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Sirena-class Submarine
The ''Sirena''-class submarines were the second sub-class of the 600 Series of coastal submarines built for the (Royal Italian Navy) during the early 1930s. Of the dozen boats built of this class, only one survived World War II. Design and description The ''Sirena'' class was an improved and enlarged version of the preceding s. They displaced surfaced and submerged. The submarines were long, had a beam of and a draft of . Their crew numbered 45 officers and enlisted men.Chesneau, p. 309 For surface running, the boats were powered by two diesel engines, each driving one propeller shaft. When submerged each propeller was driven by a electric motor. They could reach on the surface and underwater. On the surface, the ''Sirena'' class had a range of at ; submerged, they had a range of at .Bagnasco, p. 148 The boats were armed with six torpedo tubes, four in the bow and two in the stern for which they carried a total of 12 torpedoes. They were also armed with a single ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Submarine
A submarine (often shortened to sub) is a watercraft capable of independent operation underwater. (It differs from a submersible, which has more limited underwater capability.) The term "submarine" is also sometimes used historically or informally to refer to remotely operated vehicles and Autonomous underwater vehicle, robots, or to medium-sized or smaller vessels (such as the midget submarine and the wet sub). Submarines are referred to as ''boats'' rather than ''ships'' regardless of their size. Although experimental submarines had been built earlier, submarine design took off during the 19th century, and submarines were adopted by several navies. They were first used widely during World War I (1914–1918), and are now used in many navy, navies, large and small. Their military uses include: attacking enemy surface ships (merchant and military) or other submarines; aircraft carrier protection; Blockade runner, blockade running; Ballistic missile submarine, nuclear deterrenc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Draft (hull)
The draft or draught of a ship is a determined depth of the vessel below the waterline, measured vertically to its hull's lowest—its propellers, or keel, or other reference point. Draft varies according to the loaded condition of the ship. A deeper draft means the ship will have greater vertical depth below the waterline. Draft is used in under keel clearance calculations, where the draft is calculated with the available depth of water (from Electronic navigational charts) to ensure the ship can navigate safely, without grounding. Navigators can determine their draught by calculation or by visual observation (of the ship's painted load lines). Related terminology A ship's draft/draught is the "depth of the vessel below the waterline measured vertically to the lowest part of the hull, propellers, or other reference point". That is, the draft or draught is the maximum depth of any part of the vessel, including appendages such as rudders, propellers and drop keels if de ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Italian Submarines Of World War II
The Italian submarine fleet of World War II was the second largest in the world at the time, with 116 submarines. It saw action during the Second World War, serving mainly in the Mediterranean. During the conflict 88 submarines, 75% of its total strength, were lost. Construction history The submarine fleet available to the Italian Royal Navy (the ''Regia Marina'') in World War II was the product of a long term build-up during the interwar years, despite the prevailing economic and political pressures of the period. After World War I Italy had a fleet of 47 submarines in various classes; these were mostly obsolete and she was interested in replacing them. To this end the ''Regia Marina'' made plans for a fleet of vessels in three Types: * Type I ocean-going: * Type 2 coastal/sea-going; * Type 3 mine layers. * The Navy also invested time and resources in midget submarines and underwater special forces. At the same time the major powers were negotiating an arms limitation treaty at ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fiume
