In a nine-month career that encompassed seven patrols UC-41 was credited with sinking nineteen ships totaling 19,587 tons, either by torpedo or by mines laid. This total may include the tiny naval fishing smacks Nelson and Ethel & Millie during an engagement on 15 August 1917. The Skipper of Nelson, Thomas Crisp was killed and posthumously awarded the Victoria Cross, while the crew of the Ethel & Millie were taken prisoner and presumably were still aboard when the submarine was sunk.