The Bismarck

The two Bismarck-class battleships were designed in the mid-1930s by the German Kriegsmarine as a counter to French naval expansion, specifically the two Richelieu-class battleships France had started in 1935. Laid down after the signing of the Anglo-German Naval Agreement of 1935, Bismarck and her sister Tirpitz were nominally within the 35,000-long-ton (36,000 t) limit imposed by the Washington regime that governed battleship construction in the interwar period. The ships secretly exceeded the figure by a wide margin, though before either vessel was completed, the international treaty system had fallen apart following Japan's withdrawal in 1937, allowing signatories to invoke an "escalator clause" that permitted displacements as high as 45,000 long tons (46,000 t).

Bismarck displaced 41,700 t (41,000 long tons) as built and 50,300 t (49,500 long tons) fully loaded, with an overall length of 251 m (823 ft 6 in), a beam of 36 m (118 ft 1 in) and a maximum draft of 9.9 m (32 ft 6 in). The battleship was Germany's largest warship, and displaced more than any other European battleship, with the exception of HMS Vanguard, commissioned after the end of the war. Bismarck was powered by three Blohm & Voss geared steam turbines and twelve oil-fired Wagner superheatedboilers, which developed a total of 148,116 shp (110,450 kW) and yielded a maximum speed of 30.01 knots (55.58 km/h; 34.53 mph) on speed trials. The ship had a cruising range of 8,870 nautical miles (16,430 km; 10,210 mi) at 19 knots (35 km/h; 22 mph).Bismarck was equipped with three FuMO 23 search radar sets, mounted on the forward and stern rangefinders and foretop.