WDeutschland was a blockade-breaking German merchant submarine used during World War I. It was developed with private funds and operated by the North German Lloyd Line. She was the first of seven U-151-class U-boats built and one of only two used as unarmed cargo submarines.
WSM U-20 or U-XX was the lead boat of the U-20 class of submarines or U-boats built for and operated by the Austro-Hungarian Navy during the First World War. The design for U-20 was based on that of the submarines of the Royal Danish Navy's Havmanden class, and was largely obsolete by the beginning of the war.
WSM U-21 or U-XXI was a U-20-class submarine or U-boat built for and operated by the Austro-Hungarian Navy during the First World War. The design for U-21 was based on submarines of the Royal Danish Navy's Havmanden class, and was largely obsolete by the beginning of the war.
WSM U-22 or U-XXII was a U-20-class submarine or U-boat built for and operated by the Austro-Hungarian Navy during the First World War. The design for U-22 was based on submarines of the Royal Danish Navy's Havmanden class, and was largely obsolete by the beginning of the war.
WSM U-23 or U-XXIII was a U-20-class submarine or U-boat built for and operated by the Austro-Hungarian Navy during the First World War. The design for U-23 was based on that of the submarines of the Royal Danish Navy's Havmanden class, and was largely obsolete by the beginning of the war.
WSM U-27 or U-XXVII was the lead boat of the U-27 class of U-boats or submarines for the Austro-Hungarian Navy. U-27 was built by the Austrian firm of Cantiere Navale Triestino (CNT) at the Pola Navy Yard and launched on 19 October 1916. She was commissioned on 24 February 1917.
WSM U-40 or U-XL was a U-27 class U-boat or submarine for the Austro-Hungarian Navy. U-40, built by the Austrian firm of Cantiere Navale Triestino (CNT) at the Pola Navy Yard, was launched in April 1917 and commissioned in August.
WSM U-105 was one of the 329 submarines serving in the Imperial German Navy in World War I. U-105 was engaged in the naval warfare and took part in the First Battle of the Atlantic. After the war she was ceded to France, where the unit served as Jean Autric until being scrapped in 1938.
WSM U-106 was one of the 329 submarines serving in the Imperial German Navy in World War I. U-106 was commissioned on 28 July 1917, under the command of Kapitänleutnant Hans Hufnagel, and participated in one wartime patrol starting on 2 September 1917. On 18 September 1917, during the First Battle of the Atlantic, U-106 was credited with the sinking of HMS Contest, an Acasta class destroyer, and damaging "City of Lincoln", a 5,867 ton steamer, in the Western Approaches. She was lost off Terschelling after striking a mine on 7 October 1917.
WSM U-108 was a submarine in the Imperial German Navy in World War I, taking part in the First Battle of the Atlantic.
WSM U-110 was a Type U 93 U-boat of the German Imperial Navy during World War I. She was ordered on 5 May 1916 and launched on 28 July 1917. She was commissioned into the German Imperial Navy on 25 September 1917 as SM U-110. and assigned to IV Flotilla of the High Seas Fleet based on the German North Sea coast.
WSM U-111 was one of the 329 submarines serving in the Imperial German Navy in World War I. She took part in the First Battle of the Atlantic. She was the only submarine which had a clergyman on board.
WSM U-151 or SM Unterseeboot 151 was a World War I U-boat of the Imperial German Navy, constructed by Reiherstieg Schiffswerfte & Maschinenfabrik at Hamburg and launched on 4 April 1917. From 1917 until the Armistice in November 1918 she was part of the U-Kreuzer Flotilla, and was responsible for 34 ships sunk and 7 ships damaged.
WSM U-152 was a German Type U 151 submarine of the Imperial German Navy during World War I.
WSM UB-43 was a Type UB II submarine or U-boat for the German Imperial Navy during World War I. UB-43 was sold to the Austro-Hungarian Navy during the war. In Austro-Hungarian service the B was dropped from her name and she was known as SM U-43 or U-XLIII as the lead boat of the Austro-Hungarian U-43 class.
WThe SM UB-48 was a German Type UB III submarine or U-boat in the German Imperial Navy during World War I. It was commissioned into the German Imperial Navy on 11 June 1917 as SM UB-48.
