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List Of United States Navy Destroyer Leaders
In the 1930s, the United States Navy built two classes of flotilla leaders, the ''Porter'' class, and the ''Somers'' class. Due to the regulations of the London Naval Treaty, these 13 ships had a displacement of 1,850 tons, compared to the 1,500 tons of a "standard" destroyer. When the treaty ended with the outbreak of World War II in Europe in 1939, the much larger ''Fletcher'' class was constructed, making the differentiation irrelevant. Following the war, destroyer leader (DL) was a hull classification symbol used by the U.S. Navy from the 1950s until 1975. These ships were more commonly called frigates, although they were much larger than frigates of other navies. They were intended to be larger and more capable than destroyers and to lead a destroyer task force. During the 1975 USN ship reclassification these ships were reclassified as guided missile destroyers (DDG) or guided missile cruisers (CG). The last one of these ships was decommissioned in 1999. A total of 41 ship ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ships Of US Navy Destroyer Division 6 At San Diego In October 1941 (80-G-K-14467)
A ship is a large watercraft that travels the world's oceans and other sufficiently deep waterways, carrying cargo or passengers, or in support of specialized missions, such as defense, research, and fishing. Ships are generally distinguished from boats, based on size, shape, load capacity, and purpose. Ships have supported exploration, trade, warfare, migration, colonization, and science. After the 15th century, new crops that had come from and to the Americas via the European seafarers significantly contributed to world population growth. Ship transport is responsible for the largest portion of world commerce. The word ''ship'' has meant, depending on the era and the context, either just a large vessel or specifically a ship-rigged sailing ship with three or more masts, each of which is square-rigged. As of 2016, there were more than 49,000 merchant ships, totaling almost 1.8 billion dead weight tons. Of these 28% were oil tankers, 43% were bulk carriers, and 13% were cont ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Navy
The United States Navy (USN) is the maritime service branch of the United States Armed Forces and one of the eight uniformed services of the United States. It is the largest and most powerful navy in the world, with the estimated tonnage of its active battle fleet alone exceeding the next 13 navies combined, including 11 allies or partner nations of the United States as of 2015. It has the highest combined battle fleet tonnage (4,635,628 tonnes as of 2019) and the world's largest aircraft carrier fleet, with eleven in service, two new carriers under construction, and five other carriers planned. With 336,978 personnel on active duty and 101,583 in the Ready Reserve, the United States Navy is the third largest of the United States military service branches in terms of personnel. It has 290 deployable combat vessels and more than 2,623 operational aircraft . The United States Navy traces its origins to the Continental Navy, which was established during the American Revo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flotilla Leader
A flotilla leader was a warship of late 19th century and early 20th century navies suitable for commanding a flotilla of destroyers or other small warships, typically a small cruiser or a large destroyer (known as a destroyer leader). The flotilla leader provided space, equipment and staff for the flotilla commodore (who typically held the rank of captain), including a wireless room, senior engineering and gunnery officers, and administrative staff to support the officers. Originally, older light or scout cruisers were often used, but in the early 1900s, the rapidly increasing speed of new destroyer designs meant that such vessels could no longer keep pace with their charges. Accordingly, large destroyer designs were produced for use as leaders. As destroyers changed from specialized anti-torpedo boat vessels that operated in squadrons to larger multi-purpose ships that operated alone or as leaders of groups of smaller vessels, and as command and control techniques improved (and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Porter-class Destroyer
The ''Porter''-class destroyers were a class of eight 1,850-ton large destroyers in the United States Navy. Like the preceding , their construction was authorized by Congress on 26 April 1916, but funding was delayed considerably. They were designed based on a 1,850-ton standard displacement limit imposed by the London Naval Treaty; the treaty's tonnage limit allowed 13 ships of this size, and the similar was built later to meet the limit. The first four ''Porter''s were laid down in 1933 by New York Shipbuilding in Camden, New Jersey, and the next four in 1934 at Bethlehem Steel Corporation in Quincy, Massachusetts. All were commissioned in 1936 except ''Winslow'', which was commissioned in 1937. They were built in response to the large ''Fubuki''-class destroyers that the Imperial Japanese Navy was building at the time and were initially designated as flotilla leaders. They served extensively in World War II, in the Pacific War, the Atlantic, and in the Americas. was the class ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Somers Class Destroyer
The ''Somers''-class destroyer was a class of five 1850-ton United States Navy destroyers based on the . They were answers to the large destroyers that the Japanese navy was building at the time, and were initially intended to be flotilla leaders. They were laid down from 1935–1936 and commissioned from 1937–1939. They were built to round-out the thirteen destroyers of 1,850 tons standard displacement allowed by the tonnage limits of the London Naval Treaty, and were originally intended to be repeat ''Porter''s. However, new high-pressure, high-temperature boilers became available, allowing the use of a single stack. This combined with weight savings (including elimination of reload torpedoes) allowed an increase from two quadruple center-line torpedo tube mounts to three. However, the ''Somers'' class were still over-weight and top-heavy.Friedman, pp. 84–86 This was the first US destroyer class to use steam superheated to ,Friedman, pp. 464–465 which became standard for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
London Naval Treaty
