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U-517
German submarine ''U-517'' was a Type IXC U-boat of the Nazi Germany's ''Kriegsmarine'' during World War II. She was laid down at the Deutsche Werft in Hamburg as yard number 313 on 5 June 1941, launched on 30 December 1941 and commissioned on 21 March 1942 with ''Kapitänleutnant'' Paul Hartwig in command. ''U-517'' began her service career with training as part of the 4th U-boat Flotilla from 21 March 1942. She was reassigned to the 10th flotilla for operations on 1 September. She carried out two patrols and sank eight ships. She was sunk by British carrier aircraft on 21 November 1942. Design German Type IXC submarines were slightly larger than the original Type IXBs. ''U-517'' had a displacement of when at the surface and while submerged. The U-boat had a total length of , a pressure hull length of , a beam of , a height of , and a draught of . The submarine was powered by two MAN M 9 V 40/46 supercharged four-stroke, nine-cylinder diesel engines producing a tota ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
German Type IX Submarine
The Type IX U-boat was designed by Nazi Germany's ''Kriegsmarine'' in 1935 and 1936 as a large ocean-going submarine for sustained operations far from the home support facilities. Type IX boats were briefly used for patrols off the eastern United States in an attempt to disrupt the stream of troops and supplies bound for Europe. It was derived from the Type IA and appeared in various sub-types. Type IXs had six torpedo tubes; four at the bow and two at the stern. They carried six reloads internally and had five external torpedo containers (three at the stern and two at the bow) which stored ten additional torpedoes. The total of 22 torpedoes allowed U-boat commanders to follow a convoy and strike night after night. Some of the IXC boats were fitted for mine operations; as mine-layers they could carry 44 TMA or 60 TMB mines. Secondary armament was provided by one deck gun with 180 rounds. Anti-aircraft armament differed throughout the war. They had two periscopes in the tow ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
10th U-boat Flotilla
The 10th U-boat Flotilla ( German ''10. Unterseebootsflottille'') was a German U-boat flotilla used for front-line combat purposes during World War II. Founded on 15 January 1942 at Lorient under the command of ''Korvettenkapitän'' Günther Kuhnke, eighty U-boats, including two captured Dutch submarines, operated with this flotilla before it was dissolved on 21 August 1944, and the remaining U-boats were moved to bases in Norway and Germany. Kuhnke himself took command of , the last U-boat to leave, on 27 August 1944 to sail to Flensburg where he assumed command of 33rd U-boat Flotilla ''33rd U-boat Flotilla'' ("33. Unterseebootsflottille") was a front-line unit of Nazi Germany's ''Kriegsmarine'' during World War II. The flotilla was founded at Flensburg in September 1944 under the command of ''Korvettenkapitän'' Georg Schewe .... U-boats assigned * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
4th U-boat Flotilla
The 4th U-boat Flotilla ( German ''4. Unterseebootsflottille'') was formed in May 1941 in Stettin Szczecin ( , , ; ; ; or ) is the capital and largest city of the West Pomeranian Voivodeship in northwestern Poland. Located near the Baltic Sea and the German border, it is a major seaport, the largest city of northwestern Poland, and se ... under the command of '' Kapitänleutnant'' Werner Jacobsen. Nearly 300 boats received their basic training here. It was disbanded in May 1945. Commanders U-boats References * * 04 Military units and formations of the Kriegsmarine Military units and formations established in 1941 Military units and formations disestablished in 1945 {{Germany-mil-unit-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nazi Germany
Nazi Germany, officially known as the German Reich and later the Greater German Reich, was the German Reich, German state between 1933 and 1945, when Adolf Hitler and the Nazi Party controlled the country, transforming it into a Totalitarianism, totalitarian dictatorship. The Third Reich, meaning "Third Realm" or "Third Empire", referred to the Nazi claim that Nazi Germany was the successor to the earlier Holy Roman Empire (800–1806) and German Empire (1871–1918). The Third Reich, which the Nazis referred to as the Thousand-Year Reich, ended in May 1945, after 12 years, when the Allies of World War II, Allies defeated Germany and entered the capital, Berlin, End of World War II in Europe, ending World War II in Europe. After Hitler was appointed Chancellor of Germany in 1933, the Nazi Party began to eliminate political opposition and consolidate power. A 1934 German referendum confirmed Hitler as sole ''Führer'' (leader). Power was centralised in Hitler's person, an ... [...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 sides 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 cora ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ship Commissioning
Ship commissioning is the act or ceremony of placing a ship in active service and may be regarded as a particular application of the general concepts and practices of project commissioning. The term is most commonly applied to placing a warship in active duty with its country's military forces. The ceremonies involved are often rooted in centuries-old naval tradition. Ship naming and launching endow a ship hull with her identity, but many milestones remain before it is completed and considered ready to be designated a commissioned ship. The engineering plant, weapon and Electronics, electronic systems, Galley (kitchen), galley, and other equipment required to transform the new hull into an operating and habitable warship are installed and tested. The prospective commanding officer, ship's officers, the petty officers, and seamen who will form the crew report for training and familiarization with their new ship. Before commissioning, the new ship undergoes sea trials to identify a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kapitänleutnant