Rijeka (; Fiume ( �fjuːme in Italian and in Fiuman Venetian) is the principal seaport and the third-largest city in Croatia. It is located in Primorje-Gorski Kotar County on Kvarner Bay, an inlet of the Adriatic Sea and in 2021 had a population of 107,964 inhabitants. Historically, because of its strategic position and its excellent deep-water port, the city was fiercely contested, especially between the Holy Roman Empire, Venice, Italy and Yugoslavia, changing rulers and demographics many times over centuries. According to the 2011 census data, 85% of its citizens are Croats, along with small numbers of Serbs, Bosniaks and Italians. Rijeka is the main city and county seat of the Primorje-Gorski Kotar County. The city's economy largely depends on shipbuilding (shipyards " 3. Maj" and " Viktor Lenac Shipyard") and maritime transport. Rijeka hosts the Croatian National Theatre Ivan pl. Zajc, first built in 1765, as well as the University of Rijeka, founded in 1973 but ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taranto
Taranto (; ; previously called Tarent in English) is a coastal city in Apulia, Southern Italy. It is the capital of the province of Taranto, serving as an important commercial port as well as the main Italian naval base. Founded by Spartans in the 8th century BC during the period of Greek colonisation, Taranto was among the most important '' poleis'' in Magna Graecia, becoming a cultural, economic and military power that gave birth to philosophers, strategists, writers and athletes such as Archytas, Aristoxenus, Livius Andronicus, Heracleides, Iccus, Cleinias, Leonidas, Lysis and Sosibius. By 500 BC, the city was among the largest in the world, with a population estimated up to 300,000 people. The seven-year rule of Archytas marked the apex of its development and recognition of its hegemony over other Greek colonies of southern Italy. During the Norman period, it became the capital of the Principality of Taranto, which covered almost all of the heel of Apulia. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cantieri Navali Tosi Di Taranto
The Cantieri navali Tosi di Taranto (Tosi Shipyard at Taranto) is a defunct Italian shipyard founded in 1914 by engineering company Franco Tosi & C. Between World War I and World War II it specialized in building submarines. The company never really recovered from the devastation from World War II and it was one of the first acquisitions of the newly formed financial holding company, Fincantieri, on 29 December 1959. The shipyard closed on 31 December 1990. History Ships built Some of the vessels built at this shipyard are listed below. Submarines For the Regia Marina * N class : 2 of 6 units, built 1917-19 * ''Mameli'' class : 4 units, built 1926–28 * ''Bragadin'' class : 2 units, built 1929–30 * ''Settembrini'' class : 2 units, built 1930–31 * ''Argonauta'' class : 2 of 7 units, built 1931–32 * ''Sirena'' class : 2 of 12 units, built 1933 * ''Archimede'' class : 4 units, built 1933–34 * ''Micca'' class : 1 unit, built 1935 * ''Adua'' class : 4 of 17 units, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Monfalcone
Monfalcone (; Venetian language#Regional variants, Bisiacco: ; ; ; archaic ) is a town and (municipality) in the Province of Gorizia, Regional decentralization entity of Gorizia in Friuli-Venezia Giulia, northern Italy, located on the Gulf of Trieste. Its name means 'falcon mountain' (see in French and in Germanic languages). It is a major industrial centre for manufacturing ships, airplanes, textiles, chemicals, and refined oil, and is home to one of Fincantieri's main shipyards. Monfalcone is the northernmost city on the Mediterranean Sea. Geography Monfalcone is the fifth most populous town in Friuli-Venezia Giulia and the main centre of Bisiacaria territory. Joined to its neighbourhoods, it has about 50,000 inhabitants. The town lies between the Karst Plateau, Karst hills and the Adriatic Sea, Adriatic coast, and it is the northernmost port of the Mediterranean Sea. History In prehistoric times the area of Monfalcone housed several fortified villages called ''castellie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cantieri Riuniti Dell'Adriatico
Cantieri Riuniti dell'Adriatico ("United Shipbuilders of the Adriatic") was an Italian manufacturer in the sea and air industry which was active from 1930 to 1966. This shipyard is now owned by Fincantieri. History In 1930, Stabilimento Tecnico Triestino based at Trieste merged with another Italian company, the Cantiere Navale Triestino of Monfalcone, forming the ''Cantieri Riuniti dell'Adriatico'' (CRDA). The new company built a number of light and heavy cruisers for the Regia Marina (Royal Italian Navy) between the wars, as well as some 27 submarines. It also built, in 1932, the ocean liner ''Conte di Savoia'', the first major liner fitted with gyroscopic stabilizers. During World War II, CRDA Trieste built two battleships for the Regia Marina, ''Vittorio Veneto'' and ''Roma''. CRDA survived the postwar shakeup in the shipbuilding industry and went on to build several more commercial liners in the 1950s and 1960s, as well as a few naval vessels. In 1984, CRDA was sold to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scuttling
