was a heavy cruiser of Nazi Germany's , the fifth and final member of the , but was never completed. The ship was laid down in August 1937 and launched in July 1939, after which the Soviet Union requested to purchase the ship. The agreed to the sale in February 1940, and the transfer was completed on 15 April. The vessel was still incomplete when sold to the Soviet Union, with only half of her main battery of eight guns installed and much of the superstructure missing.

Renamed in September 1940, work on the ship was delayed by poor German-Soviet co-operation in crew training and provision of technical literature to enable completion of the ship, which was being carried out in the Leningrad shipyards. Still unfinished when Germany invaded the Soviet Union in June 1941, the ship briefly took part in the defense of Leningrad by providing artillery support to the Soviet defenders. She was heavily damaged by German artillery in September 1941, sunk in April 1942, and raised in September 1942. After repairs were effected, the ship was renamed and used in the Soviet counter-offensive that relieved Leningrad in 1944. After the end of the war, the ship was used as a stationary training platform and as a floating barracks before being broken up for scrap sometime between 1953 and 1961.

German cruiser Lützow (1939)

Design

The of heavy cruisers was ordered in the context of German naval rearmament after the Nazi Party came to power in 1933 and repudiated the disarmament clauses of the Treaty of Versailles. In 1935, Germany signed the Anglo–German Naval Agreement with Great Britain, which provided a legal basis for German naval rearmament; the treaty specified that Germany would be able to build five "treaty cruisers". The s were nominally within the 10,000-ton limit, though they significantly exceeded the figure.

German cruiser Lützow (1939)

was long overall and had a beam of and a maximum draft of . The ship had a design displacement of and a full load displacement of . was powered by three sets of geared steam turbines, which were supplied with steam by twelve ultra-high pressure oil-fired boilers. The ship's top speed was , at . As designed, her standard complement consisted of 42 officers and 1,340 enlisted men.

German cruiser Lützow (1939)

s primary armament was eight SK L/60 guns mounted in four twin gun turrets, placed in superfiring pairs forward and aft. Her anti-aircraft battery was to have consisted of twelve L/65 guns, twelve guns, and eight guns. The ship also would have carried a pair of triple torpedo launchers abreast of the rear superstructure. The ship was to have been equipped with three Arado Ar 196 seaplanes and one catapult. s armored belt was thick; her upper deck was thick while the main armored deck was thick. The main battery turrets had thick faces and 70 mm thick sides.

Service history

was ordered by the from the shipyard in Bremen. was originally designed as a light cruiser version of the -class heavy cruisers, armed with twelve guns instead of the s eight 20.3 cm guns. The decided, however, to complete the ship identically to on 14 November 1936. Her keel was laid on 2 August 1937, under construction number 941. The ship was launched on 1 July 1939, but was not completed.

In October 1939, the Soviet Union approached Germany with a request to purchase the then unfinished -class cruisers , , and , along with plans for German capital ships, naval artillery, and other naval technology. The denied the request for and , but agreed to sell , as well as gun turrets and other weaponry. The price for the heavy cruiser was set at 150 million Reichsmarks, nearly double the original cost of the vessel, which was 83,590,000 . Complete technical specifications, the results of engine trials, and spare parts were included in the sale. Eighty percent of the material was to be provided within twelve months of the transfer, with the remainder to be provided within fifteen months. was renamed "L", her original contract name, for the transfer to the Soviet Union.

In February 1940, when the agreement was concluded, was fitting-out in Bremen. Her main battery guns had been transferred to the German army and placed on railway mountings; they had to be dismantled and returned to Bremen. The ship was then towed to Leningrad on 15 April by a private German towing company. The two navies agreed that Germany would be responsible for naval escort, which included destroyers and smaller vessels. Rear Admiral Otto Feige was placed in command of the operation. Feige then led an advisory commission assigned to assist the Soviet effort to complete the ship.