SM UC-34

SM UC-34 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 6 May 1916. She was commissioned into the German Imperial Navy on 25 September 1916 as SM UC-34. In nine patrols UC-34 was credited with sinking 21 ships, either by torpedo or by mines laid.
On 30 December 1917 under the command of Oberleutnant zur See Horst Obermüller, UC-34 torpedoed the British troop ship off the Port of Alexandria. Aragons escort, the destroyer, rescued 300 to 400 survivors but then UC-34 torpedoed and sank her as well. Of 2,500 personnel who had been aboard Aragon, 610 were killed.
UC-34 was scuttled at Pola on 28 October 1918 on the surrender of Austria-Hungary.

Design

A Type UC II submarine, UC-34 had a displacement of when at the surface and while submerged. She had a length overall of o/a, a beam of, and a draught of. The submarine was powered by two six-cylinder four-stroke diesel engines each producing, two electric motors producing, and two propeller shafts. She had a dive time of 35 seconds and was capable of operating at a depth of.
The submarine had a maximum surface speed of and a submerged speed of. When submerged, she could operate for at ; when surfaced, she could travel at. UC-34 was fitted with six mine tubes, eighteen UC 200 mines, three torpedo tubes, seven torpedoes, and one Uk L/30 deck gun. Her complement was twenty-six crew members.