|
Japanese Submarine I-124
''I-124'', originally named ''Submarine Minelayer No. 52'' and then named ''I-24'' from before her launch until June 1938, was an of the Imperial Japanese Navy that served during the Second Sino-Japanese War and World War II. During the latter conflict, she operated in support of the Japanese invasion of the Philippines and was sunk during anti-shipping operations off Australia in January 1942. After she was renumbered ''I-124'' in 1938, the number ''I-24'' was assigned to a later submarine which also served during World War II. Design ''I-124'' and her three sister ships — ''I-21'' (later renumbered ), ''I-22'' (later renumbered ) and ''I-23'' (later renumbered ) — were the Imperial Japanese Navy's only submarine minelayers.Boyd and Yoshida, p. 18. They were known in Japan by the type name , commonly shortened to . The ''Kiraisen''-type design was based on that of the Imperial German Navy minelaying submarine , a Type UB III submarine which was the largest of seven Ge ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kawasaki Shipbuilding Corporation
is the shipbuilding subsidiary of Kawasaki Heavy Industries. It produces primarily specialized commercial vessels, including LNG carriers, LPG carriers, container ships, bulk carriers, oil tankers, as well as high speed passenger jetfoils. In addition, it is also a producer of warships for the Japan Maritime Self-Defense Force, including submarines. Kawasaki also produces marine machinery, including marine engines, thrusters, steering gears, deck and fishing machinery. History Kawasaki's origins go back to April 1878, when Shozo Kawasaki established Kawasaki Tsukiji Shipyard in Tokyo with the support of fellow Satsuma domain, Satsuma native and Ministry of Finance (Japan), Vice Minister of Finance, Matsukata Masayoshi. In 1886, Kawasaki established a second shipyard in Kobe, Hyōgo prefecture. With the First Sino-Japanese War, the two shipyards were flooded with new orders and ship repair requests. The two shipyards were merged in 1896 as the Kawasaki Dockyard Company, Ltd. Rea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Imperial German Navy
The Imperial German Navy or the ''Kaiserliche Marine'' (Imperial Navy) was the navy of the German Empire, which existed between 1871 and 1919. It grew out of the small Prussian Navy (from 1867 the North German Federal Navy), which was mainly for coast defence. Wilhelm II, Kaiser Wilhelm II greatly expanded the navy. The key leader was Admiral Alfred von Tirpitz, who greatly expanded the size and quality of the navy, while adopting the Command of the sea, sea power theories of American strategist Alfred Thayer Mahan. The result was a Anglo-German naval arms race, naval arms race with Britain, as the German navy grew to become one of the greatest maritime forces in the world, second only to the Royal Navy. The German surface navy proved ineffective during the First World War; its only major engagement, the Battle of Jutland, was a draw, but it kept the surface fleet largely in port for the rest of the war. The submarine fleet was greatly expanded and threatened the British supply s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reserve Fleet
A reserve fleet is a collection of naval vessels of all types that are fully equipped for service but are not currently needed; they are partially or fully Ship decommissioning, decommissioned. A reserve fleet is informally said to be "in mothballs" or "mothballed". In earlier times, especially in British usage, the ships were said to be "laid up in ordinary". A reserve fleet may be colloquially referred to as a "ghost fleet". In the 21st century, ghost fleet may also refer to an active shadow fleet of aged reserve fleet Oil tanker, oil tankers returned to an active service in order to circumvent commodities sanctions. Overview Such ships are held in reserve against a time when it may be necessary to call them back into service. They are usually tied up in backwater areas near naval bases or shipyards in order to speed the reactivation process. They may be modified for storage during such a period, for instance by having rust-prone areas sealed off or wrapped in plastic or, in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ballast Tank
A ballast tank is a Compartment (ship), compartment within a boat, ship or other floating structure that holds water, which is used as ballast to provide hydrostatic stability for a vessel, to reduce or control buoyancy, as in a submarine, to correct Trim (vessel), trim or Angle of list, list, to provide a more even load distribution along the hull to reduce structural Hogging and sagging, hogging or sagging stresses, or to increase Draft (hull), draft, as in a semi-submersible vessel or platform, or a SWATH, to improve seakeeping. Using water in a tank provides easier weight adjustment than the stone or iron ballast used in older vessels, and makes it easy for the crew to reduce a vessel's Draft (hull), draft when it enters shallower water, by temporarily pumping out ballast. Airships use ballast tanks mainly to control buoyancy and correct trim. History The concept of ballast tanks, inspired by nature, can be seen in aquatic life forms like blowfish and the argonaut octopus, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Japanese Submarine I-123
''I-123'', originally named ''Submarine No. 50'' then renamed ''I-23'' from before her construction began until June 1938, was an of the Imperial Japanese Navy that served during the Second Sino-Japanese War and World War II. During the latter conflict, she conducted operations in support of the Japanese invasion of the Philippines, the Battle of Midway, the Guadalcanal campaign, and the Battle of the Eastern Solomons. She was sunk in 1942. After she was renumbered ''I-123'' in 1938, the designation ''I-23'' was reassigned to a later submarine which also served during World War II. Design ''I-123'' and her three sister ships — ''I-21'' (later renumbered ), ''I-22'' (later renumbered ), and ''I-24'' (later renumbered ) — were the Imperial Japanese Navy's only submarine minelayers.Boyd and Yoshida, p. 18. They were known in Japan by the type name , commonly shortened to . The ''Kiraisen''-type design was based on that of the Imperial German Navy minelaying submarine , a T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Division (naval)
