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Röthelstein (icebreaker)
''Röthelstein'' is an Austrian river icebreaker owned by Verbund AG. She is used to break ice and push barges on the Danube river. Built by Kværner Masa-Yards in Finland in 1995, she was the first new vessel to be fitted with Azipod propulsion units. History In early 1994, Kværner Masa-Yards signed a contract worth about $4.3 million for the construction of a shallow-draft river icebreaker for the Austrian power company Österreichische Donaukraftwerke AG (today Verbund AG). The vessel would be fitted with a new type of propulsion system and, following extensive development work carried out by the shipyard's Arctic Research Centre, feature high icebreaking capability despite its small size and shallow draft.Kvaerner Builds Diesel-Electric Icebreaker, R ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Röthelstein
Röthelstein is a former municipality in the district of Graz-Umgebung in the Austrian state of Styria. Since the 2015 Styria municipal structural reform The Styria municipal structural reform (German: ''Steiermärkische Gemeindestrukturreform'') was a local government reform in the Austrian state of Styria, which was made effective January 1, 2015. The reform nearly halved the number of Styrian ..., it is part of the municipality Frohnleiten. Population References Graz Highlands Cities and towns in Graz-Umgebung District {{Styria-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aker Arctic
Aker Arctic Technology Oy (often shortened to Aker Arctic) is a Finnish engineering company that operates an ice model test basin in Helsinki. In addition to ship model testing, the company offers various design, engineering and consulting services related to icebreakers, other icegoing vessels and arctic offshore projects as well as full scale trials, field expeditions and training for icy conditions. Formerly the arctic research centre of Wärtsilä and later Masa-Yards, Aker Arctic was established on 30 December 2004 as an independent company. Its current owners are the Finnish Industry Investment and ABB. Aker Arctic and its predecessors have designed more than half of the world's icebreakers.Company . Aker Arctic. In addition, the company is responsible for a number of recent inventions in the design of icegoing ships, such as the [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1994 Ships
The year 1994 was designated as the "International Year of the Family" and the "International Year of Sport and the Olympic Charter, Olympic Ideal" by the United Nations. In the Line Islands and Phoenix Islands of Kiribati, 1994 had only 364 days, omitting December 31. This was due to an adjustment of the International Date Line by the Kiribati government to bring all of its territories into the same calendar day. Events January * January 1 ** The North American Free Trade Agreement (NAFTA) is established. ** Beginning of the Zapatista uprising in Mexico. * January 8 – ''Soyuz TM-18'': Valeri Polyakov begins his 437.7-day orbit of the Earth, eventually setting the world record for days spent in orbit. * January 11 – The Irish government announces the end of a 15-year broadcasting ban on the Provisional Irish Republican Army and its political arm Sinn Féin. * January 14 – U.S. President Bill Clinton and Russian President Boris Yeltsin sign the Kremlin accords, which ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Icebreakers Of Austria
An icebreaker is a special-purpose ship or boat designed to move and Ice navigation, navigate through ice-covered waters, and provide safe waterways for other boats and ships. Although the term usually refers to ice-breaking ships, it may also refer to smaller vessels, such as the icebreaking boats that were once used on the canals of the United Kingdom. For a ship to be considered an icebreaker, it requires three traits most normal ships lack: a strengthened Hull (watercraft), hull, an ice-clearing shape, and the power to push through sea ice. Icebreakers clear paths by pushing straight into frozen-over water or pack ice. The bending strength of sea ice is low enough that the ice breaks usually without noticeable change in the vessel's wikt:trim#Noun, trim. In cases of very thick ice, an icebreaker can drive its Bow (ship), bow onto the ice to break it under the weight of the ship. A buildup of broken ice in front of a ship can slow it down much more than the breaking of the i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Landing Craft
Landing craft are small and medium seagoing watercraft, such as boats and barges, used to convey a landing force (infantry and vehicles) from the sea to the shore during an amphibious assault. The term excludes landing ships, which are larger. Production of landing craft peaked during World War II, with a significant number of different designs produced in large quantities by the United Kingdom and United States. Because of the need to run up onto a suitable beach, World War II landing craft were flat-bottomed, and many designs had a flat front, often with a lowerable ramp, rather than a normal bow. This made them difficult to control and very uncomfortable in rough seas. The control point (too rudimentary to call a bridge on LCA and similar craft) was normally at the extreme rear of the vessel, as were the engines. In all cases, they were known by an abbreviation derived from the official name rather than by the full title. History In the days of sail, the ship's boats wer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ybbs An Der Donau
