Overview
SM UB-103 was a German Type UB III submarine or U-boat in the German Imperial Navy () during World War I. She was commissioned on 18 December 1917 as SM UB-103. UB-103 was sunk in the English Channel at by British warships and SSZ 1, a SSZ class airship. All hands were lost.
Construction
She was built by Blohm & Voss of Hamburg and, after just under a year of construction, launched at Hamburg on 7 July 1917. UB-103 was commissioned later the same year, under the command of KptLt Paul Hundius. Like all Type UB III submarines, UB-103 carried 10 torpedoes and was armed with a deck gun. UB-103 had a crew of up to three officers and 31 men, and its cruising range was . UB-103 had a displacement of while surfaced and when submerged. Her engines enabled her to travel at when surfaced and when submerged.