In the mid 30`s, two artillery ships were built to train personnel for the German Kriegsmarine, and Brummer which was one of these, was launched 8. February 1936. Even if Brummer was designed for AA training, she was also equipped for mine laying which was her primary task in wartime operations. Brummer was also used to test the new steam turbine systems that were designed for the new destroyers. These test showed no errors, but this proved to be a fatal error, and later on the German destroyers got problems with the systems. Brummer was until the invasion of Poland used as a school ship at the German "Marineflugabwehr- und Küstenartillerieschule", and had several official visits in Scandinavian ports. At the attack on Polen in September 1939, Brummer was put in service with mine laying in the Baltic. After Poland had fallen for the quick invasion, Brummer was put in service as a commerce raider in the Baltic, where she did service until April 1940. In the beginning of april 1940 the operation Weserübung was ready, and Brummer should take part during the invasion of Norway. On 14 April, five days after the war was a fact between Norway and Germany, Brummer was torpedoed by the British submarine Sterlet at Jutland. Brummer got her whole bow blown away but was still afloat after the torpedo attack and was therefore put under tow with direction towards the Norwegian coast and a safe harbor. For nine hours Brummer stayed afloat and crawled slowly towards a safe harbor, but right outside Tvistein lighthouse she tipped over and disappeared in the deep. The wreck of Brummer rests today on a depth of eighty meters ...