Grade 10 – Maritime Economics

October 7, 2015

Fishing vessels

[vc_row][vc_column][vc_video link=”https://vimeo.com/522684551″][vc_column_text]The sea produces millions of tons of food each year, and employs millions of people worldwide. Fishing vessels have a variety of designs, depending on the type of fish that they will catch and the length of time they will be at sea. These vessels range from large, well-equipped […]
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October 9, 2015

Tugs and Offshore Service Vessels

[vc_row][vc_column][vc_video link=”https://vimeo.com/522358814″][vc_column_text]When ships come into harbour, or leave a harbour, they require assistance to manouevre in the restricted harbour area. Therefore, harbour tugs have developed over the years to help ships turn, to push them carefully against a wharf when berthing, or to tow them away from that wharf when […]
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September 29, 2015

Dredgers

In all ports, sand/mud accumulates and needs to be removed by specially designed ships called dredgers that suck up the sand from the bottom of the harbour, and carry it out to sea where it is dumped. These are known as suction dredgers. Some ports do not have much sand […]
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September 30, 2015

Warships

The impressive United States aircraft carrier USS Theodore Roosevelt is shown below during her visit to Cape Town in 2007. Aircraft are stowed below deck and are lifted onto the flight deck (the large flat deck shown here), prepared for take-off and take off from the flight deck. They land […]
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September 27, 2015

General terminology relating to ships

Ballast Sea water that is pumped into the ship’s tanks to trim the ship, i.e. to ensure that she is not too high in the bow, or too high in the stern, or listing (leaning to one side) when putting to sea. Ballast is also put into a ship’s tanks […]
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