SMS was an armored warship of the German (Imperial Navy). Laid down at the AG Vulcan shipyard in Stettin in 1883, the ship was launched in December 1884 and commissioned into the Navy in April 1886. was intended to have been a fifth member of the of sortie corvettes, but budgetary limitations and dissatisfaction with the class prompted a redesign that bore little resemblance to the earlier vessels. mounted her main battery of eight guns amidships, six in a central casemate on the main deck and two directly above them on the broadside. She was the first German capital ship constructed entirely from German-made steel.
did not see significant service with the German Navy. She participated in fleet training maneuvers in the late-1880s and early 1890s, but she spent the majority of the 1890s in reserve. Her only major deployment came in 1897–1898 when she joined an international naval demonstration to protest the Greek annexation of Crete. In 1900, she was withdrawn from active duty and used as a harbor defense ship. From 1912 to 1919, she was used by the High Seas Fleet as a target ship; she was sold for scrapping in 1919 and broken up that year.
Design
Following the Franco-Prussian War of 1870–1871, General Albrecht von Stosch became the Chief of the Imperial Admiralty; he immediately set about drafting a new fleet plan that was based on the previous program that had been approved in 1867. Stosch saw the role of the navy as primarily defensive; a fleet of ironclad warships would be kept in German waters to defend the coast against the type of blockade the Danish Navy had imposed during the Second Schleswig War and the French Navy had put into place during the Franco-Prussian conflict. Stosch's fleet plan, finalized in 1873, called for a total of eight ocean-going ironclads and six smaller, armored corvettes suited for operations in coastal waters. The ocean-going component had been completed with the , and of the six corvettes, five had been built: and the four s. The last corvette was originally intended to be a fifth -type vessel, but dissatisfaction with the design led many senior officers to push for a revised version.
Work on the new design began in 1879, but parliamentary objections to naval expenditures, particularly after the accidental sinking of the ironclad in 1878, delayed construction of the vessel. Stosch initially sought to secure funding for two ships of the design, with the intention to retain one as a material reserve to be mobilized in the event of war, but the refused. Stosch proposed the new vessel for the 1879–1880 fiscal year, which was refused, leading him to drop the request for the next year's budget. Finally on 7 December 1881, the parliament voted to approve funds for , albeit an amount significantly less than the navy desired. The budgetary constraints severely limited the ability of the design staff to produce an effective improvement on the s. On the available budget, the new ship's displacement would have to be reduced by some compared to the s. The limited displacement forced a reversion to the casemate ship arrangement, as well as a reduction in the caliber of guns from to . To somewhat offset the reduction in offensive power, these guns were of a new, longer 30-caliber type that had a higher muzzle velocity than the shorter 22-caliber guns carried by the class.
Assessment of the design is mixed; the ship was an anachronism, being the last casemate ship to be laid down by any navy (though the Ottoman ironclad was completed later). The naval historian Erich Gröner states that was an "experimental design, of no real value in combat." Conway's All the World's Fighting Ships concurs, stating that was "considered to be of little fighting value by the time she was completed." The historian Aidan Dodson criticized the ship as being "a poor investment [that] failed to make her designed speed by and had a form that lead to a rapid drop-off of speed in head seas." The 1889 edition of the Brassey's Naval Annual reported a contradictory opinion, however, stating that "The majority of German naval critics are dissatisfied to a greater or less extent with all of these vessels, the , , , and excepted."
General characteristics
was long at the waterline and long overall. She had a beam of and a draft of forward and aft. As designed, the vessel displaced , and when fully loaded, her displacement increased to . Her hull was constructed with transverse and longitudinal steel frames; iron was used for the stem and stern. The hull was divided into twelve watertight compartments and incorporated a double bottom that ran for 60 percent of the length of its length. As was common for capital ships of the era, s hull was fitted with a pronounced ram bow. The ship had a conning tower forward with a short hurricane deck directly astern; a smaller, secondary conning position was placed further aft. The ship was fitted with a single heavy military mast with a fighting top, which was located amidships. A smaller pole mast was placed near the stern. was the first German capital ship built entirely from German-made steel, apart from her stern.
The German navy regarded as an adequate sea boat, though she suffered from significant pitching. As a result of her tendency to pitch severely, a ballast was permanently installed in the bow. She also lost a great deal of speed in heavy seas; at conditions above Beaufort sea state 6, this could be up to a 25 percent loss of speed. The ship could not operate under severe weather conditions. Her transverse metacentric height was . Her standard complement consisted of 34 officers and 355 enlisted men, though her crew was later reorganized to 32 officers and 401 enlisted sailors. She carried a number of smaller boats, including one picket boat, one launch, two pinnaces, two cutters, two yawls, and one dinghy.
