|Shipyard||Blohm & Voss, Hamburg (Werk 309)|
|Ordered||23 Sep 1916|
|Launched||7 Jul 1917|
|Commissioned||5 Dec 1917|
|Successes||15 ships sunk with a total of 25,999 tons. (View ships hit by UB 103)|
|Fate||14 Aug 1918 - Mined off the Flanders coast after sailing from Zeebrugge on August 14, 1918.. 37 dead (all hands lost).|
The location of known UBIII wrecks and minefields off the Belgian coast leaves little doubt about UB 103's fate.
Previously recorded fate
Mined off Griz Nez on Sept. 16, 1918. An extensive search of the area, contrary to what is often reported, did not find a wreck. Given that the Sept. 16 claim required a excessively long patrol, the claim fails without this support.