SMS Von der Tann
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SMS was the first
battlecruiser The battlecruiser (also written as battle cruiser or battle-cruiser) was a type of capital ship of the first half of the 20th century. These were similar in displacement, armament and cost to battleships, but differed in form and balance of attr ...
built for the German Kaiserliche Marine, as well as Germany's first major
turbine A turbine ( or ) (from the Greek , ''tyrbē'', or Latin ''turbo'', meaning vortex) is a rotary mechanical device that extracts energy from a fluid flow and converts it into useful work. The work produced by a turbine can be used for generating e ...
-powered warship. At the time of her construction, was the fastest dreadnought-type warship afloat, capable of reaching speeds in excess of . She was designed in response to the British . While the German design had slightly lighter guns—28 cm (11 in), compared to the 30.5 cm (12 in)
Mark X Mark X or mark 10 often refers to the tenth version of a product, frequently military hardware. "Mark", meaning "model" or "variant", can be abbreviated "Mk." Mark X or mark 10 can specifically refer to: In technology In military and weapon ...
mounted on the British ships— was faster and significantly better-armored. She set the precedent of German battlecruisers carrying much heavier armor than their British equivalents, albeit at the cost of smaller guns. participated in a number of fleet actions during the First World War, including several bombardments of the English coast. She was present at the
Battle of Jutland The Battle of Jutland (german: Skagerrakschlacht, the Battle of the Skagerrak) was a naval battle fought between Britain's Royal Navy Grand Fleet, under Admiral John Jellicoe, 1st Earl Jellicoe, Sir John Jellicoe, and the Imperial German Navy ...
, where she destroyed the British battlecruiser in the opening minutes of the engagement. was hit several times by large-caliber shells during the battle, and at one point in the engagement, the ship had all of her main battery guns out of action either due to damage or malfunction. Nevertheless, the damage was quickly repaired and the ship returned to the fleet in two months. Following the end of the war in November 1918, , along with most of the High Seas Fleet, was interned at
Scapa Flow Scapa Flow viewed from its eastern end in June 2009 Scapa Flow (; ) is a body of water in the Orkney Islands, Scotland, sheltered by the islands of Mainland, Graemsay, Burray,S. C. George, ''Jutland to Junkyard'', 1973. South Ronaldsay and ...
pending a decision by the Allies as to the fate of the fleet. The ship met her end in 1919 when German caretaker crews scuttled their ships to prevent their division among Allied navies. The wreck was raised in 1930, and scrapped at Rosyth from 1931 to 1934.


Development

The preceding German large cruiser design of the 1906 budget year, , was an incremental increase over previous armored cruisers. was armed with twelve guns, but the advent of the British , which were armed with a main battery of eight guns, outclassed the latest armored cruiser in terms of firepower. As a result, the large cruiser for 1907 would need to be an entirely new design to counter the British ships. Work on the new ship—referred to as "Cruiser F"—began in August 1906; the basic requirements for the ship was an armament of eight guns with a
secondary battery A rechargeable battery, storage battery, or secondary cell (formally a type of energy accumulator), is a type of electrical battery which can be charged, discharged into a load, and recharged many times, as opposed to a disposable or prima ...
of eight guns, along with a minimum speed of . Among the preliminary designs were options that carried the secondary guns either in four twin-
gun turret A gun turret (or simply turret) is a mounting platform from which weapons can be fired that affords protection, visibility and ability to turn and aim. A modern gun turret is generally a rotatable weapon mount that houses the crew or mechani ...
s or in
casemate A casemate is a fortified gun emplacement or armored structure from which artillery, guns are fired, in a fortification, warship, or armoured fighting vehicle.Webster's New Collegiate Dictionary When referring to Ancient history, antiquity, th ...
s in a central battery. The Construction Office, under the Naval Constructor von Eickstedt, submitted a competing proposal for a ship with six 28 cm guns and a secondary battery of guns. Senior officers disagreed over the intended role of the new ship; the State Secretary of the (RMA—Imperial Naval Office), Admiral Alfred von Tirpitz, envisioned the new ship as a replication of the British ''Invincible''s, mounting heavier guns, lighter armor, and higher speed with the intention of using the ship as a fleet scout and to destroy the opposing fleet's cruisers. Tirpitz had no intention of using the ship in the main
battle line The line of battle is a tactic in naval warfare in which a fleet of ships forms a line end to end. The first example of its use as a tactic is disputed—it has been variously claimed for dates ranging from 1502 to 1652. Line-of-battle tacti ...
.
Kaiser Wilhelm II Wilhelm II (Friedrich Wilhelm Viktor Albert; 27 January 18594 June 1941) was the last German Emperor (german: Kaiser) and List of monarchs of Prussia, King of Prussia, reigning from 15 June 1888 until Abdication of Wilhelm II, his abdication on 9 ...
however, along with most of the RMA, was in favor of incorporating the ship into the battle line after initial contact was made, which necessitated much heavier armor. The insistence upon the capability to fight in the battle line was a result of the numerical inferiority of the German High Seas fleet to the British
Royal Navy The Royal Navy (RN) is the United Kingdom's naval warfare force. Although warships were used by English and Scottish kings from the early medieval period, the first major maritime engagements were fought in the Hundred Years' War against F ...
. Initial proposals suggested a main battery of guns, but financial limitations necessitated the use of smaller, less expensive weaponry. The same 28 cm twin-gun turrets that had been developed for the last two s would be used for "Cruiser F". At a conference in September 1906, many of the disagreements over the ship's design were resolved. Eickstedt, argued that since the explosive trials for the proposed protection systems for the new battlecruiser had not been completed, the construction should be postponed to allow for any alterations to the design. He also argued that guns of 21 cm or caliber would be sufficient to penetrate the armor of the new British battlecruisers. However, Admiral
August von Heeringen August von Heeringen (26 November 1855 – 29 September 1927) was a Prussian admiral of the German Empire. He headed the Imperial Navy News Office (Nachrichtenbureau des Reichsmarineamts) and served as the Chief of the German Naval General Staff ...
, of the General Navy Department, stated that for the ship to be able to engage battleships, the 28 cm guns were necessary. Admiral Eduard von Capelle, the deputy director of the RMA, stated that depending on tests of the underwater protection system slated to be carried out in November, the main battery might have to be reduced in caliber to offset the weight of any improvements to the protection system that might need to be made. Tirpitz rejected the idea of a reduction in caliber, even if it required increasing displacement over the agreed-upon . By the end of September, the design staff had submitted three basic arrangements to the Kaiser: "1a", with two twin turrets and four single turrets; "2a", with four twin turrets; and "5a", with three twin turrets and two single mounts. All three variants mounted their secondary guns in a casemate battery. The Kaiser approved "2a", which the design staff continued to refine, producing "2b" by moving the wing turrets to an ''en echelon'' arrangement that provided a theoretical
broadside Broadside or broadsides may refer to: Naval * Broadside (naval), terminology for the side of a ship, the battery of cannon on one side of a warship, or their near simultaneous fire on naval warfare Printing and literature * Broadside (comic ...
of all eight guns (though severe blast effects prevented this in practice). The decision was made to switch from
triple-expansion steam engine A compound steam engine unit is a type of steam engine where steam is expanded in two or more stages. A typical arrangement for a compound engine is that the steam is first expanded in a high-pressure ''(HP)'' cylinder, then having given up he ...
s to
steam turbine A steam turbine is a machine that extracts thermal energy from pressurized steam and uses it to do mechanical work on a rotating output shaft. Its modern manifestation was invented by Charles Parsons in 1884. Fabrication of a modern steam turbin ...
s for the propulsion system, which would increase speed to ; this produced the "2a1" variant; improvements to the protection scheme and increases to the designed
horsepower Horsepower (hp) is a unit of measurement of power, or the rate at which work is done, usually in reference to the output of engines or motors. There are many different standards and types of horsepower. Two common definitions used today are the ...
resulted in the final version, "2c1". On 22 June 1907, the Kaiser authorized construction of "Cruiser F", to be named , after
Ludwig Freiherr von und zu der Tann-Rathsamhausen Ludwig Samson Heinrich Arthur Freiherr von und zu der Tann-Rathsamhausen (18 June 181526 April 1881) was a Bavarian general. Early life Born in Darmstadt, on the day of Waterloo, Ludwig was a descendant from the old family of von der Tann, whic ...
, a Bavarian general who fought in the Franco-Prussian War of 1870. The contract was awarded to the
Blohm & Voss Blohm+Voss (B+V), also written historically as Blohm & Voss, Blohm und Voß etc., is a German shipbuilding and engineering company. Founded in Hamburg in 1877 to specialise in steel-hulled ships, its most famous product was the World War II battle ...
shipyard in
Hamburg (male), (female) en, Hamburger(s), Hamburgian(s) , timezone1 = Central (CET) , utc_offset1 = +1 , timezone1_DST = Central (CEST) , utc_offset1_DST = +2 , postal ...
on 26 September 1907. The ship cost 36.523 million Marks, an increase of thirty-three percent over and a doubling of the price of the previous armored cruiser . The significant increases in price caused major problems for the German fleet, as the Naval Laws that governed the construction program assumed that prices would remain fairly stable over time.


