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Amur-class Minelayer (1898)
The ''Amur''-class minelayers were the first purpose-built, ocean-going minelayers in the world.Russian Minelayers ''Amur'' and ''Yenisei'', p. 205 The class consisted of two vessels: ''Amur'' and ''Yenisei''. Both ships were constructed for the Imperial Russian Navy in the late 1890s. During the Russo-Japanese War of 1904–05 they were assigned to the Pacific Fleet. ''Yenisei'' struck one of her own mines two days after the war began while laying a minefield and sank. One of ''Amur''s minefields sank the Japanese pre-dreadnought battleships and . ''Amur'' was sunk by Japanese howitzers in December 1904 after the Japanese had gained control of the heights around Port Arthur. She was later salvaged and scrapped by the Japanese. Design and description The ''Amur''-class minelayers were designed to drop their mines while at high speed and were given a pronounced, overhanging, stern that allowed the mines to be dropped behind the propellers through doors in the stern. Each door ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Baltic Works
The OJSC Baltic Shipyard (''Baltiysky Zavod'', formerly Shipyard 189 named after Grigoriy Ordzhonikidze) (russian: Балтийский завод имени С. Орджоникидзе) is one of the oldest shipyards in Russia and is part of United Shipbuilding Corporation today. It is located in Saint Petersburg in the south-western part of Vasilievsky Island. It is one of the three shipyards active in Saint Petersburg. Together with the Admiralty Shipyard it has been responsible for building many Imperial Russian battleships as well as Soviet nuclear-powered icebreakers. Currently it specializes in merchant ships while the Admiralty yard specializes in diesel-electric submarines. In addition, it is responsible for construction of Russian floating nuclear power stations. History The shipyard was founded in 1856 by the St. Petersburg merchant M. Carr and the Scotsman Murdoch. L. MacPherson. It subsequently became the Carr and MacPherson yard. In 1864 it built two monitors ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lüshunkou District
Lüshunkou District (also Lyushunkou District; ) is a district of Dalian, Liaoning province, China. Also formerly called Lüshun City () or literally Lüshun Port (), it was formerly known as both Port Arthur (russian: Порт-Артур, translit=Port-Artur) and Ryojun ( ja, 旅順). The district's area is and its permanent population is 324,773. Lüshunkou is located at the extreme southern tip of the Liaodong Peninsula. It has an excellent natural harbor, the possession and control of which became a ''casus belli'' of the Russo-Japanese War (1904–05). Japanese and then Russian administration was established in 1895 and continued until 1905 when control was ceded to Japan. During that period, it was world-famous and was more significant than the other port on the peninsula, Dalian proper. Toponym In English-language diplomatic, news, and historical writings, it was known as Port Arthur after a British Royal Navy Lieutenant named William Arthur who surveyed the harbor in t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Founder
Founder or Founders may refer to: Places *Founders Park, a stadium in South Carolina, formerly known as Carolina Stadium * Founders Park, a waterside park in Islamorada, Florida Arts, entertainment, and media * Founders (''Star Trek''), the alien leaders of the fictional state and military superpower, the Dominion, in ''Star Trek'' * ''The Founder'' (newspaper), the student newspaper at Royal Holloway, University of London * ''The Founder'', a 2016 biographical feature film about McDonald's pioneer Ray Kroc Companies and organizations * Founder Group, a Chinese information technology and pharmaceutical conglomerate ** Founder Technology, a Shanghai subsidiary * Founders Brewing Company, a craft brewery located in Grand Rapids, Michigan, United States * Founders Ministries, Christian group in the United States * Worshipful Company of Founders, a livery company based in London, England, United Kingdom Roles * Organizational founder, the person or group of persons responsible for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Protected Cruiser
Protected cruisers, a type of naval cruiser of the late-19th century, gained their description because an armoured deck offered protection for vital machine-spaces from fragments caused by shells exploding above them. Protected cruisers resembled armored cruisers, which had in addition a belt of armour along the sides. Evolution From the late 1850s, navies began to replace their fleets of wooden ships-of-the-line with armoured ironclad warships. However, the frigates and sloops which performed the missions of scouting, commerce raiding and trade protection remained unarmoured. For several decades, it proved difficult to design a ship which had a meaningful amount of protective armour but at the same time maintained the speed and range required of a "cruising warship". The first attempts to do so, armored cruisers like , proved unsatisfactory, generally lacking enough speed for their cruiser role. During the 1870s the increasing power of armour-piercing shells made ar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dalian Bay
Dalian Bay (), known historically as Talienwan, Talien-wan and Talien-hwan, is a bay on the southeast side of the Liaodong Peninsula () of Northeast China, open to the Korea Bay in the Yellow Sea () in the east. Downtown Dalian lies along the southern shore of the bay. Its significance is that it is ice-free year-round, while Jinzhou Bay () on the other, northwest side of the peninsula is part of the Bohai Sea (), and is shallow and closed by ice for four months of the winter. The bay was the rendezvous point for the British fleet for the 1860 assault on China during the Second Opium War, which resulted in the naming of the naval fortress Port Arthur (now Lüshunkou District, Dalian). In 1879, about 20 small islands with their bays around Dalian were named Dalian Bay and barbettes for military use were built after that. By the end of the First Sino-Japanese War of 1894–1895, most of the barbettes were discarded and a fishery industry started quickly. Now only six barbettes re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Battle Of Port Arthur
