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How shallow water affects Manoeuvring? In shallow waters, manoeuvring has very many facets and it is necessary that we understand the same clearly. Such knowledge helps us to understand the effects of interactions including squat and the sluggish way the ship handles in such waters. It also helps us to avoid them and plan for…
What is Traffic Separation Scheme (TSS) Traffic Separation Schemes are designed to ease congestion, assist traffic flow and prevent ships approaching head on to each other in the busier waterways of the world. Their use should make navigation simple, but a great number of close quarters and collision situations continue to arise within Traffic Separation…
What does Responsibility Means With responsibility goes authority and with them both goes accountability. This accountability is not for the intentions, but for the deed. The captain of a ship, like the captain of a state, is given honour and privileges and trust beyond other men. But let them set the wrong course, let him…
What is Contingency Planning Contingency Planning means preparing a documented plan for emergencies and to ensure all on board are trained and exercised toward its execution. Every seafarer is required to be prepared for emergencies. Such preparedness can only be built in through well laid out plans, training programmes and properly worked out exercises. A…
The Harmonized System Of Survey and Certification (HSSC) Previously the certificates were issued on different dates when the relevant certificates expired. They had different periods of validity. When their annual and other surveys became due, preparations had to be done for each. Often preparations were duplicated, because items for inspection under different surveys overlapped. Thus…
Stopping Distance Stopping distance is the distance, which, a ship will continue to move after action is taken to stop engines and till the ship comes to rest. Stopping distance details may be provided for sea speed, harbour speed, half speed etc. It may be provided for loaded & light conditions. Nowadays the precise course…
Read More “Stopping Distance, Turning Circle, Ships Manoeuvring” »
After reading this blog, you will be able to take amplitude of the heavenly bodies and calculate the compass error. Ensure that you workout such errors as frequently as possible when on onboard. Since refraction causes celestial bodies to appear elevated in the sky, they are above the horizon longer than they are otherwise. The…
Read More “Rising and Setting – Azimuth by Amplitude Twilight” »
What is cargo watchkeeping?? Carriage of cargoes is an important aspect of merchant shipping and your duty on board is: • To inspect, • Load as planned, • Carry, • Care for and deliver the cargo to the consignee in the same condition in which it was received on board, as far as practicable. •…
Why the vessel has to be inclined ??? To obtain the metacentric height it is necessary to determine the position of the centre of gravity `G’. This calculation consists of two parts. a) The first is the finding of the height of the metacentre ‘M’ above the keel ‘K’. This is purely geometrical depending only…
When in port the ship either anchors or moors to facilitate loading and discharging operations. Each of these operations requires skills and detailed knowledge of the capability of the ship and local conditions. A pilot may provide some of these but there are some ports where the master may be required to berth his ship…