180 relations: Aces of the Deep, Action of 22 September 1914, Air-independent propulsion, Alan Turing, Allies of World War I, Allies of World War II, Americas, Anglo-German Naval Agreement, Arctic, Arms race, Atlantic Ocean, August Howaldt, Austria-Hungary, Austro-Hungarian Navy, Baltic Sea, Battle of Jutland, Battle of the Atlantic, Battleship, Beachy Head, Bell Island (Newfoundland and Labrador), Biber (submarine), Blockade, Bold (decoy), Bombe, Brandtaucher, British Empire, Cargo ship, Coastal submarine, Colin Grazier, Commerce raiding, Computer, Cruiser, Das Boot, Deck gun, Depth charge, Destroyer, Detonation, Deutsches Museum, Diesel engine, Diplomacy, Dredging, Engineer, Enigma machine, Escort carrier, Fanfare (decoy), Ferromagnetism, Foxer, Friedrich Krupp Germaniawerft, Fuel cell, G7e torpedo, ..., G7es torpedo, Gal-class submarine, Gallipoli Campaign, German Navy, German Type I submarine, German Type II submarine, German Type IX submarine, German Type Mittel U submarine, German Type U 139 submarine, German Type U 151 submarine, German Type U 31 submarine, German Type U 66 submarine, German Type UB I submarine, German Type UB II submarine, German Type UB III submarine, German Type UC I submarine, German Type UC II submarine, German Type UC III submarine, German Type UE I submarine, German Type UE II submarine, German Type VII submarine, German Type X submarine, German Type XIV submarine, German Type XVII submarine, Grand Fleet, Gulf of Mexico, Hai (midget submarine), Harwich, Hedgehog (weapon), Herbert Werner, High Seas Fleet, High-frequency direction finding, Hydrogen, Hydrogen peroxide, Invention, Israeli Navy, Karl Dönitz, Karp-class submarine, Körting Hannover, Kerosene, Kiel, Kobold, Kriegsmarine, Leigh light, List of Knight's Cross of the Iron Cross recipients of the U-boat service, List of most successful U-boat commanders, List of successful U-boats, List of U-boats never deployed, List of U-boats of Germany, Loch Ryan, Londonderry Port, Magnetic anomaly detector, Magnetic pistol, Midget submarine, Molch, Monsun Gruppe, Museum of Science and Industry (Chicago), Museum ship, Naval mine, Newfoundland and Labrador, Nuclear submarine, Operation Weserübung, Ore, Orkney Wireless Museum, Paris Peace Conference, 1919, Penang, Pre-dreadnought battleship, Prize rules, Q-ship, Radar, Reinhard Scheer, Royal Navy, Russian submarine Forel, Russo-Japanese War, Seehund, Shock wave, Sieglinde (decoy), Sinking of the RMS Lusitania, SM U-1 (Germany), SM U-13, SM U-142, SM U-16 (Germany), SM U-17 (Germany), SM U-19 (Germany), SM U-2 (Germany), SM U-23 (Germany), SM U-27 (Germany), SM U-3 (Germany), SM U-43 (Germany), SM U-5 (Germany), SM U-51, SM U-57, SM U-63 (Germany), SM U-9, Sonar, Soviet Union, Steel, Stephen King-Hall, Strategic bombing, Submarine, Submarine snorkel, Submarine warfare, Sussex pledge, T11 torpedo, Thorsten Nordenfelt, Tony Fasson, Torpedo, Treaty of Versailles, Turkey, Type 201 submarine, Type 205 submarine, Type 206 submarine, Type 209 submarine, Type 212 submarine, Type 214 submarine, Type XXI submarine, Type XXIII submarine, U-boat Campaign (World War I), Uncompleted U-boat projects, United States Armed Forces, United States Navy, Unrestricted submarine warfare, Wilhelm Bauer, Wilhelm II, German Emperor, Winston Churchill, Wolfgang Petersen, Wolfpack (naval tactic), World War I, World War II, 7th Cruiser Squadron (United Kingdom). Expand index (130 more) » « Shrink index
Aces of the Deep is a World War II submarine simulator game developed and published by Dynamix for the PC DOS in 1994.
