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There have been a significant number of groundings, collisions and near miss incidents caused as a result of maneuvering in an anchorage, dragging anchor or leaving it too late before heaving up an anchor in poor weather. These incidents have resulted in the loss of lives, pollution and costs running into tens of millions of…
Avoiding damage to the anchor system If the paid out length of the chain has to be adjusted, or when the anchor heave-in-operations has to be started, ensure there is minimum tension in the chain. The windlass is not designed for breaking out an embedded anchor or hauling the vessel as the motor is the…
Annex V prevention of pollution by garbage from ships (entered into force 31 December 1988) Revised annex V entered into force 1 January 2013. The purpose of Annex V of the MARPOL convention is to eliminate and reduce the amount of garbage being dumped into the sea from ships. Garbage from Ships Annex V Comminuted…
Within 12 hours before departure, the ships steering gear is checked and tested by the ship’s crew. The test procedures include the operation of the following: The Main steering Gear The auxiliary steering gear The remote steering gear control systems The steering positions located on the navigation bridge. The emergency power supply The rudder angle…
How CO2 extinguishes fire At atmospheric pressure carbon dioxide is a colouless, odourless and non-conductive gas that can quickly and thoroughly permeate a protected area, reduce the oxygen to a level below 15%, where combustion is not supported and extinct the fire. CO2 extinguishes the fire by: Reducing the oxygen level – The primary effect…
Three types of methodsVessel generally use any one of the following methods: “Dropping” or “letting go” anchor from the hawse pipe of just above the water line. For depths up to 20m. “Walking back” anchor just above the sea bed for depths between 20 to 50m. “Paying out under power” for depths between 50 to…
There are many areas where the transfer of bulk liquid cargoes and the methods used can give rise to either a short out-turn or a cargo contamination. If we consider the cargo loading and discharge cycle, a ship must first be prepared with suitably clean tanks to load the cargo; then a correct loading sequence…
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Maintenance, testing and inspections for fire protection systems as well as fire-fighting systems and appliances are required in accordance with SOLAS Chapter II-2/14.2.2 as quoted below. 2.2 Maintenance, testing and inspections 2.2.1 Maintenance, testing and inspections shall be carried out based on the guidelines developed by the Organization (Refer to MSC.1/Circ.1432 as amended, including the…
Why do we need to evaluate a discharge performance ? When a vessel is fixed for trade, the Owner & Master have a commercial responsibility is to : load, carry and discharge the cargoes without incident, üin the most cost-efficient manner without compromising safety or the environment. This means vessel has to perform to meet the…
Principle of operation The measurement technique used in the Oil Discharge Monitoring & Control System is based on scattered light. The sample of discharge water passes through a detector cell while light enters and leaves the measurement area of the cell. The sample flow is at right angles to the optical path. When no particles or oil droplets…