SMS Roon
Encyclopedia
SMS Roon"SMS" stands for "Seiner Majestät Schiff", or "His Majesty's Ship" in German. was the lead ship of her class
of armored cruiser
s of the Imperial German Navy
. The ship was authorized under the second Naval Law
in 1902, and built at the Imperial Dockyard
in Kiel
at the cost of 15.3 million marks
. The ship was named after Albrecht von Roon, a Prussian general and politician. She displaced up to 9875 tonnes (9,719 LT) and was armed with a main battery of four 21 cm (8.3 in) guns. Her top speed was 20.4 kn (11.1 m/s).
The ship participated in several actions during the First World War
, including the raid on Scarborough, Hartlepool and Whitby
, were she acted as a scout for the High Seas Fleet
. Roon also saw duty in the Baltic Sea
, including a battle in July 1915 against Russian cruisers and shore bombardment missions. After 1916, Roon was used as a training and barracks ship in Kiel
until the end of the war. It was intended to convert the ship into a seaplane tender
, but the plan was eventually abandoned. The ship was struck from the naval register in 1920 and scrapped thereafter.
in Kiel
under construction number 28. Her keel was laid in 1902 and she was launched on 27 June 1903. Fitting-out
work was lengthy, but was completed by 5 April 1906, being commissioned into the Imperial German Navy
the same day. She had cost the Imperial German Government 15,345,000 Goldmarks
.
Roon displaced 9087 t (8,943.5 LT) as built and 9875 t (9,719 LT) fully loaded, with a length of 126.5 m (415 ft), a beam of 19.6 m (64.3 ft) and a draft of 7.43 m (24.4 ft) forward. She was powered by three vertical triple expansion engines, which developed a total of 17272 ihp and yielded a maximum speed of 20.4 kn (11.1 m/s) on trials. She carried up to 1630 t (1,604.3 LT) of coal, which enabled a maximum range of up to 5080 nautical miles (9,408.2 km) at a cruising speed of 12 kn (6.5 m/s).
She was armed with four 21 cm (8.3 in) guns arranged in two twin gun turret
s, one on either end of the superstructure
. Her secondary armament consisted of ten 15 cm (5.9 in) guns, fourteen 8.8 cm (3.5 in) guns and four 45 cm (17.7 in) underwater torpedo tubes, one in the bow, one in the stern, and one on both beams.
, and launched in June 1903, during which the inspector general Alfred von Waldersee was made patron of the ship. The ship was completed in April 1906, at a cost of 15,345,000 Mark
s. In April 1907, Roon and the light cruiser sailed to the United States to participate in a ceremony commemorating the anniversary of the arrival of colonists in Chesapeake Bay
on 26 April. In addition to the German delegation, the international fleet consisted of warships from Great Britain, Japan, Austria-Hungary, France, Italy, and several other nations.
In 1908, Roon was serving as the flagship for Rear Admiral Jacobsen, in the Second Group of the Scouting Division of the High Seas Fleet
, along with her sistership Yorck
. After being replaced as the flagship of the Scouting Group on 30 September by the new battlecruiser
Moltke, Roon was decommissioned in 1911; however, she was recommissioned three years later at the outbreak of World War I
. At the start of hostilities, Roon was serving as the flagship
of the III Scouting Group. On 3 November 1914, she participated in the operation to bombard Yarmouth
.
. Along with the armored cruiser , Roon was assigned to the van
of the High Seas Fleet, which was providing distant cover to Rear Admiral Franz von Hipper's
battlecruisers while they were conducting the bombardment. During the operation, Roon and her attached destroyer
s encountered the British screening forces; at 06:16, Roon came in contact with and , but no gunfire was exchanged and the ships turned away. Following reports of British destroyers from Roon as well as from , Admiral von Ingenohl
ordered the High Seas Fleet to turn to port and head for Germany. At this point, Roon and her destroyers became the rearguard for the High Seas Fleet.