The of 8–9 February 1904 marked the commencement of the Russo-Japanese War. It began with a surprise night attack by a squadron of Japanese destroyers on the neutral Russian fleet anchored at Port Arthur, Manchuria, and continued with an engagement the following morning; further skirmishing off Port Arthur would continue until May 1904. The attack ended inconclusively, though the war resulted in a decisive Japanese victory. Background The opening stage of the Russo-Japanese War began with pre-emptive strikes by the Imperial Japanese Navy (IJN) against the Russian Pacific Fleet based at Port Arthur and at Chemulpo. Admiral Tōgō's initial plan was to swoop down upon Port Arthur with the 1st Division of the Combined Fleet, consisting of the six pre-dreadnought battleships , , , , and , led by the flagship , and the 2nd Division, consisting of the armored cruisers , , , , and . These capital ships and cruisers were accompanied by some 15 destroyers and around 20 sma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hotchkiss Gun
The Hotchkiss gun can refer to different products of the Hotchkiss arms company starting in the late 19th century. It usually refers to the 1.65-inch (42 mm) light mountain gun; there were also a navy (47 mm) and a 3-inch (76 mm) Hotchkiss guns. The 42 mm gun was intended to be mounted on a light carriage or packed on two mules to accompany a troop of cavalry or an army travelling in rough country. Descriptions 1.65-inch gun The gun and accessories could be packed on two mules. The gun was introduced as a modern replacement for the aging twelve-pounder mountain howitzer. The first gun purchased by the U.S. military from the French arms firm of Hotchkiss was employed against the Nez Percé in 1877. Over the next twenty years the U.S. purchased 56. They were used at the Wounded Knee Massacre in 1890, and again in Cuba at the Battle of Las Guasimas, the Battle of El Caney and the attack on San Juan Hill during the Spanish–American War of 1898. H ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Caliber (artillery)
In artillery, caliber or calibredifference in British English and American English spelling is the internal diameter of a gun barrel, or - by extension - a relative measure of the barrel length. Rifled barrels Rifled barrels introduce ambiguity to measurement of caliber. A rifled bore consists of alternating grooves and lands. The distance across the bore from groove to groove is greater than the distance from land to land. Projectiles fired from rifled barrels must be of the full groove to groove diameter to be effectively rotated by the rifling, but the caliber has sometimes been specified as the land to land diameter before rifling grooves were cut. The depth of rifling grooves (and the consequent ambiguity) increases in larger calibers. Steel artillery projectiles may have a forward bourrelet section machined to a diameter slightly smaller than the original land to land dimension of the barrel and a copper driving band somewhat larger than the groove to groove diameter ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Naval Ram
A ram was a weapon fitted to varied types of ships, dating back to antiquity. The weapon comprised an underwater prolongation of the bow of the ship to form an armoured beak, usually between 2 and 4 meters (6–12 ft) in length. This would be driven into the hull of an enemy ship to puncture, sink or disable it. Ancient rams It was possibly developed in late Bronze age Egypt, but it only became widely used in later Iron age Mediterranean galleys. The ram was a naval weapon in the Greek/Roman antiquity and was used in such naval battles as Salamis and Actium. Naval warfare in the Mediterranean rarely used sails, and the use of rams specifically required oarsmen rather than sails in order to maneuver with accuracy and speed, and particularly to reverse the movement of a ramming ship to disentangle it from its sinking victim, lest it be pulled down when its victim sank. The Athenians were especially known for their '' diekplous'' and '' periplous'' tactics that disabled enemy shi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Draft (hull)
The draft or draught of a ship's hull is the vertical distance between the waterline and the bottom of the hull (keel). The draught of the vessel is the maximum depth of any part of the vessel, including appendages such as rudders, propellers and drop keels if deployed. Draft determines the minimum depth of water a ship or boat can safely navigate. The related term air draft is the maximum height of any part of the vessel above the water. The more heavily a vessel is loaded, the deeper it sinks into the water, and the greater its draft. After construction, the shipyard creates a table showing how much water the vessel displaces based on its draft and the density of the water (salt or fresh). The draft can also be used to determine the weight of cargo on board by calculating the total displacement of water, accounting for the content of the ship's bunkers, and using Archimedes' principle. The closely related term "trim" is defined as the difference between the forward and aft ... [...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 Hull may refer to: Structures * Chassis, of an armored fighting vehicle * Fuselage, of an aircraft * Hull (botany), the outer covering of seeds * Hull (watercraft), the body or frame of a ship * Submarine hull Mathematics * Affine hull, in affi ..., 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 fro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Length At The Waterline
A vessel's length at the waterline (abbreviated to L.W.L)Note: originally Load Waterline Length is the length of a ship or boat at the level where it sits in the water (the ''waterline''). The LWL will be shorter than the length of the boat overall (''length overall'' or LOA) as most boats have bows and stern protrusions that make the LOA greater than the LWL. As a ship becomes more loaded, it will sit lower in the water and its ambient waterline length may change; but the registered L.W.L it is measured from a default load condition. This measure is significant in determining several of a vessel's properties, such as how much water it displaces, where the bow and stern waves occur, hull speed, amount of bottom-paint needed, etc. Traditionally, a stripe called the "boot top" is painted around the hull just above the waterline. In sailing boats, longer waterline length will usually enable a greater maximum speed, because it allows greater sail area, without increasing beam or d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
