SM UB-66

SM UB-66 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 German Imperial Navy on 1 August 1917 as SM UB-66.

UB-66 was sunk by HMS Campanula at 38.5°N, 24.41667°W on 18 January 1918, 30 crew members died in the event.

Construction
She was built by Friedrich Krupp Germaniawerft of Kiel and following just under a year of construction, launched at Kiel on 31 May 1917. UB-66 was commissioned later that same year. Like all Type UB III submarines, UB-66 carried 10 torpedoes and was armed with a 8.8 cm deck gun. UB-66 would carry a crew of up to 3 officer and 31 men and had a cruising range of 9090 nmi. UB-66 had a displacement of 513 t while surfaced and 647 t when submerged. Her engines enabled her to travel at 13.2 kn when surfaced and 7.6 kn when submerged.