At 06:59, Roon, by this time joined by the light cruisers and Hamburg, encountered Commander Jones
' destroyers. Jones shadowed Roon until 07:40, at which point Stuttgart and Hamburg were detached to sink their pursuers. At 08:02, Roon signaled the two light cruisers and ordered them to abandon the pursuit and retreat along with the rest of the High Seas Fleet. At 07:55, Beatty
received word of Roons location, and in an attempt to intercept the German cruisers, detached to hunt the German ships down, while his other three battlecruisers followed from a distance. By 09:00, Beatty had become aware that the German battlecruisers were shelling Hartlepool, so he decided to break off the pursuit of Roon and turn towards the German battlecruisers.
decided that because Roon and the other armored cruisers of the III Scouting Group were slow and lacked thick enough armor, they were unsuitable for service in the North Sea. Therefore, after April 1915, she operated in the Baltic Sea
, participating in several bombardment missions. On 11 May, the British submarine spotted Roon and several other ships en route to Libau
, which had been recently captured by the German army. E9 fired five torpedoes at the German flotilla; two passed closely astern of Roon while the other three missed their targets as well.
On 2 July 1915, Roon participated in a battle with Russian cruisers off the shores of Gotland
, Sweden
. The light cruiser Augsburg and three destroyers were escorting the minelaying cruiser when they were attacked by four Russian cruisers—the armored cruisers Bayan
, Admiral Makarov, and light cruisers Bogatyr and Oleg. Augsburg escaped while the destroyers covered the retreat of the Albatross, which was severely damaged and forced to seek refuge in neutral Swedish waters. Roon and the light cruiser Lübeck sortied to relieve the beleaguered German destroyers. Upon arriving at the scene, Roon engaged Bayan, and Lübeck opened fire on Oleg. Shortly thereafter, the Russian cruiser Rurik, along with a destroyer, arrived to reinforce the Russian flotilla. In the following artillery duel, Roon was hit several times, and the German ships were forced to retreat.
On 10 August, Roon and shelled Russian positions at Zerel on the Sworbe Peninsula
. There were several Russian destroyers anchored off Zerel; the German cruisers caught them by surprise and damaged one of them.
as the flagship of the screening force for the main body of the High Seas Fleet. This mistake appeared in historical works published shortly after the First World War, but later works have corrected it.
In November 1916, Roon was disarmed and converted into a training and accommodation ship. Stationed at Kiel, she served in this capacity until 1918. The German Navy had previously experimented with seaplane carriers, including the conversion of the old light cruiser early in 1918 for service with the fleet. Stuttgart could carry only two aircraft, however, which was deemed insufficient for fleet support. As a result, plans were drawn up to convert Roon into a seaplane carrier, with a capacity for four aircraft. The ship's main battery would have been removed and replaced with only six 15 cm guns and six 8.8 cm anti-aircraft guns; the large hangar for the seaplanes was to have been installed aft of the main superstructure
The plan did not come to fruition, primarily because the German Navy relied on zeppelin
s for aerial reconnaissance, not seaplanes. Roon was struck from the naval register on 25 November 1920 and scrapped the following year, in Kiel-Nordmole.
Roon class armored cruiser
The Roon class was a pair of armored cruisers built for the German Imperial Navy after the turn of the 20th century. The class comprised and , which closely resembled the earlier Prinz Adalbert class ships, but incorporated slight incremental improvements. The ships were easily distinguished from...
of armored cruiser
Armored cruiser
The armored cruiser was a type of warship of the late 19th and early 20th centuries. Like other types of cruiser, the armored cruiser was a long-range, independent warship, capable of defeating any ship apart from a battleship, and fast enough to outrun any battleships it encountered.The first...
s of the Imperial German Navy
Kaiserliche Marine
The Imperial German Navy was the German Navy created at the time of the formation of the German Empire. It existed between 1871 and 1919, growing out of the small Prussian Navy and Norddeutsche Bundesmarine, which primarily had the mission of coastal defense. Kaiser Wilhelm II greatly expanded...
. The ship was authorized under the second Naval Law
Fleet Acts
The Naval Laws were five separate laws passed by the German Empire, in 1898, 1900, 1906, 1908, and 1912. These acts, championed by Kaiser Wilhelm II and his Secretary of State for the Navy, Grand Admiral Alfred von Tirpitz, committed Germany to building up a navy capable of competing with the Royal...
in 1902, and built at the Imperial Dockyard
Kaiserliche Werft Kiel
Kaiserliche Werft Kiel was a German shipbuilding company founded in 1867, first as Königliche Werft Kiel but renamed in 1871 with the proclamation of the German Empire...
in Kiel
Kiel
Kiel is the capital and most populous city in the northern German state of Schleswig-Holstein, with a population of 238,049 .Kiel is approximately north of Hamburg. Due to its geographic location in the north of Germany, the southeast of the Jutland peninsula, and the southwestern shore of the...
at the cost of 15.3 million marks
German gold mark
The Goldmark was the currency used in the German Empire from 1873 to 1914.-History:Before unification, the different German states issued a variety of different currencies, though most were linked to the Vereinsthaler, a silver coin containing 16⅔ grams of pure silver...
