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Pohjanmaa-class Corvette
The ''Pohjanmaa'' class is a series of four multi-role corvettes currently under development for the Finnish Navy as part of the Squadron 2020 ( fi, Laivue 2020) project. Together with the existing four s, the four new surface combatants will form the backbone of the Finnish Navy from the mid-2020s onwards. They will replace seven older vessels that have been or are due to be decommissioned; the minelayer , two s and four s. Design General characteristics The overall length of the ''Pohjanmaa''-class corvettes will be about and the beam about . The maximum draught of the vessels will be about which corresponds to a displacement of about . With these main dimensions, the new multi-role corvettes will be the largest Finnish surface combatants since the 1930s coastal defence ships and . Each ship will have a complement of about 70 officers and crew. Designed for year-round service in the seasonally freezing Baltic Sea, ''Pohjanmaa''-class corvettes will feature an ice-strengt ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rauma Marine Constructions
Rauma Marine Constructions (RMC) is a Finnish shipbuilding company based in Rauma, Finland. The company's main products are car ferries, icebreakers and naval vessels. History Rauma Marine Constructions was established by private investors with background in the Finnish shipbuilding industry shortly after STX Finland closed the Rauma shipyard in 2014. In December 2015, the company received a major equity investment when the state-owned investment company Finnish Industry Investment became a minor shareholder together with Finnish investment funds managed by Finda and Taaleritehdas. An existing minor shareholder Kasvattajarahasto, an investment fund managed by Aboa Venture Management, also increased its share on the company. Orders Ferries In June 2016, Rauma Marine Constructions and the Danish shipping company Molslinjen signed a 68 million euro contract for the construction of roll-on/roll-off ferry for the Bornholm route. This was the first newbuilding contract awa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Surface-to-surface Missile
A surface-to-surface missile (SSM) or ground-to-ground missile (GGM) is a missile designed to be launched from the ground or the sea and strike targets on land or at sea. They may be fired from hand-held or vehicle mounted devices, from fixed installations, or from a ship. They are often powered by a rocket engine or sometimes fired by an explosive charge, since the launching platform is typically stationary or moving slowly. They usually have fins and/or wings for lift and stability, although hyper-velocity or short-ranged missiles may use body lift or fly a ballistic trajectory. The V-1 flying bomb The V-1 flying bomb (german: Vergeltungswaffe 1 "Vengeance Weapon 1") was an early cruise missile. Its official Ministry of Aviation (Nazi Germany), Reich Aviation Ministry () designation was Fi 103. It was also known to the Allies as the buz ... was the first operational surface-to-surface missile. Contemporary surface-to-surface missiles are usually guided missile, guided. An ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Displacement (ship)
The displacement or displacement tonnage of a ship is its weight. As the term indicates, it is measured indirectly, using Archimedes' principle, by first calculating the volume of water displaced by the ship, then converting that value into weight. Traditionally, various measurement rules have been in use, giving various measures in long tons. Today, tonnes are more commonly used. Ship displacement varies by a vessel's degree of load, from its empty weight as designed (known as "lightweight tonnage") to its maximum load. Numerous specific terms are used to describe varying levels of load and trim, detailed below. Ship displacement should not be confused with measurements of volume or capacity typically used for commercial vessels and measured by tonnage: net tonnage and gross tonnage. Calculation The process of determining a vessel's displacement begins with measuring its draft.George, 2005. p.5. This is accomplished by means of its "draft marks" (or "load lines"). A mer ... [...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, 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 from 2:1 (dinghies to trailerable sailboats around ) to 5:1 (racing sailboats over ). Large ships have widely varying beam ratios, some as large as 20:1. Rowing shells designed for flatwater racing may have length to beam ratios as high as 30:1, while a cor ... [...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] |
Minelayer
A minelayer is any warship, submarine or military aircraft deploying explosive mines. Since World War I the term "minelayer" refers specifically to a naval ship used for deploying naval mines. "Mine planting" was the term for installing controlled mines at predetermined positions in connection with coastal fortifications or harbor approaches that would be detonated by shore control when a ship was fixed as being within the mine's effective range. Before World War I, mine ships were termed mine planters generally. For example, in an address to the United States Navy ships of Mine Squadron One at Portland, England, Admiral Sims used the term “mine layer” while the introduction speaks of the men assembled from the “mine planters”. During and after that war the term "mine planter" became particularly associated with defensive coastal fortifications. The term "minelayer" was applied to vessels deploying both defensive- and offensive mine barrages and large scale sea mining. " ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Finnish Navy
