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HMS Ivanhoe (D16)
HMS ''Ivanhoe'' was an built for the Royal Navy in the mid-1930s. During the Spanish Civil War of 1936–1939, the ship enforced the arms blockade imposed by Britain and France on both sides as part of the Mediterranean Fleet. Before the start of World War II, the ship was modified so that she could be used to lay mines by removing some of her armament. ''Ivanhoe'' was transferred to Western Approaches Command shortly after the war began and helped to sink one German submarine in October 1939. She was converted to a minelayer while undergoing a refit in November–December and laid minefields in German coastal waters as well as anti-submarine minefields off the British coast until she was reconverted back to her destroyer configuration in February 1940. ''Ivanhoe'' reverted to her minelaying role during the Norwegian Campaign in April 1940 and then laid a number of minefields off the Dutch coast during the Battle of the Netherlands in May. The ship participated in the Du ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ivanhoe
''Ivanhoe: A Romance'' () by Walter Scott is a historical novel published in three volumes, in 1819, as one of the Waverley novels. Set in England in the Middle Ages, this novel marked a shift away from Scott’s prior practice of setting stories in Scotland and in the more recent past. ''Ivanhoe'' became one of Scott’s best-known and most influential novels. Set in 12th-century England, with colourful descriptions of a tournament, outlaws, a witch trial, and divisions between Jews and Christians, Normans and Saxons, ''Ivanhoe'' was credited by many, including Thomas Carlyle and John Ruskin, with inspiring increased interest in chivalric romance and medievalism. As John Henry Newman put it, Scott "had first turned men's minds in the direction of the Middle Ages". ''Ivanhoe'' was also credited with influencing contemporary popular perceptions of historical figures such as Richard the Lionheart, King John, and Robin Hood. Composition and sources In June 1819, Walter ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dunkirk Evacuation
The Dunkirk evacuation, codenamed Operation Dynamo and also known as the Miracle of Dunkirk, or just Dunkirk, was the evacuation of more than 338,000 Allies of World War II, Allied soldiers during the World War II, Second World War from the beaches and harbour of Dunkirk, in the north of French Third Republic, France, between 26 May and 4 June 1940. The operation commenced after large numbers of Belgian Armed Forces, Belgian, British Army, British, and French Army, French troops were cut off and surrounded by German Army (1935–1945), German troops during the six-week Battle of France. In a speech to the House of Commons of the United Kingdom, House of Commons, British Prime Minister Winston Churchill called this "a colossal military disaster", saying "the whole root and core and brain of the British Army" had been stranded at Dunkirk and seemed about to perish or be captured. In his "We shall fight on the beaches" speech on 4 June, he hailed their rescue as a "miracle of delive ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Length Overall
__NOTOC__ Length overall (LOA, o/a, o.a. or oa) is the maximum length of a vessel's hull measured parallel to the waterline. This length is important while docking the ship. It is the most commonly used way of expressing the size of a ship, and is also used for calculating the cost of a marina berth (for example, £2.50 per metre LOA). LOA is usually measured on the hull alone. For sailing ships, this may ''exclude'' the bowsprit and other fittings added to the hull. This is how some racing boats and tall ships use the term LOA. However, other sources may include bowsprits in LOA. Confusingly, LOA has different meanings. "Sparred length", "Total length including bowsprit", "Mooring length" and "LOA including bowsprit" are other expressions that might indicate the full length of a sailing ship. LOD Often used to distinguish between the length of a vessel including projections (e.g. bow sprits, etc.) from the length of the hull itself, the Length on Deck or LOD is often repo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Displacement (ship)
The displacement or displacement tonnage of a ship is its weight. As the term indicates, it is measured indirectly, using Archimedes' principle, by first calculating the volume of water displaced by the ship, then converting that value into weight. Traditionally, various measurement rules have been in use, giving various measures in long tons. Today, tonnes are more commonly used. Ship displacement varies by a vessel's degree of load, from its empty weight as designed (known as "lightweight tonnage") to its maximum load. Numerous specific terms are used to describe varying levels of load and trim, detailed below. Ship displacement should not be confused with measurements of volume or capacity typically used for commercial vessels and measured by tonnage: net tonnage and gross tonnage. Calculation The process of determining a vessel's displacement begins with measuring its draft.George, 2005. p.5. This is accomplished by means of its "draft marks" (or "load lines"). A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
G And H-class Destroyer
The G- and H-class destroyers were a group of 18 destroyers built for the Royal Navy during the 1930s. Six additional ships being built for the Brazilian Navy when World War II began in 1939 were purchased by the British and named the ''Havant'' class. The design was a major export success with other ships built for the Argentine and Royal Hellenic Navies. They were assigned to the Mediterranean Fleet upon completion and enforced the Non-Intervention Agreement during the Spanish Civil War of 1936–1939. Most ships were recalled home or were sent to the North Atlantic from October–November 1939, after it became clear that Fascist Italy was not going to intervene in World War II. Then they began to escort convoys and patrol for German submarines and commerce raiders. Two ships were lost to German mines in the first six months of the war. Three more were lost during the Norwegian Campaign, one in combat with a German cruiser and two during the First Battle of Narvik in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Texel Disaster
