Veinticinco De Mayo-class Cruiser
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Veinticinco De Mayo-class Cruiser
The two ''Veinticinco de Mayo''-class heavy cruisers served in the Argentine Navy through World War II. They were the only post-Washington Naval Treaty heavy cruisers built for a South American navy. Both ships of the class were built in Italy by the OTO company, and commissioned into the Argentine Navy in 1931. Background Prior to the First World War, Argentina engaged in a vastly expensive naval arms race with its neighbors and rivals Brazil and Chile. As all three countries were forced to acquire their warships from abroad, the war effectively halted the race. After the conflict's end, the Argentine Navy pushed their government to fund a new naval construction program and put their fleet on the same power level as Brazil's and Chile's. It took some time, but the Argentine Congress funded the modernization of the service's existing dreadnoughts and destroyers; they followed that three years later with 170 million Argentine pesos over ten years to expand the navy with new ...
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Cantiere Navale Fratelli Orlando
Cantiere navale fratelli Orlando (Orlando Brothers Shipyard) is a historical Italian shipyard in Livorno. History It was founded by Luigi Orlando and his brothers Giuseppe, Paolo and Salvatore who moved to Livorno from Genoa where in 1858 they had the management of Ansaldo which produced marine machines and cannons, in 1861 they directed the factory to the construction of ships. Cantiere Navale Fratelli Orlando Luigi Orlando on August 31, 1865 signed a thirty years concession for the buildings and the area of the former ''Lazzaretto di San Rocco'' (Saint Roch lazaret) which was transformed in an arsenal by Tommaso Mati in 1852. The shipyard entered into works the following year, and on July 29, 1867, the first ship was launched, the ironclad for the ''Regia Marina''. The shipyard developed and built the gunboats ''Alfredo Cappellini'' (1868) and ''Faa di Bruno'' (1869) for the ''Regia Marina'' and on March 17, 1883 the most difficult launch was that of the ironclad ''Lepanto ...
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Dreadnought
The dreadnought (alternatively spelled dreadnaught) was the predominant type of battleship in the early 20th century. The first of the kind, the Royal Navy's , had such an impact when launched in 1906 that similar battleships built after her were referred to as "dreadnoughts", and earlier battleships became known as pre-dreadnoughts. Her design had two revolutionary features: an "all-big-gun" armament scheme, with an unprecedented number of heavy-calibre guns, and steam turbine propulsion. As dreadnoughts became a crucial symbol of national power, the arrival of these new warships renewed the naval arms race between the United Kingdom and Germany. Dreadnought races sprang up around the world, including in South America, lasting up to the beginning of World War I. Successive designs increased rapidly in size and made use of improvements in armament, armour and propulsion throughout the dreadnought era. Within five years, new battleships outclassed ''Dreadnought'' herself. Th ...
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Cruiser Classes
A cruiser is a type of warship. Modern cruisers are generally the largest ships in a fleet after aircraft carriers and amphibious assault ships, and can usually perform several roles. The term "cruiser", which has been in use for several hundred years, has changed its meaning over time. During the Age of Sail, the term ''cruising'' referred to certain kinds of missions—independent scouting, commerce protection, or raiding—fulfilled by frigates or sloops-of-war, which functioned as the ''cruising warships'' of a fleet. In the middle of the 19th century, ''cruiser'' came to be a classification of the ships intended for cruising distant waters, for commerce raiding, and for scouting for the battle fleet. Cruisers came in a wide variety of sizes, from the medium-sized protected cruiser to large armored cruisers that were nearly as big (although not as powerful or as well-armored) as a pre-dreadnought battleship. With the advent of the dreadnought battleship before World W ...