The London Naval Treaty, officially the Treaty for the Limitation and Reduction of Naval Armament, was an agreement between the United Kingdom, Japan, France, Italy, and the United States that was signed on 22 April 1930. Seeking to address issues not covered in the 1922 Washington Naval Treaty, which had created tonnage limits for each nation's surface warships, the new agreement regulated submarine warfare, further controlled cruisers and destroyers, and limited naval shipbuilding. Ratifications were exchanged in London on 27 October 1930, and the treaty went into effect on the same day, but it was largely ineffective. The treaty was registered in '' League of Nations Treaty Series'' on 6 February 1931. Conference The signing of the treaty remains inextricably intertwined with the ongoing negotiations, which began before the official start of the London Naval Conference of 1930, evolved throughout the progress of the official conference schedule, and continued for years ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
World War II
World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposing military alliances: the Allies and the Axis powers. World War II was a total war that directly involved more than 100 million personnel from more than 30 countries. The major participants in the war threw their entire economic, industrial, and scientific capabilities behind the war effort, blurring the distinction between civilian and military resources. Aircraft played a major role in the conflict, enabling the strategic bombing of population centres and deploying the only two nuclear weapons ever used in war. World War II was by far the deadliest conflict in human history; it resulted in 70 to 85 million fatalities, mostly among civilians. Tens of millions died due to genocides (including the Holocaust), starvation, ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fletcher Class Destroyer
The ''Fletcher'' class was a class of destroyers built by the United States during World War II. The class was designed in 1939, as a result of dissatisfaction with the earlier destroyer leader types of the and classes. Some went on to serve during the Korean War and into the Vietnam War. The United States Navy commissioned 175 ''Fletcher''-class destroyers between 1942 and 1944, more than any other destroyer class, and the design was generally regarded as highly successful. The ''Fletcher''s had a design speed of and a principal armament of five guns in single mounts with ten torpedo tubes in two quintuple centerline mounts. The and classes were ''Fletcher'' derivatives. The long-range ''Fletcher''-class ships performed every task asked of a destroyer, from anti-submarine warfare and anti-aircraft warfare to surface action.Friedman pp. 111–112. They could cover the vast distances required by fleet actions in the Pacific and served almost exclusively in the Pacific Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hull Classification Symbol
The United States Navy, United States Coast Guard, and United States National Oceanic and Atmospheric Administration (NOAA) use a hull classification symbol (sometimes called hull code or hull number) to identify their ships by type and by individual ship within a type. The system is analogous to the pennant number system that the Royal Navy and other European and Commonwealth navies use. History United States Navy The U.S. Navy began to assign unique Naval Registry Identification Numbers to its ships in the 1890s. The system was a simple one in which each ship received a number which was appended to its ship type, fully spelled out, and added parenthetically after the ship's name when deemed necessary to avoid confusion between ships. Under this system, for example, the battleship ''Indiana'' was USS ''Indiana'' (Battleship No. 1), the cruiser ''Olympia'' was USS ''Olympia'' (Cruiser No. 6), and so on. Beginning in 1907, some ships also were referred to alternatively ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Frigate
A frigate () is a type of warship. In different eras, the roles and capabilities of ships classified as frigates have varied somewhat. The name frigate in the 17th to early 18th centuries was given to any full-rigged ship built for speed and maneuverability, intended to be used in scouting, escort and patrol roles. The term was applied loosely to ships varying greatly in design. In the second quarter of the 18th century, the 'true frigate' was developed in France. This type of vessel was characterised by possessing only one armed deck, with an unarmed deck below it used for berthing the crew. Late in the 19th century (British and French prototypes were constructed in 1858), armoured frigates were developed as powerful ironclad warships, the term frigate was used because of their single gun deck. Later developments in ironclad ships rendered the frigate designation obsolete and the term fell out of favour. During the Second World War the name 'frigate' was reintroduced to des ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Destroyer
In naval terminology, a destroyer is a fast, manoeuvrable, long-endurance warship intended to escort larger vessels in a fleet, convoy or battle group and defend them against powerful short range attackers. They were originally developed in 1885 by Fernando Villaamil for the Spanish NavySmith, Charles Edgar: ''A short history of naval and marine engineering.'' Babcock & Wilcox, ltd. at the University Press, 1937, page 263 as a defense against torpedo boats, and by the time of the Russo-Japanese War in 1904, these "torpedo boat destroyers" (TBDs) were "large, swift, and powerfully armed torpedo boats designed to destroy other torpedo boats". Although the term "destroyer" had been used interchangeably with "TBD" and "torpedo boat destroyer" by navies since 1892, the term "torpedo boat destroyer" had been generally shortened to simply "destroyer" by nearly all navies by the First World War. Before World War II, destroyers were light vessels with little endurance for unattended o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Navy 1975 Ship Reclassification
The United States Navy reclassified many of its surface vessels in 1975, changing terminology and hull classification symbols for cruisers, frigates, and ocean escorts. Classification prior to 1975 From the 1950s to 1975, the US Navy had three types of fast task force escorts and one type of convoy escort. The task force escorts were cruisers (hull classification symbols CAG/CLG/CG), frigates or destroyer-leaders (DL/DLG), and destroyers (DD/DDG); the convoy escorts were ocean escorts (DE/DEG), often called destroyer escorts as they retained the designation and number series of the World War II vessels. Added in the early 1970s was a new ocean escort called the patrol frigate (PF), another designation previously used in World War II, which was the initial designation of the .Bauer and Roberts, pp. 251-252 In 1975, these classifications were simplified to cruiser (CG), destroyer (DD/DDG), and frigate (FF/FFG). Under the pre-1975 classification, cruisers were large vessels, the si ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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