Kolberg-class cruiser

File:Kolberg-class plan and profile.png

The ships of the {{lang|de|Kolberg}} class were {{convert|130|m|sp=us}} long at the waterline and {{convert|130.50|m|ftin|abbr=on}} long overall. They had a beam of {{convert|14|m|ftin|abbr=on}} and a draft of {{convert|5.45|to|5.73|m|ftin|abbr=on}} forward and {{convert|5.27|to|5.56|m|ftin|abbr=on}} aft. They displaced {{convert|4362|t|LT|sp=us|lk=on}} as designed, but the ships varied in their full-load displacement. {{lang|de|Kolberg}} displaced {{cvt|4915|t|LT}} at full load; {{lang|de|Mainz}} displaced {{cvt|4889|t|LT}}, {{lang|de|Cöln}} displaced {{cvt|4864|t|LT}}, and {{lang|de|Augsburg}} displaced {{cvt|4882|t|LT}}.{{sfn|Gröner|p=106}}

The ships were steel-built; their hulls were constructed with longitudinal and transverse steel frames. The hulls contained thirteen watertight compartments and a double bottom that extended for fifty percent of the length of the keel. The ships were good sea boats, although they suffered from severe rolling and were fairly stiff. They were not very maneuverable and had a large turning radius. Steering was controlled by a single rudder. Their transverse metacentric height was {{convert|.83|m|ftin|abbr=on}}. The ships had a standard crew of 18 officers and 349 enlisted men and carried a number of smaller vessels, including one picket boat, one barge, one cutter, two yawls, and two dinghies.{{sfn|Gröner|p=106}}

All four ships had slightly different propulsion systems in order to test engines from competing companies.{{sfn|Campbell & Sieche|p=159}} {{lang|de|Kolberg}} was equipped with two sets of Melms & Pfenniger steam turbines driving four three-bladed propellers {{convert|2.25|m|ftin|abbr=on}} in diameter. {{lang|de|Mainz}} was powered by two AEG-Curtiss turbines driving a pair of three-bladed screws {{convert|3.45|m|ftin|abbr=on}} in diameter. {{lang|de|Cöln}} initially had Zoelly turbines, though before sea trials, these were replaced with two sets of {{lang|de|Germania}} turbines with four three-bladed screws; two were {{convert|2.55|m|ftin|abbr=on}} in diameter, and two were {{convert|1.78|m|ftin|abbr=on}} wide. {{lang|de|Augsburg}} was equipped with two sets of Parsons turbines with four 3-bladed screws 2.25 m in diameter. All four ships were equipped with fifteen Marine type water-tube boilers, divided into four boiler rooms on the centerline. In 1916, {{lang|de|Kolberg}} and {{lang|de|Augsburg}} were equipped with supplementary oil-firing to increase the burn rate of the coal-fired boilers;{{sfn|Gröner|p=106}} {{lang|de|Mainz}} and {{lang|de|Cöln}} had been sunk by that time.{{sfn|Campbell & Sieche|p=159}}

The ships' engines were designed to give {{convert|19000|shp|lk=in}}, with the exception of {{lang|de|Mainz}}{{'}}s engines, which were rated at {{convert|20200|shp|abbr=on}}. These were powered by fifteen coal-fired Marine water-tube boilers, which were trunked into three evenly spaced funnels. These gave the ships a top speed of {{convert|25.5|kn}}; {{lang|de|Mainz}}{{'}}s more powerful engines gave her a half-knot speed advantage. All four ships exceeded these figures on speed trials, however, and all four cruisers reached speeds in excess of {{convert|26|kn}}. {{lang|de|Kolberg}} carried {{convert|970|MT|abbr=on}} of coal, and after 1916, {{convert|115|MT|abbr=on}} of oil. This gave her a maximum range of approximately {{convert|3250|nmi|lk=in}} at {{convert|14|kn}}. {{lang|de|Mainz}} carried {{convert|1010|MT|abbr=on}} of coal, which allowed her to steam for {{convert|3630|nmi|abbr=on}} at the cruising speed. {{lang|de|Cöln}} carried {{convert|960|MT|abbr=on}} of coal for a cruising radius of {{convert|3500|nmi|abbr=on}}. {{lang|de|Augsburg}} carried {{convert|940|MT|abbr=on}}, and had the same radius of action as {{lang|de|Cöln}}.{{sfn|Gröner|p=106}}