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List Of Cruisers
This is a list of cruisers, from 1860 to the present. It includes torpedo, unprotected, protected, scout, light, armoured, battle-, heavy and missile cruisers. Dates are launching dates. Africa South Africa ; Protected cruiser * SATS ''General Botha'' (1885, ex-HMS ''Thames'') - Assigned 1922, scuttled 1947. Americas Argentina ; Torpedo cruiser * (1893) - Decommissioned 1927 ; Protected cruisers * (1886) - Decommissioned 1927 * ''Necochea'' (1890) - Renamed ''Veinticinco de Mayo'', decommissioned 1921 * (1892) - Discarded 1930 * (1895) - Retired 1932 ; Armored cruisers * ** (1895) - Retired 1934 ** (1896) - Retired 1935 ** (1897) - Retired 1947 ** (1897) - Retired 1954 ** ''Bernardino Rivadavia'' (1902) - Sold to Japan before delivery 1904, renamed ''Kasuga'', discarded 1945 ** ''Mariano Moreno'' (1903) - Sold to Japan before delivery 1904, renamed ''Nisshin'', retired 1935 ; Heavy cruisers * ** (1929) - Scrapped 1960 ** (1929) - Scrapped 1962 ; Light cruis ...
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United Kingdom
The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Europe, off the north-western coast of the continental mainland. It comprises England, Scotland, Wales and Northern Ireland. The United Kingdom includes the island of Great Britain, the north-eastern part of the island of Ireland, and many smaller islands within the British Isles. Northern Ireland shares a land border with the Republic of Ireland; otherwise, the United Kingdom is surrounded by the Atlantic Ocean, the North Sea, the English Channel, the Celtic Sea and the Irish Sea. The total area of the United Kingdom is , with an estimated 2020 population of more than 67 million people. The United Kingdom has evolved from a series of annexations, unions and separations of constituent countries over several hundred years. The Treaty of Union between the Kingdom of England (which included Wales, annexed in 1542) and the Kingdom of Scotland in 170 ...
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ARA Veinticinco De Mayo (C-2)
ARA ''Veinticinco de Mayo'' was a cruiser which served in the Argentine Navy. The English translation of the name is ''May 25'', which is the date of Argentina's May Revolution in 1810. History and design ''Veinticinco de Mayo'' was built in Italy and was the first ship of the of cruisers. Three vessels were to be produced, but in the end, only ''25 de Mayo'' and her sister ship were acquired, both in 1931. These ships were unusual in several ways. First, they carried 7.5-inch guns, only the third class of warship to do so (the British ''Hawkins''-class cruisers of World War I being another; a more typical main armament for heavy cruisers is 8-inch guns). Also, like the Italian and other Italian-built warships of the era they carried their floatplanes under the foredeck and launched them from a fixed catapult over the bows. See also * List of cruisers * List of ships of the Argentine Navy References * David Miller, ''Illustrated Directory of Warships - from 1860 to ...
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ARA Almirante Brown (C-1)
''Almirante Brown'' was a heavy cruiser in service with the Argentine Navy. The ship was named in honour of Admiral Guillermo Brown, the Father of the Argentine Navy. Design and construction ''Almirante Brown'' was built by Odero in Genoa (Italy), laid down 27 November 1927, launched on 11 August 1929, and completed 11 July 1931. Her total displacement was 6,800 tons. The ship was broadly similar to the Italian but was armed with three twin gun turrets as against four twin guns. Another important difference was the repositioning of the boilers, which gave the ship a single funnel. On trials the cruiser reached its contracted speed of . As completed the ship had a short funnel but it was subsequently raised. During the Second World War the ship finally received the catapult which had been included in the original design. The catapult and crane were carried on the centreline between the funnel and mainmast, with two Grumman floatplanes. When built six twin anti-aircra ...
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Axis Powers
The Axis powers, ; it, Potenze dell'Asse ; ja, 枢軸国 ''Sūjikukoku'', group=nb originally called the Rome–Berlin Axis, was a military coalition that initiated World War II and fought against the Allies. Its principal members were Nazi Germany, the Kingdom of Italy, and the Empire of Japan. The Axis were united in their opposition to the Allies, but otherwise lacked comparable coordination and ideological cohesion. The Axis grew out of successive diplomatic efforts by Germany, Italy, and Japan to secure their own specific expansionist interests in the mid-1930s. The first step was the protocol signed by Germany and Italy in October 1936, after which Italian leader Benito Mussolini declared that all other European countries would thereafter rotate on the Rome–Berlin axis, thus creating the term "Axis". The following November saw the ratification of the Anti-Comintern Pact, an anti-communist treaty between Germany and Japan; Italy joined the Pact in 1937, follow ...