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The Action of 22 September 1914 was a naval engagement that took place during the First World War, in which three obsolete British Royal Navy cruisers, manned mainly by reservists and sometimes referred to as the "livebait squadron", were sunk by one German submarine while on patrol.
Air-independent propulsion (AIP) is any marine propulsion technology that allows a non-nuclear submarine to operate without access to atmospheric oxygen (by surfacing or using a snorkel).
Alan Mathison Turing, OBE, FRS (23 June 1912 – 7 June 1954) was a British pioneering computer scientist, mathematician, logician, cryptanalyst, theoretical biologist, and marathon and ultra distance runner.
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The Allies of World War I, also known as the Entente Powers, were the countries that opposed the Central Powers during the First World War.
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The Allies of World War II, called the United Nations from the 1 January 1942 declaration, were the countries that opposed the Axis powers together during the Second World War (1939–1945).
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The Americas, or America,"America." The Oxford Companion to the English Language (ISBN 0-19-214183-X).
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The Anglo-German Naval Agreement of June 18, 1935, was a naval agreement between Britain and Germany regulating the size of the Kriegsmarine in relation to the Royal Navy.
The Arctic (f) is a polar region located at the northernmost part of the Earth.
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An arms race, in its original usage, is a competition between two or more parties to have the best armed forces.
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The Atlantic Ocean is the second largest of the world's oceanic divisions, following the Pacific Ocean.
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August Ferdinand Howaldt (23 October 1809 – 4 August 1883) was a German engineer and ship builder.
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Austria-Hungary (Österreich-Ungarn; Osztrák-Magyar Monarchia), also known by other names and often referred to as the Austro-Hungarian Empire in English-language sources, was a constitutional union of the Empire of Austria and the Kingdom of Hungary that existed from 1867 to 1918, when it collapsed as a result of defeat in World War I. The union was a result of the Compromise of 1867 and came into existence on 30 March 1867, when the compromise was ratified by the Hungarian parliament.
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The Austro-Hungarian Navy was the naval force of Austria-Hungary.
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The Baltic Sea is a sea of the Atlantic Ocean, enclosed by Scandinavia, Finland, the Baltic countries, and the North European Plain.
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The Battle of Jutland (Skagerrakschlacht) was a naval battle fought by the British Royal Navy's Grand Fleet under Admiral Sir John Jellicoe against the Imperial German Navy's High Seas Fleet under Vice-Admiral Reinhard Scheer during the First World War.
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The Battle of the Atlantic was the longest continuous military campaign in World War II, running from 1939 to the defeat of Germany in 1945.
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A battleship is a large armored warship with a main battery consisting of heavy caliber guns.
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Beachy Head is a chalk headland in East Sussex, England.
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Bell Island is a Canadian island located off Newfoundland's Avalon Peninsula in Conception Bay.
The Biber (German for "beaver") was a German midget submarine of the Second World War.
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A blockade is an effort to cut off supplies, war material or communications from a particular area by force, either in part or totally.
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Bold (a term derived from kobold) was a German sonar decoy, used by U-boats during the Second World War from 1942 onwards.
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The bombe was an electromechanical device used by British cryptologists to help decipher German Enigma-machine-encrypted secret messages during World War II.
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Brandtaucher (German for Fire-diver) was a submersible designed by the Bavarian inventor and engineer Wilhelm Bauer and built by Schweffel & Howaldt in Kiel for Schleswig-Holstein's Flotilla (part of the Reichsflotte) in 1850.
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The British Empire comprised the dominions, colonies, protectorates, mandates and other territories ruled or administered by the United Kingdom.
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A cargo ship or freighter is any sort of ship or vessel that carries cargo, goods, and materials from one port to another.
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A coastal submarine is a small, maneuverable submarine with shallow draft well suited to navigation of coastal channels and harbors.
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Able Seaman Colin Grazier, GC was posthumously awarded the George Cross for the "outstanding bravery and steadfast devotion to duty in the face of danger" which he displayed on 30 October 1942 in action in the eastern Mediterranean when capturing codebooks vital for the breaking of the German naval "Shark" Enigma cipher from the sinking U-559.
