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Brummer-class Cruiser
The ''Brummer'' class consisted of two light mine-laying cruisers built for the Imperial German Navy in World War I: and . When the war broke out, the Germans had only two older mine-laying cruisers. Although most German cruisers were fitted for mine-laying, a need for fast specialized ships existed. The Imperial Russian Navy had ordered sets of steam turbines for the first two ships of the s from the AG Vulcan shipyard in Stettin. This machinery was confiscated on the outbreak of war and used for these ships. Both vessels were built by AG Vulcan. The two ships laid a series of minefields during their career, though their most significant success came in October 1917, when they attacked a British convoy to Norway. They sank two escorting destroyers and nine of the twelve merchant ships from the convoy. They escaped back to Germany without damage. The two ships were interned at Scapa Flow after the end of the war, and were subsequently scuttled by their crews on 21 June 1919. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
AG Vulcan Stettin
Aktien-Gesellschaft Vulcan Stettin (short AG Vulcan Stettin) was a German shipbuilding and locomotive building company. Founded in 1851, it was located near the former eastern German city of Stettin, today Polish Szczecin. Because of the limited facilities in Stettin, in 1907 an additional yard was built in Hamburg. The now named Vulcan-Werke Hamburg und Stettin Actiengesellschaft constructed some of the most famous civilian German ships and it played a significant role in both World Wars, building warships for the Kaiserliche Marine and the Kriegsmarine later. Both yards became members of the Deschimag in the 1920s. The Stettin shipyard was closed in 1928, opened again in 1939. During World War II it exploited slave workers, and after the war, was taken over by the Polish government, while the Hamburg yard was sold to Howaldtswerke AG in 1930 and the ''Locomotive Department'' was sold to in Berlin History A.G. Vulcan Stettin was founded 1851 as Schiffswerft und Maschinenfabr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Destroyer
In naval terminology, a destroyer is a fast, manoeuvrable, long-endurance warship intended to escort larger vessels in a fleet, convoy or battle group and defend them against powerful short range attackers. They were originally developed in 1885 by Fernando Villaamil for the Spanish NavySmith, Charles Edgar: ''A short history of naval and marine engineering.'' Babcock & Wilcox, ltd. at the University Press, 1937, page 263 as a defense against torpedo boats, and by the time of the Russo-Japanese War in 1904, these "torpedo boat destroyers" (TBDs) were "large, swift, and powerfully armed torpedo boats designed to destroy other torpedo boats". Although the term "destroyer" had been used interchangeably with "TBD" and "torpedo boat destroyer" by navies since 1892, the term "torpedo boat destroyer" had been generally shortened to simply "destroyer" by nearly all navies by the First World War. Before World War II, destroyers were light vessels with little endurance for unattended o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alfred Von Tirpitz
Alfred Peter Friedrich von Tirpitz (19 March 1849 – 6 March 1930) was a German grand admiral, Secretary of State of the German Imperial Naval Office, the powerful administrative branch of the German Imperial Navy from 1897 until 1916. Prussia never had a major navy, nor did the other German states before the German Empire was formed in 1871. Tirpitz took the modest Imperial Navy and, starting in the 1890s, turned it into a world-class force that could threaten Britain's Royal Navy. However, during World War I, his High Seas Fleet proved unable to end Britain's command of the sea and its chokehold on Germany's economy. The one great engagement at sea, the Battle of Jutland, ended in a narrow German tactical victory but a strategic failure. As the High Seas Fleet's limitations became increasingly apparent during the war, Tirpitz became an outspoken advocate for unrestricted submarine warfare, a policy which would ultimately bring Germany into conflict with the United States. By ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Saint Petersburg
