U-54 may refer to one of the following German submarines:
Germany, officially the Federal Republic of Germany, is a country in Central and Western Europe, lying between the Baltic and North Seas to the north, and the Alps to the south. It borders Denmark to the north, Poland and the Czech Republic to the east, Austria and Switzerland to the south, France to the southwest, and Luxembourg, Belgium and the Netherlands to the west.
- SM U-54, a Type U 51 submarine launched in 1916 and that served in the First World War until surrendered 24 November 1918; broken up at Taranto in May 1919
- During the First World War, Germany also had these submarines with similar names:
- SM UB-54, a Type UB III submarine launched in 1917 and disappeared after 1 March 1918
- SM UC-54, a Type UC II submarine launched in 1916 and scuttled on 28 October 1918
Type UC II minelaying submarines were used by the Imperial German Navy during World War I. They displaced 417 tons, carried guns, 7 torpedoes and up to 18 mines. The ships were double-hulled with improved range and seakeeping compared to the UC I type.
SM UB-54 was a German Type UB III submarine or U-boat in the German Imperial Navy during World War I. She was commissioned into the Flanders Flotilla of the German Imperial Navy on 12 June 1917 as SM UB-54.
The Type UB III submarine was a class of U-boat built during World War I by the German Imperial Navy.
SM UC-54 was a German Type UC II minelaying submarine or U-boat in the German Imperial Navy during World War I. The U-boat was ordered on 12 January 1916 and was launched on 20 March 1917. She was commissioned into the German Imperial Navy on 10 May 1917 as SM UC-54. In eight patrols UC-54 was credited with sinking 18 ships, either by torpedo or by mines laid. UC-54 was scuttled at Trieste on 28 October 1918 on the surrender of Austria-Hungary.
- During the First World War, Germany also had these submarines with similar names:
- German submarine U-54 (1939), a Type VIIB submarine that served in the Second World War until she went missing after 20 February 1940
SM U-54 was one of the 329 submarines serving in the Imperial German Navy in World War I. U-54 was engaged in the naval warfare and took part in the First Battle of the Atlantic.
World War I, also known as the First World War or the Great War, was a global war originating in Europe that lasted from 28 July 1914 to 11 November 1918. Contemporaneously described as "the war to end all wars", it led to the mobilisation of more than 70 million military personnel, including 60 million Europeans, making it one of the largest wars in history. It is also one of the deadliest conflicts in history, with an estimated nine million combatants and seven million civilian deaths as a direct result of the war, while resulting genocides and the 1918 influenza pandemic caused another 50 to 100 million deaths worldwide.
Taranto is a coastal city in Apulia, Southern Italy. It is the capital of the Province of Taranto and is an important commercial port as well as the main Italian naval base.
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