Design


General characteristics

was
long at the waterline A vessel's length at the waterline (abbreviated to L.W.L)Note: originally Load Waterline Length is the length of a ship or boat at the level where it sits in the water (the ''waterline''). The LWL will be shorter than the length of the boat over ...
and
long overall __NOTOC__ Length overall (LOA, o/a, o.a. or oa) is the maximum length of a vessel's hull measured parallel to the waterline. This length is important while docking the ship. It is the most commonly used way of expressing the size of a ship, and ...
. She had a
beam Beam may refer to: Streams of particles or energy *Light beam, or beam of light, a directional projection of light energy **Laser beam *Particle beam, a stream of charged or neutral particles **Charged particle beam, a spatially localized grou ...
of , which was increased to with the installation of anti-torpedo nets. Her draft measured forward and aft. She displaced as designed and up to at full load. Her
hull Hull may refer to: Structures * Chassis, of an armored fighting vehicle * Fuselage, of an aircraft * Hull (botany), the outer covering of seeds * Hull (watercraft), the body or frame of a ship * Submarine hull Mathematics * Affine hull, in affi ...
was constructed with transverse and longitudinal steel frames and was divided into fifteen watertight compartments, with a
double bottom A double hull is a ship Hull (watercraft), hull design and construction method where the bottom and sides of the ship have two complete layers of watertight hull surface: one outer layer forming the normal hull of the ship, and a second inner hull ...
that ran for 75 percent of the length of the hull. The ship was a good
sea boat The sea, connected as the world ocean or simply the ocean, is the body of salty water that covers approximately 71% of the Earth's surface. The word sea is also used to denote second-order sections of the sea, such as the Mediterranean Sea, ...
with gentle motion, though she had a slight
weather helm Weather helm is the tendency of sailing vessels to turn towards the source of wind, creating an unbalanced helm that requires pulling the tiller to windward (i.e. 'to weather') in order to counteract the effect. Weather helm is the opposite of le ...
. She was difficult to control while steaming in reverse. With the rudder hard over, she lost up to sixty percent speed and heeled up to eight degrees. Frahm anti-roll tanks were fitted during construction, but these proved to be ineffective and they only reduced rolling by 33%.
Bilge keel A bilge keel is a nautical device used to reduce a ship's tendency to roll. Bilge keels are employed in pairs (one for each side of the ship). A ship may have more than one bilge keel per side, but this is rare. Bilge keels increase hydrodynamic re ...
s were later added to improve stability, and the space previously used for the anti-roll tanks was instead used as extra fuel storage. The ship was able to carry an additional 180 t (200
short ton The short ton (symbol tn) is a measurement unit equal to . It is commonly used in the United States, where it is known simply as a ton, although the term is ambiguous, the single word being variously used for short, long, and metric ton. The vari ...
s) of coal in the anti-roll tanks. The ship's crew compartments were arranged such that the officers were accommodated in the
forecastle The forecastle ( ; contracted as fo'c'sle or fo'c's'le) is the upper deck of a sailing ship forward of the foremast, or, historically, the forward part of a ship with the sailors' living quarters. Related to the latter meaning is the phrase " be ...
. This arrangement was found to be unsatisfactory, and not repeated in later classes. was designed to be fitted with a
lattice mast Lattice masts, or cage masts, or basket masts, are a type of observation mast common on United States Navy major warships in the early 20th century. They are a type of hyperboloid structure, whose weight-saving design was invented by the Russian ...
, but the ship was completed with standard pole masts instead. In 1914, spotting posts were attached to the masts in order to observe the fall of artillery fire. In 1915,
seaplane A seaplane is a powered fixed-wing aircraft capable of takeoff, taking off and water landing, landing (alighting) on water.Gunston, "The Cambridge Aerospace Dictionary", 2009. Seaplanes are usually divided into two categories based on their tec ...
trials were conducted on , and a crane was attached on the aft deck to lift the seaplane aboard the ship. had originally been equipped with anti-torpedo nets, but these were removed towards the end of 1916.


