SM ''U-137'') and combined with the ''U'' for ''Unterseeboot'' would be translated as ''His Majesty's Submarine''., group=Note was a Type U 127

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 ...

of the

Imperial German Navy The Imperial German Navy or the Imperial Navy () was the navy of the German Empire, which existed between 1871 and 1919. It grew out of the small Prussian Navy (from 1867 the North German Federal Navy), which was mainly for coast defence. Wilhel ...

during

World War I World War I (28 July 1914 11 November 1918), often abbreviated as WWI, was one of the deadliest global conflicts in history. Belligerents included much of Europe, the Russian Empire, the United States, and the Ottoman Empire, with fightin ...

. Her construction was ordered on 27 May 1916 and her keel was

laid down Laying the keel or laying down is the formal recognition of the start of a ship's construction. It is often marked with a ceremony attended by dignitaries from the shipbuilding company and the ultimate owners of the ship. Keel laying is one o ...

Kaiserliche Werft Danzig Kaiserliche Werft Danzig was a German shipbuilding company founded in 1852 as ''Königliche Werft Danzig'' and renamed ''Kaiserliche Werft'' after the proclamation of the German Empire in 1871. Together with Kaiserliche Werft Kiel and Kaiserlich ...

. She was launched on 16 December 1916 and she was commissioned on 8 January 1918. She made no war patrols.

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* Type U 127 submarines U-boats commissioned in 1918 World War I submarines of Germany 1916 ships Ships built in Danzig {{Germany-submarine-stub