Showing posts with label ship. Show all posts
Showing posts with label ship. Show all posts

Saturday, June 11, 2011

Ship Transport

Ship transport is watercraft carrying people (passengers) or goods (cargo). Sea transport has been the largest carrier of freight throughout recorded history. Although the importance of sea travel for passengers has decreased due to aviation, it is effective for short trips and pleasure cruises. Transport by water is cheaper than transport by air.

Ship transport can be over any distance by boat, ship, sailboat or barge, over oceans and lakes, through canals or along rivers. Shipping may be for commerce, recreation or the military. Virtually any material that can be moved, can be moved by water, however water transport becomes impractical when material delivery is highly time-critical. "General cargo" is goods packaged in boxes, cases, pallets, and barrels. Containerization revolutionized ship transport in the 1960s. When a cargo is carried in more than one mode, it is intermodal or co-modal.At the age of 15 you can work with Ship transport.

Merchant shipping

2005 registration of merchant ships (1,000 gross register tons (GRT) and over) per country.[1]

A nation's shipping fleet (merchant navy, merchant marine, merchant fleet) consists of the ships operated by civilian crews to transport passengers or cargo. Professionals are merchant seaman, merchant sailor, and merchant mariner, or simply seaman, sailor, or mariner. The terms "seaman" or "sailor" may refer to a member of a country's navy.

According to the 2005 CIA World Factbook, the world total number of merchant ships of 1,000 Gross Register Tons or over was 30,936. Statistics for individual countries are available at the List of merchant marine capacity by country.

Professional mariners

A ship's complement can be divided into four categories: the deck department, the engineering department, the steward's department, and other.

Deck department

An able seaman stands iceberg lookout on the bow of the freighter USNS Southern Cross during a re-supply mission to McMurdo Station, Antarctica; circa 1981.

Officer positions in the deck department include but not limited to: Master and his Chief, Second, and Third officers. The official classifications for unlicensed members of the deck department are Able Seaman and Ordinary Seaman.

A common deck crew for a ship includes:

A deck cadet is person who is carrying out mandatory seatime to achieve their officer of the watch certificate. Their time onboard is spent learning the operations and tasks of everyday life on a merchant vessel.

Engineering department

A ship's engineering department consists of the members of a ship's crew that operate and maintain the propulsion and other systems on board the vessel. Marine Engineering staff also deal with the "Hotel" facilities on board, notably the sewage, lighting, air conditioning and water systems. They deal with bulk fuel transfers, and require training in firefighting and first aid, as well as in dealing with the ship's boats and other nautical tasks- especially with cargo loading/discharging gear and safety systems, though the specific cargo discharge function remains the responsibility of deck officers and deck workers. On LPG and LNG tankers however, a cargo engineer works with the deck department during cargo operations, as well as being a watchkeeping engineer.

A common Engineering crew for a ship includes:

Many American ships also carry a Qualified Member of the Engine Department. Other possible positions include Motorman, Machinist, Electrician, Refrigeration Engineer, and Tankerman. Engine Cadets are trainee engineers who are completing sea time necessary before they can obtain a watchkeeping license.

Steward's department

A typical Steward's department for a cargo ship would be composed of a Chief Steward, a Chief Cook, and a Steward's Assistant. All three positions are typically filled by unlicensed personnel.

The chief steward directs, instructs, and assigns personnel performing such functions as preparing and serving meals; cleaning and maintaining officers' quarters and steward department areas; and receiving, issuing, and inventorying stores.

On large passenger vessels, the Catering Department is headed by the Chief Purser and managed by assistant pursers. Although they enjoy the benefits of having officer rank, they generally progress through the ranks to become pursers. Under the pursers are the department heads - such as chief cook, head waiter, head barman etc. They are responsible for the administration of their own areas.

The chief steward also plans menus; compiles supply, overtime, and cost control records. May requisition or purchase stores and equipment. May bake bread, rolls, cakes, pies, and pastries.

A chief steward's duties may overlap with those of the Steward's Assistant, the Chief Cook, and other Steward's Department crewmembers.

In the United States Merchant Marine, in order to be occupied as a chief steward a person has to have a Merchant Mariner's Document issued by the United States Coast Guard. Because of international conventions and agreements, all chief cooks who sail internationally are similarly documented by their respective countries.