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Commerce raiding is a form of naval warfare used to destroy or disrupt logistics of the enemy on the open sea by attacking its merchant shipping, rather than engaging its combatants or enforcing a blockade against them.
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A computer is a general-purpose device that can be programmed to carry out a set of arithmetic or logical operations automatically.
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A cruiser is a type of warship.
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Das Boot (German meaning "The Boat") is a 1981 German epic war film written and directed by Wolfgang Petersen, produced by Günter Rohrbach, and starring Jürgen Prochnow, Herbert Grönemeyer and Klaus Wennemann.
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A deck gun is a type of artillery cannon mounted on the deck of a ship or submarine.
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A depth charge is an anti-submarine warfare (ASW) weapon intended to destroy or cripple a target submarine by being dropped into the water close to its target and detonating, subjecting the target to a powerful and destructive hydraulic shock.
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In naval terminology, a destroyer is a fast maneuverable long-endurance warship intended to escort larger vessels in a fleet, convoy or battle group and defend them against smaller powerful short-range attackers.
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Detonation is a type of combustion involving a supersonic exothermic front accelerating through a medium that eventually drives a shock front propagating directly in front of it.
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The Deutsches Museum (German Museum) (or Das Deutsche Museum) The English language expression "the Deutsches Museum" is a troublesome translation, because it uses a declension that is grammatically inappropriate in both English (which normally lacks such declensions) and German (which would use a different declension).
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The diesel engine (also known as a compression-ignition or 'CI' engine) is an internal combustion engine in which ignition of the fuel that has been injected into the combustion chamber is initiated by the high temperature which a gas achieves when greatly compressed (adiabatic compression).
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Diplomacy (from the Greek δίπλωμα, meaning making a deal with other countries) is the art and practice of conducting negotiations between representatives of states.
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Dredging is an excavation activity usually carried out at least partly underwater, in shallow seas or freshwater areas with the purpose of gathering up bottom sediments and disposing of them at a different location.
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An engineer is a professional practitioner of engineering, concerned with applying scientific knowledge, mathematics, and ingenuity to develop solutions for technical, societal and commercial problems.
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An Enigma machine was a series of electro-mechanical rotor cipher machines developed and used in the early to early-mid twentieth century for commercial and military usage.
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The escort carrier or escort aircraft carrier (hull classification symbol CVE), also called a "jeep carrier" or "baby flattop" in the United States Navy (USN) or "Woolworth Carrier" by the Royal Navy, was a small and slow type of aircraft carrier used by the Royal Navy, the Imperial Japanese Navy and Imperial Japanese Army Air Force, and the United States Navy in World War II.
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The T-Mk 6 Fanfare is a towed sonar decoy developed after the Second World War by the United States Navy.
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Ferromagnetism is the basic mechanism by which certain materials (such as iron) form permanent magnets, or are attracted to magnets.
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Foxer was the codename for a British built acoustic decoy, used to confuse German acoustic homing torpedoes like the G7es torpedo during the Second World War.
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Friedrich Krupp Germaniawerft (often just called Germaniawerft, "Germania shipyard") was a German shipbuilding company, located in the harbour at Kiel, and one of the largest and most important builders of U-boats for the Kaiserliche Marine in World War I and the Kriegsmarine in World War II.
A fuel cell is a device that converts the chemical energy from a fuel into electricity through a chemical reaction of positively charged hydrogen ions with oxygen or another oxidizing agent.
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The G7e or more appropriately the G7e/T2, G7e/T3, and G7e/T4 Falke torpedoes were, with the exception of the T4 model, the standard torpedoes for Germany during World War II.
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The G7es (TV) "Zaunkönig" (wren in German) was an acoustic torpedo employed by German U-boats during World War II.
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The Type 540 Gal-class submarine is a slightly modified variant of the German HDW Type 206 submarine class (which includes the distinctive dome, or bulge, in the front of the boat), modified for Israeli requirements.
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The Gallipoli Campaign, also known as the Dardanelles Campaign, the Battle of Gallipoli or the Battle of Çanakkale (Çanakkale Savaşı), was a campaign of World War I that took place on the Gallipoli peninsula (Gelibolu in modern Turkey) in the Ottoman Empire between 25 April 1915 and 9 January 1916.