The Finnish Navy ( fi, Merivoimat, sv, Marinen) is one of the branches of the Finnish Defence Forces. The navy employs 2,300 people and about 4,300 conscripts are trained each year. Finnish Navy vessels are given the ship prefix "FNS", short for "Finnish Navy ship", but this is not used in Finnish language contexts. The Finnish Navy also includes coastal forces and coastal artillery. Organization The current Commander of the Navy is rear admiral Jori Harju. The navy is organized into the Navy Command, three Brigade-level units, and the Naval Academy. Since 1998 the navy also includes the Nyland Brigade in Dragsvik, where Finnish Marines or '' Coastal Jaegers'' are trained. Nyland Brigade is also the only Swedish language unit in the country and it carries on the traditions and battle-honours of the Nyland (Uusimaa) Regiment of the Swedish Army. Locations * Navy Command headquarters: (Heikkilä, Turku) * Naval depot: Pansio and Kimito * Naval research depot: Espoo Bases ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Corvette
A corvette is a small warship. It is traditionally the smallest class of vessel considered to be a proper (or " rated") warship. The warship class above the corvette is that of the frigate, while the class below was historically that of the sloop-of-war. The modern roles that a corvette fulfills include coastal patrol craft, missile boat and fast attack craft. These corvettes are typically between 500 tons and 2,000 .although recent designs may approach 3,000 tons, having size and capabilities that overlap with smaller frigates. However unlike contemporary frigates, a modern corvette does not have sufficient endurance and seaworthiness for long voyages. The word "corvette" is first found in Middle French, a diminutive of the Dutch word ''corf'', meaning a "basket", from the Latin ''corbis''. The rank "corvette captain", equivalent in many navies to "lieutenant commander", derives from the name of this type of ship. The rank is the most junior of three "captain" ranks in sev ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Remote Weapon Station
A remote controlled weapon station (RCWS), or remote weapon station (RWS), also known as a remote weapon system (RWS), is a remotely operated weaponized system often equipped with fire-control system for light and medium- caliber weapons which can be installed on a ground combat vehicle or sea- and air-based combat platforms. Such equipment is used on modern military vehicles, as it allows a gunner to remain in the relative protection of the vehicle. It may also be retrofitted onto existing vehicles; for example, the Crows system is being fitted to American Humvees. Examples * ** Electro Optic Systems * ** FN Herstal: deFNder Family * ** REMAX * ** Rheinmetall Canada: Fieldranger * ** UW4A ** CS/LK4 ** H/PJ17 * **Hornet **Hornet Lite **Hornet S * ** Patria: PML 127 OWS * : ** DRWS-1 ** DRWS-2 ** RWS-23 * : ** FLW 100, FLW 200 and FLW 200+ * : ** BEL RCWS ** MDSL RWS ** SHARANG RWS * ** ARIO-H762 ** Raad - 30mm remote control turret * : **Typhoon Weapon System * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Saab Trackfire
The Saab Trackfire is a Remote Weapon Station (RWS), i.e. a remotely operated weaponized system that can be fitted with either medium or light caliber weapons. It can be mounted to vehicles, ships and stationary platforms. It is manufactured by Saab Group. Operators ; :Hamina-class missile boat :Jehu-class landing craft :Pansio-class minelayer ; :Combat Boat 90 References [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anti-submarine Warfare
Anti-submarine warfare (ASW, or in older form A/S) is a branch of underwater warfare that uses surface warships, aircraft, submarines, or other platforms, to find, track, and deter, damage, or destroy enemy submarines. Such operations are typically carried out to protect friendly shipping and coastal facilities from submarine attacks and to overcome blockades. Successful ASW operations typically involved a combination of sensor and weapon technologies, along with effective deployment strategies and sufficiently trained personnel. Typically, sophisticated sonar equipment is used for first detecting, then classifying, locating, and tracking a target submarine. Sensors are therefore a key element of ASW. Common weapons for attacking submarines include torpedoes and naval mines, which can both be launched from an array of air, surface, and underwater platforms. ASW capabilities are often considered of significant strategic importance, particularly following provocative instan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Torped 47
The Torped 47 or SLWT (Saab’s Lightweight Torpedo) is a new lightweight torpedo intended for ASW and surface targets, providing multiple-target active/passive homing combined with wire guidance. It is designed and manufactured by Saab Dynamics as a replacement for the Torped 45. The torpedo is designed for the Swedish Navy and it will be equipped with both a passive and an active homing device and use wire communication like the Torpedo 45, using a galvanic wire (later also an optical wire). Torpedo 47 can be launched from a variety of platforms including stationary, surface vessels, submarines, helicopters and airplanes like Saab Swordfish MPA. It is specifically designed to operate against littoral submarine targets and surface vessels. It is controlled using wire guidance and has a hydro-acoustic homing system for the final phase. The torpedo has features that are unique for lightweight torpedoes. SLWT will be delivered to the Finnish Navy as part of the Squadron 2020 prog ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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