The ships were armed with a main battery of twelve 10.5 cm SK L/45 guns in single pedestal mounts. Two were placed side by side forward on the forecastle, eight were located amidships, four on either side, and two were side by side aft.{{sfn|Campbell & Sieche|p=159}} For {{lang|de|Kolberg}} and {{lang|de|Augsburg}}, the 10.5 cm guns were replaced in 1916–1917 with six 15 cm SK L/45 guns. They also carried four 5.2 cm SK L/55 anti-aircraft guns, though these were replaced on the surviving ships with a pair of two 8.8 cm SK L/45 anti-aircraft guns in 1918. They were also equipped with a pair of {{convert|45|cm|abbr=on|1}} torpedo tubes submerged in the hull. Two deck-mounted {{convert|50|cm|abbr=on}} torpedo tube launchers were added to {{lang|de|Kolberg}} and {{lang|de|Augsburg}} in 1918. All four ships could also carry 100 mines.{{sfn|Gröner|p=106}}

The ships were protected with a combination of normal steel and Krupp cemented steel; the armor consisted of a layer of Krupp steel backed with two layers of steel. From stern to stem, the deck was covered with {{convert|20|mm|abbr=on}} thick armor aft, {{convert|40|mm|abbr=on}} thick armor plate over the machinery spaces, 20 mm thick armor forward of the machinery spaces, and {{convert|80|mm|abbr=on}} on the bow. The coamings for the ships' funnels were {{convert|100|mm|abbr=on}} thick. The conning tower had 100 mm thick sides and a 20 mm thick roof. The main battery guns were equipped with shields that were {{convert|50|mm|abbr=on}} thick.{{sfn|Gröner|p=106}}

{{lang|de|Kolberg}} was ordered under the contract name {{lang|de|Ersatz}} {{SMS|Greif||2}} and was laid down in early 1908 at the {{lang|de|Schichau-Werke}} shipyard in Danzig under construction number 814. She was launched on 14 November 1908, after which fitting-out work commenced. She was commissioned into the High Seas Fleet on 21 June 1910. For the modifications in 1916–1917, {{lang|de|Kolberg}} went into drydock at the {{lang|de|Kaiserliche Werft}} in Kiel. {{lang|de|Mainz}} was ordered as {{lang|de|Ersatz}} {{SMS|Jagd||2}} and was laid down in 1907 at the AG Vulcan shipyard in Stettin. Built under construction number 288, she was launched on 23 January 1909, and was commissioned into the fleet on 1 October 1909.{{sfn|Gröner|pp=106–107}}

{{lang|de|Cöln}} was ordered under the contract name {{lang|de|Ersatz}} {{SMS|Schwalbe|1887|2}} and was laid down in 1908 at the Germaniawerft shipyard in Kiel. Her construction number was 191. She was launched on 5 June 1909, and after fitting-out was completed, she was commissioned into the fleet on 16 June 1911. {{lang|de|Augsburg}} was ordered as {{lang|de|Ersatz}} {{SMS|Sperber|1888|2}} from the {{lang|de|Kaiserliche Werft}} shipyard in Kiel. Her keel was laid in 1908 under building number 34. She was launched on 10 July 1909 and was commissioned into the fleet on 1 October 1910. She returned to the {{lang|de|Kaiserliche Werft}} shipyard in Kiel for her modernization in 1916–1917.{{sfn|Gröner|pp=106–107}}

class="wikitable plainrowheaders" |+ Construction data ! scope="col" | Name ! scope="col" | Builder ! scope="col" | Laid down ! scope="col" | Launched ! scope="col" | Commissioned ! scope="col" | Fate
scope="row" | {{SMS|Kolberg||2}} |Schichau-Werke, Elbing | 15 January 1908 | 14 November 1908 | 21 June 1910 | Transferred to France as reparations, 28 April 1920
scope="row" | {{SMS|Mainz||2}} |AG Vulcan, Stettin | September 1907 | 23 January 1909 | 1 October 1909 | Sunk during surface action, 28 August 1914
scope="row" | {{SMS|Cöln|1909|2}} | {{lang|de|Germaniawerft}}, Kiel | 25 May 1908 | 5 June 1909 | 16 June 1911 | Sunk during surface action, 28 August 1914
scope="row" | {{SMS|Augsburg||2}} | {{lang|de|Kaiserliche Werft}} Kiel | August 1908 | 10 July 1909 | 1 November 1910 | Surrendered to Japan as war prize, 3 September 1920

File:A Remarkable Camera Record of the Sinking of the German Cruiser Mainz off Heligoland August 28th 1914.jpg