Machinery

was the first large German warship to use steam turbines. Her propulsion system consisted of four steam turbines arranged in two sets: high pressure turbines, which ran the outer two shafts, and low pressure turbines, which powered the inner two shafts. Each shaft drove a 3-bladed
screw propeller A propeller (colloquially often called a screw if on a ship or an airscrew if on an aircraft) is a device with a rotating hub and radiating blades that are set at a pitch to form a helical spiral which, when rotated, exerts linear thrust upon ...
that was in diameter. The turbines were divided into three engine rooms. Steam for the turbines was provided by eighteen coal-fired double-ended
water-tube boiler A high pressure watertube boiler (also spelled water-tube and water tube) is a type of boiler in which water circulates in tubes heated externally by the fire. Fuel is burned inside the furnace, creating hot gas which boils water in the steam-gene ...
s that were split into five boiler rooms. The boilers were ducted into two widely spaced
funnels A funnel is a tube or pipe that is wide at the top and narrow at the bottom, used for guiding liquid or powder into a small opening. Funnels are usually made of stainless steel, aluminium, glass, or plastic. The material used in its construc ...
, one just aft of the fore mast and the other
amidships This glossary of nautical terms is an alphabetical listing of terms and expressions connected with ships, shipping, seamanship and navigation on water (mostly though not necessarily on the sea). Some remain current, while many date from the 17th t ...
. Her engines were rated at for a top speed of , though on sea trials she significantly exceeded both figures, reaching for . In one instance during a cruise from
Tenerife Tenerife (; ; formerly spelled ''Teneriffe'') is the largest and most populous island of the Canary Islands. It is home to 43% of the total population of the archipelago. With a land area of and a population of 978,100 inhabitants as of Janu ...
to Germany, the ship averaged for an extended period, and reached a maximum speed of . At the time of her launch, she was the fastest dreadnought-type warship afloat. She had a designed coal storage capacity of but at full load, could carry up to . This enabled a cruising radius of at . s electrical plant consisted of six
turbo generator A turbo generator is an electric generator connected to the shaft of a steam turbine or gas turbine for the generation of electric power. Large steam-powered turbo generators provide the majority of the world's electricity and are also used b ...
s that had a total output of at 225 
volt The volt (symbol: V) is the unit of electric potential, electric potential difference (voltage), and electromotive force in the International System of Units (SI). It is named after the Italian physicist Alessandro Volta (1745–1827). Defi ...
s. Like many German capital ships, had chronic problems with the often low-quality coal available for the ship's boilers. Following the end of the raid on Scarborough, s commander, Captain Max von Hahn, remarked that "the inadequacy of our coal and its burning properties results in heavy smoke clouds and signals our presence." During the battle of Jutland, the ship was unable to maintain fires in all of her boilers after 16:00, due to the poor quality coal. Many other German ships suffered the same difficulties during the battle, including and . After 1916, the coal firing in the boilers was supplemented by spraying tar-oil on the coal, which improved the combustion rate.


Armament

carried eight SK L/45 guns, mounted in four twin-gun turrets: one fore, one aft, and two staggered wing turrets. The guns were emplaced in the Drh.L C/1907 turntable mount, which was traversed electrically, while the guns themselves used hydraulics to change elevation. The guns could be elevated up to 20 degrees, which enabled a maximum range of 18,900 m (20,700 yd). A refit in 1915 increased this to 20,400 m (22,300 yd). The main guns fired a 302 kg (670 lb) armor-piercing shell that had a
muzzle velocity Muzzle velocity is the speed of a projectile (bullet, pellet, slug, ball/shots or shell) with respect to the muzzle at the moment it leaves the end of a gun's barrel (i.e. the muzzle). Firearm muzzle velocities range from approximately to i ...
of 875 m/s; the main
propellant A propellant (or propellent) is a mass that is expelled or expanded in such a way as to create a thrust or other motive force in accordance with Newton's third law of motion, and "propel" a vehicle, projectile, or fluid payload. In vehicles, the e ...
charges were encased in a brass cartridge. A total of 660 projectiles were stored in four shell rooms, each containing 165 shells. The wing turrets were staggered in such a way that all eight guns were able to fire on broadside on a very wide arc. Unlike her British contemporaries, also carried a heavy secondary battery, consisting of ten SK L/45 guns, casemated in MPL C/06 pivot mounts, each with 150
high explosive An explosive (or explosive material) is a reactive substance that contains a great amount of potential energy that can produce an explosion if released suddenly, usually accompanied by the production of light, heat, sound, and pressure. An exp ...
and
armor-piercing Armour-piercing ammunition (AP) is a type of projectile designed to penetrate either body armour or vehicle armour. From the 1860s to 1950s, a major application of armour-piercing projectiles was to defeat the thick armour carried on many warsh ...
shells. At construction, these guns could fire their 45.3 kg (100 lb) shells at targets up to 13,500 m (14,800 yd) away; after the 1915 refit, their maximum range was extended to 16,800 m (18,400 yd). She was also armed with sixteen SK L/45 guns, to defend against torpedo boats and
destroyer In naval terminology, a destroyer is a fast, manoeuvrable, long-endurance warship intended to escort larger vessels in a fleet, convoy or battle group and defend them against powerful short range attackers. They were originally developed in ...
s. These were also emplaced in pivot mounts, of the MPL C/01-06 type, with a total of 3,200 shells for these guns. These guns fired a 9 kg (20 lb) shell at the high rate of 15 rounds per minute, up to a range of 10,694 m (11,695 yd), which was quite long for a smaller caliber weapon. In late 1916, following repair work after the damage sustained during the Battle of Jutland, had her 8.8 cm (3.5 in) guns removed and the firing ports welded shut. Two 8.8 cm flak guns were installed on the aft superstructure. As was customary for capital ships of the time, was equipped with four
torpedo tube A torpedo tube is a cylindrical device for launching torpedoes. There are two main types of torpedo tube: underwater tubes fitted to submarines and some surface ships, and deck-mounted units (also referred to as torpedo launchers) installed aboa ...
s, with a total of eleven torpedoes. These were located in the bow, the stern, and two on the broadside. The torpedoes carried a 110 kg (240 lb) warhead, and had an effective range of 2 km (1.04 nmi) when set for a speed of 32 kn (59 km/h), and 1.5 km (0.81 nmi) at 36 kn (67 km/h).


