|
F-class Escort Ship
The F-class escort ships were a class of fleet escorts () used by the German Navy ('' Kriegsmarine'') during the Second World War. Ten ships were built in total to fulfil a multi-purpose role. They were the only ships of this type of built by the ''Kriegsmarine''. The ships were not given names, but were designated ''F1'' through ''F10''. Construction The ships were built by Germaniawerft (F 1 – F 6), Kiel, Blohm & Voss (F 7, F 8) and Wilhelmshaven dockyard (F 9, F 10). They entered service between 1936 and 1939. Similar in size to the Type 35 and Type 37 torpedo-boats, the ships were originally conceived as fast fleet or convoy escort ships that could also perform anti-submarine and minesweeping work. They were also used as a testbed class for a new high-pressure steam power plant intended for use in future destroyers. As a class, they were overloaded and over-engined, which contributed to severe hull stress and very poor sea-keeping characte ... [...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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Minesweeper (ship)
A minesweeper is a small warship designed to remove or detonate naval mines. Using various mechanisms intended to counter the threat posed by naval mines, minesweepers keep waterways clear for safe shipping. History The earliest known usage of the naval mine dates to the Ming dynasty.Needham, Volume 5, Part 7, 203–205. Dedicated minesweepers, however, only appeared many centuries later during the Crimean War, where they were deployed by the British. The Crimean War minesweepers were rowboats trailing grapnels to snag mines. Minesweeping technology picked up in the Russo-Japanese War, using aging torpedo boats as minesweepers. In Britain, naval leaders recognized before the outbreak of World War I that the development of sea mines was a threat to the nation's shipping and began efforts to counter the threat. Sir Arthur Wilson noted the real threat of the time was blockade aided by mines and not invasion. The function of the fishing fleet's trawlers with their trawl gear was ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Job Maseko
Job Maseko was a South African soldier during World War II, serving in the Native Military Corps as part of the South African 2nd Infantry Division. He was one of many Allied troops captured by the Axis in the surrender of the port of Tobruk in 1942. He gained fame by his actions in sinking a German vessel with a milk can whilst serving as a POW stevedore in Tobruk harbour, for which he was awarded the Military Medal. Before the War Before the war, Maseko worked as a miner in Springs South Africa. After completion of basic training, he was sent to North Africa to join the 2nd South African Division. Surrender and sabotage Maseko became a prisoner of war on 21 June 1942 when Major-General Hendrik Klopper, commander of the South African 2nd Infantry Division surrendered the Tobruk Garrison with 32,000 men to Field Marshal Erwin Rommel. The garrison included 10,722 South Africans of the 2nd Division (of which 1,200 were Native Military Corps members). The Germans separat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Torpedoboot Ausland
The ''Torpedoboot Ausland'' ("foreign torpedo boats") were small destroyers or large torpedo boats captured by Nazi Germany and incorporated into the Kriegsmarine. They were assigned a number beginning with TA. Ex-French ships *Former French s, under construction in France. None were completed for the Germans.Conway p271 :* (ex ''Le Fier''): Scuttled while incomplete August 1944 :* (ex ''L'Agile''): Scuttled while incomplete August 1944 :* (ex ''L'Alsacien''): Broken up 1944 :* (ex ''L'Entreprenant''): Broken up 1944 :* (ex ''Le Farouche''): Scuttled while incomplete August 1944 :* (ex ''Le Corse''): Scuttled while incomplete August 1944 *Former French ''La Melpomène''-class torpedo boats taken over in April 1943 :* (ex ''Bombarde'') sunk by air raid 23 August 1944 in the Tyrrhenian Sea :* (ex ''La Pomone'') heavily damaged by off Lindos on 23 September 1943, later scuttled at Rhodes :* (ex ''L'Iphigénie'') sunk by Italian MAS boats at Piombino on 11 September 1943 :* (e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Torpedo Boat
A torpedo boat is a relatively small and fast naval ship designed to carry torpedoes into battle. The first designs were steam-powered craft dedicated to ramming enemy ships with explosive spar torpedoes. Later evolutions launched variants of self-propelled Whitehead torpedoes. These were inshore craft created to counter both the threat of battleships and other slow and heavily armed ships by using speed, agility, and powerful torpedoes, and the overwhelming expense of building a like number of capital ships to counter an enemy's. A swarm of expendable torpedo boats attacking en masse could overwhelm a larger ship's ability to fight them off using its large but cumbersome guns. A fleet of torpedo boats could pose a similar threat to an adversary's capital ships, albeit only in the coastal areas to which their small size and limited fuel load restricted them. The introduction of fast torpedo boats in the late 19th century was a serious concern to the era's naval strategists ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Surface Flotillas Of The Kriegsmarine
