 She was commissioned into the German Imperial Navy on 11 October 1916 as SM "UC-41".In a nine-month career that encompassed seven patrols "UC-41" was credited with sinking 18 ships totaling 19,587 tons, either by torpedo or by mines laid.The writer David Masters attributed the sinking of the two tiny naval fishing smacks "Nelson" and "Ethel & Millie" to "UC-41" during an engagement on 15 August 1917.