 Deutschland-class battleships in line[a] | |
| Class overview | |
|---|---|
| Builders | |
| Operators | |
| Preceded by | Braunschweig class |
| Succeeded by | Nassau class |
| Built | 1903–1908 |
| In commission | 1906–1945 |
| Completed | 5 |
| Lost | 3 |
| Scrapped | 2 |
| General characteristics | |
| Type | Pre-dreadnought battleship |
| Displacement | |
| Length | Overall length: 127.6 m (418 ft 8 in) |
| Beam | 22.2 m (72 ft 10 in) |
| Draft | 8.21 m (26 ft 11 in) |
| Installed power | |
| Propulsion |
|
| Speed | 18.5 to 19.1knots (34.3 to 35.4 km/h; 21.3 to 22.0 mph) |
| Range | 4,800 nmi (8,900 km; 5,500 mi); 10 knots (19 km/h; 12 mph) |
| Complement |
|
| Armament |
|
| Armor | |
TheDeutschland class was a group of fivepre-dreadnought battleships built for the GermanKaiserliche Marine (Imperial Navy), the last vessels of that type to be built in Germany. The class comprisedDeutschland, thelead ship,Hannover,Pommern,Schlesien, andSchleswig-Holstein. The ships closely resembled those of the precedingBraunschweig class, but with stronger armor and a rearrangedsecondary battery. Built between 1903 and 1908, they were completed after the launch of the revolutionary Britishall-big-gun battleshipHMS Dreadnought in 1906. As a result, they were obsolescent before entering service. The ships nevertheless saw extensive service in theHigh Seas Fleet, Germany's primary naval formation, through the late 1900s and early 1910s, when they were used for training, which included overseas cruises.
Following the start ofWorld War I in July 1914, the German fleet adopted a strategy of raids on the British coast, which the fiveDeutschland-class ships supported. These operations culminated in theBattle of Jutland on 31 May – 1 June 1916, where all five ships saw action, despite their marked inferiority to British dreadnoughts. Regardless, they intervened to protect the battered Germanbattlecruisers from their British counterparts, allowing them to escape. In the confused night actions,Pommern was torpedoed and sunk by a British destroyer. After the battle, the four surviving ships were removed from front-line service and used for coastal defense through mid-1917. Thereafter,Hannover alone remained on patrol duty, while the rest were used asbarracks ortraining ships. After Germany's defeat, theTreaty of Versailles permitted the postwar navy to retain several old battleships for coastal defense, including the fourDeutschland-class ships.
Deutschland wasbroken up in 1920–1922, but the remainder were modernized and returned to active service in the mid-1920s. Their activities mirrored those of the pre-war period, including overseas training cruises and extensive fleet maneuvers.Hannover was decommissioned in 1931 and was to be converted into a target vessel, although this was never done. She was eventually broken up in 1944–1946.Schlesien andSchleswig-Holstein remained in service for training duties through the 1930s into theNazi-eraKriegsmarine (War Navy). Both ships saw limited duty duringWorld War II, including bombardment of Polish forces during theinvasion of Poland in September 1939 and theoccupation of Denmark andinvasion of Norway in April 1940. Both ships were sunk near the end of the war.
