Bismarck was a German battleship, the keel of which was laid in 1936 and launched in February 1939. The battleship entered the rope service in the German Navy (German Kriegsmarine) in August 1940. The ship was 251 meters long, 36 meters wide, and had a full displacement of 53,000 tons. Bismarck's top speed was around 29-30 knots. The main armament was 8 380 mm guns in four twin turrets, and the secondary armament included: 12 150 mm guns or 16 105 mm guns. The Bismarck was the first ship of the type with the same name - the Bismarck. It was ordered to replace in line the old battleship Hannover, completely obsolete in the 1930s. At the time of launch, Bismarck was the largest German ship and the largest European battleship. It had good armor, and its main or secondary armament was inferior to its counterparts on British ships. He made his maiden voyage in September 1940, when he was ferry to Gdynia, which was to be his home port. Bismarck's combat trail during World War II was very short. Bismarck set out on its first combat voyage on May 19, 1941 - it was supposed to perform cruising operations in the Atlantic and attack primarily Allied convoys. In carrying out this plan, Bismarck, with the accompanying heavy cruiser Prinz Eugen, was already crossing the Danish Strait a few days later. On May 24, a battle took place in this strait between the German team and British ships, as a result of which the battlecruiser HMS Hood was sunk and Bismarck itself was badly damaged. After this battle, significant Royal Navy forces - including the Polish destroyer ORP Piorun - were directed against Bismarck, which the German ship tracked down and sent to the bottom on May 27, 1941. It is worth noting that there is a probable hypothesis assuming that the battleship Bismarck was self-sunk by the crew in connection with the damage sustained in combat on May 27, which made it impossible to return to the base on its own.