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Wolf Pack Siegfried
Siegfried was a " wolfpack" of German U-boats that operated during the battle of the Atlantic in World War II. Service history ''Siegfried'' was formed in October 1943 to operate against the North Atlantic convoy routes and comprised 18 boats. It consisted of seven boats from the disbanded group ''Schlieffen'', plus eleven others from bases in France and Germany. All the reinforcements were commanded by new skippers; six from Norway were also new boats, while the five from France were experienced boats with new commanders. The ''Siegfried'' boats had fuel problems, so a re-fueling group was established north of the Azores, of three tankers and a flak boat as escort. ''Siegfried'' was deployed to intercept east-bound convoys in mid-Atlantic, planning to attack while travelling towards the re-fueling group and home bases in France. However the Allies became aware of ''Siegfried''s position, and diverted their east-bound HX and SC convoys out of harm's way, leaving a massively re- ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wolfpack (naval Tactic)
The wolfpack was a convoy attack tactic employed in the Second World War. It was used principally by the U-boats of the during the Battle of the Atlantic, and by the submarines of the United States Navy in the Pacific War. The idea of a co-ordinated submarine attack on convoys had been proposed during the First World War but had no success. In the Atlantic during the Second World War the Germans had considerable successes with their wolfpack attacks but were ultimately defeated by the Allies. In the Pacific the American submarine force was able to devastate Japan’s merchant marine, though this was not solely due to the wolfpack tactic. Wolfpacks fell out of use during the Cold War as the role of the submarine changed and as convoys became rare. World War I During the (German war on trade) Allied ships travelled independently prior to the introduction of the convoy system and were vulnerable to attacks by U-boats operating as 'lone wolves'. By gathering up merchant ships into con ... [...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 kno ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Battle Of The Atlantic
The Battle of the Atlantic, the longest continuous military campaign in World War II, ran from 1939 to the defeat of Nazi Germany in 1945, covering a major part of the naval history of World War II. At its core was the Allied naval blockade of Germany, announced the day after the declaration of war, and Germany's subsequent counter-blockade. The campaign peaked from mid-1940 through to the end of 1943. The Battle of the Atlantic pitted U-boats and other warships of the German '' Kriegsmarine'' (Navy) and aircraft of the ''Luftwaffe'' (Air Force) against the Royal Navy, Royal Canadian Navy, United States Navy, and Allied merchant shipping. Convoys, coming mainly from North America and predominantly going to the United Kingdom and the Soviet Union, were protected for the most part by the British and Canadian navies and air forces. These forces were aided by ships and aircraft of the United States beginning September 13, 1941. Carney, Robert B., Admiral, USN. "Comment and Discu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
World War II
World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposing military alliances: the Allies and the Axis powers. World War II was a total war that directly involved more than 100 million personnel from more than 30 countries. The major participants in the war threw their entire economic, industrial, and scientific capabilities behind the war effort, blurring the distinction between civilian and military resources. Aircraft played a major role in the conflict, enabling the strategic bombing of population centres and deploying the only two nuclear weapons ever used in war. World War II was by far the deadliest conflict in human history; it resulted in 70 to 85 million fatalities, mostly among civilians. Tens of millions died due to genocides (including the Holocaust), starvation, ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wolfpack Schlieffen
''Schlieffen'' was a wolfpack of German U-boats that operated during the battle of the Atlantic in World War II. Service history ''Schlieffen'' was formed in October 1943 to operate against the North Atlantic convoy routes and comprised 14 boats. It consisted of 6 boats from the disbanded group ''Rossbach'', plus 7 others from bases in France and Germany, while another, , joined from patrol in the Mid Atlantic. Whilst moving into position a number of boats came under attack, principally from aircraft from USS ''Card'', which was operating against their re-fuelling operation. The tanker was attacked on 12 October, but suffered little damage; however, , which was also attacked later that day, was forced to return to base. On 13 October two more boats ( and ) were attacked, and both were destroyed. Another two boats, and ''U-455'' collided; both were damaged, and ''U-455'' was forced to retire to base for repairs, while ''U-631'', with her torpedo tubes out of action, was pu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
France
France (), officially the French Republic ( ), is a country primarily located in Western Europe. It also comprises of Overseas France, overseas regions and territories in the Americas and the Atlantic Ocean, Atlantic, Pacific Ocean, Pacific and Indian Oceans. Its Metropolitan France, metropolitan area extends from the Rhine to the Atlantic Ocean and from the Mediterranean Sea to the English Channel and the North Sea; overseas territories include French Guiana in South America, Saint Pierre and Miquelon in the North Atlantic, the French West Indies, and many islands in Oceania and the Indian Ocean. Due to its several coastal territories, France has the largest exclusive economic zone in the world. France borders Belgium, Luxembourg, Germany, Switzerland, Monaco, Italy, Andorra, and Spain in continental Europe, as well as the Kingdom of the Netherlands, Netherlands, Suriname, and Brazil in the Americas via its overseas territories in French Guiana and Saint Martin (island), ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Germany
