Unterseeboot 27

Unterseeboot 27 (U-27) has been the designation of two submarines of the German Navy.

During World War One, U-27 was launched on July 14, 1913, and commissioned into the Kaiserliche Marine on May 8, 1914 with Kapitänleutnant Wegener in command. In ten war patrols, Wegener sank 29 ships totaling 29,402 tons.

On August 19, 1915, U-27 was sunk and her entire crew including Kptlt. Wegener was killed in the Baralong Incident.

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The second U-27 was a Type VIIA submarine of the Kriegsmarine. Her keel was laid down November 11, 1935, by AG Weser of Bremen. She was commissioned August 12, 1936 with Korvettenkapitän Hans Ibbeken in command. Ibbeken was relieved on October 4, 1937, by Johannes Franz, who commanded the boat until June 6, 1939 when Hans-Georg von Friedeburg assumed command for barely one month. He was relieved on July 8, 1939 by Johannes Franz, who commanded the boat until her loss.

U-27 conducted one war patrol, sinking two ships totalling 624 tons.

U-27 suffered no casualties to any of her crews. On September 20, 1939, she was sunk west of Scotland by depth charges from the British destroyers HMS Fortune and Forester. All 38 crewmen survived.