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Bofors 40 Mm Automatic Gun L/60
The Bofors 40 mm Automatic Gun L/60 (often referred to simply as the "Bofors 40 mm gun", the "Bofors gun" and the like, see name) is an anti-aircraft autocannon, designed in the 1930s by the Swedish arms manufacturer AB Bofors. The gun was designed as an intermediate anti-aircraft gun, filling the gap between fast firing close-range small calibre anti-aircraft guns and slower firing long-range high calibre anti-aircraft guns, a role which previously was filled by older outdated guns. The Bofors 40 mm L/60 was for its time perfectly suited for this role and outperformed competing designs in the years leading up to World War II in both effectiveness and reliability. It entered the export market around 1932 and was in service with 18 countries by 1939. Throughout World War II it became one of the most popular and widespread medium-weight anti-aircraft guns. It was used by the majority of the western Allies and some Axis powers such as Nazi Germany and Hungary. In the pos ...
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Rate Of Fire
Rate of fire is the frequency at which a specific weapon can fire or launch its projectiles. This can be influenced by several factors, including operator training level, mechanical limitations, ammunition availability, and weapon condition. In modern weaponry, it is usually measured in rounds per minute (RPM or round/min) or rounds per second (RPS or round/s). There are three different measurements for the rate of fire: cyclic, sustained, and rapid. Cyclic is the maximum rate of fire given only mechanical function, not taking into account degradation of function due to heat, wear, or ammunition constraints. Sustained is the maximum efficient rate of fire given the time taken to load the weapon and keep it cool enough to operate. Finally, rapid is the maximum reasonable rate of fire in an emergency when the rate of fire need not be upheld for long periods. Overview For manually operated weapons such as bolt-action rifles or artillery pieces, the rate of fire is governed primarily ...
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Dual Purpose Gun
A dual-purpose gun is a naval artillery mounting designed to engage both surface and air targets. Description Second World War-era capital ships had four classes of artillery: the heavy main battery, intended to engage opposing battleships and cruisers of 305 mm to 457 mm (12 inch to 18 inch); a secondary battery for use against enemy destroyers of 152 mm to 203 mm (6 inch to 8 inch); heavy anti-aircraft guns of 76 mm to 127 mm (3 inch to 5 inch), which could create barrages to knock out airplanes at a distance; finally, light rapid-fire anti-aircraft batteries (A/A) to track and bring down aircraft at close range. The light A/A was dispersed throughout the ship and included both automatic cannons of 20 mm to 40 mm (.787 inch to 1.57 inch) and heavy machine guns of 12.7 mm to 14.5 mm (.50 inch to .58 inch). During World War II, the US Navy, Royal Navy, the French Navy, and the Imperial Japanese Navy combined the secondary battery with the heavy anti-aircraft guns, creating a d ...
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Armoured Cruiser
The armored cruiser was a type of warship of the late 19th and early 20th centuries. It was designed like other types of cruisers to operate as a long-range, independent warship, capable of defeating any ship apart from a battleship and fast enough to outrun any battleship it encountered. For many decades, naval technology had not advanced far enough for designers to produce a cruiser which combined an armored belt with the long range and high speed required to fulfill its mission. For this reason, beginning in the 1880s and 1890s, many navies preferred to build protected cruisers, which only relied on a light armored deck to protect the vital parts of the ship. However, by the late 1880s, the development of modern rapid-fire breech-loading cannon and high-explosive shells made the reintroduction of side armor a necessity. The invention of face-hardened armor in the mid-1890s offered effective protection with less weight than previously. Varying in size, the armored cruiser was ...
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