. The ship was named after Albrecht von Roon, a Prussian general and politician. She displaced up to 9875 tonnes (9,719 LT) and was armed with a main battery of four 21 cm (8.3 in) guns. Her top speed was 20.4 kn (11.1 m/s).
The ship participated in several actions during the First World War
World War I
World War I , which was predominantly called the World War or the Great War from its occurrence until 1939, and the First World War or World War I thereafter, was a major war centred in Europe that began on 28 July 1914 and lasted until 11 November 1918...
, including the raid on Scarborough, Hartlepool and Whitby
Raid on Scarborough, Hartlepool and Whitby
The raid on Scarborough, Hartlepool and Whitby, which took place on 16 December 1914, was an attack by the Imperial German Navy on the British seaport towns of Scarborough, Hartlepool, West Hartlepool, and Whitby. The attack resulted in 137 fatalities and 592 casualties, many of which were civilians...
, were she acted as a scout for the High Seas Fleet
High Seas Fleet
The High Seas Fleet was the battle fleet of the German Empire and saw action during World War I. The formation was created in February 1907, when the Home Fleet was renamed as the High Seas Fleet. Admiral Alfred von Tirpitz was the architect of the fleet; he envisioned a force powerful enough to...
. Roon also saw duty in the Baltic Sea
Baltic Sea
The Baltic Sea is a brackish mediterranean sea located in Northern Europe, from 53°N to 66°N latitude and from 20°E to 26°E longitude. It is bounded by the Scandinavian Peninsula, the mainland of Europe, and the Danish islands. It drains into the Kattegat by way of the Øresund, the Great Belt and...
, including a battle in July 1915 against Russian cruisers and shore bombardment missions. After 1916, Roon was used as a training and barracks ship in Kiel
Kiel
Kiel is the capital and most populous city in the northern German state of Schleswig-Holstein, with a population of 238,049 .Kiel is approximately north of Hamburg. Due to its geographic location in the north of Germany, the southeast of the Jutland peninsula, and the southwestern shore of the...
until the end of the war. It was intended to convert the ship into a seaplane tender
Seaplane tender
A seaplane tender is a ship that provides facilities for operating seaplanes. These ships were the first aircraft carriers and appeared just before the First World War.-History:...
, but the plan was eventually abandoned. The ship was struck from the naval register in 1920 and scrapped thereafter.
Construction
Roon was ordered under the provisional name Ersatz Kaiser and built at the Imperial DockyardKaiserliche Werft Kiel
Kaiserliche Werft Kiel was a German shipbuilding company founded in 1867, first as Königliche Werft Kiel but renamed in 1871 with the proclamation of the German Empire...
in Kiel
Kiel
Kiel is the capital and most populous city in the northern German state of Schleswig-Holstein, with a population of 238,049 .Kiel is approximately north of Hamburg. Due to its geographic location in the north of Germany, the southeast of the Jutland peninsula, and the southwestern shore of the...
under construction number 28. Her keel was laid in 1902 and she was launched on 27 June 1903. Fitting-out
Fitting-out
Fitting-out, or "outfitting”, is the process in modern shipbuilding that follows the float-out of a vessel and precedes sea trials. It is the period when all the remaining construction of the ship is completed and readied for delivery to her owners...
work was lengthy, but was completed by 5 April 1906, being commissioned into the Imperial German Navy
Kaiserliche Marine
The Imperial German Navy was the German Navy created at the time of the formation of the German Empire. It existed between 1871 and 1919, growing out of the small Prussian Navy and Norddeutsche Bundesmarine, which primarily had the mission of coastal defense. Kaiser Wilhelm II greatly expanded...
the same day. She had cost the Imperial German Government 15,345,000 Goldmarks
German gold mark
The Goldmark was the currency used in the German Empire from 1873 to 1914.-History:Before unification, the different German states issued a variety of different currencies, though most were linked to the Vereinsthaler, a silver coin containing 16⅔ grams of pure silver...
