|
Skrunda-class Patrol Boat
The ''Skrunda'' class is a class of SWATH patrol vessels used by the Latvian Navy. The main duties of the vessels include fisheries inspections, search and rescue, environmental protection, sovereignty enforcement, and participation in NATO and EU operations. Description The ''Skrunda'' class was ordered in 2008 and built in cooperation by Abeking & Rasmussen Shipyard in Germany and Riga Shipyard in Latvia between 2009 and 2013. The class and the five vessels are named after towns and cities in Latvia from each of the five historical regions of Latvia, where important battles for Latvia's independence took place. The design is based on the well proven Abeking & Rasmussen SWATH Pilot boat design, which is known for its excellent seaworthiness, offering motions in high sea state similar to conventional monohull ships three to four times its size. ''Skrunda''-class vessels are able to perform 100% of their duties in waves as high as . The propulsion system was designed specif ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Abeking & Rasmussen
Abeking & Rasmussen (A&R) is a shipyard situated in Lemwerder, near Bremen in the German state of Lower Saxony. The shipyard is on the left bank of the River Weser, and currently comprises five production halls with associated workshops and offices, an inner harbour and a syncrolift. The business was founded in 1907 by George Abeking and Henry Rasmussen. Rasmussen, who was known as a talented yacht skipper, proved to be equally adept as a yacht designer. In its early years, the yard worked for the private, commercial and military sectors, building wooden sailing yachts and motor yachts, together with patrol boats and other specialised vessels. In 1928, the yard began building Starling Burgess' Atlantic one-design; at this time, the post-war economy made European-built boats attractive in the USA. Today the yard continues to construct a similar spread of vessels, building yachts alongside naval vessels, pilot boats and similar ships. The yard is particularly well known for a nu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Germany
Germany,, officially the Federal Republic of Germany, is a country in Central Europe. It is the second most populous country in Europe after Russia, and the most populous member state of the European Union. Germany is situated between the Baltic and North seas to the north, and the Alps to the south; it covers an area of , with a population of almost 84 million within its 16 constituent states. Germany borders Denmark to the north, Poland and the Czech Republic to the east, Austria and Switzerland to the south, and France, Luxembourg, Belgium, and the Netherlands to the west. The nation's capital and most populous city is Berlin and its financial centre is Frankfurt; the largest urban area is the Ruhr. Various Germanic tribes have inhabited the northern parts of modern Germany since classical antiquity. A region named Germania was documented before AD 100. In 962, the Kingdom of Germany formed the bulk of the Holy Roman Empire. During the 16th ce ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Patrol Boat Classes
A patrol is commonly a group of personnel, such as law enforcement officers, military personnel, or security personnel, that are assigned to monitor or secure a specific geographic area. Etymology From French ''patrouiller'', from Old French ''patouiller'' “to paddle, paw about, patrol”, from ''patte'' “a paw”. Military In military tactics, a ''patrol'' is a sub-subunit or small tactical formation, sent out from a military organization by land, sea or air for the purpose of combat, reconnaissance, or a combination of both. The basic task of a patrol is to follow a known route with the purpose of investigating some feature of interest or, in the assignment of a ''fighting patrol'' (U.S. ''combat patrol''), to find and engage the enemy. A patrol can also mean a small cavalry or armoured unit, subordinate to a troop or platoon, usually comprising a section or squad of mounted troopers, or two armoured fighting vehicles (often tanks). Law enforcement In non-m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Minehunter
A minehunter is a naval vessel that seeks, detects, and destroys individual naval mines. Minesweepers, on the other hand, clear mined areas as a whole, without prior detection of mines. A vessel that combines both of these roles is known as a mine countermeasures vessel (MCMV). Description A minehunter uses an imaging sonar to detect and classify targets and then sends out divers or remotely operated vehicles to inspect and neutralise the threat, often using small charges that are detonated remotely. As minehunters will often be operating in close proximity to mines, they are designed so as to reduce their own acoustic and magnetic signatures, two common forms of trigger for mines. For example, they are often soundproofed by mounting machinery on shock absorbers or by using quiet electrical drive, low magnetic electric motors and usually have a wood, fiberglass or non-ferrous metal hull, or are degaussed to reduce magnetic signature.Design Guide and Requirements fo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Frogman
A frogman is someone who is trained in scuba diving or swimming underwater in a tactical capacity that includes military, and in some European countries, police work. Such personnel are also known by the more formal names of combat diver, combatant diver, or combat swimmer. The word ''frogman'' first arose in the stage name ''The Fearless Frogman'' of Paul Boyton in the 1870s and later was claimed by John Spence, an enlisted member of the U.S. Navy and member of the OSS Maritime Unit, to have been applied to him while he was training in a green waterproof suit. The term ''frogman'' is occasionally used to refer to a civilian scuba diver. Some sport diving clubs include the word ''Frogmen'' in their names. The preferred term by scuba users is ''diver'', but the ''frogman'' epithet persists in informal usage by non-divers, especially in the media and often referring to professional scuba divers, such as in a police diving role. In the U.S. military and intelligence community ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ISO Container