Scuttling is the act of deliberately sinking a ship by allowing water to flow into the hull, typically by its crew opening holes in its hull. Scuttling may be performed to dispose of an abandoned, old, or captured vessel; to prevent the vessel from becoming a navigation hazard; as an act of self destruct, self-destruction to prevent the ship from being captured by an enemy force; as a blockship to restrict navigation through a Channel (geography), channel or within a harbor; to provide an artificial reef for divers and marine life; or to alter the flow of rivers. Notable historical examples Skuldelev ships (around 1070) The Skuldelev ships, five Viking ships, were sunk to prevent attacks from the sea on the Danish city of Roskilde. The scuttling blocked a major waterway, redirecting ships to a smaller one that required considerable local knowledge. Cog near Kampen (early 15th century) In 2012, a Cog (ship), cog preserved from the keel up to the decks in the silt was dis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Muggiano
Lerici (, locally ) is a ''comune'' in the province of La Spezia, in the Italian region of Liguria, part of the Italian Riviera. It is situated on the coast of the Gulf of La Spezia, southeast of La Spezia. It is known as the place where the poet Percy Bysshe Shelley drowned. The town is connected by ferry to the Cinque Terre and Porto Venere. One of the main sights of Lerici is its castle which since its first founding in 1152 was used to help control the entrance of the Gulf of La Spezia. For a long time, the castle contained a museum of palaeontology inspired by a local lad (Walter) finding dinosaur bones in the region. History The origins of the town date back to the Etruscan period. In the Middle Ages the town came under Genoese control. After it had been sold to Lucca, it became involved in a series of conflicts between Genoa and Pisa, as it was on their common border. In 1479, the town came under Genoese sway for good. People Italian author Mario Soldati had a reside ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
OTO Melara
OTO Melara was a subsidiary of the Italian company Finmeccanica, today Leonardo, active in the defence sector, with factories in Brescia and La Spezia. From 1 January 2016, the activities of OTO Melara merged into Leonardo's Defence Systems Division, within the Electronics, Defence and Security Systems Sector. History Pre–World War I It was founded in 1905 as a joint venture of Vickers and Terni Steelworks, Cantiere navale fratelli Orlando and Cantieri navali Odero. Investment was also provided by Giuseppe Orlando and Attilio Odero. During World War I, Vickers Terni produced many weapons with calibre 40 mm and upwards. In 1929 the company was renamed Odero Terni Orlando with the abbreviation OTO. During World War II, mostly heavy guns for battleships were produced. Post–World War II In 1953 the company took the name OTO Melara. Before Italy joined NATO, OTO Melara produced civil products, like tractors and looms, but quickly returned to the production of wea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anti-aircraft Warfare
Anti-aircraft warfare (AAW) is the counter to aerial warfare and includes "all measures designed to nullify or reduce the effectiveness of hostile air action".AAP-6 It encompasses surface-based, subsurface (Submarine#Armament, submarine-launched), and air-based weapon systems, in addition to associated sensor systems, command and control arrangements, and passive measures (e.g. barrage balloons). It may be used to protect naval, army, ground, and air forces in any location. However, for most countries, the main effort has tended to be homeland defense. Missile defense, Missile defense is an extension of air defence, as are initiatives to adapt air defence to the task of intercepting any projectile in flight. Most modern anti-aircraft (AA) weapons systems are optimized for short-, medium-, or long-range air defence, although some systems may incorporate multiple weapons (such as both autocannons and surface-to-air missiles). 'Layered air defence' usually refers to multiple 't ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