.
Roon displaced 9087 t (8,943.5 LT) as built and 9875 t (9,719 LT) fully loaded, with a length of 126.5 m (415 ft), a beam of 19.6 m (64.3 ft) and a draft of 7.43 m (24.4 ft) forward. She was powered by three vertical triple expansion engines, which developed a total of 17272 ihp and yielded a maximum speed of 20.4 kn (11.1 m/s) on trials. She carried up to 1630 t (1,604.3 LT) of coal, which enabled a maximum range of up to 5080 nautical miles (9,408.2 km) at a cruising speed of 12 kn (6.5 m/s).
She was armed with four 21 cm (8.3 in) guns arranged in two twin gun turret
Gun turret
A gun turret is a weapon mount that protects the crew or mechanism of a projectile-firing weapon and at the same time lets the weapon be aimed and fired in many directions.The turret is also a rotating weapon platform...
s, one on either end of the superstructure
Superstructure
A superstructure is an upward extension of an existing structure above a baseline. This term is applied to various kinds of physical structures such as buildings, bridges, or ships...
. Her secondary armament consisted of ten 15 cm (5.9 in) guns, fourteen 8.8 cm (3.5 in) guns and four 45 cm (17.7 in) underwater torpedo tubes, one in the bow, one in the stern, and one on both beams.
Service history
Roon was laid down in August 1902 at the Kiel dockyardKaiserliche Werft Kiel
Kaiserliche Werft Kiel was a German shipbuilding company founded in 1867, first as Königliche Werft Kiel but renamed in 1871 with the proclamation of the German Empire...
, and launched in June 1903, during which the inspector general Alfred von Waldersee was made patron of the ship. The ship was completed in April 1906, at a cost of 15,345,000 Mark
German gold mark
The Goldmark was the currency used in the German Empire from 1873 to 1914.-History:Before unification, the different German states issued a variety of different currencies, though most were linked to the Vereinsthaler, a silver coin containing 16⅔ grams of pure silver...
s. In April 1907, Roon and the light cruiser sailed to the United States to participate in a ceremony commemorating the anniversary of the arrival of colonists in Chesapeake Bay
Chesapeake Bay
The Chesapeake Bay is the largest estuary in the United States. It lies off the Atlantic Ocean, surrounded by Maryland and Virginia. The Chesapeake Bay's drainage basin covers in the District of Columbia and parts of six states: New York, Pennsylvania, Delaware, Maryland, Virginia, and West...
on 26 April. In addition to the German delegation, the international fleet consisted of warships from Great Britain, Japan, Austria-Hungary, France, Italy, and several other nations.
In 1908, Roon was serving as the flagship for Rear Admiral Jacobsen, in the Second Group of the Scouting Division of the High Seas Fleet
High Seas Fleet
The High Seas Fleet was the battle fleet of the German Empire and saw action during World War I. The formation was created in February 1907, when the Home Fleet was renamed as the High Seas Fleet. Admiral Alfred von Tirpitz was the architect of the fleet; he envisioned a force powerful enough to...
, along with her sistership Yorck
SMS Yorck
SMS Yorck"SMS" stands for "Seiner Majestät Schiff", or "His Majesty's Ship" in German. was the second and final ship of the Roon-class of armored cruisers built for the German Imperial Navy. Yorck was named for Ludwig Yorck von Wartenburg, a Prussian field marshal...
. After being replaced as the flagship of the Scouting Group on 30 September by the new battlecruiser
Battlecruiser
Battlecruisers were large capital ships built in the first half of the 20th century. They were developed in the first decade of the century as the successor to the armoured cruiser, but their evolution was more closely linked to that of the dreadnought battleship...
Moltke, Roon was decommissioned in 1911; however, she was recommissioned three years later at the outbreak of World War I
World War I
World War I , which was predominantly called the World War or the Great War from its occurrence until 1939, and the First World War or World War I thereafter, was a major war centred in Europe that began on 28 July 1914 and lasted until 11 November 1918...
