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German submarine U-221

German submarine U-221 was a Type VIIC U-boat of Nazi Germany's Kriegsmarine during World War II. [1]

49 relations: AEG, Beam (nautical), Bernard & Graefe, Cape Farewell, Greenland, Captain lieutenant, Convoys HX 229/SC 122, Depth charge, Diesel engine, Draft (hull), Faroe Islands, Friedrich Krupp Germaniawerft, German submarine U-254, GIUK gap, Greenland, Gross register tonnage, Handley Page Halifax, Hans-Hartwig Trojer, Iceland, Kapitänleutnant, Kiel, Kriegsmarine, Kristiansand, Landing Craft Mechanized, Landing craft tank, Length overall, List of Allied convoys during World War II by region, Motor–generator, Nazi Germany, Newfoundland (island), No. 58 Squadron RAF, Oberleutnant zur See, Propeller, Saint-Nazaire, Ship's company, St. John's, Newfoundland and Labrador, Strait of Belle Isle, Submarine, Submarine depth ratings, Submarine hull, Supercharger, Torpedo, Torpedo tube, U-boat, Wolfpack (naval tactic), Wolfpack Pfeil, World War II, 5th U-boat Flotilla, 7th U-boat Flotilla, 8.8 cm SK C/35 naval gun.

AEG

Allgemeine Elektricitäts-Gesellschaft AG (AEG) (German: "General electricity company") was founded as Deutsche Edison-Gesellschaft für angewandte Elektricität in 1883 in Berlin by Emil Rathenau and was a German producer of electrical equipment.

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Beam (nautical)

The beam of a ship is its width at the widest point as measured at the ship's nominal waterline.

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Bernard & Graefe

Bernard & Graefe is a German book publisher, which since 1991 has been part of the Mönch publishing group.

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Cape Farewell, Greenland

Cape Farewell (Uummannarsuaq; Kap Farvel) is a headland on the southern shore of Eggers Island, Greenland.

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Captain lieutenant

Captain lieutenant or captain-lieutenant is a military rank, used in a number of navies worldwide and formerly in the British Army.

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Convoys HX 229/SC 122

The battle around convoys HX 229 and SC 122 occurred during March 1943 in the Battle of the Atlantic, and was the largest convoy battle of World War II. British merchant shipping was formed into convoys for protection against German submarine attack. Kriegsmarine tactics against convoys employed multiple-submarine wolfpack tactics in nearly simultaneous surface attacks at night. Patrolling aircraft restricted the ability of submarines to converge on convoys during daylight. The North Atlantic winters offered the longest periods of darkness to conceal surfaced submarine operations. The winter of 1942–43 saw the largest number of submarines deployed to the mid-Atlantic before comprehensive anti-submarine aircraft patrols could be extended into that area. During March, there was a series of fierce convoy battles which became, for the Allies, the crisis point of the whole campaign. One hundred merchant ships in trade convoys HX 229 and SC 122 encountered three wolfpacks of 38 submarines in a single sprawling action, which German radio reported as "the greatest convoy battle of all time" (Die grösste Geleitzugschlacht aller Zeiten).Middlebrook p.276 A Royal Navy report later concluded "The Germans never came so near to disrupting communications between the New World and the Old as in the first 20 days of March 1943".Roskill p367.

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Depth charge

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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Diesel engine

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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Draft (hull)

The draft (American) or draught (British) of a ship's hull is the vertical distance between the waterline and the bottom of the hull (keel), with the thickness of the hull included; in the case of not being included the draft outline would be obtained.

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Faroe Islands

The Faroe Islands (Føroyar; Færøerne) are an archipelago between the Norwegian Sea and the North Atlantic Ocean, approximately halfway between Norway and Iceland, north-northwest of Great Britain.

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Friedrich Krupp Germaniawerft

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.

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German submarine U-254

German submarine U-254 was a Type VIIC U-boat of Nazi Germany's Kriegsmarine, built for service in the Second World War and the Battle of the Atlantic.

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GIUK gap

The GIUK gap is an area in the northern Atlantic Ocean that forms a naval choke point.

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Greenland

Greenland (Kalaallit Nunaat; Grønland) is an autonomous country within the Kingdom of Denmark, located between the Arctic and Atlantic Oceans, east of the Canadian Arctic Archipelago.

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Gross register tonnage

Gross register tonnage (GRT, grt, g.r.t.) a ship's total internal volume expressed in "register tons", each of which is equal to.

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Handley Page Halifax

The Handley Page Halifax was a four-engined heavy bomber model operated by the British Royal Air Force during World War II.

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Hans-Hartwig Trojer

Hans-Hartwig Trojer (22 January 1916 – 27 September 1943) was a German U-Boat commander in World War II.

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Iceland

Iceland is a Nordic island country between the North Atlantic and the Arctic Ocean.

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Kapitänleutnant

Kapitänleutnant, short: KptLt / in lists: KL, (Lang-en: Captain lieutenant) is an officer grade of the captains military hierarchy group of German Bundeswehr.

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Kiel

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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Kriegsmarine

The Kriegsmarine (War Navy) was the navy of Nazi Germany from 1935 to 1945.

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Kristiansand

Kristiansand is a city, municipality and the county capital of Vest-Agder county in Southern Norway.

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Landing Craft Mechanized

The Landing Craft Mechanized (LCM) or Landing Craft Mechanical is a landing craft designed for carrying vehicles.