Other Departments

Staff officer positions on a ship, including Junior Assistant Purser, Senior Assistant Purser, Purser, Chief Purser, Medical Doctor, Professional Nurse, Marine Physician Assistant, and Hospital Corpsman, are considered administrative positions and are therefore regulated by Certificates of Registry issued by the United States Coast Guard. Pilots are also merchant marine officers and are licensed by the Coast Guard. Formerly, there was also a radio department, headed by a chief radio officer and supported by a number of radio officers. Since the introduction of GMDSS (Satellite communications) and the subsequent exemptions from carrying radio officers if the vessel is so equipped, this department has fallen away, although many ships do still carry specialist radio officers, particularly passenger vessels. Many radio officers became 'electro-technical officers', and transferred into the engineering department.

Life at sea

Mariners live much of their life spent beyond the reach of land. They face sometimes dangerous conditions at sea. Yet men and women still go to sea. For some, the attraction is a life unencumbered with the restraints of life ashore. Sea-going adventure and a chance to see the world also appeal to many seafarers. Whatever the calling, those who live and work at sea invariably confront social isolation.

Findings by the Seafarer's International Research Center indicate a leading cause of mariners leaving the industry is "almost invariably because they want to be with their families." U.S. merchant ships typically do not allow family members to accompany seafarers on voyages. Industry experts increasingly recognize isolation, stress, and fatigue as occupational hazards. Advocacy groups such as International Labour Organization, a United Nations agency, and the Nautical Institute are seeking improved international standards for mariners.

Ocean voyages are steeped in routine. Maritime tradition dictates that each day be divided into six four-hour periods. Three groups of watchkeepers from the engine and deck departments work four hours on then have eight hours off watchkeeping. However there are many overtime jobs to be done daily. This cycle repeats endlessly, 24 hours a day while the ship is at sea. Members of the steward department typically are day workers who put in at least eight-hour shifts. Operations at sea, including repairs, safeguarding against piracy, securing cargo, underway replenishment, and other duties provide opportunities for overtime work. Service aboard ships typically extends for months at a time, followed by protracted shore leave. However, some seamen secure jobs on ships they like and stay aboard for years.

In rare cases, veteran mariners choose never to go ashore when in port. Further, the often quick turnaround of many modern ships, spending only a matter of hours in port, limits a seafarer's free-time ashore. Moreover, some foreign seamen entering U.S. ports from a watchlist of 25 high-risk countries face restrictions on shore leave due to security concerns in a post 9/11 environment. However, shore leave restrictions while in U.S. ports impact American seamen as well. For example, the International Organization of Masters, Mates & Pilots notes a trend of U.S. shipping terminal operators restricting seamen from traveling from the ship to the terminal gate. Further, in cases where transit is allowed, special "security fees" are at times assessed.

Such restrictions on shore leave coupled with reduced time in port by many ships translate into longer periods at sea. Mariners report that extended periods at sea living and working with shipmates who for the most part are strangers takes getting used to. At the same time, there is an opportunity to meet people from other ethnic and cultural backgrounds. Recreational opportunities have improved aboard some U.S. ships, which may feature gyms and day rooms for watching movies, swapping sea stories, and other activities. And in some cases, especially tankers, it is made possible for a mariner to be accompanied by members of his family. However, a mariner’s off duty time is largely a solitary affair, pursuing hobbies, reading, writing letters, and sleeping.

On modern ocean going vessels, typically registered with a flag of convenience, life has changed immensely in the last 20 years. Most large vessels include a gym and often a swimming pool for use by the crew. Since the Exxon Valdez incident, the focus of leisure time activity has shifted from having officer and crew bars, to simply having lounge-style areas where officers or crew can sit to watch movies. With many companies now providing TVs and DVD players in cabins, and enforcing strict smoking policies, it is not surprising that the bar is now a much quieter place on most ships. In some instances games consoles are provided for the officers and crew. The officers enjoy a much higher standard of living on board ocean going vessels. Crews are generally poorly paid, poorly qualified and have to complete contracts of approx 9 months before returning home on leave. They often come from countries where the average industrial wage is still very low, such as the Philippines or India. Officers however, come from all over the world and it is not uncommon to mix the nationality of the officers on board ships. Officers are often the recipients of university degrees and have completed vast amounts of training in order to reach their rank. Officers benefit on board by having larger, more comfortable cabins, table service for their meals, etc. Contracts average at the 4 month mark for officers, with generous leave. Most Ocean going vessels now operate an Unmanned Engineroom System allowing engineers to work days only. The engine room is computer controlled by night, although the duty engineer will make inspections during unmanned operation. Engineers work in a hot, humid, noisy atmosphere. Communication in the engineroom is therefore by hand signals and lip-reading, and good teamwork often stands in place of any communication at all

