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Taiyō-class Escort Carrier
The was a group of three escort carriers used by the Imperial Japanese Navy (IJN) during World War II. Two of the ships were built as cargo liners in the late 1930s and subsequently taken over by the IJN and converted into escort carriers, while the third ship was converted while still under construction. The first ship converted, , ferried aircraft and supplies to Japanese possessions before the start of the Pacific War in December 1941 and also served as a training ship between transport missions. Once the war began she did much the same for the newly conquered areas. Her sister ship, did much the same in 1942. , the last of the three to be converted, only ferried aircraft between Japan and the naval base at Truk before she was sunk by an American submarine in December 1943. Her sisters sometimes had other destinations other than Truk in 1943, but it was also their primary destination until they were damaged by American submarines in late 1943 or early 1944. After finishing ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Japanese Aircraft Carrier Taihō
was an aircraft carrier of the Imperial Japanese Navy during World War II. Possessing heavy belt armor and featuring an armored flight deck (a first for any Japanese aircraft carrier), she represented a major departure from prior Japanese aircraft carrier design and was expected to not only survive multiple bomb, torpedo, or shell hits, but also continue fighting effectively afterwards. Built by Kawasaki at Kobe, she was laid down on 10 July 1941, launched almost two years later on 7 April 1943 and finally commissioned on 7 March 1944. She sank on 19 June 1944 during the Battle of the Philippine Sea due to explosions resulting from design flaws and poor damage control after suffering a single torpedo hit from the American submarine USS ''Albacore''. Design ''Taihō'' was approved for construction in the 1939 4th Supplementary Programme. Her design was that of a modified . Under the Modified Fleet Replenishment Program of 1942, ''Taihō'' was to be the first of a new generat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flush Deck
Flush deck is a term in naval architecture. It can refer to any deck of a ship which is continuous from stem to stern. History The flush deck design originated with rice ships built in Bengal Subah, Mughal India (modern Bangladesh), resulting in hulls that were stronger and less leak-prone than stepped deck ships.. This was a key innovation in shipbuilding. The British East India Company duplicated the flush deck design in the 1760s, leading to significant improvements in seaworthiness of British ships during the Industrial Revolution. Two different meanings of "flush" "Flush deck" with "flush" in its generic meaning of "even or level; forming an unbroken plane", is sometimes applied to vessels, as in describing yachts lacking a raised pilothouse for instance. "Flush deck aircraft carrier" uses "flush deck" in this generic sense. "Flush deck" in its more specific maritime-architecture sense denotes (for instance) the flush deck destroyers described above: the flush decks are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diesel Engine
The diesel engine, named after Rudolf Diesel, is an internal combustion engine in which ignition of the fuel is caused by the elevated temperature of the air in the cylinder due to mechanical compression; thus, the diesel engine is a so-called compression-ignition engine (CI engine). This contrasts with engines using spark plug-ignition of the air-fuel mixture, such as a petrol engine (gasoline engine) or a gas engine (using a gaseous fuel like natural gas or liquefied petroleum gas). Diesel engines work by compressing only air, or air plus residual combustion gases from the exhaust (known as exhaust gas recirculation (EGR)). Air is inducted into the chamber during the intake stroke, and compressed during the compression stroke. This increases the air temperature inside the cylinder to such a high degree that atomised diesel fuel injected into the combustion chamber ignites. With the fuel being injected into the air just before combustion, the dispersion of the fuel is une ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Propeller Shaft
A drive shaft, driveshaft, driving shaft, tailshaft (Australian English), propeller shaft (prop shaft), or Cardan shaft (after Girolamo Cardano) is a component for transmitting mechanical power and torque and rotation, usually used to connect other components of a drivetrain that cannot be connected directly because of distance or the need to allow for relative movement between them. As torque carriers, drive shafts are subject to torsion and shear stress, equivalent to the difference between the input torque and the load. They must therefore be strong enough to bear the stress, while avoiding too much additional weight as that would in turn increase their inertia. To allow for variations in the alignment and distance between the driving and driven components, drive shafts frequently incorporate one or more universal joints, jaw couplings, or rag joints, and sometimes a splined joint or prismatic joint. History The term ''driveshaft'' first appeared during the mid-19th centu ... [...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 extremities 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 cor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sasebo Naval Arsenal
