The M1 mortar is an American 81 millimeter caliber mortar. It was based on the French Brandt mortar. The M1 mortar was used from before World War II until the 1950s when it was replaced by the lighter and longer ranged M29 mortar.

An 81-mm mortar is a medium-weight mortar. It is a smooth-bore, muzzle-loading, high-angle-of-fire weapon used for long-range indirect fire support of light infantry, air assault, and airborne units across the entire front of a battalion zone of influence. [1][2] Many countries use or have used an 81-mm mortar in their armed forces. Examples are:

The 81mm Sabot (INERT) M1 (fig. 1-1) is designed to fire a 22mm subcaliber practice cartridge M744, M745, M746 or M747 (charges 1, 2, 3, or 4, respectively) (fig. 1-2) as training device in all model 81mm mortars.

Feb 4, 2019 · The M1 became the standard American battalion mortar of World War 2 and saw action in the Korean War as well as the Vietnam War until it was eventually replaced by the M29 - a lighter 81mm system with a longer reach.

The M1 became the standard mortar battalion for the U.S. military in World War II, and served in the Korean and Vietnam Wars until it was eventually replaced by the M29a lighter, longer-range 81mm system.

The M1 81 mm Mortar can fire several types of shells to obtain three different effects: destruction with explosive and incendiary shells, blindness with smoke bombs and illumination with illuminating shells.

The M1 mortar is an American 81 millimeter caliber mortar. It was based on the French Brandt mortar. The M1 mortar was used from World War II until the 1950s when it was replaced by the lighter and longer ranged M29 mortar.

The Mortar, 81mm, M1, is a smooth-bore, muzzle-loading, high angle-of-fire weapon consisting of a tube and a base cap containing a fixed firing pin. The weapon is mounted to the Mount, Mortar: 81mm, M4 in standard operation.

Feb 26, 2019 · The 81mm M1 Mortar was developed from the French Brandt design first developed during WWI. The U.S government purchased the manufacturing rights in the late 1930s. The 81mm could be broken down into its three basic components for transport: the tube, the mount and the baseplate.

The American-made M1 81mm mortar was a derivative of the MLE-27/31 system made in France. It became the standard mortar of American battalions during World War II and saw action in both the Korean War and the Vietnam War until the lighter M29 system was designed.