Cargo Ships Info

A Cargo Ship is any sort of ship or vessel that carries cargo, goods, and materials from one port to another. Thousands of cargo carriers ply the world's seas and oceans each year; they handle the bulk of international trade. Cargo ships are usually specially designed for the task, often being equipped with cranes and other mechanisms to load and unload, and come in all sizes. Today, they are almost always built of welded steel, and with some exceptions generally have a life expectancy of 25 to 30 years before being scrapped.

Specialized types of cargo vessels include container ships and bulk carriers (technically tankers of all sizes are cargo ships, although they are routinely thought of as a separate category)........

The earliest records of waterborne activity mention the carriage of items for trade; the evidence of history and archaeology shows the practice to be widespread by the beginning of the 1st millennium BC. The desire to operate trade routes over longer distances and at more seasons of the year motivated improvements in ship design during the Middle Ages. Before the middle of the 19th century, the incidence of piracy resulted in most cargo ships being armed, sometimes quite heavily, as in the case of the Manila galleons and East Indiamen.

Piracy is still quite common in some waters, particularly around Asia, most notably in the Malacca Straits, a narrow channel between Indonesia and Singapore / Malaysia. Also piracy prone are the waters off Somalia and Nigeria, while smaller vessels are also in danger along parts of the South American coasts.

While the definitions have become "cross-pollinated" over the years, "cargo" technically refers to the goods carried aboard the ship for hire, while "freight" refers to the compensation the ship or charterer receives for carrying the cargo. Generally, the modern ocean shipping business is divided into two classes:

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Liner business: typically (but not exclusively) container vessels (wherein "general cargo" is carried in 20 or 40-foot "boxes"), operating as "common carriers", calling a regularly-published schedule of ports. A common carrier refers to a regulated service where any member of the public may book cargo for shipment, according to long-established and internationally agreed rules. Tramp-tanker business: generally this is private business arranged between the shipper and receiver and facilitated by the vessel owners or operators, who offer their vessels for hire to carry bulk (dry or liquid) or break bulk (cargoes with individually handled pieces) to any suitable port(s) in the world, according to a specifically drawn contract, called a charter party. Larger cargo ships are generally operated by shipping lines: companies that specialize in the handling of cargo in general. Smaller vessels, such as coasters, are often owned by their operators.

Vessel prefixes: Before the vessel's name will be found a category designation. Naval ships, for example, will have "USS" (United States Ship), "HMS" (Her/His Majesty's Ship), "HTMS" (His Thai Majesty's Ship). Merchant ships may have "RMS (Royal Mail Ship, usually a passenger liner), "MV" (Motor Vessel, (powered by Diesel). "SS" (Steam Ship, now seldom seen, powered by steam). "TS", sometimes found in first position before a merchant ship's prefix, denotes that it has Twin Screws.

Cargo ships are categorized partly by their capacity, partly by their weight, and partly by their dimensions (often with reference to the various canals and canal locks through which they can travel).

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