The 25 cm Erdmörser (Earth Mortar) was a simple, mostly wooden mortar used for trench warfare fighting by the Imperial German Army in World War I. It consisted of a 25 cm (9.8 in) diameter (according to French sources, German sources state 24 cm (9.4 in), 65 cm (26 in) long wooden tube reinforced with iron wire with a 2.4 m (7 ft 10 in) long wooden slide attached. When in use, the tube end was placed on the ground in the trench with the slide resting on the parapet, giving an approximately 45 degree firing angle. The mortar had a range between 40 to 300 m (130 to 980 ft). Makeshift ammunition was made of sheet metal mine casings (tin cans) filled with amonal and scraps of metal (gears, bolts, nails, etc. One was even found with half a set of dentures) and a wooden bottom. Propellant consisted of a charge between 60–300 g (2–11 oz) that ignited a fuze by using glow plugs. These mortars weren't standardized, being a field expedient, and were given nicknames such as "barrel cannon" or "jam jar". They were soon supplanted by the Albrecht mortar.[1][2][3]
References
edit- ^ General staff (1917). Handbook of the German Army in War, January, 1917. War Office of Great Britain. p. 74.
- ^ "Minenwerfer Albrecht (download)" (PDF). s4ff116174b6f1622.jimcontent.com. Retrieved August 4, 2024.
- ^ Tillmann Reibert. Die Entwicklung des Granatwerfers im Ersten Weltkrieg | Die Entstehung eines neuartigen Waffentyps als Reaktion auf die Bedingungen des Stellungskrieges [The development of the grenade launcher in the First World War | The emergence of a new type of weapon as a reaction to the conditions of trench warfare] (PDF) (PhD thesis) (in German). University of Hamburg.
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