Saint Petersburg ( rus, links=no, Санкт-Петербург, a=Ru-Sankt Peterburg Leningrad Petrograd Piter.ogg, r=Sankt-Peterburg, p=ˈsankt pʲɪtʲɪrˈburk), formerly known as Petrograd (1914–1924) and later Leningrad (1924–1991), is the second-largest city in Russia. It is situated on the Neva River, at the head of the Gulf of Finland on the Baltic Sea, with a population of roughly 5.4 million residents. Saint Petersburg is the fourth-most populous city in Europe after Istanbul, Moscow and London, the most populous city on the Baltic Sea, and the world's northernmost city of more than 1 million residents. As Russia's Imperial capital, and a historically strategic port, it is governed as a federal city. The city was founded by Tsar Peter the Great on 27 May 1703 on the site of a captured Swedish fortress, and was named after apostle Saint Peter. In Russia, Saint Petersburg is historically and culturally associated with t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Screw Propeller
A propeller (colloquially often called a screw if on a ship or an airscrew if on an aircraft) is a device with a rotating hub and radiating blades that are set at a pitch to form a helical spiral which, when rotated, exerts linear thrust upon a working fluid such as water or air. Propellers are used to pump fluid through a pipe or duct, or to create thrust to propel a boat through water or an aircraft through air. The blades are specially shaped so that their rotational motion through the fluid causes a pressure difference between the two surfaces of the blade by Bernoulli's principle which exerts force on the fluid. Most marine propellers are screw propellers with helical blades rotating on a propeller shaft with an approximately horizontal axis. History Early developments The principle employed in using a screw propeller is derived from sculling. In sculling, a single blade is moved through an arc, from side to side taking care to keep presenting the blade to the water at t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Parsons Marine Steam Turbine Company
Parsons Marine Steam Turbine Company was a British engineering company based on the River Tyne at Wallsend, North East England. History Charles Algernon Parsons founded the company in 1897 with £500,000 of capital. It specialised in building the steam turbine engines that he had invented for marine use. The first vessel powered by a Parsons turbine was ''Turbinia'', launched in 1894. The successful demonstration of this vessel led to the creation of the company and the building of engines for the first two turbine-powered destroyers for the Royal Navy, and , launched in 1899. Although both these vessels came to grief, the new engines were not to blame, and the Admiralty was convinced. Parsons' son became a director in the company and was replaced during the First World War by his daughter Rachel Parsons. Parsons turbines powered the Royal Navy's first turbine powered battleship, , and the world's first turbine ocean liners, and '' Virginian''. Parsons turbines powered the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kaiserliche Marine
{{italic title The adjective ''kaiserlich'' means "imperial" and was used in the German-speaking countries to refer to those institutions and establishments over which the ''Kaiser'' ("emperor") had immediate personal power of control. The term was used particularly in connexion with the Roman-German Emperor as sovereign of the Holy Roman Empire and with the subsequent Empire of Austria. In the Early Modern Period the term is linked with the universal precedence of the ''Kaiser'' over the other princes of the realm. Holders of an imperial or ''kaiserliche'' office were recruited from the whole empire, and had wide-ranging privileges in the territories. Examples of military, political and cultural institutions with ''kaiserliche'' players in the Holy Roman Empire are the: * ''Kaiserliche Armee'' ( Imperial Army) and * ''Kaiserliche Reichspost'' (Imperial Post Office) of the Roman-German Emperor (to 1806) (Habsburg, only 1742–1745 Wittelsbach) * ''kaiserliches Hofgestüt'' (Im ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reichsmarineamt
The Imperial Naval Office (german: Reichsmarineamt) was a government agency of the German Empire. It was established in April 1889, when the German Imperial Admiralty was abolished and its duties divided among three new entities: the Imperial Naval High Command (''Kaiserliches Oberkommando der Marine''), the Imperial Naval Cabinet (''Kaiserliches Marinekabinett'') and the Imperial Naval Office performing the functions of a ministry for the Imperial German Navy. Structure and tasks According to the 1871 Constitution of the German Empire, the federal states were responsible for the German land forces and the imperial government for the navy. So while there were Prussian, Bavarian, Saxon and Württemberg armies, there was a single Imperial Navy, the only formation under the direct authority of the German Reich beside the colonial ''Schutztruppe'' forces. The head of the Naval Office was a Secretary of State who reported directly to the Imperial Chancellor (''Reichskanzler''). W ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Steam Turbine