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In 1900,Vizeadmiral (Vice Admiral)Alfred von Tirpitz, the State Secretary for theReichsmarineamt (Imperial Naval Office), secured the passage of theSecond Naval Law, an amendment to the First Naval Law of 1898. The previous law had called for a total strength of nineteen battleships by 1 April 1904, which was reached with the fiveWittelsbach-class battleships, but the new law increased the projected battle fleet to a total of thirty-eight. The first tranche of vessels—theBraunschweig class—introduced the28 cm (11 in) gun, marking a significant increase in firepower over earlier German battleships. The naval command had intended to build ten battleships of theBraunschweig type, starting with the 1901fiscal year with two ships built per year, but they ultimately only built five. During construction of theBraunschweigs, a series of minor improvements were incorporated into subsequent designs. By the time work began on the second vessel of the 1903 fiscal year, which becameSMS Deutschland, a more significantly altered design had been prepared.[1][2]
A series of changes were made to thesecondary and tertiary batteries for what becameDeutschland, thelead ship of the new class. The designers discarded thewing turrets that theBraunschweigs had used for some of their secondary guns; the turrets had required support structures whose elimination saved weight and allowed the designers to place the secondary battery entirely incasemates in a more efficient arrangement. Removing the turrets freed up deck space that was used to add another pair of 8.8 cm (3.5 in) guns and place the forward set of four in protectiveembrasures.Deutschland and hersister shipHannover were designed for use asflagships for the fleet and asquadron, respectively, which required additional accommodation spaces. AfterDeutschland, which mixed sets offire-tube andwater-tube boilers, the remaining four members of the class received a uniform set of water-tube boilers. These were lighter, and the weight savings were passed on to the armor layout in the form of a slightly thickerarmor belt and a strengthened upperdeck.[3]
TheDeutschland design was criticized in Germany at the time the ships were being built, as the trend in all the major navies pointed to battleships armed with all-big-gun batteries; indeed, work on what would become the design for theNassau class ofdreadnought battleships had already begun in 1903. Tirpitz insisted on building theDeutschlands because they were the largest design that could fit in Germany's existing naval infrastructure, most significantly theKaiser Wilhelm Canal. Widening the canal and improving harbor facilities would be excessively expensive and Tirpitz sought to avoid another budgetary fight with theReichstag so soon after the passage of the 1900 law. As a result, theDeutschland-class battleships were rendered obsolescent almost immediately by thecommissioning of the BritishHMS Dreadnought in December 1906.[4][5]
TheDeutschland-class ships were 125.9 m (413 ft 1 in)long at the waterline and 127.6 m (418 ft 8 in)overall. They had abeam of 22.2 m (72 ft 10 in) and adraft of 8.21 m (26 ft 11 in) forward. The ships were designed todisplace 13,191 metric tons (12,983 long tons)normally, and displaced up to 14,218 metric tons (13,993 long tons) atfull load. Their hulls were built with transverse and longitudinal steel frames, to which steel hull plates wereriveted. The hull was divided into twelvewatertight compartments, althoughPommern had thirteen compartments. Their hulls included adouble bottom that ran for 84 percent of the length of the ship.[6]
BecauseDeutschland andHannover were completed as flagships, they had an enlargedsuperstructure aft to house the larger command staffs they typically carried.Deutschland had a larger forwardconning tower that incorporated a central fire-control position;Pommern received the same conning tower, but the other three ships had shorter towers without the fire-control room.[7] All five members of the class were fitted with shortmilitary masts with lighter poles atop them that were fitted withspotting tops. The ships handled less easily than the precedingBraunschweig-class ships, though they suffered less markedweather helm. Theirmetacentric height was 0.98 m (3 ft 3 in). Steering was controlled with a singlerudder.[6]
The ships' crews numbered 35 officers and 708 enlisted men. When one of them was a flagship, the crew was augmented with an admiral's staff. A squadron commander's staff consisted of 13 officers and 66 enlisted men, while a divisional commander had a staff of 2 officers and 23 enlisted men. After she became a training ship in 1935,Schlesien's crew consisted of 29 officers and 559 enlisted men, plus up to 214 cadets.Schleswig-Holstein differed somewhat; her crew as a training ship numbered 31 officers and 565 men and up to 175cadets.Deutschland and her sisters carried several smaller vessels, including two picket boats, one admiral's barge, twolaunches, onepinnace, twocutters, twoyawls, and twodinghies.[6] The boats were handled with a pair of large cranesamidships;Deutschland had hers located further forward than the other members of the class.[7]