After their commissioning, {{lang|de|Kolberg}}, {{lang|de|Mainz}}, and {{lang|de|Cöln}} were assigned to the II Scouting Group, part of the reconnaissance forces of the High Seas Fleet.{{sfn|Scheer|p=14}} {{lang|de|Augsburg}} was instead used as a training ship for torpedo crews and gunnery.{{sfn|Gröner|p=107}} {{lang|de|Cöln}} was assigned as the flagship of Rear Admiral Leberecht Maass. At the outbreak of World War I in August 1914, the II Scouting Group was deployed to a patrol line based on the island of Heligoland.{{sfn|Scheer|p=42}} {{lang|de|Augsburg}} meanwhile was mobilized for active service and sent into the Baltic. There, she participated in an operation that saw the first shots of the war fired against the Russians, on 2 August.{{sfn|Halpern|p=184}}

On the morning of 28 August, the British Harwich Force, supported by the battlecruisers of Vice Admiral David Beatty's 1st Battlecruiser Squadron, broke into the Heligoland Bight and attacked the II Scouting Group patrols. In the confused action, {{lang|de|Mainz}} and {{lang|de|Cöln}} were sunk, by light cruisers and battlecruisers, respectively. The majority of crewmen from {{lang|de|Mainz}} were picked up by the British ships, but {{lang|de|Cöln}} was lost with only one survivor. {{lang|de|Kolberg}} was stationed in port during the attack, and steamed out to support the beleaguered German forces, but the British had departed by the time she reached the scene.{{sfn|Staff|pp=6–8, 19, 21, 26}}

{{lang|de|Kolberg}} continued to serve with the reconnaissance forces in the North Sea, including seeing action at the raid on Scarborough, Hartlepool and Whitby in December 1914,{{sfn|Tarrant|p=31}} where she laid a minefield off the British coast, and the Battle of Dogger Bank in January 1915. At Dogger Bank, she fired the first shots—and scored the first hits—of the engagement, at the cruiser {{HMS|Aurora|1913|6}}. {{lang|de|Augsburg}} was meanwhile heavily engaged in the Baltic; in June 1915, she participated in a minelaying operation in the Gulf of Finland that saw the loss of the minelayer {{SMS|Albatross|1907|6}}.{{sfn|Halpern|pp=41, 45, 194–195}}

{{lang|de|Kolberg}} then joined her sister in the Baltic during the Battle of the Gulf of Riga in August 1915. During the operation, {{lang|de|Kolberg}} and the battlecruiser {{SMS|Von der Tann||2}} bombarded Russian positions on Utö, while {{lang|de|Augsburg}} steamed into the Gulf with the battleship {{SMS|Posen||2}}, where they sank a Russian gunboat and damaged another. By 19 August, the danger of British and Russian submarines in the Gulf prompted the Germans to withdraw.{{sfn|Halpern|pp=197–198}} {{lang|de|Augsburg}} participated in another, unsuccessful attempt to force the Gulf in late 1916.{{sfn|Polmar & Noot|p=47}} Both ships were present for Operation Albion, another large-scale assault on the Gulf of Riga, in October 1917. The ships were involved in a variety of operations, including minesweeping, and screening for the battleships {{SMS|König||2}} and {{SMS|Kronprinz|1914|2}} while they destroyed Russian opposition in the Gulf. Men from {{lang|de|Kolberg}} also landed on one of the islands to destroy a Russian gun battery.{{sfn|Staff|pp=60, 102–103, 119–120}}

Both ships survived the war. As part of the Treaty of Versailles, which ended the war, the ships were awarded to the victorious powers as war prizes. {{lang|de|Kolberg}} was allocated to France, where she was commissioned into the French Navy as {{lang|fr|Colmar}}. {{lang|de|Augsburg}} was transferred to Japanese control; having no use for her, they sold the ship for scrapping.{{sfn|Gröner|p=107}} {{lang|fr|Colmar}} saw one tour on colonial duty in Asia in 1924, where she participated in a multinational operation to protect foreign nationals from Chinese unrest in Shanghai.{{sfn|Waldron|pp=53–54}} She was subsequently stricken in 1927 and broken up for scrap in Brest, France.{{sfn|Smigielski|p=201}}

{{Commons category}}

{{Reflist|20em}}

• {{cite book

| last1 = Campbell

| first1 = N. J. M.

| last2 = Sieche

| first2 = Erwin

| chapter = Germany

| pages = 134–189

| editor1-last = Gardiner

| editor1-first = Robert

| editor2-last = Gray

| editor2-first = Randal

| year = 1986

| title = Conway's All the World's Fighting Ships 1906–1921

| publisher = Conway Maritime Press

| location = London

| isbn = 978-0-85177-245-5

| name-list-style=amp

| ref ={{sfnRef|Campbell & Sieche}}

| url=https://archive.org/details/conwaysallworlds0000unse_z3o0

}}

• {{cite book

| last = Gröner

| first = Erich

|author-link=Erich Gröner

| year = 1990

| title = German Warships: 1815–1945

| volume = I: Major Surface Vessels

| publisher = Naval Institute Press

| location = Annapolis

| isbn = 978-0-87021-790-6

| ref ={{SfnRef|Gröner}}

}}

• {{cite book

|last=Halpern

|first=Paul G.