was one of four principal naval shipyards owned and operated by the Imperial Japanese Navy. History The Sasebo Naval District was established at Sasebo, Nagasaki in 1886, as the third of the naval districts responsible for the defense of the Japanese home islands. After the establishment of the navy base, a ship repair facility was established in 1889 with a dry dock. With the addition of equipment and facilities for ship production by 1897, the "Sasebo Shipyards" were officially established, and renamed the "Sasebo Naval Arsenal" in 1903. Construction of the arsenal was supervised by the French engineer Louis-Émile Bertin. In 1913, a 250-ton crane was installed, and the shipbuilding facilities expanded to permit the construction of large warships. With the mothballing of the Maizuru Naval Arsenal due to restrictions by the Washington Naval Treaty, much of the design and prototype work for new classes of destroyers and torpedo boats formerly done at Maizuru was shifted to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fitting Out
Fitting out, or outfitting, is the process in shipbuilding that follows the float-out/launching of a vessel and precedes sea trials. It is the period when all the remaining construction of the ship is completed and readied for delivery to her owners. Since most of the fitting-out process is interior work, this stage can overlap with latter stages, such as the sea trials. Launching or floating After a vessel has been floated (in contemporary shipbuilding) or launched (in traditional shipbuilding), it is then towed out of its drydock and moored at a fitting-out berth. While still afloat, its construction is then continued. Depending on the type of vessel, fitting-out can last weeks or many months. Vessels with comparatively little space for human occupation, such as oil tankers, bulk carriers and container ships, can take the least time for fitting. Conversely, passenger ships take the longest. The process can include: * completion of the superstructure, * installation of the shi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Osaka Shosen Kaisha
Mitsui O.S.K. Lines ( ja, 株式会社商船三井, Kabushiki-gaisha Shōsen Mitsui; abbreviated MOL) is a Japanese transport company headquartered in Toranomon, Minato, Tokyo, Japan. It is one of the largest shipping companies in the world. MOL fleet includes dry cargo ships (bulk carriers), liquefied natural gas carriers, Ro-Ro Car Carrier ships, oil tankers, container ships (among which mv MOL Triumph is the 4th largest containership in the world), and container terminals. Its alligator logo can still be seen on containers in ports, roads, rails and barges around the world, despite the company's focus on containers shipping has been reduced since April 2018. Founded as a key part of the Mitsui ''zaibatsu'' (family-owned conglomerate) during the early industrialization of Japan, the company is now independent of the zaibatsu, but remains part of the Mitsui ''keiretsu'' (group of aligned companies). Many heads of this company have wielded considerable power in Japan and abr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nippon Yusen Kaisha
Nippon Yūsen Kabushiki Kaisha (Japan Mail Shipping Line), also known as NYK Line, is a Japanese shipping company and is a member of the Mitsubishi '' keiretsu''. The company headquarters are located in Chiyoda, Tokyo, Japan. It operates a fleet of about 800 ships, which includes container ships, tankers, bulk and woodchip carriers, roll-on/roll-off car carriers, reefer vessels, LNG carriers, and cruise ships. Currently, it is a member of the Ocean Network Express company. History 1870-1900 The company traces its history back to the ''Tsukumo Shokai'' shipping company founded by the Tosa clan in 1870. In 1875, as the renamed ''Mitsubishi Shokai'', the company inaugurated Japan's first passenger liner service, with a route from Yokohama to Shanghai; in that same year, the company name was changed to Mitsubishi Mail Steamship Company. In 1885, a merger with ''Kyodo Unyu Kaisha'' (founded 1882) led to the adoption of the company's present name.NYKHistory./ref> The merged com ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shipping Line
A shipping line or shipping company is a company whose line of business is ownership and operation of ships. Shipping companies provide a method of distinguishing ships by different kinds of cargo: # Bulk cargo is a type of special cargo that is delivered and handled in large quantities. # General cargo, now known as break-bulk cargo, refers to a wide assortment of goods that may be delivered to several ports around the world. # Oil became a crucial part of the shipping industry in the early 20th century. Its use varied from lubrication for developed machinery, burning in boilers and industrial plants, as well as for operating engines. Oil is also primarily shipped by specific shipping companies as opposed to other forms of transportation. This is considered a type of special cargo. The shipping of oil has become a debated issue due to the environmental impacts of both oil spills and oil tankers. # Passenger cargo is the business of transporting people on shipping lines fo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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