An intermodal container, often called a shipping container, is a large standardized shipping container, designed and built for intermodal freight transport, meaning these containers can be used across different modes of transport – from ship to rail to truck – without unloading and reloading their cargo. Intermodal containers are primarily used to store and transport materials and products efficiently and securely in the global containerized intermodal freight transport system, but smaller numbers are in regional use as well. These containers are known under a number of names. Based on size alone, up to 95% of intermodal containers comply with ISO standards, and can officially be called ISO containers. Many other names are simply: container, cargo or freight container, shipping, sea or ocean container, container van or sea van, sea can or C can, or MILVAN, SEAVAN, or RO/RO. The also used term CONEX (Box) is technically incorrect carry-over usage of the name of an important ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bow (ship)
The bow () is the forward part of the hull of a ship or boat, the point that is usually most forward when the vessel is underway. The aft end of the boat is the stern. Prow may be used as a synonym for bow or it may mean the forward-most part of the bow above the waterline. Function A ship's bow should be designed to enable the hull to pass efficiently through the water. Bow shapes vary according to the speed of the boat, the seas or waterways being navigated, and the vessel's function. Where sea conditions are likely to promote pitching, it is useful if the bow provides reserve buoyancy; a flared bow (a raked stem with flared topsides) is ideal to reduce the amount of water shipped over the bow. Ideally, the bow should reduce the resistance and should be tall enough to prevent water from regularly washing over the top of it. Large commercial barges on inland waterways rarely meet big waves and may have remarkably little freeboard at the bow, whereas fast military ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Controllable Pitch Propeller
In marine propulsion, a variable-pitch propeller is a type of propeller with blades that can be rotated around their long axis to change the blade pitch. Reversible propellers—those where the pitch can be set to negative values—can also create reverse thrust for braking or going backwards without the need to change the direction of shaft revolution. A controllable pitch propeller (CPP) can be efficient for the full range of rotational speeds and load conditions, since its pitch will be varied to absorb the maximum power that the engine is capable of producing. When fully loaded, a vessel will need more propulsion power than when empty. By varying the propeller blades to the optimal pitch, higher efficiency can be obtained, thus saving fuel. A vessel with a VPP can accelerate faster from a standstill and can decelerate much more effectively, making stopping quicker and safer. A CPP can also improve vessel maneuverability by directing a stronger flow of water onto the ru ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diesel Engine
The diesel engine, named after Rudolf Diesel, is an internal combustion engine in which ignition of the fuel is caused by the elevated temperature of the air in the cylinder due to mechanical compression; thus, the diesel engine is a so-called compression-ignition engine (CI engine). This contrasts with engines using spark plug-ignition of the air-fuel mixture, such as a petrol engine (gasoline engine) or a gas engine (using a gaseous fuel like natural gas or liquefied petroleum gas). Diesel engines work by compressing only air, or air plus residual combustion gases from the exhaust (known as exhaust gas recirculation (EGR)). Air is inducted into the chamber during the intake stroke, and compressed during the compression stroke. This increases the air temperature inside the cylinder to such a high degree that atomised diesel fuel injected into the combustion chamber ignites. With the fuel being injected into the air just before combustion, the dispersion of the fuel is une ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Latvian War Of Independence
The Latvian War of Independence ( lv, Latvijas Neatkarības karš), sometimes called Latvia's freedom battles () or the Latvian War of Liberation (), was a series of military conflicts in Latvia between 5 December 1918, after the newly proclaimed Republic of Latvia was invaded by Soviet Russia, and the signing of the Latvian-Soviet Riga Peace Treaty on 11 August 1920. The war can be divided into a few stages: Soviet offensive, German-Latvian liberation of Kurzeme and Riga, Estonian-Latvian liberation of Vidzeme, Bermontian offensive, Latvian-Polish liberation of Latgale. The war involved Latvia (its provisional government supported by Estonia, Poland and the Western Allies—particularly the navy of United Kingdom) against the Russian SFSR and the Bolsheviks' short-lived Latvian Socialist Soviet Republic. Germany and the Baltic nobility added another level of intrigue, initially being nominally allied to the Nationalist/Allied force but attempting to jockey for German domina ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cultural Regions Of Latvia
Historical Latvian Lands ( lv, Latviešu vēsturiskās zemes) or formerly Cultural regions of Latvia ( lv, Latvijas kultūrvēsturiskie novadi) are several areas within Latvia formally recognised as distinct from the rest of the country. While some of these regions are seen purely as culturally distinct, others have historically been parts of different countries and have been used to divide the country for administrative and other purposes. The Constitution of Latvia recognises four distinct regions: Kurzeme, Zemgale, Latgale and Vidzeme. On 16 June 2021, the Saeima adopted the Historical Latvian Lands Law which aims to create the necessary preconditions for strengthening the common identity of the population and for the preservation and sustainable development of the cultural and historical environment and cultural spaces of the historical Latvian lands. The Law underscores the belonging of each parish and town in Latvia to one of the five historical Latvian lands: Vidzeme, La ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