. At the start of hostilities, Roon was serving as the flagship
Flagship
A flagship is a vessel used by the commanding officer of a group of naval ships, reflecting the custom of its commander, characteristically a flag officer, flying a distinguishing flag...
of the III Scouting Group. On 3 November 1914, she participated in the operation to bombard Yarmouth
Great Yarmouth
Great Yarmouth, often known to locals as Yarmouth, is a coastal town in Norfolk, England. It is at the mouth of the River Yare, east of Norwich.It has been a seaside resort since 1760, and is the gateway from the Norfolk Broads to the sea...
.
Bombardment of Scarborough, Hartlepool and Whitby
A month later, on 15–16 December, she participated in the bombardment of Scarborough, Hartlepool and WhitbyRaid on Scarborough, Hartlepool and Whitby
The raid on Scarborough, Hartlepool and Whitby, which took place on 16 December 1914, was an attack by the Imperial German Navy on the British seaport towns of Scarborough, Hartlepool, West Hartlepool, and Whitby. The attack resulted in 137 fatalities and 592 casualties, many of which were civilians...
. Along with the armored cruiser , Roon was assigned to the van
Vanguard (military tactics)
The vanguard is the leading part of an advancing military formation. It has a number of functions, including seeking out the enemy and securing ground in advance of the main force.- Medieval origins :...
of the High Seas Fleet, which was providing distant cover to Rear Admiral Franz von Hipper's
Franz von Hipper
Franz Ritter von Hipper was an admiral in the German Imperial Navy . Franz von Hipper joined the German Navy in 1881 as an officer cadet. He commanded several torpedo boat units and served as watch officer aboard several warships, as well as Kaiser Wilhelm II's yacht Hohenzollern...
battlecruisers while they were conducting the bombardment. During the operation, Roon and her attached destroyer
Destroyer
In naval terminology, a destroyer is a fast and maneuverable yet long-endurance warship intended to escort larger vessels in a fleet, convoy or battle group and defend them against smaller, powerful, short-range attackers. Destroyers, originally called torpedo-boat destroyers in 1892, evolved from...
s encountered the British screening forces; at 06:16, Roon came in contact with and , but no gunfire was exchanged and the ships turned away. Following reports of British destroyers from Roon as well as from , Admiral von Ingenohl
Friedrich von Ingenohl
Gustav Heinrich Ernst Friedrich von Ingenohl was a German admiral from Neuwied best known for his command of the German High Seas Fleet at the beginning of World War I....
ordered the High Seas Fleet to turn to port and head for Germany. At this point, Roon and her destroyers became the rearguard for the High Seas Fleet.
At 06:59, Roon, by this time joined by the light cruisers and Hamburg, encountered Commander Jones
Loftus William Jones
Commander Loftus William Jones VC was an English recipient of the Victoria Cross, the highest and most prestigious award for gallantry in the face of the enemy that can be awarded to British and Commonwealth forces....
' destroyers. Jones shadowed Roon until 07:40, at which point Stuttgart and Hamburg were detached to sink their pursuers. At 08:02, Roon signaled the two light cruisers and ordered them to abandon the pursuit and retreat along with the rest of the High Seas Fleet. At 07:55, Beatty
David Beatty, 1st Earl Beatty
Admiral of the Fleet David Richard Beatty, 1st Earl Beatty, GCB, OM, GCVO, DSO was an admiral in the Royal Navy...
received word of Roons location, and in an attempt to intercept the German cruisers, detached to hunt the German ships down, while his other three battlecruisers followed from a distance. By 09:00, Beatty had become aware that the German battlecruisers were shelling Hartlepool, so he decided to break off the pursuit of Roon and turn towards the German battlecruisers.
Operations in the Baltic
Admiral Reinhard ScheerReinhard Scheer
Reinhard Scheer was an Admiral in the German Kaiserliche Marine. Scheer joined the navy in 1879 as an officer cadet; he progressed through the ranks, commanding cruisers and battleships, as well as major staff positions on land. At the outbreak of World War I, Scheer was the commander of the II...
decided that because Roon and the other armored cruisers of the III Scouting Group were slow and lacked thick enough armor, they were unsuitable for service in the North Sea. Therefore, after April 1915, she operated in the Baltic Sea
Baltic Sea
The Baltic Sea is a brackish mediterranean sea located in Northern Europe, from 53°N to 66°N latitude and from 20°E to 26°E longitude. It is bounded by the Scandinavian Peninsula, the mainland of Europe, and the Danish islands. It drains into the Kattegat by way of the Øresund, the Great Belt and...