Machinery was powered by two horizontal 4-cylinder double-expansion steam engines in separate engine rooms; the two engines each drove a three-bladed screw propeller that was in diameter. Steam was provided to the engines by eight transverse, cylindrical fire-tube boilers, divided into two boiler rooms. Each boiler was equipped with three fireboxes, for a total of 24, which operated at up to using forced draft. The boiler rooms were vented through a pair of funnels, which were placed fore and aft of the main mast. The engines were designed to operate at for a top speed of . On speed trials, her engines slightly exceeded the designed horsepower, at , though made only .
The ship's coal storage was severely limited due to the size constraints imposed by the authorized budget. She was designed to store of coal normally, though she could accommodate up to under wartime conditions. An additional of coal could be stored on her deck for longer voyages. At a cruising speed of , could steam for . Increasing her speed by one knot reduced her range to , and at , she could cruise for only . In comparison, the -class ships could steam for at 10 knots. Steering was controlled by a single rudder. She was equipped with three electric generators with a total output of 29 kilowatts at 65 volts.
Armament and armor
carried eight MRK L/30 hooped guns in an unusual configuration: six guns on the main deck, one on each broadside, four in embrasures at each corner of the central battery, which was sponsoned over the hull to give a measure of end-on fire, and two on the upper deck firing broadside. These guns were supplied with 494 rounds of ammunition, and could depress to −5° and elevate to 8°. This enabled a maximum range of . Her secondary battery consisted of four L/22 guns in single mounts. For close-range defense against torpedo boats, she carried a pair of L/24 guns in single mounts. Later in her career, she received another six of these guns to strengthen her defensive capabilities. Four torpedo tubes rounded out her armament. One was mounted in the bow, submerged, two were placed on the broadside above water, and the fourth was located in the stern, also above water. She carried ten torpedoes.
s armor consisted of compound steel backed with teak; the steel was fabricated by the Dillinger Works. The main armored belt was composed of two strakes; the steel upper strake was thick in the central citadel, where it protected the ship's vitals. The belt was reduced on either end of the central portion to . The lower strake was thick in the central section and on either end. The entire belt was backed with 250 mm of teak amidships and 300 mm of teak on either end. The sides of the armored casemates for the main battery were thick. The ship's deck was thick. Her forward conning tower had thick sides and a thick roof. The rear conning tower was given only splinter protection, with thick sides and a thick roof.
Service history Construction – 1890
was laid down in the spring of 1883 at the AG Vulcan shipyard in Stettin, under yard number 132, with the provisional designation "E". She was launched on 20 December 1884, where the ship was christened by Friedrich August, who would go on to be the grand duke of Oldenburg, the ship's namesake. Fitting-out work thereafter commenced. She was completed by April 1886 and commissioned into the German Navy on 8 April, thereafter beginning sea trials under the command of (KzS—Captain at Sea) Heusner. Following their conclusion on 30 July, joined I Division of the fleet, alongside , , and , for the annual fleet maneuvers held in August and September. and suffered from engine troubles throughout the exercises, but performed satisfactorily. After the end of the exercises in September, was assigned as the guard ship for Kiel, where she also conducted further sea trials under the command of (KK——Corvette Captain) Max Plüddemann. On 23 December, she was decommissioned for the winter.
On 3 March 1887, was recommissioned to serve with the active squadron that year. In June, Germany began work on the Kaiser Wilhelm Canal; was among the ships present during the celebration marking the event. was assigned to the training squadron for the maneuvers in August–September 1887, along with and . The majority of the exercises were focused in the Baltic, but the fleet did conduct maneuvers in the North Sea for eight days in September. was decommissioned again for the winter on 21 October in Kiel. She remained out of service through 1888, and was recommissioned on 1 May 1889, under the command of KzS Ernst Aschmann. participated in the visit to Great Britain in August, where Wilhelm II took part in the Cowes Regatta. The ship was assigned to I Division with , , and the new cruiser . and the rest of the fleet joined the Royal Navy in a fleet review for Queen Victoria. After returning to Germany, the ships took part in the fleet maneuvers. was assigned as a guard ship on 14 September; she was also used as a training ship for engine room crews.
returned to active service with I Division in 1890. In June and July, she took part in Wilhelm II's state visit to Copenhagen, Denmark, and Christiana, Norway. After returning from the cruise in Scandinavian waters, and the rest of the division participated in the ceremonial transfer of the island of Helgoland from British to German control. She was present during the fleet maneuvers in September, where the entire eight-ship armored squadron simulated a Russian fleet blockading Kiel. thereafter went to Wilhelmshaven on the North Sea, where she resumed defense and training duties on 30 September.
1891–1919