Armor

Because the was designed to fight in the battle line, her armor was much thicker than that of the British battlecruisers. weighed over 2,000 tons more than the , and used 10% more of her weight for armor than the battlecruisers she faced at the
Battle of Jutland The Battle of Jutland (german: Skagerrakschlacht, the Battle of the Skagerrak) was a naval battle fought between Britain's Royal Navy Grand Fleet, under Admiral John Jellicoe, 1st Earl Jellicoe, Sir John Jellicoe, and the Imperial German Navy ...
. s armor consisted of
Krupp The Krupp family (see pronunciation), a prominent 400-year-old German dynasty from Essen, is notable for its production of steel, artillery, ammunition and other armaments. The family business, known as Friedrich Krupp AG (Friedrich Krup ...
cemented and nickel steel. The main belt armor was 80–120 mm  (3.1–4.7 in) thick forward, 250 mm (9.8 in) thick over the ship's
citadel A citadel is the core fortified area of a town or city. It may be a castle, fortress, or fortified center. The term is a diminutive of "city", meaning "little city", because it is a smaller part of the city of which it is the defensive core. In ...
, and was 100 mm (3.9 in) thick aft. The forward
conning tower A conning tower is a raised platform on a ship or submarine, often armored, from which an officer in charge can conn the vessel, controlling movements of the ship by giving orders to those responsible for the ship's engine, rudder, lines, and gro ...
was protected by 250 mm (9.8 in), while the aft conning tower by 200 mm (7.9 in). The four turrets had 230 mm (9.1 in) faces, 180 mm (7.1 in) sides, and 90 mm (3.5 in) on the roofs. The horizontal armor measured 25 mm (0.98 in) thick, and the sloping deck armor was 50 mm (2 in) thick. Like the armored cruiser before her, she was protected by a torpedo bulkhead, 25 mm (0.98 in) thick. It was set back a distance of 4 meters (13 ft) from the outer hull skin, the space in between being used to store coal.


Service history

The
keel The keel is the bottom-most longitudinal structural element on a vessel. On some sailboats, it may have a hydrodynamic and counterbalancing purpose, as well. As the laying down of the keel is the initial step in the construction of a ship, in Br ...
for was
laid down Laying the keel or laying down is the formal recognition of the start of a ship's construction. It is often marked with a ceremony attended by dignitaries from the shipbuilding company and the ultimate owners of the ship. Keel laying is one o ...
on 21 March 1908, and the ship was launched nearly a year later on 20 March 1909. General Luitpold Freiherr von und zu der Tann-Rathsamhausen, a nephew of the ship's namesake and then the commander of
III Royal Bavarian Corps The III Royal Bavarian Army Corps / III Bavarian AK (german: III. Königlich Bayerisches Armee-Korps) was a corps level command of the Royal Bavarian Army, part of the German Army, before and during World War I. As the German and Bavarian Armies ...
, christened the ship at the launching ceremony. In May 1910, sailed from the Blohm & Voss shipyard in Hamburg to receive her final fitting-out in the (Imperial Dockyard) at
Kiel Kiel () is the capital and most populous city in the northern Germany, German state of Schleswig-Holstein, with a population of 246,243 (2021). Kiel lies approximately north of Hamburg. Due to its geographic location in the southeast of the J ...
. The German Navy was chronically short of crews at the time, so dockyard workers had to bring the ship to Kiel. On 1 September 1910, the ship was commissioned into the German Navy, with a crew composed largely of men from the dreadnought . Her first commander was (''KzS''–Captain at Sea) Robert Mischke. During sea trials, she reached an average speed of 27 kn (50  km/h) over a six-hour period, with a top speed of with the engines at maximum output. was sent to South America after completing her trials, departing Germany on 20 February 1911. She stopped in the
Canary Islands The Canary Islands (; es, Canarias, ), also known informally as the Canaries, are a Spanish autonomous community and archipelago in the Atlantic Ocean, in Macaronesia. At their closest point to the African mainland, they are west of Morocc ...
on the way. She visited
Rio de Janeiro Rio de Janeiro ( , , ; literally 'River of January'), or simply Rio, is the capital of the state of the same name, Brazil's third-most populous state, and the second-most populous city in Brazil, after São Paulo. Listed by the GaWC as a b ...
, Brazil, arriving there on 14 March, where she was visited by the Brazilian president,
Hermes da Fonseca Hermes Rodrigues da Fonseca (; 12 May 1855 – 9 September 1923) was a Brazilian field marshal and politician who served as the eighth President of Brazil between 1910 and 1914. He was a nephew of marshal Deodoro da Fonseca, the first president ...
, before continuing on to Itajaha on 23 March. During this period, she cruised with the German light cruiser , which was in the area. From there, she continued to
Bahía Blanca Bahía Blanca (; English: White Bay) is a city in the southwest of the provinces of Argentina, province of Buenos Aires Province, Buenos Aires, Argentina, by the Atlantic Ocean, and is the seat of government of the Bahía Blanca Partido. It had 3 ...
, Argentina on 27 March, where many of her crew went ashore to visit the city. She stayed there until 8 April when she left for
Bahia Bahia ( , , ; meaning "bay") is one of the 26 Federative units of Brazil, states of Brazil, located in the Northeast Region, Brazil, Northeast Region of the country. It is the fourth-largest Brazilian state by population (after São Paulo (sta ...
, Brazil, which she reached six days later. From there, Mischke and his staff made a visit to
Buenos Aires Buenos Aires ( or ; ), officially the Autonomous City of Buenos Aires ( es, link=no, Ciudad Autónoma de Buenos Aires), is the capital and primate city of Argentina. The city is located on the western shore of the Río de la Plata, on South ...
on 30 March. On 17 April, she departed for home, arriving back in Wilhelmshaven on 6 May. The primary purpose of the cruise was to obtain armament contracts from South American countries by impressing them with what was "widely advertised as the fastest and most powerful warship then afloat." Two days after arriving in port, joined I Scouting Group. In June, she steamed to
Vlissingen Vlissingen (; zea, label=Zeelandic, Vlissienge), historically known in English as Flushing, is a Municipalities of the Netherlands, municipality and a city in the southwestern Netherlands on the former island of Walcheren. With its strategic l ...
in the Netherlands, where she embarked Crown Prince Wilhelm and his wife Cecilie to take them to attend the coronation of King
George V of the United Kingdom George V (George Frederick Ernest Albert; 3 June 1865 – 20 January 1936) was King of the United Kingdom and the British Dominions, and Emperor of India, from 6 May 1910 until his death in 1936. Born during the reign of his grandmother Que ...
. The ceremonies included a Fleet Review at
Spithead Spithead is an area of the Solent and a roadstead off Gilkicker Point in Hampshire, England. It is protected from all winds except those from the southeast. It receives its name from the Spit, a sandbank stretching south from the Hampshire ...
that lasted from 20 to 29 June, where represented Germany. The battlecruiser then carried the Crown Prince and Princess back to Germany. She returned to operations with the fleet in August, and on 29 September, she became the
flagship A flagship is a vessel used by the commanding officer of a group of naval ships, characteristically a flag officer entitled by custom to fly a distinguishing flag. Used more loosely, it is the lead ship in a fleet of vessels, typically the fi ...
of I Scouting Group, replacing in that role. The unit was at that time commanded by (Vice Admiral) Gustav Bachmann. In July 1912, while was undergoing an engine overhaul, the new battlecruiser replaced as flagship. ''KzS''
Max Hahn Max or MAX may refer to: Animals * Max (dog) (1983–2013), at one time purported to be the world's oldest living dog * Max (English Springer Spaniel), the first pet dog to win the PDSA Order of Merit (animal equivalent of OBE) * Max (gorilla) (1 ...
replaced Mischke as the ship's captain in September. She briefly served as the flagship of the deputy commander, (Rear Admiral)
Franz von Hipper Franz Ritter von Hipper (13 September 1863 – 25 May 1932) was an admiral in the German Imperial Navy (''Kaiserliche Marine''). Franz von Hipper joined the German Navy in 1881 as an officer cadet. He commanded several torpedo boat units an ...
, from 21 to 26 September. On 1 October, became the flagship of the 3rd Admiral of Reconnaissance Forces, ''KAdm''
Felix Funke Felix Funke (3 January 1865 – 22 July 1932) was a German admiral of the Kaiserliche Marine (Imperial German Navy). Early life Funke was born in Hirschberg (Jelenia Góra), Prussian Silesia. His father Adolf Funke, originally from Magdebu ...
; on 1 March 1914, Funke was transferred to command III Battle Squadron and he was replaced by ''KzS''
Arthur Tapken Arthur is a common male given name of Brythonic origin. Its popularity derives from it being the name of the legendary hero King Arthur. The etymology is disputed. It may derive from the Celtic ''Artos'' meaning “Bear”. Another theory, more wi ...
, who was soon promoted to on the 22nd.


