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HMS Itchen (K227)
HMS ''Itchen'' (K227) was a of the Royal Navy (RN). ''Itchen'' was built to the RN's specifications as a Group I River-class frigate. She served in the North Atlantic during World War II. As a River-class frigate, ''Itchen'' was one of 151 frigates launched between 1941 and 1944 for use as anti-submarine convoy escorts, named after rivers in the United Kingdom. The ships were designed by naval engineer William Reed, of Smith's Dock Company of South Bank-on-Tees, to have the endurance and anti-submarine capabilities of the sloops, while being quick and cheap to build in civil dockyards using the machinery (e.g. reciprocating steam engines instead of turbines) and construction techniques pioneered in the building of the s. Its purpose was to improve on the convoy escort classes in service with the Royal Navy at the time, including the Flower class. After commissioning in December 1942, ''Itchen'' participated in anti-submarine warfare exercises off Tobermory, Mull and Lough Fo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
River Itchen, Hampshire
The River Itchen in Hampshire, England, rises to the south of New Alresford and flows to meet Southampton Water below the Itchen Bridge. The Itchen Navigation was constructed in the late 17th and early 18th centuries to enable barges to reach Winchester from Southampton Docks, but ceased to operate in the mid-19th century and is largely abandoned today. The river is one of the world's premier chalk streams for fly fishing, amenable to dry fly or nymphing. The local chalk aquifer has excellent storage and filtration and the river has long been used for drinking water. Watercress thrives in its upper reaches. Much of the river from its source to Swaythling is classified as a biological Site of Special Scientific Interest (SSSI), and a Special Area of Conservation, of which the Hockley Meadows nature reserve is a part. The Itchen estuary is part of the separate Lee-on-The Solent to Itchen Estuary SSSI. Etymology and other name The name is likely from a Brittonic language an ... [...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] |
Ships Sunk By German Submarines In World War II
A ship is a large watercraft that travels the world's oceans and other sufficiently deep waterways, carrying cargo or passengers, or in support of specialized missions, such as defense, research, and fishing. Ships are generally distinguished from boats, based on size, shape, load capacity, and purpose. Ships have supported exploration, trade, warfare, migration, colonization, and science. After the 15th century, new crops that had come from and to the Americas via the European seafarers significantly contributed to world population growth. Ship transport is responsible for the largest portion of world commerce. The word ''ship'' has meant, depending on the era and the context, either just a large vessel or specifically a ship-rigged sailing ship with three or more masts, each of which is square-rigged. As of 2016, there were more than 49,000 merchant ships, totaling almost 1.8 billion dead weight tons. Of these 28% were oil tankers, 43% were bulk carriers, and 13% were cont ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
World War II Frigates Of The United Kingdom
In its most general sense, the term "world" refers to the totality of entities, to the whole of reality or to everything that is. The nature of the world has been conceptualized differently in different fields. Some conceptions see the world as unique while others talk of a "plurality of worlds". Some treat the world as one simple object while others analyze the world as a complex made up of many parts. In ''scientific cosmology'' the world or universe is commonly defined as " e totality of all space and time; all that is, has been, and will be". '' Theories of modality'', on the other hand, talk of possible worlds as complete and consistent ways how things could have been. ''Phenomenology'', starting from the horizon of co-given objects present in the periphery of every experience, defines the world as the biggest horizon or the "horizon of all horizons". In ''philosophy of mind'', the world is commonly contrasted with the mind as that which is represented by the mind. ''Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
River-class Frigates Of The Royal Navy
River class may refer to: Destroyers * , ships of the Royal Navy built in the early 20th century that served in World War I * , ships of the Royal Canadian Navy that served in World War II * , frigates built for the Royal Australian Navy post World War II * , ships of the Royal Australian Navy that served in World War I Other ships * , ships of World War II built for the Royal Navy, Royal Canadian Navy and other navies * , former ships of the Royal Navy commissioned in the 1980s * , ships of the modern Royal Navy * , ships of the interwar Royal Navy that saw service in World War II * , ships of the South African Navy Railway locomotives * River class locomotive (other) The River class were classes of locomotives on a number of railways: * Highland Railway River Class - 4-6-0 * Nigerian Railways River class - 2-8-2 * SECR K and SR K1 classes - 2-6-4 Under the Whyte notation for the classification of steam lo ... See also * International Scale of River Difficulty ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1942 Ships