Deutschland and her sisters were equipped with threetriple-expansion steam engines that each drove ascrew propeller; the outer screws were three-bladed and 4.80 m (15 ft 9 in) in diameter, while the center shaft used a four-bladed screw that was 4.5 m (14 ft 9 in) in diameter. Each engine was placed in its ownengine room.Deutschland was fitted with eight water-tube boilers and six fire-tube boilers, but the rest of the vessels received twelve water-tube models, all of which were coal-fired. These were divided into threeboiler rooms, each of which was ducted into afunnel.[8]
Deutschland's engines were rated at 16,000metric horsepower (15,781 ihp; 11,768 kW), while the other four ships' engines were rated at 17,000 metric horsepower (16,767 ihp; 12,503 kW). The design speed for all of the ships was 18knots (33 km/h; 21 mph), though on trials all five ships exceeded both figures,Deutschland reaching 17,000 metric horsepower (17,000 ihp; 13,000 kW) for 18.6 knots (34.4 km/h; 21.4 mph) and the other members of the class making 17,696 to 19,330 metric horsepower (17,454 to 19,066 ihp; 13,015 to 14,217 kW) for 18.5 to 19.1 knots (34.3 to 35.4 km/h; 21.3 to 22.0 mph).Schleswig-Holstein was the fastest member of the class on her trials.[9]
Deutschland was designed to carry 700 t (690 long tons; 770 short tons) of coal and the other members could carry 850 t (840 long tons; 940 short tons), though other spaces could be utilized as fuel storage, which increased fuel capacity to 1,540 t (1,520 long tons; 1,700 short tons) forDeutschland and 1,750 t (1,720 long tons; 1,930 short tons) for the other four vessels. This provided a maximum range of 4,800nautical miles (8,900 km; 5,500 mi) at a cruising speed of 10 knots (19 km/h; 12 mph).[9] Electrical power was supplied from fourturbo generators that provided 260 kilowatts (350 hp) each at 110 volts.[10]
The ships carried the samemain battery as the precedingBraunschweig class. The primary armament comprised four 28 cm SK L/40[e] quick-firing guns in hydraulically operated twin turrets. The turrets were placed on the centerline, one forward and one aft. The C/01 turrets allowed the guns to depress to −4 degrees, and elevate to +30 degrees, which enabled a maximum range of 18,800 meters (61,700 ft). The guns fired 240-kilogram (530 lb) shells at amuzzle velocity of 820meters per second (2,700 ft/s).[12][13] Ammunition storage amounted to 85 shells per gun.[10]
The secondary battery consisted of fourteen17 cm SK L/40 quick-firing guns, all of which were mounted in casemates. Five were placed on either side in the upper deck and the remaining four were located a deck above in the superstructure, one on each corner. The guns fired 64-kilogram (141 lb) shells at a muzzle velocity of 850 meters per second (2,800 ft/s). These guns were chosen as they used the largest shell that could be reasonably handled without machinery. The guns could elevate to 22 degrees, which allowed a maximum range of 14,500 m (15,900 yd). Theirrate of fire was approximately one shot every nine to ten seconds, and each gun was supplied with 130 shells.[12][14]
For defense againsttorpedo boats, the ships carried a tertiary battery of twenty-two8.8 cm SK L/35 quick-firing guns. These were placed in casemates in hullsponsons, in embrasures in the superstructure, or in open mounts. The guns fired 7 kg (15.4 lb) shells at a muzzle velocity of 770 m/s (2,526 ft/s), and could be elevated to 25 degrees for a maximum range of 9,090 m (9,940 yd). The ammunition allotment for each gun was 130 shells. The ships were temporarily fitted with four3.7 cm (1.5 in) machine cannon, but these were quickly removed.[7][10][12]
They were also armed with six 45 cm (17.7 in)torpedo tubes, and 16torpedoes. The tubes were all placed below thewaterline, one in the bow, one in the stern, and two on eachbroadside.[10] These torpedoes were 5.15 m (16.9 ft) long and carried a 147.5 kg (325 lb)TNT warhead. They could be set at two speeds for different ranges. At 26 knots (48 km/h; 30 mph), the weapons had a range of 3,000 m (9,800 ft). At an increased speed of 31 knots (57 km/h; 36 mph), the range was reduced to 1,500 m (4,900 ft).[15]
TheDeutschland-class ships were equipped withKrupp cemented armor.Deutschland had a slightly different arrangement in the belt armor and thecitadel in the superstructure.Deutschland's belt was 225 mm (8.9 in) at the waterline and tapered to 140 mm (5.5 in) on the lower edge. Her sister ships' belts were increased in thickness to 240 mm (9.4 in) at the waterline and down to 170 mm (6.7 in) on the bottom edge. In all five ships, this section of armor extended from the forwardbarbette to the aft one. On either end, the belt was reduced to 100 mm (3.9 in). In all ships, the belt was backed by a layer ofteak that was 80 mm (3.1 in) thick. Above the belt was astrake of armor that protected the casemate guns; inDeutschland, this was 160 mm (6.3 in) thick, while on the other four ships the armor was 170 mm thick. All members of the class were fitted withcorkcofferdams, a common practice at the time intended to prevent uncontrolled flooding in the event of shell hits.[10][16]
