SM U-137 was a Type U 127 U-boat of the Imperial German Navy during World War I. Her construction was ordered on 27 May 1916 and her keel was laid down by Kaiserliche Werft Danzig. She was launched on 16 December 1916 and she was commissioned on 8 January 1918. She made no war patrols.
SM U-132 was a German Type U 127 submarine or U-boat in the German Imperial Navy during World War I. The U-boat was ordered on 27 May 1916 and laid down sometime after that. At the end of World War I, the submarine was only 80 to 90% complete; had she been completed and commissioned into the German Imperial Navy she would have been known as SM U-132. U-132 was broken up in place between 1919 and 1920.
SM UB-68 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. It was commissioned into the German Imperial Navy on 5 October 1917 as SM UB-68. The submarine conducted five patrols and sank five ships during the war. Under the command of Karl Dönitz, on 4 October 1918 UB-68 encountered technical problems and had to surface where she was sunk by gunfire at 33°56′N16°20′E. There was one dead and thirty-three survivors. Other sources name the British warships involved in the sinking of UB-68 as HMS Snapdragon and HMS Cradosin, and claim four crew members died in the event.
SM U-56 was one of the 329 submarines serving in the Imperial German Navy in World War I. U-56 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-59 was one of the 329 submarines serving in the Imperial German Navy in World War I. U-59 was engaged in the naval warfare and took part in the First Battle of the Atlantic. She struck a German mine and broke into two parts at Horns Reef at about midnight on 14 May 1917. She lost 33 of her crew; there were 4 survivors. The wreck of U-59 was located in 2002.
SM U-10 was one of the 329 submarines serving in the Imperial German Navy in World War I.
SM U-11 was one of the 329 submarines serving in the Imperial German Navy in World War I.
SM U-13 was one of the 329 submarines serving in the Imperial German Navy in World War I. U-13 was engaged in the naval warfare and took part in the First Battle of the Atlantic.
SM U-16 was one of the 329 submarines serving in the Imperial German Navy in World War I.
SM U-43 was one of 329 submarines serving in the Imperial German Navy in World War I. She engaged in commerce warfare in the First Battle of the Atlantic, performing 11 patrols from 1915–1918.
SM U-45 was one of the 329 submarines serving in the Imperial German Navy in World War I. U-45 was engaged in the naval warfare and took part in the First Battle of the Atlantic.
SM U-48 was one of the 329 submarines serving in the Imperial German Navy in World War I. U-48 was engaged in the naval warfare and took part in the First Battle of the Atlantic.
SM U-50 was one of 329 submarines in the Imperial German Navy in World War I. She took part in the First Battle of the Atlantic.
SM U-51 was a Type U 51 submarine, one of 329 submarines in the Imperial German Navy in World War I. She engaged in commerce warfare during the First Battle of the Atlantic.
SM U-136 was one of the 329 submarines serving in the Imperial German Navy in World War I. U-136 was engaged in the naval warfare and took part in the First Battle of the Atlantic.
SM U-141 was a Type U 139 submarine serving in the Imperial German Navy in World War I. U-141 was engaged in the naval warfare and took part in the First Battle of the Atlantic.
SM U-142 was one of the 329 submarines serving in the Imperial German Navy in World War I. U-142 was not engaged in the naval warfare.
SM U-153 was one of the 329 submarines serving in the Imperial German Navy in World War I. U-153 was engaged in the naval warfare and took part in the First Battle of the Atlantic.
SM U-157 was one of the 329 submarines serving in the Imperial German Navy in World War I. U-157 was engaged in the naval warfare and took part in the First Battle of the Atlantic.
German Empire