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German Type XVIII Submarine
During World War II, Nazi Germany's ''Kriegsmarine'' considered various submarine designs for specialized operations or improving U-boat performance. Many of these designs did not come to fruition for various reasons; some were abandoned due to practical considerations, while others towards the end of the war had to be abandoned as the yards where they were being built were overrun by allied forces. List of projects cancelled or not put in production * Type III U-boat - was a 1934 project for a purpose-built minelayer based on the Type IA U-boat. The Type III U-boat would have been similar to the Type IA, but with a hull lengthened by 7.5 m, and a total displacement of 970 tons. The Type III U-boat was planned to carry an armament of 54 to 75 mines (depending on the type carried), two 105-mm deck guns, and one 20-mm antiaircraft gun. * Type IIIA U-boat - originally known as Type VII, was a planned minelayer similar to the Type IA U-boat. It would have had a larger outer hull ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
World War II
World War II or the Second World War (1 September 1939 – 2 September 1945) was a World war, global conflict between two coalitions: the Allies of World War II, Allies and the Axis powers. World War II by country, Nearly all of the world's countries participated, with many nations mobilising all resources in pursuit of total war. Tanks in World War II, Tanks and Air warfare of World War II, aircraft played major roles, enabling the strategic bombing of cities and delivery of the Atomic bombings of Hiroshima and Nagasaki, first and only nuclear weapons ever used in war. World War II is the List of wars by death toll, deadliest conflict in history, causing World War II casualties, the death of 70 to 85 million people, more than half of whom were civilians. Millions died in genocides, including the Holocaust, and by massacres, starvation, and disease. After the Allied victory, Allied-occupied Germany, Germany, Allied-occupied Austria, Austria, Occupation of Japan, Japan, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Type XXVI Submarine
The Type XXVI was a German submarine project towards the end of the Second World War. Only four boats began construction, none of which were completed. Concept After the use of electric propulsion in submarine construction in the course of the development of the Type XXI and XXIII submarines, the designs of Types XVII, XVIII and XXII by Walterwerke were not pursued any further. When it turned out that the XXI boats were too large and expensive for use in the Western Approaches, the Kiel family company saw the opportunity for a "Walter U-boat" again and on October 12, 1943, presented a concept with the designation XXVIA. On March 28 of the following year, the Commander-in-Chief of the Navy, Karl Dönitz, decided to have the boat built under the type designation XXVIW (for Walter). A week later, the naval war command formulated the requirements that the new type of boat had to meet, which was now given the designation XXVI. Then the Ingenieurbüro Glückauf (IBG) was entr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Molch
''Molch'' (German language: "newt" or "salamander") was an unsuccessful series of one-man midget submarines created during World War II. Built in 1944, it was the first mini-submarine of Nazi Germany's ''Kriegsmarine'', but was not successful in combat operations and suffered heavy losses. Description The Molch was based on torpedo technology, and carried two G7e torpedoes attached externally on either side of the craft. It was fully electrical and was created for coastal operations, with a range of at . The front section of the boat held a large battery. Behind the battery was the operator's position, which sat between two small trimming tanks. Behind the operator sat the electric motor. The complicated system of tanks made it difficult to control during combat operations. The first of 393 boats were delivered on June 12, 1944, and were built by AG Weser in Bremen (city), Bremen. Operational history The Molch were first used in the Mediterranean against the Allies of Wo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hai (midget Submarine)
''Hai'' (shark) was an advanced model of the Marder-class midget submarines created in Nazi Germany during World War II World War II or the Second World War (1 September 1939 – 2 September 1945) was a World war, global conflict between two coalitions: the Allies of World War II, Allies and the Axis powers. World War II by country, Nearly all of the wo ... and operated by the K-Verband. Its prototype performed poorly during test runs and therefore no other boats were produced. The ''Hai'' was long and its length allowed for larger batteries, giving it the maximum speed of under water. In addition, the ''Hai'' could remain under water for up to two hours. References Bibliography * * External links * Midget submarines World War II submarines of Germany {{Germany-submarine-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Biber (submarine)
''Biber'' (German for "beaver") was a German midget submarine of the Second World War. Armed with two externally mounted torpedoes or mines, they were intended to attack coastal shipping. They were among the smallest submarines in the Kriegsmarine. The Biber was hastily developed to help meet the threat of D-Day, an Allied invasion of Europe. This resulted in basic technical flaws that, combined with the inadequate training of their operators, meant they never posed a real threat to Allied shipping, despite 324 submarines being delivered. One of the class's few successes was the sinking of the cargo ship ''Alan-A-Dale''. Several survive in museums, including one in operational condition. Development Originally proposed by Kapitänleutnant Bartels in 1942, but not acted on until the need for coastal defence in the event of an invasion became paramount. Construction of the first prototype began in February 1944, at the Flender shipyard in Lübeck, and was completed in less tha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Midget Submarine
