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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] |
Type I Submarine
The Type I U-boat was the first post–World War I attempt to produce an oceangoing submarine for Nazi Germany's ''Kriegsmarine''. The type was based on the TCG Gür (1936), Spanish Type E-1 and Finnish Finnish submarine Vesikko, CV707, which were both designed by Ingenieurskantoor voor Scheepsbouw.Rössler (2001), pp. 98-99. Only two Type IAs were built.Showell (2006), p. 73. They were not a successful design : due to its single rudder they had a large turning circle and were not very manoeuvrable. The gravity center of the U-boat was too forward so on the surface the type I had its propellers exposed when she was pitching. Whilst submerged there were problems with depth keeping and stability as air bubbles in the fuel tanks wobbled back and forth. Diving was very slow: at full speed and with six tons of negative buoyancy it took forty seconds to reach ten metres depth. As a result, the type was discontinued and the new Type IX submarine, type IX class of ocean-going U-boats was ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pressure Hull
A submarine hull has two major components, the ''superstructure'' and the ''pressure hull''. The external portion of a submarine’s hull—that part that does not resist sea pressure and is free-flooding—is known as the “superstructure” in American submarine terminology and the “casing” in British submarine terminology. It is sometimes also referred to as the “light hull” or other descriptive terms. The superstructure (''casing'' in British usage) of a submarine is the outer non-watertight, “free-flooding” hull which provides a hydrodynamically efficient shape. The pressure hull is the inner hull of a submarine that resists sea pressure and maintains the submarine’s structural integrity at (operating) depth. Shapes Modern submarines are usually cigar-shaped. This design, already visible on very early submarines, is called a " teardrop hull". It is structurally efficient for withstanding external pressure, and significantly reduces the hydrodynamic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chicago
Chicago is the List of municipalities in Illinois, most populous city in the U.S. state of Illinois and in the Midwestern United States. With a population of 2,746,388, as of the 2020 United States census, 2020 census, it is the List of United States cities by population, third-most populous city in the United States after New York City and Los Angeles. As the county seat, seat of Cook County, Illinois, Cook County, the List of the most populous counties in the United States, second-most populous county in the U.S., Chicago is the center of the Chicago metropolitan area, often colloquially called "Chicagoland" and home to 9.6 million residents. Located on the shore of Lake Michigan, Chicago was incorporated as a city in 1837 near a Chicago Portage, portage between the Great Lakes and the Mississippi River, Mississippi River watershed. It grew rapidly in the mid-19th century. In 1871, the Great Chicago Fire destroyed several square miles and left more than 100,000 homeless, but ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Museum Of Science And Industry (Chicago)
The Museum of Science and Industry (MSI), since 2024, the Kenneth C. Griffin Museum of Science and Industry, is a science museum located in Chicago, Illinois, in Jackson Park (Chicago), Jackson Park, in the Hyde Park, Chicago, Hyde Park neighborhood between Lake Michigan and The University of Chicago. It is housed in the Palace of Fine Arts from the 1893 World's Columbian Exposition. Initially endowed by Sears, Roebuck and Company president and philanthropist Julius Rosenwald and supported by the Commercial Club of Chicago, it opened in 1933 during the Century of Progress, Century of Progress Exposition. It was renamed for benefactor and financier Kenneth C. Griffin on May 19, 2024. Among the museum's most notable exhibits are a full-size replica coal, coal mine, submarine captured during World War II, a United Airlines Boeing 727, the ''Pioneer Zephyr'' (the first streamlined diesel-powered passenger train in the US); the command module of the Apollo 8 spacecraft, and a model ra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gulf Of Mexico
The Gulf of Mexico () is an oceanic basin and a marginal sea of the Atlantic Ocean, mostly surrounded by the North American continent. It is bounded on the northeast, north, and northwest by the Gulf Coast of the United States; on the southwest and south by the Mexican states of Tamaulipas, Veracruz, Tabasco, Campeche, Yucatán, and Quintana Roo; and on the southeast by Cuba. The coastal areas along the Southern U.S. states of Texas, Louisiana, Mississippi, Alabama, and Florida, which border the Gulf on the north, are occasionally referred to as the "Third Coast" of the United States (in addition to its Atlantic and Pacific coasts), but more often as "the Gulf Coast". The Gulf of Mexico took shape about 300 million years ago (mya) as a result of plate tectonics. The Gulf of Mexico basin is roughly oval and is about wide. Its floor consists of sedimentary rocks and recent sediments. It is connected to part of the Atlantic Ocean through the Straits of Florida between the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
U-505 Engine Gauge Telegraph
U5 or U-5 may refer to: Biochemistry * U5 spliceosomal RNA * mtDNA haplogroup U5, within Haplogroup U Transport Aviation * SkyUp MT (IATA code U5), a Maltese airline subsidiary of SkyUp Airlines * Karinou Airlines (former IATA code: U5), former airline of the Central African Republic * USA3000 Airlines (former IATA code: U5), former airline based in Pennsylvania, US Land transport * U5 (Berlin U-Bahn), a subway line in Germany * U-5, a Munich U-Bahn subway line in Germany * Aiways U5, a 2019 Chinese electric car model * Luxgen U5, a 2017 Taiwanese car model * Utah State Route 5 (other), one of two American highways * Beijing U5, a Chinese car Submarines * German submarine ''U-5'', several submarines ** SM ''U-5'' (Germany), the lead boat of the class * ''U-5''-class submarine (Austria-Hungary), a class of three built 1908–1911 ** SM ''U-5'' (Austria-Hungary), the class's lead boat Other uses * U5, a music partnership between the X5 Music Group and Univers ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Günter Hessler