A naval division is a sub-division of a squadron or flotilla of a navy. It can also be a sub-division of a fleet. A division is the smallest naval formation, most commonly numbering between two and four ships. Command element A division is usually commanded by senior flag officer, most commonly a vice admiral or rear admiral, irrespective of the division's size. For example, in the Imperial Japanese Navy, the First Carrier Division was commanded by a rear or vice admiral, same as the 18th Cruiser Division. Division types Divisions are most commonly grouped by ship class A ship class is a group of ships of a similar design. This is distinct from a ship type, which might reflect a similarity of tonnage or intended use. For example, is a nuclear aircraft carrier (ship type) of the (ship class). In the course o ... and type, dependent on how the respective nation's navy is organised. Examples of division types include: See also * BatDiv * Destroyer squadron Refe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yokosuka Naval District
was the first of four main administrative districts of the pre-war Imperial Japanese Navy. Its territory included Tokyo Bay and the Pacific Ocean, Pacific coasts of central and northern Honshū from the Kii Peninsula to Shimokita Peninsula. Its headquarters, along with most of its installations, including the Yokosuka Naval Arsenal, were located in the city of Yokosuka (city), Yokosuka, which constituted the Yokosuka Naval Base. History The location of Yokosuka (city), Yokosuka at the entrance to strategic Tokyo Bay was recognized of critical importance by the Tokugawa shogunate and early Meiji government. In 1866, the Tokugawa shogunate government established the ''Yokosuka Seisakusho'', a military arsenal and naval base, with the help of o-yatoi gaikokujin, foreign engineers, including the France, French naval architect Léonce Verny. The new facility was intended to produce modern, western-style warships and equipment for the Tokugawa navy. After the Boshin War and the Meiji Re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ship Commissioning
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 Electronics, electronic systems, Galley (kitchen), 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 a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Keel-laying
Laying the keel or laying down is the formal recognition of the start of a ship's construction. It is often marked with a ceremony attended by dignitaries from the shipbuilding company and the ultimate owners of the ship. Keel laying is one of the four specially celebrated events in a ship's life; the others are launching, commissioning, and decommissioning. Earlier, the event recognized as the keel laying was the initial placement of the central timber making up the backbone of a vessel, called the keel. As steel ships replaced wooden ones, the central timber gave way to a central steel beam. Modern ships are most commonly built in a series of pre-fabricated, complete hull sections rather than around a single keel. The event recognized as the keel laying is the first joining of modular components, or the lowering of the first module into place in the building dock. It is now often called "keel authentication" and is the ceremonial beginning of the ship's life, although s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Torpedo
A modern torpedo is an underwater ranged weapon launched above or below the water surface, self-propelled towards a target, with an explosive warhead designed to detonate either on contact with or in proximity to the target. Historically, such a device was called an automotive, automobile, locomotive, or fish torpedo; colloquially, a ''fish''. The term ''torpedo'' originally applied to a variety of devices, most of which would today be called mines. From about 1900, ''torpedo'' has been used strictly to designate a self-propelled underwater explosive device. While the 19th-century battleship had evolved primarily with a view to engagements between armored warships with large-caliber guns, the invention and refinement of torpedoes from the 1860s onwards allowed small torpedo boats and other lighter surface vessels, submarines/submersibles, even improvised fishing boats or frogmen, and later light aircraft, to destroy large ships without the need of large guns, though somet ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diesel Engine
The diesel engine, named after the German engineer Rudolf Diesel, is an internal combustion engine in which Combustion, ignition of diesel fuel is caused by the elevated temperature of the air in the cylinder due to Mechanics, mechanical Compression (physics), compression; thus, the diesel engine is called a 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). Introduction Diesel engines work by compressing only air, or air combined with 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 air temperature inside the Cylinder (engine), cylinder so that atomised diesel fuel injected into the combustion chamber ignites. The torque a dies ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
World War I
World War I or the First World War (28 July 1914 – 11 November 1918), also known as the Great War, was a World war, global conflict between two coalitions: the Allies of World War I, Allies (or Entente) and the Central Powers. Fighting took place mainly in European theatre of World War I, Europe and the Middle Eastern theatre of World War I, Middle East, as well as in parts of African theatre of World War I, Africa and the Asian and Pacific theatre of World War I, Asia-Pacific, and in Europe was characterised by trench warfare; the widespread use of Artillery of World War I, artillery, machine guns, and Chemical weapons in World War I, chemical weapons (gas); and the introductions of Tanks in World War I, tanks and Aviation in World War I, aircraft. World War I was one of the List of wars by death toll, deadliest conflicts in history, resulting in an estimated World War I casualties, 10 million military dead and more than 20 million wounded, plus some 10 million civilian de ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
