A mortar is today usually a simple, lightweight, man-portable, muzzle-loaded cannon, consisting of a smooth-bore metal tube fixed to a base plate with a lightweight bipod mount and a sight. Mortars are typically used as indirect fire weapons for close fire support with a variety of ammunition. Historically mortars were heavy siege artillery. Mortars launch explosive shells in high-arching ballistic trajectories.
Minenwerfer is the German name for a class of short range mine shell launching mortars used extensively during the First World War by the Imperial German Army. The weapons were intended to be used by engineers to clear obstacles, including bunkers and barbed wire, that longer range artillery would not be able to target accurately.
The Stokes mortar was a British trench mortar designed by Sir Wilfred Stokes KBE that was issued to the British and U.S. armies, as well as the Portuguese Expeditionary Corps, during the latter half of the First World War. The 3-inch trench mortar is a smooth-bore, muzzle-loading weapon for high angles of fire. Although it is called a 3-inch mortar, its bore is actually 3.2 inches or 81 mm.
The 2 inch medium trench mortar, also known as the 2-inch howitzer, and nicknamed the "toffee apple" or "plum pudding" mortar, was a British smooth bore muzzle loading (SBML) medium trench mortar in use in World War I from mid-1915 to mid-1917. The designation "2-inch" refers to the mortar barrel, into which only the 22 in (560 mm) bomb shaft but not the bomb itself was inserted; the spherical bomb itself was actually 9 in (230 mm) in diameter and weighed 42 lb (19 kg), hence this weapon is more comparable to a standard mortar of approximately 5–6 in (130–150 mm) bore.
The ML 9.45 inch heavy trench mortar, nicknamed the "Flying Pig", was a large calibre mortar of World War I and the standard British heavy mortar from the autumn of 1916. It was a modification of an original French design, the Mortier de 240 mm developed by Batignolles Company of Paris and introduced in 1915. Britain manufactured the modified version under licence.
The 240 mm trench mortar, or Mortier de 240 mm, was a large calibre mortar of World War I. An original French design, it was developed by Batignolles Company of Paris and introduced in 1915.
The Mortier de 58 mm type 2 or Mortier de 58 mm T N°2, also known as the Crapouillot or "little toad" from its appearance, was the standard French medium trench mortar of World War I.
The 25 cm schwerer Minenwerfer, often abbreviated as 25 cm sMW, was a heavy mine shell launching trench mortar developed for the Imperial German Army in the first decade of the 20th century.
The Mortier de 220 mm Tir Rapide modèle 1915/1916 Schneider or 220 mm TR mle 1915/1916 was a French howitzer designed and produced during the First World War. A number were still on hand during the Second World War and served in Belgian, French and German service.
The Mortier de 270 mm modèle 1889 sur affût G was a heavy mortar originally employed as coastal artillery and later converted to the siege artillery role. Mle 1889 mortars were used in both the First World War and Second World Wars.
The Mortier de 270 mm modèle 1885 was a French heavy mortar employed as siege artillery during the First World War.
Albrecht mortars or Albrecht Schwerer Minenwerfers were a series of wooden heavy mortars used by the Imperial German Army during the First World War.
The Mortier de 370 modèle 1914 Filloux (MLE) was a siege mortar. It was designed before the First World War and was used during the war.
The Mortier de 75 modèle 1915 Schneider was a French trench mortar designed and built by Schneider that saw action with the French and Belgian Army during the First World War.
The 24 cm schwere Flügelminenwerfer IKO or 24 cm sFIMW IKO was a heavy mortar used by the Imperial German Army during the First World War.
The Mortier de 58 T N°1 sometimes referred to as Lance Torpilles was an early French medium trench mortar of World War I. Built in small numbers it was a transitional type in the development of later French mortars.
The 24 cm schwere FlügelMinenWerfer Albrecht, or 24 cm sFIMW 17 Albrecht, was a heavy mortar used by the Imperial German Army during the First World War.
The Mortier de 58 T N°1 bis sometimes referred to as Lance Torpilles was an early French medium trench mortar. It was used by both the French Army and Italian Army during the First World War.
The 24 cm schwerer LadungsWerfer Ehrhardt shortened to 24 cm sLW Ehrhardt,('24 cm heavy charge thrower Ehrhardt' in English) was a heavy mortar used by the Imperial German Army during the First World War.
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