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Japanese Destroyer Niizuki
''Niizuki'' was an destroyer of the Imperial Japanese Navy. Design and description The ''Akizuki''-class ships were originally designed as anti-aircraft escorts for carrier battle groups, but were modified with torpedo tubes and depth charges to meet the need for more general-purpose destroyer. Her crew numbered 300 officers and enlisted men. The ships measured overall, with a beam of and a draft of . They displaced at standard load and at deep load. The ship had two Kampon geared steam turbines, each driving one propeller shaft, using steam provided by three Kampon water-tube boilers. The turbines were rated at a total of for a designed speed of . The ship carried up to of fuel oil which gave them a range of at a speed of . The main armament of the ''Akizuki'' class consisted of eight Type 98 dual purpose guns in four twin-gun turrets, two superfiring pairs fore and aft of the superstructure. They carried four Type 96 anti-aircraft guns in two twin-gun mounts. Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Empire Of Japan
The also known as the Japanese Empire or Imperial Japan, was a historical nation-state and great power that existed from the Meiji Restoration in 1868 until the enactment of the post-World War II 1947 constitution and subsequent formation of modern Japan. It encompassed the Japanese archipelago and several colonies, protectorates, mandates, and other territories. Under the slogans of and following the Boshin War and restoration of power to the Emperor from the Shogun, Japan underwent a period of industrialization and militarization, the Meiji Restoration, which is often regarded as the fastest modernisation of any country to date. All of these aspects contributed to Japan's emergence as a great power and the establishment of a colonial empire following the First Sino-Japanese War, the Boxer Rebellion, the Russo-Japanese War, and World War I. Economic and political turmoil in the 1920s, including the Great Depression, led to the rise of militarism, nationa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Water-tube Boiler
A high pressure watertube boiler (also spelled water-tube and water tube) is a type of boiler in which water circulates in tubes heated externally by the fire. Fuel is burned inside the furnace, creating hot gas which boils water in the steam-generating tubes. In smaller boilers, additional generating tubes are separate in the furnace, while larger utility boilers rely on the water-filled tubes that make up the walls of the furnace to generate steam. The heated water/steam mixture then rises into the steam drum. Here, saturated steam is drawn off the top of the drum. In some services, the steam passes through tubes in the hot gas path, (a superheater) to become superheated. Superheated steam is defined as steam that is heated above the boiling point at a given pressure. Superheated steam is a dry gas and therefore is typically used to drive turbines, since water droplets can severely damage turbine blades. Saturated water at the bottom of the steam drum returns to the lower drum ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
RV Petrel
RV ''Petrel'', or R/V ''Petrel'' (IMO: 9268629, MMSI: 235102789), is a research vessel owned by the estate of Microsoft co-founder Paul Allen. The ship is named after the sea bird petrel. In 2016, Allen purchased the offshore service vessel formerly named ''Seven Petrel'' from Subsea 7, a subsea engineering, construction, and services company. In 2017, the ship completed an extensive retrofitting to become a deep-submergence research vessel. It is the only privately owned vessel in the world equipped to explore depths. It also serves as a testing bed for new deep-sea equipment that has never been deployed on any other ship. Philanthropy The primary mission of the ship, which is fully funded by Allen's estate, is to explore historically significant wrecks at challenging depths and conditions. A precondition set by Allen is for discovered wrecks to be respected as war graves and their locations kept secret, but known to only national governments and museums. In the PBS documenta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Destroyer Squadron
A destroyer squadron is a Squadron (naval), naval squadron or flotilla usually consisting of destroyers rather than other types of vessel. In some navies other vessels, such as frigates, may be included. In English the word "squadron" tends to be used for larger and "flotilla" for smaller vessels; both may be used for destroyer units. Similar formations are used in non-English-speaking countries, e.g., the "escadrille"—which would translate directly as "squadron"—in France. Royal Navy The Royal Navy began to form units of destroyers after the introduction of 'torpedo boat destroyers' in the early 1900s though pre-World War Two they were usually designated flotillas. RN destroyer units are listed in the main article above examples of some destroyer squadrons below. * 1st Destroyer Squadron (United Kingdom), 1st Destroyer Squadron, 1947-1970 * 2nd Destroyer Squadron (United Kingdom), 2nd Destroyer Squadron, 1956-1971 * 3rd Destroyer Squadron (United Kingdom), 3rd Destroyer Squa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cruiser
A cruiser is a type of warship. Modern cruisers are generally the largest ships in a fleet after aircraft carriers and amphibious assault ships, and can usually perform several roles. The term "cruiser", which has been in use for several hundred years, has changed its meaning over time. During the Age of Sail, the term ''cruising'' referred to certain kinds of missions—independent scouting, commerce protection, or raiding—fulfilled by frigates or sloops-of-war, which functioned as the ''cruising warships'' of a fleet. In the middle of the 19th century, ''cruiser'' came to be a classification of the ships intended for cruising distant waters, for commerce raiding, and for scouting for the battle fleet. Cruisers came in a wide variety of sizes, from the medium-sized protected cruiser to large armored cruisers that were nearly as big (although not as powerful or as well-armored) as a pre-dreadnought battleship. With the advent of the dreadnought battleship before World W ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kula Gulf
