SM UB-52

SM UB-52 was a German Type UB III submarine or U-boat in the German Imperial Navy (Kaiserliche Marine) during World War I. She was commissioned into the Pola Flotilla of the German Imperial Navy on 9 August 1917 as SM UB-52.

She operated as part of the Pola Flotilla based in Cattaro. UB-52 was sunk by torpedo on 23 May 1918 at 41.6°N, 18.86667°W by the British submarine HMS H4 enforcing the Otranto Barrage at the southern end of the Adriatic, with all hands lost.

Construction
UB-52 was ordered by the GIN on 20 May 1916. She was built by Blohm & Voss, Hamburg and following just under a year of construction, launched at Hamburg on 8 March 1917. UB-52 was commissioned later that same year under the command of Oblt.z.S. Otto Launburg.

Like all Type UB III submarines, UB-52 carried 10 torpedoes and was armed with a 8.8 cm deck gun. UB-52 would carry a crew of up to 3 officer and 31 men and had a cruising range of 9,040 nmi. UB-52 had a displacement of 516 t while surfaced and 651 t when submerged. Her engines enabled her to travel at 13.6 kn when surfaced and 8 kn when submerged.