A steam turbine is a machine that extracts thermal energy from pressurized steam and uses it to do mechanical work on a rotating output shaft. Its modern manifestation was invented by Charles Parsons in 1884. Fabrication of a modern steam turbine involves advanced metalwork to form high-grade steel alloys into precision parts using technologies that first became available in the 20th century; continued advances in durability and efficiency of steam turbines remains central to the energy economics of the 21st century. The steam turbine is a form of heat engine that derives much of its improvement in thermodynamic efficiency from the use of multiple stages in the expansion of the steam, which results in a closer approach to the ideal reversible expansion process. Because the turbine generates rotary motion, it can be coupled to a generator to harness its motion into electricity. Such turbogenerators are the core of thermal power stations which can be fueled by fossil-fuels, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
AG Vulcan
Aktien-Gesellschaft Vulcan Stettin (short AG Vulcan Stettin) was a German shipbuilding and locomotive building company. Founded in 1851, it was located near the former eastern German city of Stettin, today Polish Szczecin. Because of the limited facilities in Stettin, in 1907 an additional yard was built in Hamburg. The now named Vulcan-Werke Hamburg und Stettin Actiengesellschaft constructed some of the most famous civilian German ships and it played a significant role in both World Wars, building warships for the Kaiserliche Marine and the Kriegsmarine later. Both yards became members of the Deschimag in the 1920s. The Stettin shipyard was closed in 1928, opened again in 1939. During World War II it exploited slave workers, and after the war, was taken over by the Polish government, while the Hamburg yard was sold to Howaldtswerke AG in 1930 and the ''Locomotive Department'' was sold to in Berlin History A.G. Vulcan Stettin was founded 1851 as Schiffswerft und Maschinenfabr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lyness
Lyness is a village on the east coast of the island of Hoy, Orkney, Scotland. The village is within the parish of Walls and Flotta, and is situated at the junction of the B9047 and B9048. During the 1920s Lyness was briefly the headquarters of the metal salvage firm of Cox and Danks's raising of the German High Seas Fleet, scuttled by the Germans on 21 June 1919 during the Armistice (Scuttling of the German fleet in Scapa Flow). During the Second World War it was home to HMS Proserpine, the main base for the naval fleet based at Scapa Flow. Today an Orkney Ferries Ro-Ro car ferry links it to Longhope on South Walls, the island of Flotta in Scapa Flow, and Houton on Mainland, Orkney. Naval Cemetery Lyness Royal Naval Cemetery was opened in 1915 primarily to serve the Scapa Flow base (which closed in 1946). Buried there are 445 Empire and Commonwealth service personnel, chiefly Royal Navy, from World War I (109 of whom are unidentified) and 200 from World War II (8 unidentified) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cox & Danks
Cox may refer to: * Cox (surname), including people with the name Companies * Cox Enterprises, a media and communications company ** Cox Communications, cable provider ** Cox Media Group, a company that owns television and radio stations ** Cox Automotive, an Atlanta-based business unit of Cox Enterprises * Cox Models, aka Cox Hobbies * Cox Sports, a regional sports network that served the United States New England region until 2012 Places Antarctica * Cox Glacier * Cox Nunatak * Cox Peaks * Cox Point * Cox Reef United States * Cox, Florida * Cox, Missouri * Cox College (Georgia), a defunct private women's college located in College Park, Georgia * Cox College (Missouri), a private college in Springfield, Missouri * Cox Furniture Store, c. 1890, a historic site in Gainesville, Florida * Cox Furniture Warehouse, a historic site in Gainesville, Florida * Cox Run, a tributary of Little Muncy Creek in Lycoming County, Pennsylvania * Cox site Elsewhere * Cox Island, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