Ybbs an der Donau (, ; short: Ybbs; Central Bavarian: ''Ybbs aun da Donau'') is a town in Austria. It was established in 1317. Throughout the town, from the intersection of the important trade routes and along the Danube the town has preserved a site that already had great economic importance during the Middle Ages. Toponymy The valley of the Ybbs river is called: ''Ybbs Valley'', or ''Ybbs Field'' (). History In 788, Ybbs Field () was the site of a battle, between Franks and Avars. Railroad bridge was dive-bombed by 14th FG on 26 March 1945 at 1020 hrs; Direct hit on abutments, south approach cut, main line blocked. Coat of arms On a silver shield lies a red city wall with battlements that an open gate and raised portcullis, which are dominated by two towers. Between the towers floats a green Linden bough, and the red-white-red ''Bindenschild''. Colors: Red-White-Red Coat of Arms Bestowal: unknown; at least since the 14th century. International relations Twin towns — Si ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhine–Main–Danube Canal
The Rhine–Main–Danube Canal ( German: ''Rhein-Main-Donau-Kanal''; also called Main-Danube Canal, RMD Canal or Europa Canal), is a canal in Bavaria, Germany. Connecting the Main and the Danube rivers across the European Watershed, it runs from Bamberg via Nuremberg to Kelheim. The canal connects the North Sea and Atlantic Ocean to the Black Sea, providing a navigable artery between the Rhine delta (at Rotterdam in the Netherlands), and the Danube Delta in south-eastern Romania and south-western Ukraine (or Constanța, through the Danube–Black Sea Canal). The present canal was completed in 1992 and is long. Early history Projects for connecting the Danube and Rhine basins by canal have a long history. In 793, the Emperor Charlemagne ordered the construction of a canal—the '' Fossa Carolina'' (German: ''Karlsgraben'')—connecting the Swabian Rezat, a tributary of the Rednitz, to the Altmühl near Treuchtlingen. Between ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Double Acting Ship
A double acting ship is a type of icebreaking ship designed to travel forwards in open water and thin ice, but turn around and proceed astern (backwards) in heavy ice conditions. In this way, the ship can operate independently in severe ice conditions without icebreaker assistance but retain better open water performance than traditional icebreaking vessels.Juurmaa, K et al.: The development of the new double acting ships for ice operation. Kvaerner Masa-Yards Arctic Technology2001 an2002. Double acting ships carrying liquid cargo are generally referred as double acting tankers. In the early 1990s Kværner Masa-Yards Arctic Technology Centre (MARC) developed the concept for oil transportation between the Russian Arctic and Europe and the first double acting tanker, Finnish crude oil tanker ''Tempera'', was delivered in 2002. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pressure Ridge (ice)
A pressure ridge, when consisting of ice in an oceanic or coastal environment, is a linear pile-up of sea ice fragments formed in pack ice by accumulation in the convergence between floes. Such a pressure ridge develops in an ice cover as a result of a stress regime established within the plane of the ice. Within sea ice expanses, pressure ridges originate from the interaction between floes,A ''floe'' is any individual piece of sea ice larger than . as they collide with each other.Weeks, W. F. (2010) ''On sea ice''. University of Alaska Press, Fairbanks, 664 p. Currents and winds are the main driving forces, but the latter is particularly effective when they have a predominant direction. Pressure ridges are made up of angular ice blocks of various sizes that pile up on the floes. The part of the ridge that is above the water surface is known as the ''sail''; that below it as the ''keel''.These terms also apply to any floating ice feature, such as icebergs. Pressure ridges are the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gulf Of Bothnia
The Gulf of Bothnia (; ; ) is divided into the Bothnian Bay and the Bothnian Sea, and it is the northernmost arm of the Baltic Sea, between Finland's west coast ( East Bothnia) and the northern part of Sweden's east coast ( West Bothnia and North Bothnia). In the south of the gulf lies Åland, between the Sea of Åland and the Archipelago Sea. Name Bothnia is a latinization. The Swedish name was originally just , with being Old Norse for "gulf" or "bay", which is also the meaning of the second element . The name was applied to the Gulf of Bothnia as in Old Norse, after , which at the time referred to the coastland west of the gulf. Later, was applied to the regions of on the western side and on the eastern side ('West Bottom' and 'East Bottom'). The Finnish name of Österbotten, (, meaning 'land'), hint as to the meaning in both languages: the meaning of includes both 'bottom' and 'north'. is the base word for north, , with an adjectival suffix added. / is c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Baltic Sea
The Baltic Sea is an arm of the Atlantic Ocean that is enclosed by the countries of Denmark, Estonia, Finland, Germany, Latvia, Lithuania, Poland, Russia, Sweden, and the North European Plain, North and Central European Plain regions. It is the world's largest brackish water basin. The sea stretches from 53°N to 66°N latitude and from 10°E to 30°E longitude. It is a Continental shelf#Shelf seas, shelf sea and marginal sea of the Atlantic with limited water exchange between the two, making it an inland sea. The Baltic Sea drains through the Danish straits into the Kattegat by way of the Øresund, Great Belt and Little Belt. It includes the Gulf of Bothnia (divided into the Bothnian Bay and the Bothnian Sea), the Gulf of Finland, the Gulf of Riga and the Bay of Gdańsk. The "Baltic Proper" is bordered on its northern edge, at latitude 60°N, by Åland and the Gulf of Bothnia, on its northeastern edge by the Gulf of Finland, on its eastern edge by the Gulf of Riga, and in the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