, short: KptLt/in lists: KL, ( or ''lieutenant captain'') is an officer grade of the captains' military hierarchy group () of the modern German . The rank is rated Ranks and insignia of NATO navies' officers, OF-2 in NATO, and equivalent to in the German Army, Heer and German Air Force, Luftwaffe. It is grade A11 or A12 in the pay rules of the Federal Ministry of Defence (Germany), Federal Ministry of Defence. The rank first appeared in the German Empire and continued in use through the Weimar Republic and into the Nazi Germany, Third Reich. Address In line with ZDv 10/8, the formal manner of addressing people with the rank is "''Herr/Frau Kapitänleutnant''". However, in German tradition and in line with seamen's language, the title is abbreviated to "''Herr/Frau Kaleu''" in verbal communication (contemporary usage). Historically, in the Wehrmacht, the abbreviation spoken was "''Herr Kaleun''". Rank and assignment The United States Navy's rank of Lieutenant (navy), lieute ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
German Type IXB Submarine
The German Type IXB submarine was a sub-class of the German Type IX submarine built for Nazi Germany's ''Kriegsmarine'' between 1938 and 1940. The U-boats themselves were designed to be fairly large ocean-going submarines. The inspiration for the Type IXB submarine came from the earlier original Type IX submarine, the Type IXA submarine. The design of the IXA was developed to give an increased range, a change which resulted in a slightly heavier overall tonnage. This design was improved even further in the later Type IXC submarines. The class comprised 14 submarines, , , , , , , , , , , , , , and ; twelve were sunk during the war and two scuttled by their crews at the end of the war. The Type IXB submarines were the most successful class of submarine in the war in terms of the total amount to tonnage sunk, with each U-boat sinking an average of over during its career. Design and construction Construction All Type IXB submarines were ordered by the Nazi Germany's ''Kriegsmarine ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
MAN SE
MAN SE (abbreviation of ''Maschinenfabrik Augsburg- Nürnberg'', ) was a manufacturing and engineering company based in Munich, Germany. Its primary output was commercial vehicles and diesel engines through its MAN Truck & Bus and MAN Latin America divisions, and participation in the manufacturer Sinotruk. MAN SE was majority-owned by Traton, the heavy commercial vehicle subsidiary of automaker Volkswagen AG, until August 2021 when Traton completed a squeeze-out of all remaining shareholders and formally merged MAN SE into Traton SE, meaning the former subsidiaries of MAN SE were now directly owned by Traton, and MAN SE ceased to exist. History Foundation MAN traces its origins back to 1758, when the "St. Antony" ironworks commenced operation in Oberhausen, as the first heavy-industry enterprise in the Ruhr region. In 1808, the three ironworks "St. Antony", "Gute Hoffnung" (English: "Good Hope"), and "Neue Essen" (English: "New Forges") merged, to form the Hütte ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Draught (ship)
The draft or draught of a ship is a determined depth of the vessel below the waterline, measured vertically to its hull (watercraft), 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 line (vessel), 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 (watercraft), hull, propellers, or other reference point". That is, the draft or draught is the maximum depth (coordinate), depth of any part of the vessel, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Keel Laying
Laying the keel or laying down is the formal recognition of the start of a shipbuilding, ship's construction. It is often marked with a ceremony attended by dignitaries from the shipbuilding company and the ultimate owners of the ship. Keel laying is one of the four specially celebrated events in a ship's life; the others are Ceremonial ship launching, launching, Ship commissioning, commissioning, and Ship decommissioning, decommissioning. Earlier, the event recognized as the keel laying was the initial placement of the central timber making up the backbone of a vessel, called the keel. As steel ships replaced wooden ones, the central timber gave way to a central steel beam. Modern ships are most commonly built in a series of pre-fabricated, complete hull sections rather than around a single keel. The event recognized as the keel laying is the first joining of modular components, or the lowering of the first module into place in the building dock. It is now often called "keel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Supercharged
In an internal combustion engine, a supercharger compresses the intake gas, forcing more air into the engine in order to produce more power for a given displacement. It is a form of forced induction that is mechanically powered (usually by a belt from the engine's crankshaft), as opposed to a turbocharger, which is powered by the kinetic energy of the exhaust gases. However, up until the mid-20th century, a turbocharger was called a "turbosupercharger" and was considered a type of supercharger. The first supercharged engine was built in 1878, with usage in aircraft engines beginning in the 1910s and usage in car engines beginning in the 1920s. In piston engines used by aircraft, supercharging was often used to compensate for the lower air density at high altitudes. Supercharging is less commonly used in the 21st century, as manufacturers have shifted to turbochargers to reduce fuel consumption and increase power outputs, especially with reduced engine displacements. Desi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
