|Shipyard||Blohm & Voss, Hamburg (Werk 287)|
|Ordered||12 Jan 1916|
|Launched||12 Aug 1916|
|Commissioned||28 Nov 1916|
|Successes||63 ships sunk with a total of 110,750 tons.|
17 ships damaged with a total of 74,089 tons.
1 ship damaged with a total of 1,250 tons. (View ships hit by UC 71)
|Fate||20 Feb 1919 - Sank in the North Sea in position 54.10N, 07.54E while on passage to surrender..|
On 8 August, 1917 UC 71 engaged in an eight-hour duel with the Q-Ship HMS Dunraven. The unharmed U-boat left the Q-Ship ablaze and in a sinking condition.