WSM UB-50 was a German Type UB III submarine or U-boat in the German Imperial Navy during World War I. The U-boat was ordered on 20 May 1916. She was commissioned into the Pola Flotilla of the German Imperial Navy on 12 July 1917 as SM UB-50.
WSM UB-51 was a German Type UB III submarine or U-boat in the German Imperial Navy during World War I. She was commissioned into the Pola Flotilla of the German Imperial Navy on 26 July 1917 as SM UB-51.
WSM UB-52 was a German Type UB III submarine or U-boat in the German Imperial Navy during World War I. She was commissioned into the Pola Flotilla of the German Imperial Navy on 9 August 1917 as SM UB-52.
WSM UB-53 was a German Type UB III submarine or U-boat in the Imperial German Navy during World War I. She was commissioned into the Pola Flotilla of the German Imperial Navy on 21 August 1917 as SM UB-53.
WSM 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.
WSM UB-55 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 1 July 1917 as SM UB-55.
WSM UB-56 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 19 July 1917 as SM UB-56.
WSM UB-57 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 30 July 1917 as SM UB-57.
WSM UB-58 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 10 August 1917 as SM UB-58.
WSM UB-59 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 25 August 1917 as SM UB-59.
WSM UB-60 was a German Type UB III submarine or U-boat in the German Imperial Navy during World War I. She was commissioned into the Training Flotilla of the German Imperial Navy on 6 June 1917 as SM UB-60.
WSM UB-61 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 23 June 1917 as SM UB-61.
WSM UB-62 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 9 July 1917 as SM UB-62.
WSM UB-63 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 23 July 1917 as SM UB-63.
WSM 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.
WSM UB-66 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 1 August 1917 as SM UB-66.
WSM UB-67 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 23 August 1917 as SM UB-67.
WSM UB-69 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 12 October 1917 as SM UB-69.
WSM UB-70 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 29 October 1917 as SM UB-70.
WSM UB-71 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 23 November 1917 as SM UB-71.
WSM UB-72 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 9 September 1917 as SM UB-72.
WSM UB-73 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 2 October 1917 as SM UB-73.
WSM UB-74 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 24 October 1917 as SM UB-74.
WSM UB-75 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 11 September 1917 as SM UB-75.
WSM UB-76 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 23 September 1917 as SM UB-76.
WSM UB-77 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 2 October 1917 as SM UB-77.
WSM UB-78 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 20 October 1917 as SM UB-78. Mined off Dover on 19 April 1918 all 35 crew lost.
WSM UB-79 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 27 October 1917 as SM UB-79.
WSM UB-80 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 8 September 1917 as SM UB-80.
WSM UB-81 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 18 September 1917 as SM UB-81.
WSM UB-82 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 8 September 1917 as SM UB-82.
WSM UB-83 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 15 October 1917 as SM UB-83.
WSM UB-84 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 31 October 1917 as SM UB-84. UB-84 was lost in a collision on 7 December 1917 in the Baltic Sea at 54°35′N 10°11′E.
WSM UB-85 was a Type UB III U-boat in the German Imperial Navy during World War I. Ordered on 23 September 1916, the U-boat was built at the AG Weser shipyard in Bremen and commissioned on 24 November 1917, under the command of Kapitänleutnant Günther Krech.
WSM UB-86 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 31 October 1917 as SM UB-86.
WSM UB-87 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 27 December 1917 as SM UB-87.
WSM UB-103 was a German Type UB III submarine or U-boat in the German Imperial Navy during World War I. She was commissioned on 18 December 1917 as SM UB-103.
WSM UC-57 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, laid down on 14 March 1916, and was launched on 7 September 1916. She was commissioned into the German Imperial Navy on 22 January 1917 as SM UC-57. In seven patrols UC-57 was credited with sinking 5 ships, either by torpedo or by mines laid.
WSM UC-58 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, laid down on 18 March 1916, and was launched on 21 October 1916. She was commissioned into the German Imperial Navy on 12 March 1917 as SM UC-58. In twelve patrols UC-58 was credited with sinking 24 ships, either by torpedo or by mines laid. UC-58 was surrendered on 24 November 1918 and broken up at Cherbourg in 1921.