[Note 1] In ten patrols UC-70 was credited with sinking 33 ships, either by torpedo or by mines laid.

[1] On 28 August 1918, UC-70 was spotted lying submerged on the sea bottom and attacked by a Blackburn Kangaroo patrol aircraft of No.

246 Squadron RAF and then was then sunk by depth charges from the British destroyer HMS Ouse.

She had a dive time of 48 seconds and was capable of operating at a depth of 50 metres (160 ft).

[3] UC-70 was depth charged and sunk off Whitby, Yorkshire on 28 August 1918 with the loss of all 31 crew.