Günter Hessler (14 June 1909 – 4 April 1968) was a German naval officer during World War II. He commanded the Type IXB U-boat , sinking twenty-one ships on three patrols, totalling of Allied shipping. Hessler was a recipient of the Knight's Cross of the Iron Cross and was commissioned after the war to write an account of the U-boat war by the British Ministry of Defence. Military career Günter Hessler joined the '' Reichsmarine'' of the Weimar Republic on 5 April 1927 as a member of "Crew 1927" (the incoming class of 1927). He underwent basic military training in the 8th company, 2nd department of the standing ship division of the Baltic Sea in Stralsund (5 April 1927 – 3 July 1927). Hessler was then transferred to the training ship SSS ''Niobe'' (4 July 1927 – 31 October 1927), attaining the rank of ''Seekadett'' (midshipman) on 1 October 1927. After more than 16 months aboard the light cruiser (1 November 1927 – 17 March 1929) he underwent officer cad ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Freetown
Freetown () is the Capital city, capital and largest city of Sierra Leone. It is a major port city on the Atlantic Ocean and is located in the Western Area of the country. Freetown is Sierra Leone's major urban, economic, financial, cultural, educational and political centre, as it is the seat of the Government of Sierra Leone. The population of Freetown was 1,347,559 as of the 2024 census. The city's economy revolves largely around its harbour, which occupies a part of the estuary of the Sierra Leone River in one of the world's largest natural deep water harbours. Although the city has traditionally been the homeland of the Sierra Leone Creole people, the population of Freetown is ethnically, culturally, and religiously diverse. The city is home to a significant population of all of Sierra Leone's Ethnic groups in Sierra Leone, ethnic groups, with no single ethnic group forming more than 27% of the city's population. As in virtually all parts of Sierra Leone, the Krio language ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Laconia Incident
The ''Laconia'' incident was a series of events surrounding the sinking of a British passenger ship in the Atlantic Ocean on 12 September 1942, during World War II, and a subsequent aerial attack on German and Italian submarines involved in rescue attempts. , carrying 2,732 crew, passengers, soldiers, and prisoners of war, was torpedoed and sunk by , a German U-boat, off the West African coast. Operating partly under the dictates of the old prize rules, the U-boat's commander, Werner Hartenstein, immediately commenced rescue operations. ''U-156'' broadcast her position on open radio channels to all Allied powers nearby, and was joined by several other U-boats in the vicinity. After surfacing and picking up survivors, who were accommodated on the foredeck, ''U-156'' headed on the surface under Red Cross banners to rendezvous with Vichy French ships and transfer the survivors. En route, the U-boat was spotted by a B-24 Liberator bomber of the US Army Air Forces. The ai ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Red Cross
The organized International Red Cross and Red Crescent Movement is a Humanitarianism, humanitarian movement with approximately 16million volunteering, volunteers, members, and staff worldwide. It was founded to protect human life and health, to ensure respect for all human beings, and to prevent and alleviate human suffering. History Foundation Until the middle of the nineteenth century, there were no organized or well-established army nursing systems for casualties, nor safe or protected institutions, to accommodate and treat those who were wounded on the battlefield. A devout Calvinism, Calvinist, the Swiss businessman Jean-Henri Dunant traveled to Italy to meet then-French emperor Napoleon III in June 1859 with the intention of discussing difficulties in conducting business in French Algeria, Algeria, which at that time was occupied by France. He arrived in the small town of Solferino on the evening of 24 June after the Battle of Solferino, an engagement in the Second Itali ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Operation Drumbeat
The Second Happy Time (; officially (), and also known among German submarine commanders as the "American Shooting Season") was a phase in the Battle of the Atlantic during which Axis submarines attacked merchant shipping and Allied naval vessels along the east coast of North America. The First Happy Time was in 1940–41 in the North Atlantic and North Sea. Adolf Hitler and Benito Mussolini declared war on the United States on 11 December 1941, and as a result their navies could begin the Second Happy Time. The Second Happy Time lasted from January 1942 to about August of that year and involved several German naval operations, including Operation Neuland. German submariners named it the "Happy Time" or the "Golden Time", as defense measures were weak and disorganized, and the U-boats were able to inflict massive damage with little risk. During this period, Axis submarines sank 609 ships totaling , against a loss of only 22 U-boats. This led to the loss of thousands of li ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reinhard Hardegen
''Korvettenkapitän'' Reinhard Hardegen (18 March 1913 – 9 June 2018) was a German U-boat commander during World War II. He was credited with the sinking of 25 ships (two were later refloated), at a total of 136,661 tons. After the war, he spent a year and a half as a British prisoner-of-war before starting a successful oil trading business and serving as a member of Bremen's Landtag, city council (the ''Bürgerschaft of Bremen, Bürgerschaft'') for over 32 years. World War II Hardegen served as ''1.WO'' (First Watch Officer) under ''Kapitänleutnant'' Georg-Wilhelm Schulz aboard and, after two war patrols, was given his own command, the German Type II submarine, Type IID U-boat , operating out of Kiel, on 11 December 1940. The boat was ready for its first patrol shortly before the new year and, after visiting the U-boat base in Bergen, ''U-147'' was ordered to patrol the convoy routes north of the Hebrides. On the second day of the patrol, Hardegen fired a torpedo which fai ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