Surface flotillas of the Kriegsmarine were Organization of the Kriegsmarine, organizational groupings of List of Kriegsmarine ships, German naval vessels during World War II based on class of vessel and geographical location. Surface flotillas were not operationally deployed units, but functioned through the administrative command chain of the Kriegsmarine. Overview and higher command Surface flotillas were first formed in 1938 from preexisting surface divisions, some of which had existed since before the World War I, First World War. The surface flotillas were primarily used for mid to smaller class vessels, such as destroyers and minesweepers, while capital ships and heavy cruisers were considered "stand alone" vessels answering directly to a Organization of the Kriegsmarine#Navy Type Commands, vessel type commander. Surface flotilla commanders reported to a type commander for their particular class of vessel. The Fleet commander (Kriegsmarine), Fleet commander of the Kriegsm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Training Ship
A training ship is a ship used to train students as sailors. The term is mostly used to describe ships employed by navies to train future officers. Essentially there are two types: those used for training at sea and old hulks used to house classrooms. The hands-on aspect provided by sail training has also been used as a platform for everything from semesters at sea for undergraduate oceanography and biology students, marine science and physical science for high school students, to character building for at-risk youths. Notable training ships Royal Navy * * * * * * * ''Cornwall'' * * * * * * '' Indefatigable'' * , including adjacent * * * * '' Mount Edgcumbe'' * * * '' Warspite'' (1877) * '' Warspite'' (1922) * * '' Wellesley'' * Other navies * Algerian Navy ** '' El-Mellah'' * Argentine Navy ** ** * Bangladesh Navy ** BNS ''Shaheed Ruhul Amin'' * Brazilian Navy ** '' Cisne Branco'' * Bulgarian Navy ** * Royal Canadian Navy ** (sail training) ** ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
U-boat
U-boats were naval submarines operated by Germany, particularly in the First and Second World Wars. Although at times they were efficient fleet weapons against enemy naval warships, they were most effectively used in an economic warfare role ( commerce raiding) and enforcing a naval blockade against enemy shipping. The primary targets of the U-boat campaigns in both wars were the merchant convoys bringing supplies from Canada and other parts of the British Empire, and from the United States, to the United Kingdom and (during the Second World War) to the Soviet Union and the Allied territories in the Mediterranean. German submarines also destroyed Brazilian merchant ships during World War II, causing Brazil to declare war on both Germany and Italy on 22 August 1942. The term is an anglicised version of the German word ''U-Boot'' , a shortening of ''Unterseeboot'' ('under-sea-boat'), though the German term refers to any submarine. Austro-Hungarian Navy submarines were also ... [...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 unatte ... [...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 instanc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Steam Turbine
A steam turbine is a machine that extracts thermal energy from pressurized steam and uses it to do mechanical work on a rotating output shaft. Its modern manifestation was invented by Charles Parsons in 1884. Fabrication of a modern steam turbine involves advanced metalwork to form high-grade steel alloys into precision parts using technologies that first became available in the 20th century; continued advances in durability and efficiency of steam turbines remains central to the energy economics of the 21st century. The steam turbine is a form of heat engine that derives much of its improvement in thermodynamic efficiency from the use of multiple stages in the expansion of the steam, which results in a closer approach to the ideal reversible expansion process. Because the turbine generates rotary motion, it can be coupled to a generator to harness its motion into electricity. Such turbogenerators are the core of thermal power stations which can be fueled by fossil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
.jpg "Click for more on -> F-class Escort Ship")
.jpg "Click for more on -> Displacement (ship)")
.jpg "Click for more on -> Job Maseko")
.jpg "Click for more on -> Training Ship")
