U-39 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-39, was a Type U 31 submarine launched in 1914 and that served in the First World War until interned in Spain on 18 May 1918; surrendered to France on 22 March 1919
- During the First World War, Germany also had these submarines with similar names:
- SM UB-39, a Type UB II submarine launched in 1916 and sunk on 7 May 1917
- SM UC-39, a Type UC II submarine launched in 1916 and sunk 8 February 1917
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-39 was a German Type UB II submarine or U-boat in the German Imperial Navy during World War I.
The UB II type submarine was a class of U-boat built during World War I by the German Imperial Navy. They were enlarged from the preceding type UB I and were more effective vessels. The boats were a single hull design with a 50-metre maximum diving depth and a 30-45 second diving time. In 1915 and 1916, 30 were built at two different shipyards.
SM UC-39 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 20 November 1915 and was launched on 25 June 1916. She was commissioned into the German Imperial Navy on 31 October 1916 as SM UC-39. In one patrols UC-39 was credited with sinking 3 ships, either by torpedo or by mines laid. UC-39 was forced to the surface by a depth charge attack and then sunk by gunfire from the British destroyer Thrasher off Flamborough Head on 8 February 1917. Seven crew members died while 17 survived.
- During the First World War, Germany also had these submarines with similar names:
- German submarine U-39 (1938), was a Type IX submarine and the first U-Boat to be sunk during the Second World War on 14 September 1939.
SM U-39 was a German Type U 31 U-boat which operated in the Mediterranean Sea during World War I. It ended up being the second most successful U-boat participating in the war, sinking 157 ships for a total of 404,478 tons.
U 31 was a class of U-boats built during World War I by the Kaiserliche Marine.
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.
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