28 cm schwere Bruno Kanone (E)
Encyclopedia
The 28 cm schwere Bruno Kanone (E - Eisenbahnlafette (railroad mounting)), often abbreviated as s.Br.K, was a German railroad gun used during World War II
World War II
World War II, or the Second World War , was a global conflict lasting from 1939 to 1945, involving most of the world's nations—including all of the great powers—eventually forming two opposing military alliances: the Allies and the Axis...

 in the invasion of France
Battle of France
In the Second World War, the Battle of France was the German invasion of France and the Low Countries, beginning on 10 May 1940, which ended the Phoney War. The battle consisted of two main operations. In the first, Fall Gelb , German armoured units pushed through the Ardennes, to cut off and...

 and on coast-defense duties in Occupied Norway
Norway
Norway , officially the Kingdom of Norway, is a Nordic unitary constitutional monarchy whose territory comprises the western portion of the Scandinavian Peninsula, Jan Mayen, and the Arctic archipelago of Svalbard and Bouvet Island. Norway has a total area of and a population of about 4.9 million...

 for the rest of the war. Two were built using pre-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...

 coast-defense guns during the Thirties.

Design

As part of the re-armament program initiated by the Nazis
Nazism
Nazism, the common short form name of National Socialism was the ideology and practice of the Nazi Party and of Nazi Germany...

 after taking power in 1933 the Army High Command (Oberkommando des Heeres
Oberkommando des Heeres
The Oberkommando des Heeres was Nazi Germany's High Command of the Army from 1936 to 1945. The Oberkommando der Wehrmacht commanded OKH only in theory...

 - OKH)
ordered Krupp
Krupp
The Krupp family , a prominent 400-year-old German dynasty from Essen, have become famous for their steel production and for their manufacture of ammunition and armaments. The family business, known as Friedrich Krupp AG Hoesch-Krupp, was the largest company in Europe at the beginning of the 20th...

 to begin work on new railroad artillery designs, but they would take a long time to develop. Krupp pointed out that it could deliver a number of railroad guns much more quickly using obsolete guns already on hand and modernizing their original 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...

 mountings for which it still had drawings available. OKH agreed and authorized Krupp in 1936 to begin design of a series of guns between 15 and 28 cm (5.9 and 11 in) for delivery by 1939 as the Emergency Program (Sofort-Programe).

Two aged 28 cm Küsten Kanone L/42 (42 caliber Coastal Cannon) guns seized from the Belgians on 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...

 had survived the war and were placed on new mounts that were shared by all of the 28 cm "Bruno" railroad guns. The gun could traverse only enough on the mount itself for fine corrections, coarser adjustments had to be made by turning the entire mount on the Vögele turntable. The turntable (Drehscheibe) consisted of a circular track with a pivot mount in the center for a platform on which the railroad gun itself was secured. A ramp was used to raise the railway gun to the level of the platform. The platform had rollers at each end which rested on the circular rail for 360° traverse. It had a capacity of 300 tonne, enough for most of the railroad guns in the German inventory. The gun could only be loaded at 0° elevation and so had to be re-aimed for each shot. Both guns were delivered by 1938.

It fired nose- and base-fused high-explosive 284 kg (626.1 lb) shells with a ballistic cap
Shell (projectile)
A shell is a payload-carrying projectile, which, as opposed to shot, contains an explosive or other filling, though modern usage sometimes includes large solid projectiles properly termed shot . Solid shot may contain a pyrotechnic compound if a tracer or spotting charge is used...

 (28 cm Sprenggranate L/4.4 m KZ m BdZ m Hb) filled with 22.9 kilograms (50.5 lb) of TNT.

Combat history

During the Battle of France
Battle of France
In the Second World War, the Battle of France was the German invasion of France and the Low Countries, beginning on 10 May 1940, which ended the Phoney War. The battle consisted of two main operations. In the first, Fall Gelb , German armoured units pushed through the Ardennes, to cut off and...

 schwere Brunos equipped Railroad Artillery Battery (Artillerie-Batterie (E.) 689 for which the only known activity was firing on targets in southern Alsace
Alsace
Alsace is the fifth-smallest of the 27 regions of France in land area , and the smallest in metropolitan France. It is also the seventh-most densely populated region in France and third most densely populated region in metropolitan France, with ca. 220 inhabitants per km²...

 from Lörrach
Lörrach
Lörrach is a city in southwest Germany, in the valley of the Wiese, close to the French and the Swiss border. It is the capital of the district of Lörrach in Baden-Württemberg. The biggest industry is the chocolate factory Milka...

 between 14 and 17 June 1940. The battery was later transferred to Nærbø
Nærbø
Nærbø is the biggest village in the municipality of Hå, situated in the southern corner of the region of Rogaland. According to the Norwegian bureau of statistics the population of Nærbø was 5881 on January 1, 2009...

, Norway
Norway
Norway , officially the Kingdom of Norway, is a Nordic unitary constitutional monarchy whose territory comprises the western portion of the Scandinavian Peninsula, Jan Mayen, and the Arctic archipelago of Svalbard and Bouvet Island. Norway has a total area of and a population of about 4.9 million...

 for coast defense duties under the command of Artillery Group Stavanger-South (Artilleriegruppe Stavanger-Süd), but was transferred to Fredrikstad
Fredrikstad
is a city and municipality in Østfold county, Norway. The administrative centre of the municipality is the city of Fredrikstad....

 when four 24 cm (9.4 in) ex-French railroad guns were transferred from Narvik
Narvik
is the third largest city and municipality in Nordland county, Norway by population. Narvik is located on the shores of the Narvik Fjord . The municipality is part of the Ofoten traditional region of North Norway, inside the arctic circle...

in 1944.
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