All five ships had an armored deck that was 40 mm (1.6 in) thick. The deck sloped downward at the sides to connect with the lower edge of the belt, which provided a second layer to contain shell fragments from hits that penetrated the belt. The sloped section was 97 mm (3.8 in) in the bow and stern sections where the belt was thinner, and reduced to 67 mm (2.6 in) behind the main section of belt. Their forward conning towers were protected by 300 mm (12 in) on the sides and 80 mm on the roofs, while the rear conning towers had 140 mm (5.5 in) worth of armor on the sides. The main battery gun turrets had armored sides that were 280 mm (11 in) thick and roofs that were 50 mm (2 in) thick. The barbettes that held the turrets were armored with 250 mm (9.8 in) thick steel.[10][16]
The ships of theDeutschland class were modified several times over their long careers. Modifications to the ships' masts were made between 1909 and 1914, shifting positions for searchlights and adding a fully enclosed spotting top to the fore mast.Schlesien andSchleswig-Holstein had eight oil-fired boilers installed in place of eight of their coal-fired boilers in late 1915.Deutschland had two of her 8.8 cm guns removed in late 1916 and a pair of 8.8 cm guns inanti-aircraft mountings were installed. Beginning in 1917, some of the ships began to be partially or fully disarmed so the guns could be used ashore during the war.Deutschland was completely disarmed in late 1917 andSchleswig-Holstein was reduced to just four10.5 cm (4.1 in) SK L/45 guns and four8.8 cm SK L/30 guns in 1918.Schlesien was similarly re-armed for training duties.[17][18][19][20]
As the ships were returned to active service in the early 1920s, they received a series of modernizations and alterations to their armament.Hannover, which had not been disarmed, carried her original battery of 28 cm and 17 cm guns, though her 8.8 cm battery had been reduced to eight weapons by the time she was recommissioned in 1921. All six of her torpedo tubes were removed at that time.Schlesien andSchleswig-Holstein were modernized in the mid-1920s, which included the re-installation of their 28 cm batteries, but in place of their 17 cm guns they each received fourteen15 cm (5.9 in) SK L/45 guns, along with eight 8.8 cm guns as onHannover. They had large tubular fore masts installed, which had large spotting tops.Schlesien had her two forward funnels merged, whileSchleswig-Holstein had hers similarly modified in 1928.Schlesien had her forward sponsons plated over.[21][22]
In 1930 and 1931, the ships were modified again.Hannover had a pair of above-water 50 cm (20 in) torpedo tubes fitted and four of her 8.8 cm guns were replaced with 8.8 cm anti-aircraft guns. A tubular mast like her sisters' was installed, and she had her bow sponsons plated over.Schlesien andSchleswig-Holstein each lost two of their 15 cm guns, received four of the 50 cm torpedo tubes, and exchanged all of their 8.8 guns for four 8.8 cm anti-aircraft guns. Both ships had another pair of 15 cm guns removed in 1935;Schlesien received four 2 cm (0.79 in) anti-aircraft guns at that time andSchleswig-Holstein received four the next year. Also in 1936,Schleswig-Holstein had her sponsons removed. As part of her conversion into atraining ship,Schlesien had her remaining coal-burning boilers removed in 1938 and the boiler room became an accommodation space and training room for the cadets. The uptake from that boiler room was removed, leaving just two straight funnels.[17][23]
After the start of World War II in September 1939, both ships underwent a series of changes to their armament, particularly to their anti-aircraft batteries.Schleswig-Holstein received another eight 2 cm guns that year. In February 1940,Schlesien received four3.7 cm (1.5 in) L/83 anti-aircraft guns. In April, the ship had her remaining ten 15 cm guns removed, whileSchleswig-Holstein lost three of hers. In August,Schlesien had her 3.7 cm guns taken off to strengthen the anti-aircraft defenses ofHamburg andSchleswig-Holstein was almost completely disarmed, retaining only her 28 cm guns. The following year,Schlesien received four 8.8 cm guns, four 3.7 cm guns, and three 2 cm guns. By 1943,Hannover had been reconstructed for her planned role as a target ship, which involved removing most of her superstructure and all of her guns, though the turrets remained.Schlesien had the 3.7 cm guns returned that year, and in 1944, a pair of4 cm (1.6 in) Bofors guns were added, along with sixteen more 2 cm guns, bringing the total to twenty barrels. Later that year, the 8.8 cm guns were replaced with six 10.5 cm anti-aircraft guns, her 4 cm battery was increased to seven or ten guns, and her 2 cm battery altered to either eighteen or twenty-two guns.Schleswig-Holstein was under refit to be similarly equipped, but work was not completed before her loss; she was slated to receive six of the 10.5 cm guns, ten 4 cm guns, and twenty-six of the 2 cm guns in addition to the four 3.7 cm weapons.[24][25]
