ATTM Autonomous Truck Mounted Mortar 120mm developed by Thailand


Ministry of Defense of Thailand unveils a new 120mm wheeled self-propelled mortar system called Autonomous Truck Mounted Mortar (ATMM), especially developed to provide fire support for infantry units The key advantage of self-propelled mortar artillery mounted on wheeled chassis is that it can be brought into action much faster.


ATTM Autonomous Truck Mounted Mortar 120mm developed by Thailand Defense and Security Thailand 2017 in Bangkok 925 001
Thai Ministry of Defense ATMM 120mm Autonomous Truck Mounted Mortar at Defense and Security Thailand 2017 in Bangkok.


The ATTM project is a collaboration between the Thai Ministry of Defense and the Israeli Company Elbit Systems which has provide the integration of its Elbit Soltam SPEAR 120mm mortar on a wheeled chassis.

The ATTM is based on a 4x4 military truck chassis manufactured in India by TATA which is fitted with a new cargo platform with a thickness of 7mm able to carried the SPEAR 120mm mortar system. The suspension of the truck has also been reinforced.

Elbit Systems’ SPEAR is a fully autonomous, vehicle-mounted, 120mm soft recoil mortar system for high mobility platforms SPEAR delivers effective fire support by combining the flexibility and lethality of accurate mortar fire with exceptional tactical mobility. The mortar is a derivative of the combat-proven soft recoil mortar which is muzzle loaded and turntable-mounted and is being used extensively by the US Army, NATO, the Israel .Defense Force and others.

The Elbit Systems SPEAR is equipped with cutting-edge fire control, navigation, automatic aiming and propulsion systems, which facilitate a fully-autonomous operation and provide increased fire power and accuracy (within 30 meters of the Circular Error Probability (CEP) radius.

The ATTM has a crew of four and can be ready to fire from road position in less than two minutes. It has a maximum firing range of 6.5 km and has a rate of fire of 10 rounds per minute.


ATTM Autonomous Truck Mounted Mortar 120mm developed by Thailand Defense and Security Thailand 2017 in Bangkok 925 002Close view of the Elbit Systems SPEAR 120mm mortar system mounted at the rear of the 4x4 TATA military truck chassis.


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