SM UB-57


SM UB-57 was a German Type UB III submarine or U-boat in the German Imperial Navy during World War I. She was commissioned into the Flanders Flotilla of the German Imperial Navy on 30 July 1917 as SM UB-57.
She operated as part of the Flanders Flotilla based in Zeebrugge. UB-57 was thought to have sunk with all hands at 23:00 on 14 August 1918 at after striking a mine, but on April 14th 2025, an already marked wreck at a depth of 17 meters, just west of the Westhinder shoal, close to the border with France was formally identified as the UB-57.

Construction

She was built by AG Weser, Bremen and following just under a year of construction, launched at Bremen on 21 June 1917. UB-57 was commissioned later that same year under the command of Kptlt. Otto Steinbrinck. Like all Type UB III submarines, UB-57 carried 10 torpedoes and was armed with a deck gun. UB-57 would carry a crew of up to 3 officer and 31 men and had a cruising range of. UB-57 had a displacement of while surfaced and when submerged. Her engines enabled her to travel at when surfaced and when submerged.

Summary of raiding history