First World War


1914

Following the outbreak of the
First World War World War I (28 July 1914 11 November 1918), often abbreviated as WWI, was one of the deadliest global conflicts in history. Belligerents included much of Europe, the Russian Empire, the United States, and the Ottoman Empire, with fightin ...
in July 1914, s first major sortie occurred when the ship took part in the unsuccessful search for British battlecruisers, after the Battle of Heligoland Bight, in August 1914. During the action, had been stationed in Wilhelmshaven Roads, and had been ordered to raise steam as early as 08:20, to assist the German cruisers under attack in the Heligoland Bight. At 08:50, Rear Admiral Hipper requested permission from Admiral von Ingenohl, the commander in chief of the High Seas Fleet, to send and to relieve the beleaguered German cruisers. was ready to sail by 10:15, more than an hour before the British battlecruisers arrived on the scene. However, the ship was held up by low tide, which prevented the battlecruisers from crossing the
bar Bar or BAR may refer to: Food and drink * Bar (establishment), selling alcoholic beverages * Candy bar * Chocolate bar Science and technology * Bar (river morphology), a deposit of sediment * Bar (tropical cyclone), a layer of cloud * Bar (u ...
at the mouth of the
Jade Estuary The Jade Bight (or ''Jade Bay''; german: Jadebusen) is a bight or bay on the North Sea coast of Germany. It was formerly known simply as ''Jade'' or ''Jahde''. Because of the very low input of freshwater, it is classified as a bay rather than an ...
. At 14:10, and were able to cross the Jade bar, and Hipper ordered the German light cruisers to fall back on the two heavy ships, while Hipper himself was about an hour behind in the battlecruiser . At 14:25, the remaining light cruisers, , , , , and , rendezvoused with the battlecruisers. arrived on the scene by 15:10; succumbed to battle damage and sank. Hipper ventured forth cautiously to search for the two missing light cruisers, and . By 16:00, the German flotilla began returning to the Jade Estuary, arriving at approximately 20:23. Later that year was present at the
Raid on Yarmouth The Raid on Yarmouth, on 3 November 1914, was an attack by the Imperial German Navy on the British North Sea port and town of Great Yarmouth. German shells only landed on the beach causing little damage to the town, after German ships laying m ...
, on 2–3 November. At 16:30 on the 2nd, , along with (Hipper's flagship), , the armored cruiser , and the four light cruisers , , , and , departed the Jade Estuary, bound for the English coast with the intent to lay minefields in British sea lanes. At 18:00, two dreadnought battle squadrons of the High Seas Fleet departed to provide support. Hipper's force veered north in an arc to avoid
Heligoland Heligoland (; german: Helgoland, ; Heligolandic Frisian: , , Mooring Frisian: , da, Helgoland) is a small archipelago in the North Sea. A part of the German state of Schleswig-Holstein since 1890, the islands were historically possessions ...
and the British submarines stationed there, and then increased speed to 18 knots. At approximately 06:30 the following morning, Hipper's battlecruisers spotted the British minesweeper and opened fire, which drew the attention of the destroyer . Hipper realized that he was wasting time, and that further pursuit would run his ships into a known minefield, so he ordered his ships back to sea. As the flotilla was turning away, the battlecruisers fired several salvos at Great Yarmouth, to little effect. By the time the British Admiralty was fully aware of the situation, the German force had retreated back to home waters. also participated in the raid on Scarborough, Hartlepool and Whitby, on 15–16 December. The raid was another attempt to lure out a portion of the Grand Fleet and destroy it, with the whole of the High Seas Fleet standing by in support. delayed the raid itself by several days, because Admiral Ingenohl was unwilling to send forth I Scouting Group at anything less than full strength, and was undergoing routine repairs in early December. I Scouting Group, along with II Scouting Group, composed of the four light cruisers , , , and , and two torpedo boat flotillas, left the Jade at 03:20. Hipper's ships sailed north, through the channels in the minefields, past Heligoland to the Horns Reef light vessel, at which point the ships turned westward, towards the English coast. The main battle squadrons of the High Seas Fleet left in the late afternoon of the 15th. During the night of 15 December, the main body of the High Seas Fleet encountered British destroyers, and fearing the prospect of a night-time torpedo attack, Admiral Ingenohl ordered the ships to retreat. Upon nearing the British coast, Hipper's battlecruisers split into two groups. , , and went north to shell Hartlepool, while and went south to shell Scarborough and Whitby. The two ships destroyed the coast guard stations in both towns, along with the signalling station in Whitby. By 09:45 on the 16th, the two groups had reassembled, and began to retreat eastward. Hipper was unaware of Ingenohl's withdrawal, and following the bombardment of the target cities, turned back to rendezvous with the German fleet. By this time, David Beatty's battlecruisers were in position to block Hipper's chosen egress route, while other forces were en route to complete the encirclement. At 12:25, the light cruisers of II Scouting Group began to pass the British forces searching for Hipper. One of the cruisers in the 2nd Light Cruiser Squadron spotted , and signaled a report to Beatty. At 12:30, Beatty turned his battlecruisers towards the German ships. Beatty presumed that the German cruisers were the advance screen for Hipper's ships, however, those were some 50 km (31 mi) ahead. The 2nd Light Cruiser Squadron, which had been screening for Beatty's ships, detached to pursue the German cruisers, but a misinterpreted signal from the British battlecruisers sent them back to their screening positions. This confusion allowed the German light cruisers to escape, and alerted Hipper to the location of the British battlecruisers. The German battlecruisers wheeled to the northeast of the British forces and made good their escape.