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The Type I U-boat was the first post–World War I attempt by Nazi Germany's Kriegsmarine to produce an oceangoing submarine.
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The Type II U-boat was designed by Germany as a coastal U-boat, modeled after the CV-707 submarine, which was designed by the Dutch dummy company NV Ingenieurskantoor voor Scheepsbouw den Haag (I.v.S) (set up by Germany after World War I in order to maintain and develop German submarine technology and to circumvent the limitations set by the Treaty of Versailles) and built in 1933 by the Finnish Crichton-Vulcan shipyard in Turku, Finland.
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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.
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Mittel U was a class of U-boats built during World War I by the Kaiserliche Marine.
U-139, originally designated "Project 46", was a class of large, long-range U-boats built during World War I by the Kaiserliche Marine.
Type U 151 U-boats were a class of large, long-range submarines constructed during World War I by the Kaiserliche Marine.
U 31 was a class of U-boats built during World War I by the Kaiserliche Marine.
The Type U 66 was a class of five submarines or U-boats operated by the German Imperial Navy (Kaiserliche Marine) during World War I. The class is alternately referred to as the U-66-class or the Type UD.
The Type UB I was a class of small coastal submarines (U-boats) built in Germany at the beginning of the First World War.
The UB II type submarine was a class of U-boat built during World War I by the German Imperial Navy.
The Type UB III submarine was a class of U-boat built during World War I by the German Imperial Navy.
The Type UC I coastal submarines were a class of small minelaying U-boats built in Germany during the early part of World War I. They were the first operational minelaying submarines in the world (although the Russian submarine ''Krab'' was laid down earlier).
Type UC II minelaying submarines were used by the Imperial German Navy during World War I. They displaced 417 tons, carried guns, 7 torpedoes and up to 18 mines.
Type UC III minelaying submarines were used by the Imperial German Navy (Kaiserliche Marine) during World War I. They displaced at the surface and submerged, carried guns, 7 torpedoes and up to 14 mines.
The German Type UE I submarine was an ocean-going single-hull submarine with saddle tanks built by AG Vulkan in Hamburg and Kaiserliche Werft Danzig.
The Type UE II submarines were a class of submarines built by the German Empire during World War I as long-range mine-layers.
Type VII U-boats were the most common type of German World War II U-boat.
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Type X (XB) U-boats were a special type of German submarine (U-boat).
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The Type XIV U-boat was a modification of the Type IXD, designed to resupply other U-boats.
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The Type XVII U-boats were small coastal submarines which used Hellmuth Walter's high test peroxide propulsion system, which offered a combination of air-independent propulsion and high submerged speeds.
The Grand Fleet was the main fleet of the British Royal Navy during the First World War.
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The Gulf of Mexico (Golfo de México) is an ocean basin largely surrounded by the North American continent.
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The Hai (shark) was an advanced model of the ''Marder''-class midget submarines created in Germany during World War II and operated by the K-Verband.
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Harwich is a town in Essex, England and one of the Haven ports, located on the coast with the North Sea to the east.
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The Hedgehog (also known as an Anti-Submarine Projector) was a forward-throwing anti-submarine weapon that was used during the Battle of the Atlantic in the Second World War.
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Herbert A. Werner (13 May 1920 – 6 April 2013) was a Kriegsmarine officer who, by his own reckoning, was one of only about "two dozen captains still alive" at the end of World War II.
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The High Seas Fleet (Hochseeflotte) was the battle fleet of the German Imperial Navy and saw action during World War I. The formation was created in February 1907, when the Home Fleet (Heimatflotte) was renamed as the High Seas Fleet.
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High-frequency direction finding, usually known by its abbreviation HF/DF or nickname huff-duff, is the common name for a type of radio direction finder (RDF) introduced in World War II.
Hydrogen is a chemical element with chemical symbol H and atomic number 1.
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Hydrogen peroxide is a chemical compound with the formula.
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An invention is a unique or novel device, method, composition or process.
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The Israeli Navy (חיל הים הישראלי, Ḥeil HaYam HaYisraeli (English: Sea Corps); البحرية الإسرائيلية) is the naval warfare service arm of the Israel Defense Forces, operating primarily in the Mediterranean Sea theater as well as the Gulf of Aqaba and the Red Sea theater.
