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S138-class Torpedo Boat
The ''S138'' class was a group of sixty-five torpedo boats built for the German ''Kaiserliche Marine'' (Imperial Navy) and the Ottoman Navy in the early 1900s. Almost all of the boats served with the German fleet, with only four being sold to the Ottoman Empire in 1910. The German and Ottoman boats saw action in World War I, and several were lost. One Ottoman boat successfully torpedoed and sank a British battleship in 1915. In 1917 and 1918, the German members of the class were all renamed to replace the builder prefix with a standardized "T" prefix. Following Germany's defeat, many of the members of the ''S138'' class were scrapped, either after having been seized as war prizes by the victorious Allied powers or by Germany to comply with the naval disarmament clauses of the Treaty of Versailles. Some boats continued in German service through World War II, after which the surviving vessels were all seized as war prizes. Design General characteristics and machinery The boats of t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Schichau-Werke
The Schichau-Werke (F. Schichau, Maschinen- und Lokomotivfabrik, Schiffswerft und Eisengießerei GmbH) was a German engineering works and shipyard based in Elbing, Germany (now Elbląg, Poland) on the Frisches Haff (Vistula Lagoon) of then-East Prussia. It also had a subsidiary shipyard in nearby Danzig (now: Gdańsk, Poland). Due to the Soviet conquest of eastern Germany, Schichau moved to Bremerhaven in March 1945, and its successors continued in business until 2009. Early years Ferdinand Schichau had studied engineering in Berlin, the Rheinland and Great Britain. In 1837, he founded the engineering institution, later known as F. Schichau GmbH, Maschinen- und Lokomotivfabrik (F. Schichau engineering and locomotive factory) in Elbing. It started with the production of hydraulic presses and diggers; in 1860, it began to produce locomotives for the Prussian Eastern Railway. From 1867 locomotive construction began in earnest, and three years later, the factory was connected to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Length Overall
__NOTOC__ Length overall (LOA, o/a, o.a. or oa) is the maximum length of a vessel's hull measured parallel to the waterline. This length is important while docking the ship. It is the most commonly used way of expressing the size of a ship, and is also used for calculating the cost of a marina berth (for example, £2.50 per metre LOA). LOA is usually measured on the hull alone. For sailing ships, this may ''exclude'' the bowsprit and other fittings added to the hull. This is how some racing boats and tall ships use the term LOA. However, other sources may include bowsprits in LOA. Confusingly, LOA has different meanings. "Sparred length", "Total length including bowsprit", "Mooring length" and "LOA including bowsprit" are other expressions that might indicate the full length of a sailing ship. LOD Often used to distinguish between the length of a vessel including projections (e.g. bow sprits, etc.) from the length of the hull itself, the Length on Deck or LOD is often repor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zoelly
Heinrich Zoelly (1862–1937) was a Mexican-Swiss engineer. He developed steam turbines and turbine-driven locomotives and patented the geothermal heat pump in 1912. Life and work Heinrich Zoelly was the fifth child of Franz Xaver Zoelly. His father, originally from Germany near Klettgau, had emigrated to Mexico to seek better fortune. Heinrich was born in Mexico and received the Mexican citizenship. His father ran a hat factory in Mexico City with his brother John. When Henry was still a child, his father left Mexico because of political unrest and returned to Europe and settled in Switzerland. There, Henry attended primary school, skipping two grades before starting at the Federal Polytechnic Institute (which later became ETH Zurich). He was just 20 years old when he earned his degree in mechanical engineering. After study trips to Mexico and Paris, Heinrich Zoelly went back to Switzerland in 1886. Two years later Zoelly applied in Fluntern for naturalization and became a Swi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
AEG (German Company)
; AEG) was a German producer of electrical equipment. It was founded in 1883 by Emil Rathenau as the ''Deutsche Edison-Gesellschaft für angewandte Elektricität'' in Berlin. The company's initial focus was driven by electrical lighting, as in 1881, Rathenau had acquired the rights to the electric light bulb at the International Exposition of Electricity in Paris. Using small power stations, his company introduced electrical lighting to cafés, restaurants, and theaters, despite the high costs and limitations. By the end of the 19th century, AEG had constructed 248 power stations, providing a total of 210,000 hp of electricity for lighting, tramways, and household devices. During the Second World War, AEG worked with the Nazi Party and benefited from forced labour from concentration camps. After World War II, its headquarters moved to Frankfurt am Main. In 1967, AEG joined with its subsidiary Telefunken AG, creating ''Allgemeine Elektricitäts-Gesellschaft AEG-Telefunk ... [...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] |
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] |
Triple Expansion Engine