1915–1916

was being refitted at the time of the Battle of Dogger Bank, and so she missed this action. She was replaced by the armored cruiser , which was sunk during the battle. A detachment of men from had been sent to and went down with the ship. In 1915 the ship took part in operations in the North and Baltic Seas. On 10 August 1915, shelled the island fortress at Utö, in the eastern Baltic, during which she took part in an artillery duel with the Russian armored cruiser . also engaged the Russian armored cruiser and five destroyers, during which was struck by a shell through the funnel, which caused no casualties. On 3–4 February 1916, participated in the fleet advance to welcome home the commerce raider . That month, ''KzS''
Hans Zenker Hans Zenker (10 August 1870 in Bielitz – 18 August 1932 in Göttingen) was a German admiral. Biography Born in Bielitz (now Bielsko-Biała, Poland), he entered the Imperial German Navy on 13 April 1889. After serving as captain of several torpe ...
replaced Hahn as s commander. The ship was also present during the fleet sorties of 5–7 March, 17 April, 21–22 April, and 5 May. also took part in the bombardment of Yarmouth and Lowestoft on 24–25 April. Hipper was away on sick leave, so the German ships were under the command of Konteradmiral
Friedrich Boedicker Friedrich Boedicker, (13 March 1866, in Kassel – 20 September 1944) was a '' Vizeadmiral'' (vice admiral) of the Kaiserliche Marine during the First World War. Biography Boedicker is perhaps best known for being present at the Battle of Jutla ...
. The German battlecruisers , , , and left the Jade Estuary at 10:55 on 24 April, and were supported by a screening force of 6 light cruisers and two torpedo boat flotillas. The heavy units of the High Seas Fleet sailed at 13:40, with the objective to provide distant support for Boedicker's ships. The British Admiralty was made aware of the German sortie through the interception of German
wireless Wireless communication (or just wireless, when the context allows) is the transfer of information between two or more points without the use of an electrical conductor, optical fiber or other continuous guided medium for the transfer. The most ...
signals, and deployed the Grand Fleet at 15:50. By 14:00, Boedicker's ships had reached a position off Norderney, at which point he turned his ships northward to avoid the Dutch observers on the island of
Terschelling Terschelling (; fry, Skylge; Terschelling dialect: ''Schylge'') is a municipality and an island in the northern Netherlands, one of the West Frisian Islands. It is situated between the islands of Vlieland and Ameland. Wadden Islanders are k ...
. At 15:38, struck a
mine Mine, mines, miners or mining may refer to: Extraction or digging * Miner, a person engaged in mining or digging *Mining, extraction of mineral resources from the ground through a mine Grammar *Mine, a first-person English possessive pronoun ...
, which tore a 50-ft (15-m) hole in her hull, just abaft of the starboard broadside torpedo tube, which allowed 1,400-t (1,500-short tons) of water to enter the ship. turned back, with the screen of light cruisers, at a speed of 15 knots. The four remaining battlecruisers turned south immediately in the direction of Norderney to avoid further mine damage. By 16:00, was clear of imminent danger, so the ship stopped to allow Boedicker to disembark. The torpedo boat brought Boedicker to . At 04:50 on 25 April, the German battlecruisers were approaching Lowestoft when the light cruisers and , which had been covering the southern flank, spotted the light cruisers and destroyers of Admiral Tyrwhitt's
Harwich Force The Harwich Force originally called Harwich Striking Force was a squadron of the Royal Navy, formed during the First World War and based in Harwich. It played a significant role in the war. History After the outbreak of the First World War, a p ...
. Boedicker refused to be distracted by the British ships, and instead trained his ships' guns on Lowestoft. The two 6 in (15 cm) shore batteries were destroyed, along with other damage to the town. Zenker later wrote: At 05:20, the German raiders turned north, towards Yarmouth, which they reached by 05:42. The visibility was so poor that the German ships fired one
salvo A salvo is the simultaneous discharge of artillery or firearms including the firing of guns either to hit a target or to perform a salute. As a tactic in warfare, the intent is to cripple an enemy in one blow and prevent them from fighting b ...
each, with the exception of , which fired fourteen rounds from her main battery. The German ships turned back south, and at 05:47, encountered for the second time the Harwich Force, which had by then been engaged by the six light cruisers of the screening force. Boedicker's ships opened fire from a range of 13,000 yd (12,000 m). Tyrwhitt immediately turned his ships around and fled south, but not before the cruiser sustained severe damage. Due to reports of British submarines and torpedo attacks, Boedicker broke off the chase, and turned back east towards the High Seas Fleet. At this point, Scheer, who had been warned of the Grand Fleet's sortie from Scapa Flow, turned back towards Germany.


