SM U-61 was a German Type U 57 U-boat commissioned and deployed to operate off the coast of the British Isles and attack coastal shipping as part of the U-boat Campaign during World War I.
SM U-104 was a German Type U 57 U-boat during the First World War. U-104 was built at AG Weser in Bremen, launched on 3 July 1917 and commissioned on 12 August 1917. She completed four patrols under Kptlt. Kurt Bernis and was responsible for the sinking of nine vessels of a total of 14,721 gross register tons (GRT).
SM UC-11 was a German Type UC I minelayer submarine or U-boat in the German Imperial Navy during World War I. The U-boat was ordered on 23 November 1914, laid down on 26 January 1915, and was launched on 11 April 1915. She was commissioned into the German Imperial Navy on 23 April 1915 as SM UC-11. Mines laid by UC-11 in her 83 patrols were credited with sinking 27 ships. UC-11 was mined and sunk on 26 June 1918. A crew member was Rudolf Finkler from Oberlinxweiler, Kreis St. Wendel, Germany. According to his death record the boat went down in the North Sea near Harwich, abt. 2.5 nautical miles north east of Funk Feuerschiff on position 51°55′N1°41′E.
SM UC-14 was a German Type UC I minelayer submarine or U-boat in the German Imperial Navy during World War I. The U-boat was ordered on 23 November 1914, laid down on 28 January 1915, and was launched on 13 May 1915. She was commissioned into the German Imperial Navy on 5 June 1915 as SM UC-14. Mines laid by UC-14 in her 38 patrols were credited with sinking 16 ships, one of which was the Italian pre-dreadnought battleship Regina Margherita, which at 13,427 tonnes displacement was one of the largest ships sunk by U-boats during the war. UC-14 was mined and sunk on 3 October 1917.
SM UB-30 was a German Type UB II submarine or U-boat in the German Imperial Navy during World War I. The U-boat was ordered on 22 July 1915 and launched on 16 November 1915. She was commissioned into the German Imperial Navy on 18 March 1916 as SM UB-30.
SM UB-35 was a German Type UB II submarine or U-boat in the German Imperial Navy during World War I. The U-boat was ordered on 22 July 1915 and launched on 28 December 1915. She was commissioned into the German Imperial Navy on 22 June 1916 as SM UB-35.
SM U-47 was a Type U-43 submarine of the Imperial German Navy. She engaged in commerce raiding during the First World War.
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.
SM U-58 was one of the 329 submarines serving in the Imperial German Navy in World War I. U-58 was engaged in the naval warfare and took part in the First Battle of the Atlantic.
SM U-60 was a German Type UB III submarine of the Imperial German Navy in the First World War. She took part in the First Battle of the Atlantic.
SM U-62 was one of the 329 submarines serving in the Imperial German Navy in World War I. U-62 was engaged in the naval warfare and took part in the First Battle of the Atlantic.
SM U-63 was one of the 329 submarines serving in the Imperial German Navy in World War I. U-63 was engaged in naval warfare and took part in the First Battle of the Atlantic.
SM U-80 was one of the 329 submarines serving in the Imperial German Navy in World War I. U-80 was engaged in the naval warfare and took part in the First Battle of the Atlantic.
SM U-97 was one of the 329 submarines serving in the Imperial German Navy in World War I. U-97 was engaged in the naval warfare and took part in the First Battle of the Atlantic. The German unit sank by accident on her way to surrender at position 53°25′N3°10′E.
SM U-98 was a Type U 93 submarine and one of the 329 submarines serving in the Imperial German Navy in World War I. U-98 was engaged in the naval warfare and took part in the First Battle of the Atlantic.
SM U-101 was one of the 329 submarines serving in the Imperial German Navy in World War I. U-101 was engaged in the German campaign against Allied commerce (Handelskrieg) during that conflict. On 26 November 1917, U-101 torpedoed and damaged RFA Crenella, which managed to return to port with assistance from USS Cushing.
SM U-22 was one of 329 submarines serving in the Imperial German Navy in World War I. U-22 was engaged in commerce war as part of the naval warfare, during the First Battle of the Atlantic.
SM U-23 was one of the 329 U-boats serving in the Imperial German Navy in World War I.
SM U-52 was one of 329 submarines serving in the Imperial German Navy in World War I. U-52 was engaged in the naval warfare and took part in the First Battle of the Atlantic.
SM UB-64 was a German Type UB III submarine or U-boat in the German Imperial Navy during World War I. She was commissioned into the German Imperial Navy on 5 August 1917 as SM UB-64.
German Empire 
