And so this series on passage planning continues. This time some handy notes on the planning stage of the process.
On what basis should the voyage be planned?
- On the fullest possible appraisal;
- It should be detailed;
- It should cover the entire voyage or passage from berth to berth;
- It should including those are
- as where the services of a pilot will be use.
What factors should the voyage plan include?
The plotting of the intended track on the appropriate scale charts.
This should include:
- An indication of the true direction of the planned track;
- All areas of danger; Existing ships’ routeing and reporting systems; Vessel traffic services,
- Any areas where environmental protection considerations apply.
The main elements to ensure safety of life at sea, safety and efficiency of navigation, and protection of the environment.
These elements should include:
- Safe speed-having regard to the proximity of navigational hazards, the manoeuvring characteristics of the vessel and its draught in relation to the available water depth;
- Required speed alterations – such as where there may be limitations because of night passage, tidal restrictions, or allowance for the increase of
- Draft increase due to squat and heel effect;
- Minimum under keel clearance-in critical areas with restricted
- Water depth;
- Positions where a change in machinery status is required;
- Course alteration points- taking into account the vessel’s turning circle at the
- Planned speed and any expected effect of tidal streams and currents;
- The method and frequency of position fixing- including primary and secondary
- Options, and the indication of areas where accuracy of position fixing is critical and where maximum reliability must be obtained;
- Use of ships’ routeing and reporting systems and vessel traffic services;
- Considerations relating to the protection of the marine environment;
- Contingency plans – to place the vessel in deep water, port of refuge or safe anchorage in t
- he event of any emergency requiring the abandonment of the plan.
Where should details of the voyage plan be recorded?
They should be clearly marked and recorded, as
appropriate, on charts and in a voyage plan notebook or computer disk.
What action has to be taken with regards to the plan before starting the voyage?
It should be approved by the ships’ master.
A Really Handy Range of Revision aids for Kindle
The Really Handy Range of books have been written for the Kindle format. They cover vessel certification, seamanship, ISM , IALA and the COLREGS.