Skip to main content

SHIP PASSAGE PLANNING

This is a NAUTICAL LOG article only. To operate under an actual prepared Plan the navigator MUST refer to IMO RESOLUTION A.893 (21) Annex 25 of SOLAS V.

General

Investigations show that human error contributes to 80% of navigational incidents. Most incidents happen because of simple mistakes using the navigational equipment. Interpretation of the available data, rather than equipment deficiency, basic navigational skills or ability to use the equipment, is the principle cause.

It is imperative to adhere to the IMO Guidelines addressed in the previous Post. Masters and Watchkeepers should take measures to ensure they appreciate and reduce risks,

  • ensure that all the vessel's navigation is planned in adequate detail with contingency plans
  • ensure that there is a systematic organized Bridge Team on Watch
  • comprehensive briefing of all concerned with navigation, both Officers and Ratings
  • close and continuous monitoring of the vessel's position
  • use different methods to plot the vessel's position
  • cross-check individual decisions do not be overconfident
  • ensure information of traffic plots is used carefully
  • bear in mind the other traffic may alter course and speed at any time
  • ensure optimum and systematic use is made of all data by the Bridge Team
  • ensure the intentions of a Pilot, particularly a Compulsory Pilot, are fully understood and acceptable to the vessel's Bridge Team

Responsibility for Voyage Planning

In most deep-sea vessels the Master delegates the initial responsibility for preparing the Plan to the Navigation Officer. On small vessel's the Master will prepare the Plan him/herself. Using the Guidelines the Navigation Officer will prepare the Plan prior to departure and present it to the Master. If the destination port is not known then the Plan will be extended or amended during the voyage, as appropriate, to the Master's Orders.

Principles of Voyage Planning

The four stages of Appraisal, Planning, Execution and Monitoring logically follow each other.

Appraisal is the process of gathering all information relevant to the proposed voyage. The Guidelines list the items that must be taken into account.

Planning follows acting on the Master's instructions. Again the Plan must adhere to the Guidelines.

Execution of the finalized Plan once again following the Guidelines. The Master may review and alter the Plan due to changing circumstances.

Monitoring of the vessel's progress along the planned track. All the standard watchkeeping rules must be followed as usual.

Good Watch

Comments

Popular posts from this blog

PERIGEAN SPRING TIDES

It sometimes happens that one is going to write a Post on a subject when lo and behold there is already an excellent one.  Such is the case today; so rather than repeat everything let me refer you to the source of that Post

At present we are experiencing Perigean Spring Tides which occur when the Moon is at perigee on its oval path that is the closest point to Earth.  One of the principal results are higher than usual Spring Tides as against the Neap Tides.

Should you be interested in the full explanation of this phenomenon then you might like to reference "Old Salt Blog" which has an excellent explanation of this event and uses all the correct terms - quite unlike our Media here in South Florida.

Good Watch.

STANDING DOWN PROBLEMS CONTINUE

In addition to the recent "Standing Down" of training voyages for its Midshipersons the United States Merchant Marine Academy (USMMA) has received warnings about the quality, or lack thereof, of its training programme.  The Middle States Commission of Higher Education (MSCHE) report stated that accreditation was in jeopardy for non-compliance in certain areas.

Coupled with the continuing problems requiring disciplinary actions including dismissal from the Navy the United States Navy (USN) has had in recent years this does not bode well for the professionalism of the seafaring community of the United States.

It is clear to this writer, an International Master Mariner with 50 years of experience, that the training sources for both Officers and Ratings need an immediate complete examination and review.  Currently the Officer commanding riverine craft based in Bahrain has been dismissed.  Another nine Officers and Ratings are under disciplinary action as a result of the capture by…

FINALLY AN ATTEMPT TO RECOVER

NAUTICAL LOG has on previous occasions discussed the SS El Faro VDR in a Post titled RELUCTANCE TO RECOVER and two other Posts about the VDR (Voyage Data Recorder) of the SS El Faro

The Ship sank in Hurricane Joaquin on October 01, 2015 off the Bahamas.  There has seemed to be a reluctance by all parties involved to continue the attempt to recover the VDR from some 15,000 feet - admittedly a considerable depth.  However because of the importance of possible data on the recorder such an attempt must be made.

Finally the NTSB has contracted with the USN Supervisor of Salvage to assist in the recovery of the VDR.  The USNS Apache will depart in early July 2016 together with USCG, Phoenix International and an underwater operating vehicle the CURV-21.

Once the VDR is recovered it will be brought ashore to the NTSB laboratory and thoroughly studied to download and analyze the information.  With these results in hand the USCG will conduct a two hearings to investigate the sinking and questio…