Kula Gulf is a waterway in the Western Province of the Solomon Islands. It lies between the islands of Kolombangara to the west, Arundel Island (Kohinggo) to the southwest, and New Georgia to the south and east. To the north, it opens into New Georgia Sound ("the Slot"). To the southwest, it connects via Blackett Strait to Vella Gulf and the Solomon Sea. During the Solomon Islands campaign in World War II, two minor naval battles between the Imperial Japanese Navy and the United States Navy were fought here in July, 1943. The first was the Battle of Kula Gulf fought on the night of 5–6 July 1943. In that engagement, the cruiser was sunk. The second battle was the Battle of Kolombangara The Battle of Kolombangara (Japanese: コロンバンガラ島沖海戦) (also known as the Second Battle of Kula Gulf) was a naval battle of the Pacific campaign of World War II, fought on the night of 12/13 July 1943, off the northeastern coas ... fought on the night of 12–13 July 1943. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kolombangara
Kolombangara (sometimes spelled ''Kulambangara'') is an island in the New Georgia Islands group of the nation state of Solomon Islands in the southwestern Pacific Ocean. The name is from a local language, a rough translation of its meaning is "Water Lord" with approximately 80 rivers and streams running down its flanks. Geography Almost perfectly round in shape and about across, the island is a stratovolcano that reaches an altitude of at Mount Veve. The island forms part of the southern boundary of the New Georgia Sound; to the northwest the Vella Gulf separates it from Vella Lavella and Gizo, while to the southeast New Georgia lies across the Kula Gulf. West-southwest of Kolombangara is Ghizo Island, upon which the Western provincial capital Gizo is located. The island is heavily forested, with few inhabitants. There are two notable settlements, Ringgi and Mongga, the former being the larger. The most significant industry on the island is logging, principally based at ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tokyo Express
The Tokyo Express was the name given by Allied forces to the use of Imperial Japanese Navy ships at night to deliver personnel, supplies, and equipment to Japanese forces operating in and around New Guinea and the Solomon Islands during the Pacific campaign of World War II. The operation involved loading personnel or supplies aboard fast warships (mainly destroyers), later submarines, and using the warships' speed to deliver the personnel or supplies to the desired location and return to the originating base all within one night so Allied aircraft could not intercept them by day. Name The original name of the resupply missions was "The Cactus Express", coined by Allied forces on Guadalcanal, who used the code name "Cactus" for the island. After the U.S. press began referring to it as the "Tokyo Express," apparently in order to preserve operational security for the code word, Allied forces also began to use the phrase. The Japanese themselves called the night resupply missions ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anti-aircraft Gun
Anti-aircraft warfare, counter-air or air defence forces is the battlespace response to aerial warfare, defined by NATO as "all measures designed to nullify or reduce the effectiveness of hostile air action".AAP-6 It includes surface based, subsurface ( submarine launched), and air-based weapon systems, associated sensor systems, command and control arrangements, and passive measures (e.g. barrage balloons). It may be used to protect naval, ground, and air forces in any location. However, for most countries, the main effort has tended to be homeland defence. NATO refers to airborne air defence as counter-air and naval air defence as anti-aircraft warfare. Missile defence is an extension of air defence, as are initiatives to adapt air defence to the task of intercepting any projectile in flight. In some countries, such as Britain and Germany during the Second World War, the Soviet Union, and modern NATO and the United States, ground-based air defence and air defence aircraf ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Superstructure
A superstructure is an upward extension of an existing structure above a baseline. This term is applied to various kinds of physical structures such as buildings, bridges, or ships. Aboard ships and large boats On water craft, the superstructure consists of the parts of the ship or a boat, including sailboats, fishing boats, passenger ships, and submarines, that project above her main deck. This does not usually include its masts or any armament turrets. Note that in modern times, turrets do not always carry naval artillery, but they can also carry missile launchers and/or antisubmarine warfare weapons. The size of a watercraft's superstructure can have many implications in the performance of ships and boats, since these structures can alter their structural rigidity, their displacements, and/or stability. These can be detrimental to any vessel's performance if they are taken into consideration incorrectly. The height and the weight of superstructure on board a ship or a bo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Superfiring
Superfiring armament is a naval military building technique in which two (or more) turrets are located in a line, one behind the other, with the second turret located above ("super") the one in front so that the second turret can fire over the first. This configuration meant that both forward or aft turrets could fire at any target within their sector, even when the target was in the same vertical plane as the turrets. History The history of large surface warships follow generic labels as battleships, and a further distinction between pre-dreadnoughts and dreadnoughts. The era of technical evolution occurred roughly from 1900 to 1945. Part of the technical evolution was driven by the need to compress as much large-gun firepower into the smallest space possible. In early designs, the large-caliber turrets were all located on the same plane firing to one side or the other. In firing ahead or to the rear, usually only the forward-most or rearmost turret could fire, especially a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