| Ship | Contract name[22] | Builder | Laid down | Launched | Commissioned |
|---|---|---|---|---|---|
| Deutschland | N | Germaniawerft,Kiel[26] | 20 June 1903[26] | 19 November 1904[26] | 3 August 1906[26] |
| Hannover | P | Kaiserliche Werft,Wilhelmshaven[27] | 7 November 1904[27] | 29 September 1905[27] | 1 October 1907[27] |
| Pommern | O | AG Vulcan,Stettin[28] | 22 March 1904[28] | 2 December 1905[28] | 6 August 1907[28] |
| Schlesien | R | Schichau-Werke,Danzig[29] | 19 November 1904[29] | 28 May 1906[29] | 5 May 1908[29] |
| Schleswig-Holstein | Q | Germaniawerft,Kiel[29] | 18 August 1905[30] | 17 December 1906[30] | 6 July 1908[30] |
AfterDeutschland entered service in 1906, she replaced the battleshipKaiser Wilhelm II as the fleet flagship, a role she held until 1913, when the new dreadnoughtFriedrich der Grosse took her place. With the commissioning of the rest of the class, the Home Fleet was reorganized as theHigh Seas Fleet in 1907. The vessels were assigned toI Battle Squadron andII Battle Squadron during this period, ultimately being concentrated in II Squadron along with three of theBraunschweig-class ships by the early 1910s as theNassau andHelgoland-class battleships filled the ranks of I Squadron.[31][32]Hannover served as the flagship of I Squadron and later as the flagship of the deputy commander of II Squadron.[33]
The ships' peacetime careers were fairly uneventful, consisting primarily of routine fleet training. Squadron and fleet exercises typically took place in April and May every year, a major fleet cruise generally followed in June and July, after which the fleet assembled for the annual large-scale maneuvers in late August and September. The major fleet cruises typically went to Norwegian waters in company withKaiser Wilhelm II'syacht, though in 1908 and 1909, the fleet embarked on long-distance cruises out into the Atlantic, making visits to mainland Spain, theCanary Islands, and theAzores. These came at the insistence of the fleet commander of the time,Prince Heinrich, who foresaw the need to operate at greater distances. During the summer cruise in July 1914, the fleet remained off Norway owing to theJuly Crisis that resulted in the start of World War I.[29][33][34][35]
Following the start of the war, the German fleet adopted a strategy of raids on the British coast to try to draw out portions of the BritishGrand Fleet where they could bedefeated in detail. Thebattlecruisers ofI Scouting Group conducted the raids while the battle squadrons of the High Seas Fleet stood by in support; these included theraid on Yarmouth in November 1914, theraid on Scarborough, Hartlepool and Whitby in December, andbombardment of Yarmouth and Lowestoft in April 1916.[36] All five members of the class operated with the fleet during this period, though the anticipated battle failed to materialize during these operations. While not conducting fleet operations, the ships of II Squadron also patrolled the mouth of the riverElbe to support the light forces defending theGerman Bight; they also conducted training exercises in the relative safety of theBaltic Sea. In February 1915,Deutschland became the flagship of II Squadron.[29][37][38][39][40]
In late May 1916, the Germans planned another operation to draw out the British fleet, which resulted in theBattle of Jutland on 31 May and 1 June. During the operation, the ships were commanded byKonteradmiral (Rear Admiral)Franz Mauve. Being significantly slower than the rest of the Germanline of battle, the ships of II Squadron saw no action during the first stages of the engagement. Toward the end of the fleet battle on the evening of 31 May, the fiveDeutschland-class ships came to the aid of the mauled battlecruisers of I Scouting Group, when Mauve placed his ships between them and their counterparts in the BritishBattle Cruiser Fleet. In the growing darkness, the Germans had difficulty making out their targets and failed to score any hits; the British managed to hit three of theDeutschlands.Pommern was forced briefly to haul out of line. Mauve then disengaged his ships, ending their only clash with Britishcapital ships during the battle. As the German fleet withdrew overnight, II Squadron took up positions toward the rear of the German line. British light forces repeatedly clashed with the German fleet, and in one of these night actions,Pommern was hit by a torpedo from thedestroyerHMS Onslaught, detonating one of her ammunitionmagazines and destroying the ship.[41][42]
