SMS Hamburg

SMS Hamburg ("His Majesty's Ship Hamburg") was the second member of the seven-vessel Bremen class of light cruisers, built for the German Kaiserliche Marine (Imperial Navy) in the early 1900s. She and her sister ships were ordered under the 1898 Naval Law that required new cruisers be built to replace obsolete vessels in the fleet. The design for the Bremen class was derived from the preceding Gazelle class, utilizing a larger hull that allowed for additional boilers that increased speed. Named for the city of Hamburg, the ship was armed with a main battery of ten 10.5 cm (4.1 in) guns and had a top speed of 22 knots (41 km/h; 25 mph).

Hamburg served with the reconnaissance force of the main fleet for the majority of her early career, and during this period, she frequently escorted Hohenzollern, the yacht of Kaiser Wilhelm II. During World War I, she served as the deputy flagship of a flotilla of U-boats, and she frequently cruised with the High Seas Fleet during patrols in the North Sea. She was present at the Battle of Jutland on 31 May – 1 June 1916, where she was damaged in clashes with British light forces as the German fleet withdrew in the night. Obsolescent by that time, Hamburg was reduced to a stationary headquarters ship and was also used as an accommodation ship for the rest of the war.

Following Germany's defeat, Hamburg remained in Germany and was among the vessels permitted to the Reichsmarine by the Treaty of Versailles. She was among the first vessels to be recommissioned in 1920 and in 1921, while escorting minesweepers, she engaged Soviet coastal artillery. Her crew assisted in the suppression of unrest in Hamburg in October 1923. Reduced to a training ship in 1926, she embarked on a world cruise, after which she was decommissioned and reduced to a barracks ship. She served in that capacity in Kiel until early 1944, when the Nazi-era Kriegsmarine moved her to Hamburg to be broken up; British bombers sank the ship in April before she could be dismantled. The wreck was raised after the war in 1949 and was finally scrapped by 1956.

The German 1898 Naval Law called for the replacement of the fleet's older cruising vessels—steam corvettes, unprotected cruisers, and avisos—with modern light cruisers. The first tranche of vessels to fulfill this requirement, the Gazelle class, were designed to serve both as fleet scouts and as station ships in Germany's colonial empire. They provided the basis for subsequent designs, beginning with the Bremen class that was designed in 1901–1903. The principle improvements consisted of a larger hull that allowed for an additional pair of boilers and a higher top speed.

Hamburg was 111.1 meters (365 ft) long overall and had a beam of 13.3 m (44 ft) and a draft of 5.28 m (17.3 ft) forward. She displaced 3,278 metric tons (3,226 long tons) as designed and up to 3,651 t (3,593 long tons) at full load. The ship had a minimal superstructure, which consisted of a small conning tower and bridge structure. Her hull had a raised forecastle and quarterdeck, along with a pronounced ram bow. She was fitted with two pole masts. She had a crew of 14 officers and 274–287 enlisted men.

Her propulsion system consisted of two triple-expansion steam engines driving a pair of screw propellers. Steam was provided by ten coal-fired Marine-type water-tube boilers, which were vented through three funnels located amidships. Her propulsion system was rated at 10,000 metric horsepower (9,900 ihp) for a top speed of 22 knots (41 km/h; 25 mph). Hamburg carried up to 860 t (850 long tons) of coal, which gave her a range of 4,270 nautical miles (7,910 km; 4,910 mi) at 12 knots (22 km/h; 14 mph).

The ship was armed with a main battery of ten 10.5 cm (4.1 in) SK L/40 guns in single mounts. Two were placed side by side forward on the forecastle; six were located on the broadside, three on either side; and two were placed side by side aft. The guns could engage targets out to 12,200 m (13,300 yd). They were supplied with 1,500 rounds of ammunition, for 150 shells per gun. For defense against torpedo boats, she carried ten 3.7 cm (1.5 in) Maxim guns in individual mounts. She was also equipped with two 45 cm (17.7 in) torpedo tubes with five torpedoes. They were submerged in the hull on the broadside.

The ship was protected by a curved armored deck that was up to 80 mm (3.1 in) thick; it sloped down at the sides to provide a measure of protection against enemy fire. The conning tower had 100 mm (3.9 in) thick sides, and the guns were protected by 50 mm (2 in) thick gun shields.