A steam engine is a heat engine that performs mechanical work using steam as its working fluid. The steam engine uses the force produced by steam pressure to push a piston back and forth inside a cylinder. This pushing force can be transformed, by a connecting rod and crank, into rotational force for work. The term "steam engine" is generally applied only to reciprocating engines as just described, not to the steam turbine. Steam engines are external combustion engines, where the working fluid is separated from the combustion products. The ideal thermodynamic cycle used to analyze this process is called the Rankine cycle. In general usage, the term ''steam engine'' can refer to either complete steam plants (including boilers etc.), such as railway steam locomotives and portable engines, or may refer to the piston or turbine machinery alone, as in the beam engine and stationary steam engine. Although steam-driven devices were known as early as the aeolipile ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Travemünde Damals – Hochseeflotte – Kohlebeschaffung
Travemünde () is a borough of Lübeck, Germany, located at the mouth of the river Trave in Lübeck Bay. It began life as a fortress built by Henry the Lion, Duke of Saxony, in the 12th century to guard the mouth of the Trave, and the Danes subsequently strengthened it. It became a town in 1317 and in 1329 passed into the possession of the free city of Lübeck, to which it has since belonged. Its fortifications were demolished in 1807. Travemünde has been a seaside resort since 1802, and is Germany's largest ferry port on the Baltic Sea with connections to Sweden, Finland, Russia, Latvia and Estonia. The lighthouse is the oldest on the German Baltic coast, dating from 1539. Another attraction of Travemünde is the Flying P-Liner ''Passat'', a museum ship anchored in the mouth of the Trave. The annual Travemünder Woche is a traditional sailing race week in Northern Europe. The annual Sand festival in Travemünde is known as the Sand World. Literature The 19th century seaside ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dinghy
A dinghy is a type of small boat, often carried or towed by a larger vessel for use as a tender. Utility dinghies are usually rowboats or have an outboard motor. Some are rigged for sailing but they differ from sailing dinghies, which are designed first and foremost for sailing. A dinghy's main use is for transfers from larger boats, especially when the larger boat cannot dock at a suitably-sized port or marina. The term "dinghy towing" sometimes is used to refer to the practice of towing a car or other smaller vehicle behind a motorhome, by analogy to towing a dinghy behind a yacht. Etymology The term is a loanword from the Bengali ', Urdu ', and Hindi '. Types Dinghies usually range in length from about . Larger auxiliary vessels are generally called tenders, pinnaces or lifeboats. Folding and take-down multi-piece (nesting) dinghies are used where space is limited. Some newer dinghies have much greater buoyancy, giving them more carrying capacity than older ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yawl
A yawl is a type of boat. The term has several meanings. It can apply to the rig (or sailplan), to the hull type or to the use which the vessel is put. As a rig, a yawl is a two masted, fore and aft rigged sailing vessel with the mizzen mast positioned abaft (behind) the rudder stock, or in some instances, very close to the rudder stock. This is different from a ketch, where the mizzen mast is forward of the rudder stock. The sail area of the mizzen on a yawl is consequentially proportionately smaller than the same sail on a ketch. As a hull type, yawl may refer to many types of open, clinker-built, double-ended, traditional working craft that operated from the beaches of Britain and Ireland. These boats are considered to be linked to the Viking or Nordic design tradition. Most of these types are now extinct, but they include the Norfolk and Sussex Beach Yawls (called "yols" by the men who crewed them), which were probably the fastest-sailing open boats ever built. A yawl is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flagship
A flagship is a vessel used by the commanding officer of a group of naval ships, characteristically a flag officer entitled by custom to fly a distinguishing flag. Used more loosely, it is the lead ship in a fleet of vessels, typically the first, largest, fastest, most heavily armed, or best known. Over the years, the term "flagship" has become a metaphor used in industries such as broadcasting, automobiles, education, technology, airlines, and retail to refer to their highest profile or most expensive products and locations. Naval use In common naval use, the term ''flagship'' is fundamentally a temporary designation; the flagship is wherever the admiral's flag is being flown. However, admirals have always needed additional facilities, including a meeting room large enough to hold all the captains of the fleet and a place for the admiral's staff to make plans and draw up orders. Historically, only larger ships could accommodate such requirements. The term was also used by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Watertight Compartment
A compartment is a portion of the space within a ship defined vertically between decks and horizontally between bulkheads. It is analogous to a room within a building, and may provide watertight subdivision of the ship's hull important in retaining buoyancy if the hull is damaged. Subdivision of a ship's hull into watertight compartments is called compartmentation. History Bulkhead watertight compartments were originally invented by the Chinese. These compartments strengthened the junks and slowed flooding in case of holing during the Han and Song dynasties. The wide application of Chinese watertight compartments soon spread to the Europeans through the Indian and Arab merchants. The economics of early unsinkable passenger ships was scrutinized in an 1882 Scientific American article. Watertight subdivision Watertight subdivision limits loss of buoyancy and freeboard in the event of damage, and may protect vital machinery from flooding. Most ships have some pumping capacit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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