Germany,, officially the Federal Republic of Germany, is a country in Central Europe. It is the second most populous country in Europe after Russia, and the most populous member state of the European Union. Germany is situated between the Baltic and North seas to the north, and the Alps to the south; it covers an area of , with a population of almost 84 million within its 16 constituent states. Germany borders Denmark to the north, Poland and the Czech Republic to the east, Austria and Switzerland to the south, and France, Luxembourg, Belgium, and the Netherlands to the west. The nation's capital and most populous city is Berlin and its financial centre is Frankfurt; the largest urban area is the Ruhr. Various Germanic tribes have inhabited the northern parts of modern Germany since classical antiquity. A region named Germania was documented before AD 100. In 962, the Kingdom of Germany formed the bulk of the Holy Roman Empire. During the 16th ce ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Convoy ON 207
ON 207 was a North Atlantic convoy of the ONS/ON series which ran during the Battle of the Atlantic in World War II. It was the subject of a major U-boat attack in October 1943, the fourth battle in the German autumn offensive. Background Still believing their new weapons and tactics gave them an advantage, despite the losses suffered by wolfpack ''Schlieffen'' and unaware of the poor results achieved during its attack on convoys ONS 20 and ON 206, Befehlshaber der Unterseeboote (BdU) re-organized the boats then in the North Atlantic into patrol line ''Siegfried'' to continue the offensive. The next convoy subjected to an attack was ON 207. Protagonists ON 207 departed Liverpool on 18 October 1943, bound for New York. Composed of 52 ships it was escorted by Canadian escort group C-1, which comprised 3 destroyers; (Cdr JA Burnett as Senior Officer Escort), HMCS ''St Laurent'' and , frigate and 3 corvettes; , and . The escort was augmented by the escort carrier , with 3 s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
German Type XIV Submarine
The Type XIV U-boat was a modification of the Type IXD, designed to resupply other U-boats, being the only submarine tenders built which were not surface ships. It was nicknamed the "''Milchkuh/Milchkühe (pl.)''" (milk cows) or ''U-Tanker''. Design German Type XIV submarines were shortened and deepened versions of the Type IXDs. 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 speed of . When submerged, the boats co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
German Type XB Submarine
Type X (XB) U-boats were a special type of German submarine (U-boat). Although intended as long-range mine-layers, they were later used as long-range cargo transports, a task they shared with the Type IXD and Italian ''Romolo''-class submarines. History The Type X was originally designed specifically to accommodate the newly developed ''Schachtmine A'' (SMA) moored mine. The initial design provided dry storage for the mines, which needed their detonators to be individually adjusted before launch; this submarine was projected to have displaced up to 2,500 tonnes. A further variant, the Type XA was projected, which would have supplemented the main mine chamber with extra mine shafts in the saddle tanks. Neither type entered production. A total of eight Type XB boats were produced, which replaced the mine chamber of the projected Type XA with six vertical wet storage shafts in the forward section of the hull. Up to 18 mines could be carried in these shafts, with an additional 48 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
German Type VII Submarine
Type VII U-boats were the most common type of German World War II U-boat. 703 boats were built by the end of the war. The lone surviving example, , is on display at the Laboe Naval Memorial located in Laboe, Schleswig-Holstein, Germany. Conception and production The Type VII was based on earlier German submarine designs going back to the World War I Type UB III and especially the cancelled Type UG. The type UG was designed through the Dutch dummy company ''NV Ingenieurskantoor voor Scheepsbouw Den Haag'' (I.v.S) to circumvent the limitations of the Treaty of Versailles, and was built by foreign shipyards. The Finnish ''Vetehinen'' class and Spanish Type E-1 also provided some of the basis for the Type VII design. These designs led to the Type VII along with Type I, the latter being built in AG Weser shipyard in Bremen, Germany. The production of Type I was stopped after only two boats; the reasons for this are not certain. The design of the Type I was further used in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Siegfried
Siegfried is a German-language male given name, composed from the Germanic elements ''sig'' "victory" and ''frithu'' "protection, peace". The German name has the Old Norse cognate ''Sigfriðr, Sigfrøðr'', which gives rise to Swedish ''Sigfrid'' (hypocorisms ''Sigge, Siffer''), Danish/Norwegian ''Sigfred''. In Norway, ''Sigfrid'' is given as a feminine name. official statistics at Statistisk Sentralbyrå, National statistics office of Norway, http://www.ssb.no; Statistiska Centralbyrån, National statistics office of Sweden, http://www.scb.se/ The name is medieval and was borne by the legendary dragon-slayer also known as . It did survive in marginal use into the modern period, but after 1876 it enjoyed renewed popularity d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
