21 cm Morser 10

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	Weapon: 21 cm Morser 10 Type: Howitzer Country of Origin: Germany Year Adopted: 1910 Caliber: 210mm Action: Breech-Loading Cannon Overall Length (mm): 2500.0 Overall Length (in): 98.43 Weight (kg): 15000.00 Weight (pounds): 33069.34 Effective Range (km): 9.4 Effective Range (miles): 5.84

The 21 cm Morser 10 was a heavy siege howitzer developed by Krupp for the German Army in the early 20th century. Designed to replace older siege artillery, it featured a 210 mm caliber barrel capable of firing large high-explosive shells to devastate fortifications and entrenched positions. The Morser 10 had a box-trail carriage and utilized a hydro-spring recoil system, which allowed for greater accuracy and reduced stress on the gun's structure. It was designed for transport in multiple loads to improve mobility on the battlefield, although it remained a relatively cumbersome artillery piece.

Production of the 21 cm Morser 10 began in 1910, and it was deployed in significant numbers during World War I. The gun saw extensive use on both the Western and Eastern Fronts, where it was employed against fortified enemy positions, particularly in the early war years. However, as the war progressed, its relatively short range of around 9 km became a limitation, leading to its gradual replacement by the improved 21 cm Morser 16, which offered better range and firepower. Despite these drawbacks, the Morser 10 remained in service throughout the war, often being used in secondary roles.

The 21 cm Morser 10 played a crucial role in the early phases of World War I, particularly in the German Army's fortress reduction campaigns. While it was eventually overshadowed by more modern designs, its impact on siege warfare was significant, demonstrating the effectiveness of heavy howitzers in trench warfare. After the war, many surviving examples were scrapped due to the restrictions imposed by the Treaty of Versailles, though some were retained for training or later modifications. Today, a few preserved examples exist in military museums, offering a glimpse into the artillery technology of the early 20th century.