|
Hector-class Ironclad
The ''Hector''-class ironclads were a pair of armoured frigates built for the Royal Navy (RN) in the 1860s. was completed in 1864 and assigned to the Channel Fleet until she began a refit in 1867. 's builder went bankrupt, delaying her launching by a year. The ship then had to wait almost another five years to receive her guns and be commissioned. Both ships were assigned to the Reserve Fleet from 1868 until they were paid off in 1885–1886. They were mobilized during the Russo-Turkish War of 1877–1878, but saw no action. They were hulked in the late 1890s and assigned to shore establishments. ''Hector'' was scrapped in 1905, but ''Valiant'' was converted into a floating oil tank in 1926; she was sold for scrap thirty years later. Design and description The ''Hector''-class ironclads, like their immediate predecessors, the , were designed as smaller and cheaper versions of the armoured frigates. They were modified versions of the ''Defence'' class with additional armour a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brassey's Naval Annual
''The Naval Annual'' was a Periodical literature, periodical that provided considerable text and graphic information (largely concerning the British Royal Navy) which had previously been obtainable only by consulting a wide range of often foreign language publications. During its life it underwent a number of title changes. The ''Annual'' was started by Thomas Brassey, 1st Earl Brassey, in 1886. Though often compared with ''Jane's Fighting Ships'', the two British annuals were, in fact quite different. The Brassey series began a dozen years earlier, and its special strength was the dozen or more detailed articles on naval (plus, from 1920 through 1935, merchant marine) matters, authored by experts. They covered British and other nations' naval developments ranging from the latest ships to overall policy. The first five or six Brassey volumes used a second printing colour (a light blue green) to highlight armored portions of naval vessels' hulls. Through 1949, the series wa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bankrupt
Bankruptcy is a legal process through which people or other entities who cannot repay debts to creditors may seek relief from some or all of their debts. In most jurisdictions, bankruptcy is imposed by a court order, often initiated by the debtor. Bankrupt is not the only legal status that an insolvent person may have, meaning the term ''bankruptcy'' is not a synonym for insolvency. Etymology The word ''bankruptcy'' is derived from Italian , literally meaning . The term is often described as having originated in Renaissance Italy, where there allegedly existed the tradition of smashing a banker's bench if he defaulted on payment. However, the existence of such a ritual is doubted. History In Ancient Greece, bankruptcy did not exist. If a man owed and he could not pay, he and his wife, children or servants were forced into " debt slavery" until the creditor recouped losses through their physical labour. Many city-states in ancient Greece limited debt slavery to a perio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Engine Room
On a ship, the engine room (ER) is the Compartment (ship), compartment where the machinery for marine propulsion is located. The engine room is generally the largest physical compartment of the machinery space. It houses the vessel's prime mover, usually some variations of a heat engine (Marine steam engine, steam engine, diesel engine, Gas turbine, gas or steam turbine). On some ships, there may be more than one engine room, such as forward and aft, or port or starboard engine rooms, or may be simply numbered. To increase a vessel's safety and chances of surviving damage, the machinery necessary for the ship's operation may be segregated into various spaces. The engine room is usually located near the bottom, at the rear or aft end of the vessel, and comprises few compartments. This design maximizes the cargo carrying capacity of the vessel and situates the prime mover close to the propeller, minimizing equipment cost and problems posed from long shaft lines. On some ships, the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Double Bottom
A double hull is a ship hull design and construction method where the bottom and sides of the ship have two complete layers of watertight hull surface: one outer layer forming the normal hull of the ship, and a second inner hull which is some distance inboard, typically by a few feet, which forms a redundant barrier to seawater in case the outer hull is damaged and leaks. The space between the two hulls is sometimes used for storage of ballast water. Double hulls are a more extensive safety measure than double bottoms, which have two hull layers only in the bottom of the ship but not the sides. In low-energy collisions, double hulls can prevent flooding beyond the penetrated compartment. In high-energy collisions, however, the distance to the inner hull is not sufficient and the inner compartment is penetrated as well. Double hulls or double bottoms have been required in all passenger ships for decades as part of the Safety Of Life At Sea or SOLAS Convention. Uses Double hul ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Draft (hull)
The draft or draught of a ship is a determined depth of the vessel below the waterline, measured vertically to its hull's lowest—its propellers, or keel, or other reference point. Draft varies according to the loaded condition of the ship. A deeper draft means the ship will have greater vertical depth below the waterline. Draft is used in under keel clearance calculations, where the draft is calculated with the available depth of water (from Electronic navigational charts) to ensure the ship can navigate safely, without grounding. Navigators can determine their draught by calculation or by visual observation (of the ship's painted load lines). Related terminology A ship's draft/draught is the "depth of the vessel below the waterline measured vertically to the lowest part of the hull, propellers, or other reference point". That is, the draft or draught is the maximum depth of any part of the vessel, including appendages such as rudders, propellers and drop keels if de ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Beam (nautical)
