35.5 cm Haubitze M1
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The 35.5 cm Haubitze M1 was a
German German(s) may refer to: * Germany (of or related to) **Germania (historical use) * Germans, citizens of Germany, people of German ancestry, or native speakers of the German language ** For citizens of Germany, see also German nationality law **Ger ...
siege howitzer A siege is a military blockade of a city, or fortress, with the intent of conquering by attrition, or a well-prepared assault. This derives from la, sedere, lit=to sit. Siege warfare is a form of constant, low-intensity conflict characterize ...
. It was developed by
Rheinmetall Rheinmetall AG is a German automotive and arms manufacturer, headquartered in Düsseldorf, Germany. Its shares are traded on the Frankfurt stock exchange. History Rheinmetall was founded in 1889. Banker and investor Lorenz Zuckermandel L ...
before
World War II World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposin ...
to meet the German Army's request for a super-heavy howitzer. Eight were produced between 1939 and 1944. It saw service in the
Battle of France The Battle of France (french: bataille de France) (10 May – 25 June 1940), also known as the Western Campaign ('), the French Campaign (german: Frankreichfeldzug, ) and the Fall of France, was the Nazi Germany, German invasion of French Third Rep ...
and spent the rest of the war on the Eastern Front, saw action in
Operation Barbarossa Operation Barbarossa (german: link=no, Unternehmen Barbarossa; ) was the invasion of the Soviet Union by Nazi Germany and many of its Axis allies, starting on Sunday, 22 June 1941, during the Second World War. The operation, code-named after ...
, the siege of Sevastopol, the
siege of Leningrad The siege of Leningrad (russian: links=no, translit=Blokada Leningrada, Блокада Ленинграда; german: links=no, Leningrader Blockade; ) was a prolonged military blockade undertaken by the Axis powers against the Soviet city of L ...
and helped to put down the
Warsaw Uprising The Warsaw Uprising ( pl, powstanie warszawskie; german: Warschauer Aufstand) was a major World War II operation by the Polish resistance movement in World War II, Polish underground resistance to liberate Warsaw from German occupation. It occ ...
in 1944.


Description

The ''Haubitze M1'' was best described as an enlarged ''
24 cm Kanone 3 The 24-cm-Kanone 3 (24 cm K 3) was a German heavy siege gun used in the Second World War by the first battalion of Artillerie-Regiment 84. Four were in service when Germany invaded Poland, assigned to the first two batteries of I./AR 84, and ...
''. It used many of the same design principles as the smaller weapon including the dual-recoil system and a two-part carriage capable of all-around traverse when mounted on its firing platform. It also disassembled into six loads for transport. The loads were cradle, barrel, top carriage, bottom carriage, front platform and turntable and the rear platform. Each piece on its trailer was towed by a ''
Sd.Kfz. 9 The Sd.Kfz. 9 (also known as "Famo" ) was a German half-track that saw widespread use in World War II, and the heaviest half-track vehicle of any type built in quantity in Nazi Germany during the war years. Its main roles were as a prime mover f ...
'' half-track. A seventh half-track towed the gantry crane required to assemble the weapon. The gantry crane (powered by a generator on its towing vehicle) would be erected at the new firing position and would take about two hours to assemble the entire weapon.Hogg, p. 108 The howitzer's dual recoil system meant that the barrel in its ring cradle would recoil on the carriage while the carriage would recoil, in turn, on the firing platform. The recoil for both parts was controlled by hydro-pneumatic cylinders. Its elevation gear and ammunition hoist were electrically powered from the generator, although both could be used manually if necessary. Only a concrete-piercing shell (''Betongranate'') with a ballistic cap was ever used by this weapon. It used of propellant in four increments to reach a range of .Hogg, p. 108


Combat history

During the
Battle of France The Battle of France (french: bataille de France) (10 May – 25 June 1940), also known as the Western Campaign ('), the French Campaign (german: Frankreichfeldzug, ) and the Fall of France, was the Nazi Germany, German invasion of French Third Rep ...
one howitzer equipped ''Super-Heavy Artillery Battery (schwerster Artillerie-Batterie) 810'' under the command of ''I Corps'', '' Army Group B''. It bombarded Belgian fortifications of the ''PFL I Line'' after the fall of Fort Eben-Emael on the first day of the battle. The battery was absorbed by ''Heavy Artillery Battalion 641'' as its first battery on 27 July 1940 and it fought with that battalion on the Eastern Front during
Operation Barbarossa Operation Barbarossa (german: link=no, Unternehmen Barbarossa; ) was the invasion of the Soviet Union by Nazi Germany and many of its Axis allies, starting on Sunday, 22 June 1941, during the Second World War. The operation, code-named after ...
where it initially was assigned to the 9th Army, Army Group Center. In 1942 it participated in the assault on Sevastopol under the command of 11th Army of Army Group South. It accompanied that army north to Leningrad during the summer of 1942 so that it could participate in the
siege of Leningrad The siege of Leningrad (russian: links=no, translit=Blokada Leningrada, Блокада Ленинграда; german: links=no, Leningrader Blockade; ) was a prolonged military blockade undertaken by the Axis powers against the Soviet city of L ...
. Soviet efforts to relieve the siege frustrated several German attempts to consolidate their positions there, but the battalion remained there through the beginning of 1944. It participated in the German efforts to suppress the
Warsaw Uprising The Warsaw Uprising ( pl, powstanie warszawskie; german: Warschauer Aufstand) was a major World War II operation by the Polish resistance movement in World War II, Polish underground resistance to liberate Warsaw from German occupation. It occ ...
in August—September 1944. Surviving records identify no more than one howitzer in service at any one time even though five were delivered in 1942 and a few others in the following years.


See also

*
24 cm Kanone 3 The 24-cm-Kanone 3 (24 cm K 3) was a German heavy siege gun used in the Second World War by the first battalion of Artillerie-Regiment 84. Four were in service when Germany invaded Poland, assigned to the first two batteries of I./AR 84, and ...


Notes


References

* Engelmann, Joachim and Scheibert, Horst. ''Deutsche Artillerie 1934-1945: Eine Dokumentation in Text, Skizzen und Bildern: Ausrüstung, Gliederung, Ausbildung, Führung, Einsatz''. Limburg/Lahn, Germany: C. A. Starke, 1974 * Gander, Terry and Chamberlain, Peter. ''Weapons of the Third Reich: An Encyclopedic Survey of All Small Arms, Artillery and Special Weapons of the German Land Forces 1939-1945''. New York: Doubleday, 1979 * Hogg, Ian V. ''German Artillery of World War Two''. 2nd corrected edition. Mechanicsville, PA: Stackpole Books, 1997 {{DEFAULTSORT:35.5 Cm Haubitze M1 World War II howitzers World War II artillery of Germany 356 mm artillery Rheinmetall Military equipment introduced in the 1930s