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Landing craft tank

The Landing Craft, Tank (or Tank Landing Craft) was an amphibious assault craft for landing tanks on beachheads.

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Length overall

Length overall, often abbreviated as (LOA, o/a, o.a. or oa) is the maximum length of a vessel's hull measured parallel to the waterline.

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List of Allied convoys during World War II by region

This is a List of Allied convoys during World War II by region.

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Motor–generator

A motor–generator (an M–G set or a dynamotor for dynamo–motor) is a device for converting electrical power to another form.

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Nazi Germany

Nazi Germany or the Third Reich (Drittes Reich) are common English names for the period of history in Germany from 1933 to 1945, when it was a dictatorship under the control of Adolf Hitler and the Nazi Party (NSDAP).

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Newfoundland (island)

Newfoundland (Terre-Neuve, Taqamkuk) is a large Canadian island off the east coast of the North American mainland, and the most populous part of the Canadian province of Newfoundland and Labrador.

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No. 58 Squadron RAF

No.

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Oberleutnant zur See

Oberleutnant zur See (OLt zS or OLZS in the German Navy, Oblt.z.S. in the Kriegsmarine) is traditionally the first and highest Lieutenant grade in the German Navy.

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Propeller

A propeller is a type of fan that transmits power by converting rotational motion into thrust.

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Saint-Nazaire

Saint-Nazaire (Gallo) is a commune in the Loire-Atlantique department in western France, in traditional Brittany.

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Ship's company

A ship's company comprises all officers, non-commissioned officers and enlisted personnel aboard a naval vessel.

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St. John's, Newfoundland and Labrador

St.

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Strait of Belle Isle

The Strait of Belle Isle (détroit de Belle Isle (Beautiful Island)), sometimes referred to as Straits of Belle Isle or Labrador Straits) is a waterway in eastern Canada that separates the Labrador Peninsula from the island of Newfoundland, in the province of Newfoundland and Labrador. The strait is approximately 125 kilometres long and ranges from a maximum width of 60 km to just 15 km at it narrowest, the average width being 18 km. Navigation in the strait can be extremely hazardous with strong tidal currents interacting with the Labrador Current, depths reaching several hundred metres in places, sea ice for 8–10 months of the year, and variable weather conditions including gales and fog. The strait is the northern outlet for the Gulf of Saint Lawrence, the other two being the Cabot Strait and Strait of Canso. As such, it is also considered part of the Great Lakes-St. Lawrence Seaway system. While sea ice prevents year-round shipping, the Canadian Coast Guard maintains a vessel traffic service (VTS) to ensure collisions do not occur. The name is derived from Belle Isle (Beautiful Island), located at the extreme eastern end of the strait and roughly equidistant between Table Head, Labrador, and Cape Bauld, Newfoundland. A seasonal ferry service (April through January) operates at the western part of strait between St. Barbe, Newfoundland, and Blanc Sablon, Quebec. New road construction for the Trans-Labrador Highway resulted in the removal of ferry services to outports in the northeastern part of the strait in 2002. The idea of building a fixed link across the strait between Labrador and Newfoundland, known as the Newfoundland-Labrador fixed link, has been raised numerous times in recent decades following an unsuccessful attempt to build a tunnel carrying electrical wires in the mid-1970s. If such a link were built, it would likely be a 17-km-long submerged rail tunnel. The proposal is meant to reduce the province's reliance upon the Marine Atlantic ferry service to Nova Scotia, but the project's high costs and lack of suitable road network between Labrador and Quebec have been cited as major obstacles. The October 2003 provincial election resulted in the newly-elected Progressive Conservative government announcing joint federal-provincial funding for a study of the concept. A 35 km submarine cable across the strait is under construction as part of the Lower Churchill Project.

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Submarine

A submarine is a watercraft capable of independent operation underwater.

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Submarine depth ratings

Depth ratings are primary design parameters and measures of a submarine's ability to operate underwater.

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Submarine hull

A light hull (casing in British usage) of a submarine is the outer non-watertight hull which provides a hydrodynamically efficient shape.

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Supercharger

A supercharger is an air compressor that increases the pressure or density of air supplied to an internal combustion engine.

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Torpedo

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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Torpedo tube

A torpedo tube is a cylinder shaped device for launching torpedoes.

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U-boat

U-boat is the anglicised version of the German word U-Boot, a shortening of Unterseeboot, literally "undersea boat".

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Wolfpack (naval tactic)

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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Wolfpack Pfeil

Pfeil ("Arrow") was the name given to two separate U-Boat "wolfpacks" of Nazi Germany during World War II.

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World War II

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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5th U-boat Flotilla

The 5th U-boat Flotilla (German 5. Unterseebootsflottille), also known as Emsmann Flotilla, was a U-boat flotilla of Nazi Germany's Kriegsmarine during World War II.

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7th U-boat Flotilla

The 7th U-boat Flotilla (German 7. Unterseebootsflottille), also known as Wegener Flotilla, was the seventh operational U-boat combat unit in Nazi Germany's Kriegsmarine.

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8.8 cm SK C/35 naval gun

The 8.8 cm SK C/35SK - Schnelladekanone (quick loading cannon); C - Construktionsjahr (year of design) was a German naval gun used in World War II.

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Redirects here:

German submarine U 221, German submarine U221, U 221, U-221, U221, Unterseeboot 221.

References

[1] https://en.wikipedia.org/wiki/German_submarine_U-221

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