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Navigation Safety At Sea - Cargo Ships Various Guideline

While planning the passage for intended voyage the safety of navigation should be accommodated in, where it is both reasonable and possible to do so, and the requirement to maintain schedules should not override the practices of good seamanship.
CMA CGM Lamartine at sea passage
Fig: CMA CGM Lamartine at sea passage

Precaution for Safety Navigation of Container ships

Maintaining stability in Container Ship Operation
As the nature of container ship operation, it’s tread to be lack of stability, due to Top Heavy Load, the Master shall always take special attention for her stability. Also the Master should remind factors to cause reducing stability more such as Alternating course with Big angle of Rudder, Towing by tugs at the scene of Berthing / Un-berthing, etc.....

Container Ship navigation - Meeting with Heavy weather
Stoppage of the main engine in heavy weather conditions could result in violent rolling, pitching and heaving motion of the vessel, highly stressing cargo securing equipment on deck....

Container Ship navigation - passage planning guideline
Before proceeding to sea, the Master shall carefully check the Passage Plan, made after receiving the voyage instruction from the Charterer or the Company. Passage plan shall be made from berth to berth acting on the principle of Safety-first, while also taking operating efficiency into consideration.....
Navigational guidance for watch officers onboard cargo ship
Bridge watchkeeping is the most important activity conducted at sea. Upon the watchkeeper’s diligence rests the safety and security of the ship, her entire crew, the cargo and the environment. It is a demanding activity, requires support, encouragement, motivation, self-discipline and a high standard of professionalism.

Navigation in cold districts and countermeasures
The Master shall ensure that appropriate measures have been taken to prevent damage to Vessel, Machinery, Pipelines and Equipment prior entry into areas with Freezing Conditions.

Stability and hull strength check item for cargo ships
Masters are reminded of the dangers that inaccurate estimating of cargo centres of gravity can present to the stability of the vessel. Crew members must advise masters when similar cargoes of differing densities are being loaded so that a proper estimate of weights and positions of centres of gravity can be determined....

Ship Encountering Parametric Roll In A Seaway
Parametric roll is an extreme condition for container securing since it combines the effect of large roll and pitch amplitudes. This scenario imposes significant loads on container securing systems....

Action by vessels navigating in congested water
The OOW must always be aware of the possibility of navigation in congested waters, and if the vessel is expected to navigate such areas, he must take appropriate action in accordance with COLREGS 1972 ...

Action by vessels navigating in an area of restricted visibility
How to confirm stabilty condition ?

How to maintain watertight integrity?
Since requirement of closure to maintain Water tightness is concerned with both Seaworthiness and Cargo care, following attentions should be paid, especially at:

Heavy weather countermeasures for prudent navigator
Navigation in heavy weather is defined as conditions with winds of Beaufort Scale 7 or more and a Significant Wave Height of 4 meters or more....

Our additional pages contain somewhat larger lists of resources where you can find useful informations

  1. Seaworthiness for cargo ship, international navigational condition & procedure for Insurance claim
    Insurance premiums amount to a very large proportion of the ship’s running costs. Whilst the owner insures his ship against certain risks and may present a claim which will recuperate at least part of his losses, the effect of submitting many claims will have the effect of increasing the insurance premiums for the next year. It is therefore in everyone’s interest to ensure that risks are not taken, that the ship operates safely and that accidents and incidents are avoided....

  2. Preventing pollution at sea & ballast water management system
    The purpose of the Ballast Water Management System is to minimize the transfer of Non-indigenous harmful aquatic organisms and pathogens from one area to another (arrival port) through the ship’s ballast water system. Invasive marine species are one of the four greatest threats to the world’s oceans.
    Read more.....

  3. Ships bunkering operation safety guideline
    The operation of cargo ships bunkering involved many hazards. There are many check items that should be complied with to ensure a safe working atmosphere....Read more.....

  4. Detecting fire and extinguish at an early stage
    Fire detection and extinguishing at a very early stage is most important as most big fires start small. At least the following matters are to be considered: Read more.....

  5. Cargo and ballast handling safety procedure
    Cargo and ballast operation plans shall be carefully prepared and monitored on board. Such plans take the following into consideration and are verified by Superintendents during ship visits...Read more.....

  6. Procedure for storing, collecting & disposing ship generated garbage
    Collection and separation are to be carried out according to the procedures laid down in this Garbage Management Plan. Garbage collection points (receptacles) are to be established in the following areas galley, pantry,smoke rooms,all cabins,hospital,bridge,laundry,ships office,ECR,E/R workshop , near incinerator,purifier room,generator,paint room, etc. Read more.....

  7. Safety in engine room - Preventing machinery space hazards
    Merchant Shipping regulations require every dangerous part of a ship's machinery to be securely guarded unless it is so positioned or constructed that it is as safe as if it were securely guarded or is otherwise safeguarded. Read more.....

  8. Common items for elementary basic safety familiarization
    The person designated by the Master as trainer shall train the new crew member in the following areas using the ship’s Muster Lists, SOLAS Training Manual, Fire Safety Operational Booklet and other relevant documents and publications.Read more.....

  9. Ships motion at sea and required precautions
    Ships are affected by movement in six degrees of freedom; rolling, pitching, heaving, swaying, surging and yawing. Of these, rolling, pitching and heaving generate the highest forces during heavy weather. Read more.....

  10. Stress and Stability Calculation ,draft , trim & free surface effect
    The Master shall ensure that the conditions of stability, hull strength, draft and trim of the vessel at sea and on arrival / departure at / from port and during loading / unloading cargo, bunkering and water ballast exchange, have been worked out, to secure safety of the vessel. He shall confirm the safety of the vessel by proper GM, stress and other factors as being within appropriate Limits.Read more.....

  11. Passage planning requirement for safe navigation at sea
    Before proceeding to sea, the Master shall carefully check the Passage Plan, made after receiving the voyage instruction from the Charterer or the Company. Read more.....

  12. Safe anchoring practice
    Anchoring into "Deep water" which is defined depth of water is beyond 50 meter, must be carried out with "Walk-back Style, however, on the VLCC operation there exists such a big inertia, Master can treat with Walking-back style even in the anchorage where water depth less than 50m, if following conditions are to be forecasted. Read more.....

Other info pages !

Ships Charterparties Related terms & guideline
Stevedores injury How to prevent injury onboard
Environmental issues How to prevent marine pollution
Cargo & Ballast Handling Safety Guideline
Reefer cargo handling Troubleshoot and countermeasures
DG cargo handling Procedures & Guidelines
Safety in engine room Standard procedures
Questions from user and feedback Read our knowledgebase
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