SM UB-89

SM UB-89 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 25 February 1918 as SM UB-89.

UB-89 was lost in a collision with the light cruiser SMS Frankfurt in Kiel. Seven crew members perished in the accident. On 30 October 1918 the boat was raised by the salvage ship SMS Cyclop. On 7 March 1919, en route to surrender, UB-89 began to drift and was towed to Ymuiden. In 1920, the boat was broken up in Dortrecht

Construction
She was built by AG Vulcan of Hamburg and following just under a year of construction, launched at Hamburg on 22 December 1917. UB-89 was commissioned early the next year. Like all Type UB III submarines, UB-89 carried 10 torpedoes and was armed with a 10.5 cm deck gun. UB-89 would carry a crew of up to 3 officer and 31 men and had a cruising range of 7120 nmi. UB-89 had a displacement of 510 t while surfaced and 640 t when submerged. Her engines enabled her to travel at 13 kn when surfaced and 7.4 kn when submerged.