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Karl Dönitz (16 September 1891 – 24 December 1980), sometimes spelt Doenitz in English, was a German admiral who played a major role in the Naval history of World War II.
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The Karp class were a class of submarines built by Krupp Germaniawerft for the Imperial Russian Navy.
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Körting Hannover AG (previously Körting Brothers AG) is a long-standing industrial engineering company in Hanover.
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Kerosene, also known as lamp oil, is a combustible hydrocarbon liquid widely used as a fuel in industry and households.
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Kiel is the capital and most populous city in the northern German state of Schleswig-Holstein, with a population of 240,832 (June 2014).
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The kobold (occasionally cobold) is a sprite stemming from Germanic mythology and surviving into modern times in German folklore.
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The Kriegsmarine (War Navy) was the navy of Nazi Germany from 1935 to 1945.
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The Leigh Light (abbreviated L/L) was a British World War II era anti-submarine device used in the Second Battle of the Atlantic.
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The Knight's Cross of the Iron Cross (German: Ritterkreuz des Eisernen Kreuzes) and its variants was the highest award in the military of the Third Reich.
The list of most successful U-boat commanders contains the top-scoring German U-boat commanders in the two World Wars based on their total tonnage sunk.
List of successful U-boats contains lists of the most successful German U-boats in the two World Wars based on total tonnage.
During the Second World War, the German Navy built over a thousand U-boats or submarines for service in the Battle of the Atlantic and elsewhere.
Germany had commissioned over 1,500 U-boats (Unterseeboot) into its various navies from 1906 to the present day.
Loch Ryan (Gaelic: Loch Rìoghaine, pronounced) is a Scottish sea loch that acts as an important natural harbour for shipping, providing calm waters for ferries operating between Scotland and Northern Ireland.
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Londonderry Port is a port at Lisahally in County Londonderry, Northern Ireland.
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A magnetic anomaly detector (MAD) is an instrument used to detect minute variations in the Earth's magnetic field.
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Magnetic pistol is the term for the device on a torpedo or naval mine that detects its target by its magnetic field, and triggers the fuse for detonation.
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A midget submarine (also called a mini submarine) is any submarine under 150 tons typically operated by a crew of one or two but sometimes up to 6 or 9, with little or no on-board living accommodation.
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The Molch (German language: "newt" or "salamander") was an unsuccessful, one-man series of German midget submarines created during World War II.
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The Gruppe Monsun or Monsoon Group was a force of German U-boats (submarines) that operated in the Pacific and Indian Oceans during World War II.
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The Museum of Science and Industry (MSI) is located in Chicago, Illinois, in Jackson Park, in the Hyde Park neighborhood between Lake Michigan and The University of Chicago.
A museum ship, or sometimes memorial ship, is a ship that has been preserved and converted into a museum open to the public, for educational or memorial purposes.
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A naval mine is a self-contained explosive device placed in water to damage or destroy surface ships or submarines.
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Newfoundland and Labrador (Terre-Neuve-et-Labrador) is the most easterly province of Canada.
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A nuclear submarine is a submarine powered by a nuclear reactor.
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Operation Weserübung was the code name for Germany's assault on Denmark and Norway during the Second World War and the opening operation of the Norwegian Campaign.
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An ore is a type of rock that contains sufficient minerals with important elements including metals that can be economically extracted from the rock.
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The Orkney Wireless Museum in Kirkwall, Orkney houses a collection of domestic and military wireless equipment.
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The Paris Peace Conference was the meeting of the Allied victors, following the end of World War I to set the peace terms for the defeated Central Powers following the armistices of 1918.
Penang is a state in Malaysia located on the northwest coast of Peninsular Malaysia, by the Strait of Malacca.
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Pre-dreadnought battleships are sea-going battleships built between the mid- to late-1880s and 1905, before the launch of.
Prize rules or cruiser rules govern the taking of prizes: vessels captured on the high seas during war.
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Q-ships, also known as Q-boats, decoy vessels, special service ships, or mystery ships, were heavily armed merchant ships with concealed weaponry, designed to lure submarines into making surface attacks.