Wednesday, January 26, 2011

RMS Titanic

RMS Titanic was the largest passenger steamship in the world when she set off on her maiden voyage from Southampton, England, to New York City on 10 April 1912. Four days into the crossing, at 23:40 on 14 April 1912, she struck an iceberg and sank at 2:20 the following morning, resulting in the deaths of 1,517 people in one of the deadliest peacetime maritime disasters in history.
An Olympic-class passenger liner, RMS Titanic was owned by the White Star Line and constructed at the Harland and Wolff shipyard in Belfast, Ireland. She set sail for New York City with 2,227 people on board. The high casualty rate when the ship sank was due in part to the fact that, although complying with the regulations of the time, the ship carried lifeboats for only 1,178 people. A disproportionate number of men died due to the women and children first protocol that was followed.
Titanic was designed by some of the most experienced engineers, and used some of the most advanced technologies available at the time. It was a great shock to many that, despite the extensive safety features, Titanic sank, and the fact that it sank on its maiden voyage added to the particularly ironic nature of the tragedy. The frenzy on the part of the media about Titanic's famous victims, the legends about the sinking, the resulting changes to maritime law, and the discovery of the wreck have contributed to the interest in Titanic.
Contents[hide]
Construction
Main article: Olympic class ocean liner
Titanic was built at the Harland and Wolff shipyard in Belfast, in the UK, and designed to compete with the rival Cunard Line's Lusitania and Mauretania. Titanic, along with her Olympic-class sisters, Olympic and the soon-to-be-built Britannic (which was to be called Gigantic at first), were intended to be the largest, most luxurious ships ever to operate. The designers were Lord Pirrie,[8] a director of both Harland and Wolff and White Star, naval architect Thomas Andrews, Harland and Wolff's construction manager and head of their design department,[9] and Alexander Carlisle, the shipyard's chief draughtsman and general manager.[10] Carlisle's responsibilities included the decorations, the equipment and all general arrangements, including the implementation of an efficient lifeboat davit design. Carlisle would leave the project in 1910, before the ships were launched, when he became a shareholder in Welin Davit & Engineering Company Ltd, the firm making the davits.[11]
Construction of RMS Titanic, funded by the American J.P. Morgan and his International Mercantile Marine Co., began on 31 March 1909. Titanic's hull was launched on 31 May 1911, and her outfitting was completed by 31 March the following year. Her length overall was 882 feet 9 inches (269.1 m), the moulded breadth 92 feet 0 inches (28.0 m),[12] the tonnage 46,328 GRT, and the height from the water line to the boat deck of 59 feet (18 m). She was equipped with two reciprocating four-cylinder, triple-expansion steam engines and one low-pressure Parsons turbine, each driving a propeller. There were 29 boilers fired by 159 coal burning furnaces that made possible a top speed of 23 knots (43 km/h; 26 mph). Only three of the four 62 feet (19 m) funnels were functional: the fourth, which served only for ventilation, was added to make the ship look more impressive. The ship could carry a total of 3,547 passengers and crew.
Features