The beam of a ship is its width at its widest point. The maximum beam (BMAX) is the distance between planes passing through the outer sides of the ship, beam of the hull (BH) only includes permanently fixed parts of the hull, and beam at waterline (BWL) is the maximum width where the hull intersects the surface of the water. Generally speaking, the wider the beam of a ship (or boat), the more initial stability it has, at the expense of secondary stability in the event of a capsize, where more energy is required to right the vessel from its inverted position. A ship that heels on her ''beam ends'' has her deck beams nearly vertical. Typical values Typical length-to-beam ratios ( aspect ratios) for small sailboats are from 2:1 (dinghies to trailerable sailboats around ) to 5:1 (racing sailboats over ). Large ships have widely varying beam ratios, some as large as 20:1. Rowing shells designed for flatwater racing may have length to beam ratios as high as 30:1, while a cora ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Length Between Perpendiculars
Length between perpendiculars (often abbreviated as p/p, p.p., pp, LPP, LBP or Length BPP) is the length of a ship along the summer load line from the forward surface of the stem, or main bow perpendicular member, to the after surface of the sternpost, or main stern perpendicular member. When there is no sternpost, the centerline axis of the rudder stock is used as the aft end of the length between perpendiculars. Measuring to the stern post or rudder stock was believed to give a reasonable idea of the ship’s carrying capacity, as it excluded the small, often unusable volume contained in its overhanging ends. On some types of vessels this is, for all practical purposes, a waterline measurement. In a ship with raked stems, naturally that length changes as the draught of the ship changes, therefore it is measured from a defined loaded condition. See also * Length overall Length overall (LOA, o/a, o.a. or oa) is the maximum length of a vessel's hull measured parallel to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ship Breaking
Ship breaking (also known as ship recycling, ship demolition, ship scrapping, ship dismantling, or ship cracking) is a type of ship disposal involving the breaking up of ships either as a source of Interchangeable parts, parts, which can be sold for re-use, or for the extraction of raw materials, chiefly scrap. Modern ships have a lifespan of 25 to 30 years before corrosion, Fatigue (material), metal fatigue and a lack of parts render them uneconomical to operate. Ship-breaking allows the materials from the ship, especially steel, to be recycled and made into new products. This lowers the demand for mined iron ore and reduces energy use in the steelmaking process. Fixtures and other equipment on board the vessels can also be reused. While ship-breaking is sustainable, there are concerns about its use by poorer countries without stringent environmental legislation. It is also labour-intensive, and considered one of the world's most dangerous industries. In 2012, roughly 1,250 oce ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shore Establishment
A stone frigate is a naval establishment on land. 'Stone frigate' is an informal term which has its origin in Britain's Royal Navy (RN), after its use of Diamond Rock, an island off Martinique, as a ' sloop of war' to harass the French in 1803–1804. The Royal Navy was prohibited from ruling over land, so the land was commissioned as a ship. The command of this first stone frigate was given to Commodore Hood's first lieutenant, James Wilkes Maurice, who, with cannon taken off the Commodore's ship, manned it with a crew of 120 until its capture by the French in the Battle of Diamond Rock in 1805. Until the late 19th century, the Royal Navy housed training and other support facilities in hulks; old wooden ships of the line, moored in ports as receiving ships, depot ships, or floating barracks. The Admiralty regarded shore accommodation as expensive, and liable to lead to indiscipline. As ships began to use increasingly complex technology during the late 19th centur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hulk (ship Type)
A hulk is a ship that is afloat, but incapable of going to sea. 'Hulk' may be used to describe a ship that has been launched but not completed, an abandoned wreck or shell, or a ship whose propulsion system is no longer maintained or has been removed altogether. The word hulk also may be used as a verb: a ship is "hulked" to convert it to a hulk. The verb was also applied to crews of Royal Navy ships in dock, who were sent to the receiving ship for accommodation, or "hulked". Hulks have a variety of uses such as housing, prisons, salvage pontoons, gambling sites, naval training, or cargo storage. In the age of sail, many hulls served longer as hulks than they did as functional ships. Wooden ships were often hulked when the hull structure became too old and weak to withstand the stresses of sailing. More recently, ships have been hulked when they become obsolete or when they become uneconomical to operate. Sheer hulk A ''sheer hulk'' (or ''shear hulk'') was used in shipbuildi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Russo-Turkish War (1877–1878)
The Russo-Turkish War (1877–1878) was a conflict between the Ottoman Empire and a coalition led by the Russian Empire which included United Principalities of Moldavia and Wallachia, Romania, Principality of Serbia, Serbia, and Principality of Montenegro, Montenegro. Precipitating factors included the Russian goals of recovering territorial losses endured during the Crimean War of 1853–1856, re-establishing itself in the Black Sea and supporting the political movement attempting to free Balkan nations from the Ottoman Empire. The Romanian army had around 114,000 soldiers in the war. In Romania the war is called the Russo-Romanian-Turkish War (1877–1878) or the Romanian War of Independence, Romanian War of Independence (1877–1878). The Russian-led coalition won the war, pushing the Ottomans back all the way to the gates of Constantinople, leading to the intervention of the Western European great powers. As a result, Russia succeeded in claiming provinces in the Caucasus, n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ship Decommissioning
Ship commissioning is the act or ceremony of placing a ship in active service and may be regarded as a particular application of the general concepts and practices of project commissioning. The term is most commonly applied to placing a warship in active duty with its country's military forces. The ceremonies involved are often rooted in centuries-old naval tradition. Ship naming and launching endow a ship hull with her identity, but many milestones remain before it is completed and considered ready to be designated a commissioned ship. The engineering plant, weapon and electronic systems, galley, and other equipment required to transform the new hull into an operating and habitable warship are installed and tested. The prospective commanding officer, ship's officers, the petty officers, and seamen who will form the crew report for training and familiarization with their new ship. Before commissioning, the new ship undergoes sea trials to identify any deficiencies needing correc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