A midget submarine is any submarine under 150 tons, typically operated by a crew of one or two but sometimes up to six or nine, with little or no on-board living accommodation. They normally work with mother ships, from which they are launched and recovered and which provide living accommodation for the crew and support staff. Both military and civilian midget submarines have been built. Military types work with surface ships and other submarines as mother ships. Civilian and non-combatant military types are generally called submersibles and normally work with surface ships. Most early submarines would now be considered midget submarines, such as the United States Navy's and the British Royal Navy's (both named for the same John Philip Holland, designer). Military submarines Uses Midget submarines are best known for harbor penetration, although only two World War II boats, the British X-class submarine, X-craft and the unsuccessful Welman submarine, were specifically designe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Type XXIII Submarine
German Type XXIII submarines were the first so-called elektroboote ("electric boats") to become operational. They were small coastal submarines designed to operate in the shallow waters of the North Sea, Black Sea and Mediterranean Sea, where larger Type XXI electric boats were at risk in World War II. They were so small they could carry only two torpedoes, which had to be loaded externally. As with their far larger sisters—the Type XXI—they were able to remain submerged almost all of the time and were faster than conventional U-boats, due to the improved streamlining of their shape, batteries with larger capacity and the snorkel, which allowed the diesel engines to be used while submerged. The Type XXI and XXIII U-boats revolutionized post-war submarine design. Nearly a thousand Type XXIII boats were projected towards the close of World War II, but most of these were either cancelled, scrapped incomplete, or only projected. Background When development began on the Type XX ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Type XXI Submarine
Type XXI submarines were a class of German diesel–electric '' Elektroboot'' (German: "electric boat") submarines designed during the Second World War. One hundred eighteen were completed, with four being combat-ready. During the war only two were put into active service and went on patrols, but these were not used in combat. They were the first submarines designed to operate primarily submerged, rather than spending most of their time as surface ships that could submerge for brief periods as a means of escaping detection. They incorporated many batteries to increase the time they could spend submerged, to as much as several days, and they only needed to surface to periscope depth for recharging via a snorkel. The design included many general improvements as well: much greater underwater speed by an improved hull design, greatly improved diving times, power-assisted torpedo reloading and greatly improved crew accommodations. However, the design was also flawed in many ways, wi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Type XVII Submarine
The Type XVII U-boats were small coastal submarines that used a high-test peroxide propulsion system, which offered a combination of air-independent propulsion and high submerged speeds. Background In the early 1930s Hellmuth Walter had designed a small, high-speed submarine with a streamlined form propelled by high-test peroxide (HTP) and in 1939 he was awarded a contract to build an experimental vessel, the 80 ton , which achieved an underwater speed of during trials in 1940. On 14 November 1941 Admirals Erich Raeder and Werner Fuchs (head of the ''Kriegsmarine''s Construction Office) witnessed a demonstration of the ''V-80'';Rössler (2001), p. 174. Raeder was impressed, but Fuchs was slow to approve further tests. Following the success of the ''V-80's'' trials, Walter contacted Karl Dönitz in January 1942, who enthusiastically embraced the idea and requested that these submarines be developed as quickly as possible. An initial order was placed in summer 1942 for four Type X ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Type XIV Submarine
The Type XIV U-boat was designed to resupply other U-boats,Rössler (2001), p. 151. being the only submarine tenders built which were not surface ships. It was nicknamed in German the "''Milchkuh/Milchkühe (pl.)''" (English: milk cows).Williamson (2005), p. 16. Design The Type XIV was based on the Type IXD long-range U-boat design, but with a shorter and deeper hull. The boats had a displacement of when at the surface and while submerged. The U-boats had a total length of , a pressure hull length of , a beam of , a height of , and a draught of . The submarines were powered by two Germaniawerft supercharged four-stroke, six-cylinder diesel engines producing a total of for use while surfaced, two Siemens-Schuckert 2 GU 345/38-8 double-acting electric motors producing a total of for use while submerged. They had two shafts and two propellers. The boats were capable of operating at depths of up to . The submarines had a maximum surface speed of and a maximum submerged spee ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Type VII Submarine
Type VII U-boats were the most common type of Nazi Germany, German World War II U-boat. 704 boats were built by the end of the war. The type had several modifications. The Type VII was the most numerous U-boat type to be involved in the Battle of the Atlantic. The lone surviving example, , is on display at the Laboe Naval Memorial located in Laboe, Schleswig-Holstein, Germany. At the start of the Second World War the ''Type VII'' class wastogether with the British British U-class submarine, ''U'', British S-class submarine (1931), ''S'' and British T-class submarine, ''T'' class and Dutch O 21-class submarine, ''O 21'' classone of the most advanced submarine classes in service. Design After the defeat in World War I, the Treaty of Versailles forbade Germany to build submarines. Germany circumvented the treaty by setting up the Netherlands, Dutch dummy company ''NV Ingenieurskantoor voor Scheepsbouw Den Haag'' (I.v.S) which continued to design submarines. Based on the World Wa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