Battle of Jutland

participated in the Battle of Jutland, as part of Hipper's First Scouting Group. was the rearmost of five battlecruisers in Hipper's line. Shortly before 16:00 
CET CET or cet may refer to: Places * Cet, Albania * Cet, standard astronomical abbreviation for the constellation Cetus * Colchester Town railway station (National Rail code CET), in Colchester, England Arts, entertainment, and media * Comcast Ente ...
, on 31 May 1916, Hipper's force encountered Beatty's battlecruiser squadron. The German ships were the first to open fire, at a range of approximately 15,000 yd (14,000 m). At 16:49, fired her first shot at . Fourteen minutes of firing later, had scored five hits on ''Indefatigable'' out of 52 heavy shells fired, one of which caused ''Indefatigable'' to explode and sink. An observer on the battlecruiser , which was directly ahead of ''Indefatigable'', later remarked that he saw "the ''Indefatigable'' hit by two shells from the , one on the fore turret. Both appeared to explode on impact. After an interval of thirty seconds, the ship blew up. Sheets of flame were followed by dense smoke which obscured her from view." Following the destruction of ''Indefatigable'', Beatty turned his force away, while the British 5th Battle Squadron closed in on the German battlecruisers, opening fire from approximately 19,000 yd (17,000 m). and , the two rearmost of Hipper's squadron, came under fire from the three lead British battleships of the 5th BS: , , and . The German battlecruisers began zig-zagging to avoid the gunfire from the British ships. At 17:09, six minutes after sinking ''Indefatigable'', was hit by one 15 in (38 cm) shell from ''Barham'', which struck beneath the waterline and dislodged a section of the belt armor, causing to take in 600 tons of water. This hit temporarily damaged the ship's steering gear, and combined with s zig-zagging cause her to fall out of line to port. The German Official History commented that "the greatest calamity of a complete breakdown of the steering gear was averted, otherwise, would have been delivered into the hands of the oncoming battleships as in the case of during the Dogger Bank action." At 17:20, a 13.5 in (34 cm) shell from the battlecruiser struck the barbette of s A turret. A chunk of armor plate was dislodged from inside the turret, and struck the turret training gear, which jammed the turret at 120 degrees. This put the turret out of action for the duration of the engagement. At 17:23, the ship was hit again by a 13.5 in (34 cm) shell from ''Tiger'', which struck near the C turret and killed 6 men. The shell holed the deck and created enough wreckage that the turret was unable to traverse, and the starboard rudder engine room was damaged. The C turret was out of action until the wreckage could be cut away. Smoke from a fire caused by burning practice targets that had been stowed below the turret obscured the ship. Sections of the torpedo nets were knocked loose and trailed behind the ship. However, they were cut loose before they could catch in the propellers. ''New Zealand'', which had been engaging following ''Indefatigable''s destruction, lost sight of her target and shifted fire to . At 17:18, the range to from ''Barham'' had closed to 17,500 yd (16,000 m), at which point ''Von der Tann'' opened fire on the British battleship. Shortly thereafter, at 17:23, registered a hit on ''Barham''. However, after firing only 24 shells, had to return to her earlier target, ''New Zealand'', because her fore and aft turrets had since been disabled, and her amidships turrets were no longer able to target ''Barham''. At 18:15, the guns of the last active turret jammed in their mountings, leaving without any working main armament. Regardless, she remained in the battle line to distract the British gunners. Because she was no longer firing her main guns, was able to maneuver in an erratic manner, such that she could avoid British gunfire. By 18:53, the ship's speed fell from 26 kn (48 km/h) to 23 kn (43 km/h). Over an hour and a half after having failed due to mechanical difficulties, D turret was repaired and again ready for action. sustained her fourth and final heavy shell hit at 20:19, when one 15 in (38 cm) shell from struck the aft conning tower. Shell splinters penetrated the conning tower, killing the Third Gunnery Officer and both rangefinder operators and wounding every other crewman in the tower. Shell fragments and other debris fell through the ventilating shaft and onto the condenser, which put out all the lights in the ship. Eleven minutes later, at 20:30, B turret was again clear for action, and by 21:00, C turret was also in working order. However, both of the amidships turrets suffered further mechanical difficulties that put them out of action later during the battle. At approximately 22:15, Hipper, with his flag now in , ordered his battlecruisers to increase speed to 20 knots, and to fall into the rear of the main German line. Neither , due to battle damage, nor , due to the dirtiness of her boiler fires, could steam at more than 18 knots. and took up positions astern of II Squadron, and were later joined by the old
pre-dreadnoughts Pre-dreadnought battleships were sea-going battleships built between the mid- to late- 1880s and 1905, before the launch of in 1906. The pre-dreadnought ships replaced the ironclad battleships of the 1870s and 1880s. Built from steel, prot ...
and at 00:05. At 03:37, the British destroyer ''Moresby'' fired a torpedo at the rear of the German line; this passed closely across s bow, and forced the ship to turn sharply to starboard to avoid being hit. Close to the end of the battle, at 03:55, Hipper transmitted a report to Admiral Scheer, informing him of the tremendous damage his ships had suffered. By that time, and each had only two guns in operation, was flooded with 1,000 tons of water, and was severely damaged. Hipper reported: "I Scouting Group was therefore no longer of any value for a serious engagement, and was consequently directed to return to harbor by the Commander-in-Chief, while he himself determined to await developments off Horns Reef with the battlefleet." During the course of the battle, two of s main turrets were knocked out by British gunfire, while her other two turrets suffered mechanical failures. The ship was firing so fast that several of the main guns in the amidships turrets became overheated and jammed in their recoil slides, and could not be returned to working order. was without her main battery for 11 hours, although three turrets were restored to working order before the end of the battle; D turret only after much cutting away of bent metal with
oxyacetylene torch Principle of burn cutting Oxy-fuel welding (commonly called oxyacetylene welding, oxy welding, or gas welding in the United States) and oxy-fuel cutting are processes that use fuel gases (or liquid fuels such as gasoline or petrol, diesel, ...
es—afterwards the guns could be worked only by hand. Her casualties amounted to 11 dead and 35 wounded. During the battle fired 170 heavy shells and 98 secondary caliber shells.