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Radar is an object-detection system that uses radio waves to determine the range, angle, or velocity of objects.
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Reinhard Scheer (30 September 1863 – 26 November 1928) was an Admiral in the German Kaiserliche Marine.
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The Royal Navy (RN) is the United Kingdom's principal naval warfare force.
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Forel (Форель, Forelle - Trout) was a midget submarine designed by Raimondo Lorenzo D’Equevilley-Montjustin and by built by Krupp in Kiel, Germany.
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The Russo-Japanese War (8 February 1904 – 5 September 1905) was fought between the Russian Empire and the Empire of Japan over rival imperial ambitions in Manchuria and Korea.
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The Seehund (German: "seal"), also known as Type XXVII, was a successful series of German midget submarines created during World War II.
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A shock wave is a type of propagating disturbance.
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Sieglinde was a sonar decoy used during the Second World War by German U-boats.
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The sinking of the Cunard ocean liner RMS ''Lusitania'' occurred on 7 May 1915 during the First World War, as Germany waged submarine warfare against the United Kingdom of Great Britain and Ireland.
SM U-1, also known in English as the German Type U 1 submarine, was the first U-boat class of the U-boat series of submarines produced for the German Empire's Imperial German Navy.
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SM U-13 was one of the 329 submarines serving in the Imperial German Navy in World War I. U-13 was engaged in the naval warfare and took part in the First Battle of the Atlantic.
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SM U-142 was one of the 329 submarines serving in the Imperial German Navy in World War I. U-142 was not engaged in the naval warfare.
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SM U-16 was one of the 329 submarines serving in the Imperial German Navy in World War I.
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SM U-17 was a German submarine during World War I. U-17 sank the first British merchant vessel in the First World War, and also sank another nine ships and captured one ship, surviving the war without casualty.
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SM U-19 was a German Type U 19 U-boat built for the Imperial German Navy.
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SM U-2 was a German U-boat built for the Imperial German Navy.
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SM U-23 was one of the 329 U-boats serving in the Imperial German Navy in World War I. U-23 was engaged in the naval warfare and took part in the First Battle of the Atlantic.
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SM U-27 was a German Type ''U-27'' U-boat built for service in the Imperial German Navy.
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SM U-3 was the third German U-Boat created by the German Empire in their history, and the first of two submarines in its class.
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SM U-43 was one of 329 submarines serving in the Imperial German Navy in World War I. She engaged in commerce warfare in the First Battle of the Atlantic, performing 11 patrols from 1915-1918.
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SM U-5 was a German Type U 5 U-boat built for the Imperial German Navy.
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SM U-51 was a Type U 51 submarine, one of 329 submarines in the Imperial German Navy in World War I. She engaged in commerce warfare during the First Battle of the Atlantic.
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SM U-57 was one of the 329 submarines serving in the Imperial German Navy in World War I. U-57 was engaged in naval warfare and took part in the First Battle of the Atlantic.
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SM U-63 was one of the 329 submarines serving in the Imperial German Navy in World War I. U-63 was engaged in naval warfare and took part in the First Battle of the Atlantic.
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SM U-9 was a German Type U 9 U-boat.
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Sonar (originally an acronym for SOund Navigation And Ranging) is a technique that uses sound propagation (usually underwater, as in submarine navigation) to navigate, communicate with or detect objects on or under the surface of the water, such as other vessels.
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The Union of Soviet Socialist Republics (a) abbreviated to USSR (r) or shortened to the Soviet Union (p), was a Marxist–Leninist state on the Eurasian continent that existed between 1922 and 1991.
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Steels are alloys of iron and other elements, primarily carbon, widely used in construction and other applications because of their high tensile strengths and low costs.
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William Stephen Richard King-Hall, Baron King-Hall (21 January 1893 – 2 June 1966) was a British naval officer, writer, politician and playwright.
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Strategic bombing is a military strategy used in a total war with the goal of defeating the enemy by destroying their morale or their economic ability to produce and transport materiel to the theatres of military operations, or both.
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A submarine is a watercraft capable of independent operation underwater.