, participating in several bombardment missions. On 11 May, the British submarine spotted Roon and several other ships en route to Libau
Liepaja
Liepāja ; ), is a republican city in western Latvia, located on the Baltic Sea directly at 21°E. It is the largest city in the Kurzeme Region of Latvia, the third largest city in Latvia after Riga and Daugavpils and an important ice-free port...
, which had been recently captured by the German army. E9 fired five torpedoes at the German flotilla; two passed closely astern of Roon while the other three missed their targets as well.
On 2 July 1915, Roon participated in a battle with Russian cruisers off the shores of Gotland
Gotland
Gotland is a county, province, municipality and diocese of Sweden; it is Sweden's largest island and the largest island in the Baltic Sea. At 3,140 square kilometers in area, the region makes up less than one percent of Sweden's total land area...
, Sweden
Sweden
Sweden , officially the Kingdom of Sweden , is a Nordic country on the Scandinavian Peninsula in Northern Europe. Sweden borders with Norway and Finland and is connected to Denmark by a bridge-tunnel across the Öresund....
. The light cruiser Augsburg and three destroyers were escorting the minelaying cruiser when they were attacked by four Russian cruisers—the armored cruisers Bayan
Russian cruiser Bayan
The cruiser Bayan was the lead ship in the of armored cruisers in the Imperial Russian Navy. It was built in Toulon, France by the Compagnie des Forges et Chantiers de la Méditerranée à la Seine...
, Admiral Makarov, and light cruisers Bogatyr and Oleg. Augsburg escaped while the destroyers covered the retreat of the Albatross, which was severely damaged and forced to seek refuge in neutral Swedish waters. Roon and the light cruiser Lübeck sortied to relieve the beleaguered German destroyers. Upon arriving at the scene, Roon engaged Bayan, and Lübeck opened fire on Oleg. Shortly thereafter, the Russian cruiser Rurik, along with a destroyer, arrived to reinforce the Russian flotilla. In the following artillery duel, Roon was hit several times, and the German ships were forced to retreat.
On 10 August, Roon and shelled Russian positions at Zerel on the Sworbe Peninsula
Sõrve Peninsula
Sõrve Peninsula is a peninsula which forms the southernmost section of the Estonian island Saaremaa. Its length is 32 km, and its maximum width 10 km...
. There were several Russian destroyers anchored off Zerel; the German cruisers caught them by surprise and damaged one of them.
Later service
The fog of war led to several instances where the Royal Navy misidentified several vessels as Roon in 1916. On 16 February 1916, Roon was mistakenly reported as having been captured by a British cruiser in the North Atlantic. The ship was also mistakenly reported to have taken part in the Battle of JutlandBattle of Jutland
The Battle of Jutland was a naval battle between the British Royal Navy's Grand Fleet and the Imperial German Navy's High Seas Fleet during the First World War. The battle was fought on 31 May and 1 June 1916 in the North Sea near Jutland, Denmark. It was the largest naval battle and the only...
as the flagship of the screening force for the main body of the High Seas Fleet. This mistake appeared in historical works published shortly after the First World War, but later works have corrected it.
In November 1916, Roon was disarmed and converted into a training and accommodation ship. Stationed at Kiel, she served in this capacity until 1918. The German Navy had previously experimented with seaplane carriers, including the conversion of the old light cruiser early in 1918 for service with the fleet. Stuttgart could carry only two aircraft, however, which was deemed insufficient for fleet support. As a result, plans were drawn up to convert Roon into a seaplane carrier, with a capacity for four aircraft. The ship's main battery would have been removed and replaced with only six 15 cm guns and six 8.8 cm anti-aircraft guns; the large hangar for the seaplanes was to have been installed aft of the main superstructure
Superstructure
A superstructure is an upward extension of an existing structure above a baseline. This term is applied to various kinds of physical structures such as buildings, bridges, or ships...
The plan did not come to fruition, primarily because the German Navy relied on zeppelin
Zeppelin
A Zeppelin is a type of rigid airship pioneered by the German Count Ferdinand von Zeppelin in the early 20th century. It was based on designs he had outlined in 1874 and detailed in 1893. His plans were reviewed by committee in 1894 and patented in the United States on 14 March 1899...
s for aerial reconnaissance, not seaplanes. Roon was struck from the naval register on 25 November 1920 and scrapped the following year, in Kiel-Nordmole.