The German experience at Jutland demonstrated that pre-dreadnoughts had no place in a fleet action with dreadnoughts, and so theDeutschlands spent the rest of 1916 on coastal defense duty in the Elbe and occasionally in theDanish straits. In August 1917, II Battle Squadron was disbanded and most of the ships were reduced to secondary duties, being partially disarmed to free up guns for use ashore.Deutschland andSchleswig-Holstein becamebarracks ships andSchlesien served as a training ship.Hannover remained in active service for guard duty in the straits.[19][37][43][44]
Following Germany's defeat in the war, the fleet was significantly reduced in size by theTreaty of Versailles, which permitted the Germans to retain six battleships of theBraunschweig andDeutschland classes, and another two inreserve.Deutschland was discarded in 1920 and wasbroken up by 1922, but the other three members of the class were kept by the postwar navy, which was reorganized as theReichsmarine (Navy of the Realm). All three ships were heavily modernized in the early 1920s to prepare them for active service.Hannover was the first member of the class to return to service, in 1921, becoming the fleet flagship, a role she alternated withBraunschweig.Schlesien andSchleswig-Holstein remained out of service until the middle of the decade, when they were rearmed;Schleswig-Holstein became the flagship on her recommissioning in 1926.Hannover was modernized again in the late 1920s afterSchlesien recommissioned to take her place.[19][43][45]
Throughout the 1920s, the ships took part in a training routine similar to that of the prewar years, including training exercises throughout the year and long-range training cruises that went as far as theMediterranean Sea. The ships frequently went to Norwegian waters, as they had done under the Imperial government.Hannover was decommissioned in September 1931 and saw no further service, though there were plans to convert her into atarget ship.Schleswig-Holstein andSchlesien remained on active duty into the early 1930s, but by 1933, the newheavy cruiserDeutschland had been commissioned, and soSchlesien was decommissioned to be converted into a dedicated training ship.Schleswig-Holstein followed for a similar rebuilding in 1935–1936. The two ships spent the rest of the decade trainingnaval cadets, including a lengthy voyage to North and South America forSchlesien in 1936–1937. During this period, Germany came under the control ofAdolf Hitler and theNazi party, which set upon a rearmament strategy and an aggressive foreign policy that led to the outbreak of World War II in September 1939.[46][47][48]
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Schleswig-Holstein steamed to theFree City of Danzig in late August 1939, and was moored off the Polish military depot atWesterplatte on the morning of 1 September. Sheopened fire on the base in Westerplatte, firing the first shots of World War II. The initial German attack was repulsed, leading to heavy fighting thatSchleswig-Holstein supported for the next week, and culminating in the Polish garrison's surrender on 7 September. Later that month,Schlesien joined her sister in bombarding Polish positions along the coast, including theHel Fortified Area. The ships returned to training duties after thePolish campaign, and in early 1940,Schlesien was used as anicebreaker in the Baltic Sea.[49][50]
Schleswig-Holstein andSchlesien then participated in theoccupation of Denmark andinvasion of Norway, respectively, in April 1940. Neither vessel saw action during the operations. Afterward,Schleswig-Holstein was again removed from front-line service and used as a training ship, whileSchlesien resumed her ice-breaking duties. In March 1941,Schlesien escorted mine-layers in the Baltic. After returning from this operation at the end of the month, she became a stationary training ship inGotenhafen.Schleswig-Holstein was briefly reactivated in early 1942 for ice-breaker service in the Baltic, and in May she accidentally collided with a shipwreck in theGulf of Riga, forcing a return to Gotenhafen for repairs. The ship was thereafter reduced to training duties.[51]
Hannover was broken up inBremerhaven between 1944 and 1946.[52][53] In mid-1944,Schlesien's andSchleswig-Holstein's anti-aircraft armament was considerably strengthened to allow them to be used as air defense ships in the port of Gotenhafen.Schleswig-Holstein was attacked byRAF bombers in December 1944, and although she was sunk in shallow water, her weapons could still be used. After a fire permanently disabled the ship, her crew was sent ashore to assist in the defense ofMarienburg.[54]Schlesien provided fire support for German troops in the vicinity of Gotenhafen between 15 and 21 March 1945.[55] In April,Schlesien was moved toSwinemünde to restock her ammunition supply as well as evacuate 1,000 wounded soldiers from the front. On 3 May she struck a mine outside Swinemünde; the following day she was scuttled by her crew in shallow water. Both ships were broken upin situ after the war.[56]
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