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A submarine snorkel is a device which allows a submarine to operate submerged while still taking in air from above the surface.
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Submarine warfare is one of the four divisions of underwater warfare, the others being anti-submarine warfare, mine warfare and mine countermeasures.
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The Sussex Pledge was a promise made in 1916 during World War I by Germany to the United States prior to the latter's entry into the war.
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The G7es (TXI) "Zaunkönig II" was a torpedo developed for German U-boats during World War II.
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Thorsten Nordenfelt (1842-1920), was a Swedish inventor and industrialist.
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Lieutenant Francis Anthony Blair Fasson, (17 July 1913 – 30 October 1942), known as Tony Fasson, was a British Royal Navy officer.
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The modern torpedo is a self-propelled weapon with an explosive warhead, launched above or below the water surface, propelled underwater towards a target, and designed to detonate either on contact with its target or in proximity to it.
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The Treaty of Versailles (Traité de Versailles) was one of the peace treaties at the end of World War I. It ended the state of war between Germany and the Allied Powers.
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Turkey (Türkiye), officially the Republic of Turkey (Turkish), is a parliamentary republic in Eurasia, largely located in Western Asia, with the smaller portion of Eastern Thrace in Southeast Europe.
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The Type 201 was Germany's first class of military submarines built after World War II.
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The Type 205 was a class of German diesel-electric submarines.
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The Type 206 is a class of diesel-electric submarines (U-boats) developed by Howaldtswerke-Deutsche Werft (HDW).
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The Type 209 is a class of diesel-electric attack submarine developed exclusively for export by Howaldtswerke-Deutsche Werft of Germany.
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The German Type 212 class, also Italian Todaro class, is a highly advanced design of non-nuclear submarine developed by Howaldtswerke-Deutsche Werft AG (HDW) for the German and Italian Navies.
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The Type 214 is a diesel-electric submarine developed by Howaldtswerke-Deutsche Werft GmbH (HDW).
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Type XXI U-boats, also known as "Elektroboote" (German: "electric boats"), were the first submarines designed to operate primarily submerged, rather than as surface ships that could submerge as a means to escape detection or launch an attack.
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German Type XXIII submarines were the first so-called elektroboats to become operational.
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The U-boat Campaign from 1914 to 1918 was the World War I naval campaign fought by German U-boats against the trade routes of the Allies.
During World War II Nazi Germany's Kriegsmarine considered various submarine designs for specialized operations or improving U-boat performance.
The United States Armed Forces are the federal military forces of the United States.
The United States Navy (USN) is the naval warfare service branch of the United States Armed Forces and one of the seven uniformed services of the United States.
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Unrestricted submarine warfare is a type of naval warfare in which submarines sink vessels such as freighters and tankers without warning, as opposed to attacks per prize rules (also known as "cruiser rules").
Wilhelm Bauer (23 December 1822 - 20 June 1875) was a Bavarian inventor and engineer who built several hand-powered submarines.
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Wilhelm II or William II (Friedrich Wilhelm Viktor Albrecht von Preußen; Frederick William Victor Albert of Prussia; 27 January 18594 June 1941) was the last German Emperor (Kaiser) and King of Prussia, ruling the German Empire and the Kingdom of Prussia from 15 June 1888 to 9 November 1918.
Sir Winston Leonard Spencer-Churchill, (30 November 1874 – 24 January 1965) was a British statesman who was the Prime Minister of the United Kingdom from 1940 to 1945 and again from 1951 to 1955.
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Wolfgang Petersen (born 14 March 1941) is a German film director and screenwriter.
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The term wolfpack refers to the mass-attack tactics against convoys used by German U-boats of the Kriegsmarine during the Battle of the Atlantic, and by submarines of the United States Navy against Japanese shipping in the Pacific Ocean in World War II.
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World War I (WWI or WW1), also known as the First World War or the Great War, was a global war centered in Europe that began on 28 July 1914 and lasted until 11 November 1918.
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World War II (WWII or WW2), also known as the Second World War, was a global war that lasted from 1939 to 1945, though related conflicts began earlier.
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The 7th Cruiser Squadron was a blockading force of the Royal Navy during the First World War used to close the English Channel to German traffic.