Gymnasium aboard Titanic

The first-class Grand Staircase aboard Olympic

Size comparison with the Airbus A380, a bus, a car, and an average-sized human
Titanic surpassed all her rivals in luxury and opulence. The First-class section had an on-board swimming pool, a gymnasium, a squash court, Turkish bath, Electric bath and a Verandah Cafe. First-class common rooms were adorned with ornate wood panelling, expensive furniture and other decorations. In addition, the CafĂ© Parisien offered cuisine for the first-class passengers, with a sunlit veranda fitted with trellis decorations.[13] There were libraries and barber shops in both the first and second-class.[14] The third class general room had pine panelling and sturdy teak furniture.[15] The ship incorporated technologically advanced features for the period. She had three electric elevators in first class and one in second class. She had also an extensive electrical subsystem with steam-powered generators and ship-wide wiring feeding electric lights and two Marconi radios, including a powerful 1,500-watt set manned by two operators working in shifts, allowing constant contact and the transmission of many passenger messages.[16] First-class passengers paid a hefty fee for such amenities. The most expensive one-way trans-Atlantic passage was £875 (£64,204 as of 2011),[17] or $4,375 ($99,237 as of 2011),[18].
Lifeboats
For her maiden voyage, Titanic carried a total of 20 lifeboats of three different varieties:[19]
Lifeboats 1 and 2: emergency wooden cutters: 25'2" long by 7'2" wide by 3'2" deep; capacity 326.6 cubic feet (9.25 m3) or 40 people.[20]
Lifeboats 3 to 16: wooden lifeboats: 30' long by 9'1" wide by 4' deep; capacity 655.2 cubic feet (18.55 m3) or 65 people.[20]
Lifeboats A, B, C and D: Englehardt "collapsible" lifeboats: 27'5" long by 8' wide by 3' deep; capacity 376.6 cubic feet (10.66 m3) or 47 people.[20]
The lifeboats were predominantly stowed in chocks on the boat deck, connected to the falls of the davits. All of the lifeboats, including the collapsibles, were placed on the ship by the giant gantry crane at Belfast. Those on the starboard side were odd-numbered 1–15 from bow to stern, while those on the port side were even-numbered 2–16 from bow to stern. The emergency cutters (lifeboats 1 and 2) were kept swung out, hanging from the davits, ready for immediate use while collapsible lifeboats C and D were stowed on the boat deck immediately in-board of boats 1 and 2 respectively. Collapsible lifeboats A and B were stored on the roof of the officers' quarters, on either side of number 1 funnel. However there were no davits mounted on the officers' quarters to lower collapsibles A and B and they weighed a considerable amount empty. During the sinking, lowering collapsibles A and B proved difficult as it was first necessary to slide the boats on timbers and/or oars down to the boat deck. During this procedure, collapsible B capsized and subsequently floated off the ship upside down.[20]
At the design stage Carlisle suggested that Titanic use a new, larger type of davit, manufactured by the Welin Davit & Engineering Co Ltd, each of which could handle four lifeboats. Sixteen sets of these davits were installed, giving Titanic the ability to carry 64[21] wooden lifeboats—a total capacity of over 4,000 people, compared with Titanic's total carrying capacity of about 3,600 passengers and crew. However, the White Star Line, while agreeing to the new davits, decided that only 16 wooden lifeboats (16 being the minimum required by the Board of Trade, based on Titanic's projected tonnage) would be carried (there were also four folding lifeboats, called collapsibles), which could accommodate only 1,178 people (33% of Titanic's total capacity). At the time, the Board of Trade's regulations stated that British vessels over 10,000 tons must carry 16 lifeboats with a capacity of 5,500 cubic feet (160 m3), plus enough capacity in rafts and floats for 75% (or 50% in case of a vessel with watertight bulkheads) of that in the lifeboats. Therefore, the White Star Line actually provided more lifeboat accommodation than was legally required.[22]
The regulations had made no extra provision for larger ships since 1894, when the largest passenger ship under consideration was the Cunard Line's Lucania, only 13,000 tons. Sir Alfred Chalmers, nautical adviser to the Board of Trade from 1896 to 1911, had considered the matter "from time to time", but because he thought that experienced sailors would have to be carried "uselessly" aboard ship for no other purpose than lowering and manning lifeboats, and the difficulty he anticipated in getting away a greater number than 16 in any emergency, he "did not consider it necessary to increase [our scale]".[23]
Carlisle told the official inquiry that he had discussed the matter with J. Bruce Ismay, White Star's Managing Director, but in his evidence Ismay denied that he had ever heard of this, nor did he recollect noticing such provision in the plans of the ship he had inspected.[11][24] Ten days before the maiden voyage Axel Welin, the maker of Titanic's lifeboat davits, had announced that his machinery had been installed because the vessel's owners were aware of forthcoming changes in official regulations, but Harold Sanderson, vice-president of the International Mercantile Marine and former general manager of the White Star Line, denied that this had been the intention.[25]