Name UB-73 Yard number 97 Launched 11 August 1917 | Ordered 23 September 1916 Commissioned 2 October 1917 Draft 3.7 m | |
 | ||
Cost 3,337,000 German Papiermark Fate surrendered to the French on 21 November 1918, broken up at Brest July 1921. Builders AG Vulcan Stettin, Hamburg | ||
SM UB-73 was a German Type UB III submarine or U-boat in the German Imperial Navy (German: Kaiserliche Marine) during World War I. She was commissioned into the German Imperial Navy on 2 October 1917 as SM UB-73.
UB-73 was serving in the Mediterranean. On 21 November 1918 she was surrendered to France as required by the regulations of the Armistice with Germany.
Construction
UB-72 was ordered by the GIN on 23 September 1916.
She was built by AG Vulcan of Hamburg and following just under a year of construction, launched at Hamburg on 11 August 1917. UB-73 was commissioned later that same year . Like all Type UB III submarines, UB-73 carried 10 torpedoes and was armed with a 8.8 cm (3.46 in) deck gun. UB-73 would carry a crew of up to 3 officer and 31 men and had a cruising range of 8,420 nautical miles (15,590 km; 9,690 mi). UB-73 had a displacement of 508 t (500 long tons) while surfaced and 639 t (629 long tons) when submerged. Her engines enabled her to travel at 13.4 knots (24.8 km/h; 15.4 mph) when surfaced and 7.5 knots (13.9 km/h; 8.6 mph) when submerged.