|title=A Naval History of World War I

|year=1995

|location=Annapolis

|publisher=Naval Institute Press

|isbn=1-55750-352-4

|ref={{SfnRef|Halpern}}

}}

• {{cite book

|last=Nottelmann

|first=Dirk

|editor-last=Jordan

|editor-first=John

|publisher=Osprey

|location=Oxford

|year=2020

|title=Warship 2020

|isbn=978-1-4728-4071-4

|chapter=The Development of the Small Cruiser in the Imperial German Navy

|pages=102–118

|ref={{SfnRef|Nottelmann}}

}}

• {{cite book

|last1=Polmar

|first1=Norman

|last2=Noot

|first2=Jurrien

|title=Submarines of the Russian and Soviet Navies, 1718–1990

|year=1991

|location=Annapolis

|publisher=Naval Institute Press

|isbn=978-0-87021-570-4

|name-list-style=amp

|ref={{SfnRef|Polmar & Noot}}

}}

• {{cite book

|last=Scheer

|first=Reinhard

|authorlink=Reinhard Scheer

|title=Germany's High Seas Fleet in the World War

|year=1920

|publisher=Cassell and Company

|location=London

|url=http://richthofen.com/scheer/

|id=[https://archive.org/details/germanyshighseaf00sche Photocopy of book]

|oclc=1045594895

|ref={{SfnRef|Scheer}}

|access-date=2012-04-03

|archive-date=2008-09-16

|archive-url=https://web.archive.org/web/20080916220821/http://www.richthofen.com/scheer/

|url-status=dead

}}

• {{cite book

|last=Smigielski

|first=Adam

|chapter=France

|pages=190–220

|editor1-last=Gardiner

|editor1-first=Robert

|editor2-last=Gray

|editor2-first=Randal

|title=Conway's All the World's Fighting Ships 1906–1921

|year=1985

|location=Annapolis

|publisher=Naval Institute Press

|isbn=978-0-87021-907-8

|name-list-style=amp

| ref = {{SfnRef|Smigielski}}

}}

• {{cite book

|last=Staff

|first=Gary

|title=Battle for the Baltic Islands

|year=2008

|location=Barnsley

|publisher=Pen & Sword Maritime

|isbn=978-1-84415-787-7

|ref={{SfnRef|Staff}}

}}

• {{cite book

|last=Tarrant

|first=V. E.

|title=Jutland: The German Perspective

|year=1995

|location=London

|publisher=Cassell Military Paperbacks

|isbn=978-0-304-35848-9

|ref={{SfnRef|Tarrant}}

}}

• {{cite book

|last=Waldron

|first=Arthur

|title=From War to Nationalism: China's Turning Point, 1924–1925

|year=2002

|location=Cambridge

|publisher=Cambridge University Press

|isbn=0-521-52332-X

|ref={{SfnRef|Waldron}}

}}

• {{cite book

| last1 = Dodson

| first1 = Aidan

| last2 = Cant

| first2 = Serena

| title = Spoils of War: The Fate of Enemy Fleets after the Two World Wars

| year = 2020

| publisher = Seaforth Publishing

| location = Barnsley

| isbn = 978-1-5267-4198-1

| ref = {{sfnref|Dodson & Cant}}

}}

• {{cite book

| last1 = Dodson

| first1 = Aidan

| author-link1 = Aidan Dodson

| last2 = Nottelmann

| first2 = Dirk

| year = 2021

| title = The Kaiser's Cruisers 1871–1918

| publisher = Naval Institute Press

| location = Annapolis

| isbn = 978-1-68247-745-8

| ref = {{sfnRef|Dodson & Nottelmann}}

}}

• {{cite book|first1=Gerhard|last1=Koop|first2=Klaus-Peter|last2=Schmolke|title=Kleine Kreuzer 1903–1918: Bremen bis Cöln-Klasse|language=de|trans-title=Small Cruisers 1903–1918: The Bremen Through Cöln Classes|publisher=Bernard & Graefe Verlag|location=München|year=2004|isbn=3-7637-6252-3 |name-list-style=amp}}

{{Kolberg class light cruisers}}

{{WWI German ships}}

{{Good article}}

{{DEFAULTSORT:Kolberg}}

Category:Cruiser classes

Category:World War I cruisers of Germany

Category:Ship classes of the French Navy