SM UB-55

SM UB-55 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 Flanders Flotilla of the German Imperial Navy on 1 July 1917 as SM UB-55.

She operated as part of the Flanders Flotilla based in Zeebrugge. UB-55 was sunk at 05:05 on 22 April 1918 at 51.01667°N, 1.33333°W after striking a mine, 30 crew members lost their lives in the event.

Construction
She was built by AG Weser, Bremen and following just under a year of construction, launched at Bremen on 9 May 1917. UB-55 was commissioned later that same year under the command of Kptlt. Ralph Wenninger. Like all Type UB III submarines, UB-55 carried 10 torpedoes and was armed with a 8.8 cm deck gun. UB-55 would carry a crew of up to 3 officer and 31 men and had a cruising range of 9,020 nmi. UB-55 had a displacement of 516 t while surfaced and 646 t when submerged. Her engines enabled her to travel at 13.4 kn when surfaced and 7.8 kn when submerged.