Mission:
The M252A1 is a lightweight 81mm mortar system that is thirteen percent (13%) lighter in weight while at the same time maintaining the same range, rates of fire and barrel life as the legacy M252 mortar weapon system. The Army is working to develop an enhanced 81mm mortar (E81) high-explosive mortar cartridge intended to significantly increase the maximum range and lethality of 81mm mortars while retaining their hallmark portability.
Description:
The M252A1 81mm mortar system is a medium-weight, smoothbore, muzzle-loading weapon designed for long-range indirect fire support to light infantry, air assault, and airborne units. The M252A1 is a lighter version of the original M252, with its weight reduced by about 12 pounds (5.4 kg) through the use of lightweight materials.
The major components of the M252A1 system are the M253A1 Cannon, the M177A1 Bipod, the M3A2 Baseplate, and the M67A1 Sight Unit. A Blast Attenuation Device (BAD) is attached to the muzzle to reduce the blast effects on the crew. The breech end of the cannon is finned to improve cooling. The rounds use various fuzes, including the M734 Multi-option Fuze (proximity, near-surface, impact, or delay), the M772 Mechanical Time & Super Quick (MTSQ), and the M935 Point-Detonating (PD) Fuze.
The range of the mortar is controlled by the number of propellant charges attached to the tail of the round. These "horseshoe" shaped charges of nitrocellulose are removed as needed to adjust the projectile's range before the assistant gunner drops the round into the muzzle.
Specifications:
Weight
Elevation
- Minimum 800 mils, Maximum 1515 mils
Range
- Minimum 83 m, Maximum 5844 m