Year 194 ( CXCIV) was a common year starting on Tuesday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Septimius and Septimius (or, less frequently, year 947 ''Ab urbe condita''). The denomination 194 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years. Events By place Roman Empire * Emperor Septimius Severus and Decimus Clodius Septimius Albinus Caesar become Roman Consuls. * Battle of Issus: Septimius Severus marches with his army (12 legions) to Cilicia, and defeats Pescennius Niger, Roman governor of Syria. Pescennius retreats to Antioch, and is executed by Severus' troops. * Septimius Severus besieges Byzantium (194–196); the city walls suffer extensive damage. Asia * Battle of Yan Province: Warlords Cao Cao and Lü Bu fight for control over Yan Province; the battle lasts for over 100 days ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
G7es Torpedo
The G7es (T5) ''"Zaunkönig"'' ("wren") was a passive acoustic torpedo employed by German U-boats during World War II. It was called the GNAT (German Navy Acoustic Torpedo) by the British. Description The forerunner of the ''Zaunkönig'' was the G7e/T4 Falke, codename "Falcon," which was introduced in March 1943, but saw limited use for trial and was rapidly phased out of service in favor of the later model that received a number of significant enhancements. It was faster, had more range, possessed a magnetic or contact detonator and could be equipped with a percussion pistol. The T5 torpedo was capable of travelling at 24 knots (44 km/h) and had an effective range of about 5000 metres against convoy escorts vessels proceeding at speeds between 10 (18 km/h) and 18 knots (33 km/h). The homing system consisted of two hydrophone receivers and altered the direction of the rudder via an electropneumatic device. The acoustic homing torpedo was specifically designed as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Convoys ONS 18/ON 202
ONS 18 and ON 202 were North Atlantic convoys of the ONS/ON series which ran during the battle of the Atlantic in World War II. They were the subject of a major U-boat attack in September 1943, the first battle in the ''Kriegsmarine''s autumn offensive, following the withdrawal from the North Atlantic route after Black May. Background Following the defeats of May 1943, and the devastating losses incurred by the U-boat Arm (''U-Bootwaffe'', or UBW) Admiral Dönitz had withdrawn from attacks on the North Atlantic route while awaiting tactical and technical improvements. Chief among these was the T-5 acoustic torpedo, with which (it was planned) the convoy escorts could be attacked and eliminated, leaving the merchant ships defenceless. By September 1943 these were ready, and U-boat Control (''Befehlshaber der Unterseeboote'', BdU) dispatched a patrol group of 21 boats, code-named ''Leuthen'', to renew the attack on the North Atlantic route. Ships involved In September 1943 B ... [...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] |
Lough Foyle
Lough Foyle, sometimes Loch Foyle ( or "loch of the lip"), is the estuary of the River Foyle, on the north coast of Ireland. It lies between County Londonderry in Northern Ireland and County Donegal in the Republic of Ireland. Sovereignty over the waters has been in dispute since the Partition of Ireland. Flora and fauna Flora A survey of Lough Foyle was made between March 1937 and June 1939 by Helen Blackler.Blackler, H. 1951. An algal survey of Lough Foyle, Northern Ireland. ''Proc. R. Ir. Acad.'' 54B(6):97 – 139 In this, a map shows the distribution of certain species of algae in the lough and a full annotated list of the algae recorded along with photographs of the different sites. The list included: Cyanophyceae, Chlorophyceae, Phaeophyceae, Rhodophyceae, lichens and two species of ''Zostera''. The marine algae of Lough Foyle are also included in Morton (2003).Morton, O. 2003. The marine macroalgae of County Donegal, Ireland.. ''Bull. Ir. biogeog. Soc.''27: 3 – 164 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tobermory, Mull
Tobermory (; gd, Tobar Mhoire) is the capital of, and until 1973 the only burgh on, the Isle of Mull in the Scottish Inner Hebrides. It is located on the east coast of Mishnish, the most northerly part of the island, near the northern entrance of the Sound of Mull. The village was founded as a fishing port in 1788; its layout was based on the designs of Dumfriesshire engineer Thomas Telford. It has a current population of about 1,000. Etymology The name ''Tobermory'' is derived from the Gaelic ', meaning "Mary's well". The name refers to a well located nearby which was dedicated in ancient times to the Virgin Mary. Prehistory and archaeology Archaeological Excavations have taken place at Baliscate just outside of the town. The site was first noted by Hylda Marsh and Beverley Langhorn as part of the Scotland's Rural Past. In 2009, it was partially excavated Time Team and a further longer excavation took place in 2012 as part of a community archaeology project through the Mul ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sloop-of-war
In the 18th century and most of the 19th, a sloop-of-war in the Royal Navy was a warship with a single gun deck that carried up to eighteen guns. The rating system covered all vessels with 20 guns and above; thus, the term ''sloop-of-war'' encompassed all the unrated combat vessels, including the very small gun-brigs and cutters. In technical terms, even the more specialised bomb vessels and fireships were classed as sloops-of-war, and in practice these were employed in the sloop role when not carrying out their specialised functions. In World War I and World War II, the Royal Navy reused the term "sloop" for specialised convoy-defence vessels, including the of World War I and the highly successful of World War II, with anti-aircraft and anti-submarine capability. They performed similar duties to the American destroyer escort class ships, and also performed similar duties to the smaller corvettes of the Royal Navy. Rigging A sloop-of-war was quite different from a civilian ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
