket from slamming upward against the mandible (jaw) and cervical spine upon surface impact.
3. Protect the Respiratory Tract: Use the fingers of the holding hand (or the second hand) to pinch the nostrils shut while sealing the palm over the mouth. This creates a mechanical barrier against involuntary water inhalation triggered by the cold shock gasp reflex.
4. Lock the Lower Body: Cross the legs firmly at the ankles and press the thighs tightly together. This streamlining minimizes surface area, prevents the legs from being forced violently apart upon impact, and protects the groin and internal body cavities.
5. Establish Visual Horizon Reference: Look straight ahead at the distant horizon. Looking down causes the torso to pivot forward into a dangerous face-first impact; looking up causes the body to arch backward.
6. Step Out Smoothly: Step off the edge with one foot as if walking off a curb. Never dive headfirst, and never leap outward horizontally, as horizontal momentum induces rotational tumbling during descent.

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4. Post-Entry Clearing & Egress Tactics

Once submerged, the buoyant lifejacket will rapidly decelerate the descent and propel the survivor back to the surface.

Immediate Actions on Surfacing

1. Orient and Clear Airway: Open eyes, release the nose grip once clear of the surface, exhale gently to clear any residual water, and verify that the lifejacket is keeping the mouth at least 120 mm (4.7 inches) above the water.
2. Clear the Vessel's Suction & Downdraft Zone: As a ship founders, displacing thousands of tons of seawater, it creates severe localized hydrodynamic currents, turbulent downdrafts, falling rigging, and escaping compressed air geysers. Survivors must immediately swim away from the hull.
3. Swim to Windward (Upwind): Always swim toward the windward side (the side from which the wind is blowing) of the sinking vessel:
   • Fire and Fuel Slicks: Burning bunker fuel, light oil slicks, and debris drift rapidly downwind (to leeward). Swimming upwind ensures clean, non-toxic breathing air and prevents being trapped by spreading surface flames.
   • Drift Rates: The ship's high hull acts as a sail, drifting faster downwind than a human in the water. Swimming to windward prevents the drifting hull from running over or crushing survivors.
4. Aggregate with Others: Locate nearby survivors and form an integrated group. Fasten lifejacket buddy lines together or lock arms. A clustered group presents a vastly superior visual and radar target for Search and Rescue (SAR) aircraft and surface vessels while boosting collective morale.