Her building at the shipyard of AG Weser in Bremen was ordered on 23 November 1914, her keel was laid down on 28 January a year later, she was launched on 19 May and commissioned on 28 June and was lost in November 1916. With a displacement of 168 tons/185 short tons (surfaced)-182 tons/201 short tons (submerged) were her dimensions 33,99 x 3,15 x 3 metres or 111’6” x 10’4” x 10. She had a speed of 6,49 (surfaced)-5,67 (submerged) knots and with a speed of 5 knots a range of 910 nautical miles or 50 nautical miles while submerged and with a speed of 4 knots. Her crew numbered 14 men. The armament consisted of 6-1m mine tubes, 1-0,8cm machine gun and she could carry with her 12 mines of the UC 120 type.
