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SM U-21 (Austria-Hungary)

SM U-21 or U-XXI was a or U-boat built for and operated by the Austro-Hungarian Navy (Kaiserliche und Königliche Kriegsmarine or K.u.K. Kriegsmarine) during the First World War. [1]

35 relations: Albania, Annapolis, Maryland, Austria-Hungary, Austro-Hungarian Navy, Beam (nautical), Brijuni, Brixen, Ceremonial ship launching, Conning tower, Deck gun, Diesel engine, Draft (hull), Electric motor, Galicia (Eastern Europe), Gyrocompass, Havmanden-class submarine (1911), Ionian Sea, Kotor, Linienschiffsleutnant, Machine gun, Mediterranean Sea, Novigrad, Zadar County, Piston, Pula, Rab, Rijeka, Robert Whitehead, Royal Danish Navy, Ship commissioning, Sister ship, Trapdoor, U-boat, United States Naval Institute, War reparations, World War I.

Albania

Albania (or sometimes,; Shqipëri/Shqipëria; Shqipni/Shqipnia, Shqypni/Shqypnia), officially known as the Republic of Albania (Republika e Shqipërisë), is a country in Southeastern Europe.

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Annapolis, Maryland

Annapolis is the capital of the U.S. state of Maryland, as well as the county seat of Anne Arundel County.

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Austria-Hungary

Austria-Hungary (Österreich-Ungarn; Osztrák-Magyar Monarchia), also known by other names and often referred to as the Austro-Hungarian Empire in English-language sources, was a constitutional union of the Empire of Austria and the Kingdom of Hungary that existed from 1867 to 1918, when it collapsed as a result of defeat in World War I. The union was a result of the Compromise of 1867 and came into existence on 30 March 1867, when the compromise was ratified by the Hungarian parliament.

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Austro-Hungarian Navy

The Austro-Hungarian Navy was the naval force of Austria-Hungary.

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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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Brijuni

The Brijuni or the Brijuni Islands (also known as the Brionian Islands; Brioni) are a group of fourteen small islands in the Croatian part of the northern Adriatic Sea, separated from the west coast of the Istrian peninsula by the narrow Fažana Strait.

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Brixen

Brixen (Bressanone; Ladin: Porsenù or Persenon) is a town in South Tyrol in northern Italy, located about north of Bolzano.

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Ceremonial ship launching

Ceremonial ship launching is the process of transferring a vessel to the water.

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Conning tower

A conning tower is a raised platform on a ship or submarine, often armored, from which an officer can conn the vessel, i.e., give directions to the helmsman.

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Deck gun

A deck gun is a type of artillery cannon mounted on the deck of a ship or submarine.

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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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Electric motor

An electric motor is an electrical machine that converts electrical energy into mechanical energy.

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Galicia (Eastern Europe)

Galicia (Галичина, Halychyna; Galicja; Halič; Galizien; Galícia/Kaliz/Gácsország/Halics; Galiția/Halici; Галиция/Галичина, Galitsiya/Galichina; Rusyn: Галичина, Halychyna; Halič; גאַליציע, Galytsye) is a historical and geographic region in Eastern Europe, once a small kingdom, that straddles the modern-day border between Poland and Ukraine.

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Gyrocompass

A gyrocompass is a type of non-magnetic compass which is based on a fast-spinning disc and rotation of the Earth (or another planetary body if used elsewhere in the universe) to automatically find geographical direction.

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Havmanden-class submarine (1911)

The Havmanden class was a class of six submarines built for the Royal Danish Navy from 1911 to 1914.

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Ionian Sea

The Ionian Sea (Ιόνιο Πέλαγος,, Mar Ionio,, Deti Jon) is an elongated embayment of the Mediterranean Sea, south of the Adriatic Sea.

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Kotor

Kotor (Котор,; Cattaro) is a coastal town in Montenegro.

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Linienschiffsleutnant

Linienschiffsleutnant (Hun: Fregatthadnagy / en: translation Ship-of-the-line lieutenant) was an officer rank in the Austro-Hungarian Navy.

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Machine gun

A machine gun is a fully automatic mounted or portable firearm, designed to fire bullets in quick succession from an ammunition belt or magazine, typically at a rate of three hundred to eighteen hundred rounds per minute.

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Mediterranean Sea

The Mediterranean Sea is a sea connected to the Atlantic Ocean surrounded by the Mediterranean region and almost completely enclosed by land: on the north by Southern Europe and Anatolia, on the south by North Africa, and on the east by the Levant.

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Novigrad, Zadar County

Novigrad is a village and municipality in Croatia in the Zadar County.

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Piston

A piston is a component of reciprocating engines, reciprocating pumps, gas compressors and pneumatic cylinders, among other similar mechanisms.

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Pula

Pula or Pola (Pola Italian and Istro-Romanian; Colonia Pietas Iulia Pola Pollentia Herculanea; Slovene and Chakavian: Pulj, Polei, Ancient Greek: Πόλαι, Polae) is the largest city in Istria County, Croatia, situated at the southern tip of the Istria peninsula, with a population of 57,460 (2011).

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Rab

Rab (Arba, Arbe, Arbey) is an island in Croatia and a town of the same name located just off the northern Croatian coast in the Adriatic Sea.

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Rijeka

Rijeka (Reka; Italian and Fiume /; Pflaum) is the principal seaport and the third-largest city in Croatia (after Zagreb and Split).

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Robert Whitehead

Robert Whitehead (3 January 1823 – 14 November 1905) was an English engineer, most famous for developing the first effective self-propelled naval torpedo.

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Royal Danish Navy

The Royal Danish Navy (Søværnet in Danish) is the sea-based branch of the Danish Defence force.

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Ship commissioning

Ship commissioning is the act or ceremony of placing a ship in active service, and may be regarded as a particular application of the general concepts and practices of project commissioning.

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Sister ship

A sister ship is a ship of the same class as, or of virtually identical design to, another ship.

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Trapdoor

A trapdoor is a sliding or hinged door, flush with the surface of a floor, roof, or ceiling, or in the stage of a theatre.

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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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United States Naval Institute

The United States Naval Institute (USNI), based in Annapolis, Maryland, is a private, non-profit, professional military association that seeks to offer independent, nonpartisan forums for debate of national defense and security issues.

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War reparations

War reparations are payments intended to cover damage or injury inflicted during a war.

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World War I

World War I (WWI or WW1), also known as the First World War or the Great War, was a global war centered in Europe that began on 28 July 1914 and lasted until 11 November 1918.

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Redirects here:

Austro-Hungarian Unterseeboot 21, Austro-Hungarian Unterseeboot XXI, Austro-Hungarian submarine U-21, Austro-Hungarian submarine U-XXI, SM U XXI (Austria-Hungary), SM U-XXI (Austria-Hungary), SM Unterseeboot 21 (Austria-Hungary), U 21 (Austria-Hungary), U XXI, U-21 (Austria-Hungary), U-XXI, U21 (Austria-Hungary).

References

[1] https://en.wikipedia.org/wiki/SM_U-21_(Austria-Hungary)

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