Later actions

After Jutland, she underwent repairs from 2 June until 29 July. After returning to the fleet, took part in several unsuccessful raids into the North Sea in 1916. During the first of these, conducted on 18–19 August, was one of two remaining German battlecruisers still in fighting condition (along with ), so three dreadnoughts were assigned to I Scouting Group for the operation: , , and . I Scouting Group was to bombard the coastal town of
Sunderland Sunderland () is a port city in Tyne and Wear, England. It is the City of Sunderland's administrative centre and in the Historic counties of England, historic county of County of Durham, Durham. The city is from Newcastle-upon-Tyne and is on t ...
, in an attempt to draw out and destroy Beatty's battlecruisers. Admiral Scheer and the rest of the High Seas Fleet, with fifteen dreadnoughts of its own, would trail behind, providing cover. The British were aware of the German plans, and sortied the Grand Fleet to meet them. By 14:35, Scheer had been warned of the Grand Fleet's approach and, unwilling to engage the whole of the Grand Fleet just eleven weeks after the decidedly close call at Jutland, turned his forces around and retreated to German ports. Further sorties were conducted on 25–26 September, 18–19 October, 23–24 October, as well as the advance on 23–24 March 1917; none of these resulted in action with British forces. ''KzS'' Konrad Mommsen relieved Zenker in April. served as the flagship of Rear Admiral
Ludwig von Reuter Hans Hermann Ludwig von Reuter (9 February 1869 – 18 December 1943) was a German admiral who commanded the High Seas Fleet when it was interned at Scapa Flow in the north of Scotland at the end of World War I. On 21 June 1919 he ordered ...
during the fleet advance to Norway on 23–25 April 1918, as well as in the sortie on 8–9 July.


Fate

was to have taken part in a final fleet action at the end of October 1918, days before the
Armistice An armistice is a formal agreement of warring parties to stop fighting. It is not necessarily the end of a war, as it may constitute only a cessation of hostilities while an attempt is made to negotiate a lasting peace. It is derived from the La ...
was to take effect. The bulk of the High Seas Fleet was to have sortied from their base in Wilhelmshaven to engage the British Grand Fleet; Scheer—by now the Grand Admiral () of the fleet—intended to inflict as much damage as possible on the British navy, in order to retain a better bargaining position for Germany, despite the expected casualties. However, many of the war-weary sailors felt the operation would disrupt the peace process and prolong the war. While the High Seas Fleet was consolidating in Wilhelmshaven, sailors began deserting en masse. As and passed through the locks that separated Wilhelmshaven's inner harbor and roadstead, some 300 men from both ships climbed over the side and disappeared ashore. On the morning of 29 October 1918, the order was given to sail from Wilhelmshaven the following day. Starting on the night of 29 October, sailors on and then on several other battleships
mutinied Mutiny is a revolt among a group of people (typically of a military, of a crew or of a crew of pirates) to oppose, change, or overthrow an organization to which they were previously loyal. The term is commonly used for a rebellion among members ...
. The unrest ultimately forced Hipper and Scheer to cancel the operation. Informed of the situation, the Kaiser stated "I no longer have a navy." Following the capitulation of Germany in November 1918, most of the High Seas Fleet, under Reuter's command, were interned in the British naval base in
Scapa Flow Scapa Flow viewed from its eastern end in June 2009 Scapa Flow (; ) is a body of water in the Orkney Islands, Scotland, sheltered by the islands of Mainland, Graemsay, Burray,S. C. George, ''Jutland to Junkyard'', 1973. South Ronaldsay and ...
. Prior to the departure of the German fleet, Admiral
Adolf von Trotha Adolf von Trotha (1 March 1868 – 11 October 1940) was a German admiral in the ''Kaiserliche Marine''. After the German revolution he briefly served as the first ''Chef der Admiralität'', which replaced the imperial ''Reichsmarineamt''. After ...
made clear to von Reuter that he could not allow the Allies to seize the ships, under any conditions. The fleet rendezvoused with the British light cruiser , which led the ships to the Allied fleet that was to escort the Germans to Scapa Flow. The massive flotilla consisted of some 370 British, American, and French warships. Once the ships were interned, their guns were disabled through the removal of their breech blocks, and their crews were reduced to 200 officers and enlisted men. was interned at Scapa Flow under the command of Wollante. While in Scapa Flow, a soldiers' council was formed aboard the ship; the council took complete, dictatorial control of the vessel for the duration of the interment. The fleet remained in captivity during the negotiations that ultimately produced the
Treaty of Versailles The Treaty of Versailles (french: Traité de Versailles; german: Versailler Vertrag, ) was the most important of the peace treaties of World War I. It ended the state of war between Germany and the Allied Powers. It was signed on 28 June ...
. Von Reuter believed that the British intended to seize the German ships on 21 June 1919, which was the deadline for Germany to have signed the peace treaty. Unaware that the deadline had been extended to the 23rd, Reuter ordered the ships to be sunk at the next opportunity. On the morning of 21 June, the British fleet left Scapa Flow to conduct training maneuvers, and at 11:20 Reuter transmitted the order to his ships. The ship sank in two hours and fifteen minutes. The task of raising was secured by
Ernest Cox Ernest Frank Guelph Cox (1883–1959) was an English engineer, with knowledge in electrical and mechanical engineering, which he notably deployed in marine salvage. Between 1924 and 1931 his Cox & Danks Shipbreaking Co. successfully raised 35 s ...
's salvage company. During preparation work, three workers were nearly killed when their oxy-acetylene cutters set off a major explosion. The blast tore holes in the still submerged vessel and allowed water into the compartment that had been emptied with compressed air; by the time the men were rescued, the compartment had refilled almost completely and the men were up to their necks. Nevertheless, the ship was successfully brought up on 7 December 1930, and scrapped at Rosyth by the
Alloa Shipbreaking Company Metal Industries, Limited was a conglomerate of mostly British engineering companies. It was founded in Glasgow in 1922 by Robert Watson McCrone. In 1953 its activities were described as "electrical and mechanical engineering manufacture and metal ...
beginning in 1931.


Footnotes


Notes


Citations


References

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Further reading

* * * * {{DEFAULTSORT:Von Der Tann Battlecruisers of the Imperial German Navy Ships built in Hamburg 1909 ships World War I battlecruisers of Germany World War I warships scuttled at Scapa Flow Maritime incidents in 1919