The Texel Disaster took place off the Dutch coast on the night of 31 August 1940 and involved the sinking of two Royal Navy destroyers, and damage to a third and a light cruiser. The disaster was caused by a destroyer flotilla running into an unmarked minefield, which caused serious damage to one vessel; two more destroyers were sunk going to the aid of the first, and a light cruiser sent as an escort was slightly damaged by a mine on the return journey. In all, the disaster caused approximately 300 deaths, with a further 100 men injured or taken prisoner of war. The disaster On the night of 31 August 1940, the British 20th Destroyer Flotilla – consisting of , , , and – sailed from Immingham to the Dutch coast northwest of Texel to lay mines. The flotilla was joined by part of the 5th Destroyer Flotilla consisting of , and . While the ships were laying mines, air reconnaissance detected a German naval force moving west from Terschelling towards Britain; fearing an invasio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Battle Of The Netherlands
The German invasion of the Netherlands ( nl, Duitse aanval op Nederland), otherwise known as the Battle of the Netherlands ( nl, Slag om Nederland), was a military campaign part of Case Yellow (german: Fall Gelb), the Nazi German invasion of the Low Countries (Belgium, Luxembourg, and the Netherlands) and France during World War II. The battle lasted from 10 May 1940 until the surrender of the main Dutch forces on 14 May. Dutch troops in the province of Zeeland continued to resist the ''Wehrmacht'' until 17 May when Germany completed its occupation of the whole country. The invasion of the Netherlands saw some of the earliest mass paratroop drops, to occupy tactical points and assist the advance of ground troops. The German ''Luftwaffe'' used paratroopers in the capture of several airfields in the vicinity of Rotterdam and The Hague, helping to quickly overrun the country and immobilise Dutch forces. After the devastating Nazi bombing of Rotterdam by the ''Luftwaffe'' on 14 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anti-submarine Warfare
Anti-submarine warfare (ASW, or in older form A/S) is a branch of underwater warfare that uses surface warships, aircraft, submarines, or other platforms, to find, track, and deter, damage, or destroy enemy submarines. Such operations are typically carried out to protect friendly shipping and coastal facilities from submarine attacks and to overcome blockades. Successful ASW operations typically involved a combination of sensor and weapon technologies, along with effective deployment strategies and sufficiently trained personnel. Typically, sophisticated sonar equipment is used for first detecting, then classifying, locating, and tracking a target submarine. Sensors are therefore a key element of ASW. Common weapons for attacking submarines include torpedoes and naval mines, which can both be launched from an array of air, surface, and underwater platforms. ASW capabilities are often considered of significant strategic importance, particularly following provocative instan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Minefield
A land mine is an explosive device concealed under or on the ground and designed to destroy or disable enemy targets, ranging from combatants to vehicles and tanks, as they pass over or near it. Such a device is typically detonated automatically by way of pressure when a target steps on it or drives over it, although other detonation mechanisms are also sometimes used. A land mine may cause damage by direct blast effect, by fragments that are thrown by the blast, or by both. Landmines are typically laid throughout an area, creating a ''minefield'' which is dangerous to cross. The use of land mines is controversial because of their potential as indiscriminate weapons. They can remain dangerous many years after a conflict has ended, harming civilians and the economy. Seventy-eight countries are contaminated with land mines and 15,000–20,000 people are killed every year while many more are injured. Approximately 80% of land mine casualties are civilians, with children as the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Minelayer
A minelayer is any warship, submarine or military aircraft deploying explosive mines. Since World War I the term "minelayer" refers specifically to a naval ship used for deploying naval mines. "Mine planting" was the term for installing controlled mines at predetermined positions in connection with coastal fortifications or harbor approaches that would be detonated by shore control when a ship was fixed as being within the mine's effective range. Before World War I, mine ships were termed mine planters generally. For example, in an address to the United States Navy ships of Mine Squadron One at Portland, England, Admiral Sims used the term “mine layer” while the introduction speaks of the men assembled from the “mine planters”. During and after that war the term "mine planter" became particularly associated with defensive coastal fortifications. The term "minelayer" was applied to vessels deploying both defensive- and offensive mine barrages and large scale sea mining ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Western Approaches Command
Commander-in-Chief, Western Approaches was the commander of a major operational command of the Royal Navy during World War II. The admiral commanding, and his forces, sometimes informally known as 'Western Approaches Command,' were responsible for the safety of British shipping in the Western Approaches. History Admiral Martin Dunbar-Nasmith, who had been Commander-in-Chief, Plymouth, also took over responsibility for the Western Approaches from the start of World War II. After the fall of France in June 1940, the main North Atlantic convoy routes were diverted around the north of Ireland through the north-western approaches.History of Derby House (Western Approaches Museum) accessed 1 May 2017 By late 1940, the location of the Combined Operations headquarters at Plymouth was increasingly awkw ... [...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, massa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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