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120-mm self-propelled mortar system

NEMO mortar system

The NEMO mortar system can engage a target with six rounds simultaneously

NEMO on Patria AMV chassis
Entered service 2006
Crew 4 men
Dimensions and weight
Weight ?
Length 7.75 m
Width 2.83 m
Height ?
Main gun 120-mm
Barrel length ?
Machine guns -
Projectile weight ?
Maximum firing range ~ 10 km
Maximum rate of fire 10 rpm
Elevation range - 3 to + 85 degrees
Traverse range 360 degrees
Ammunition load
Main gun 50 - 60 rounds
Machine guns -
Engine Scania DI 12 diesel
Engine power 490 / 540 hp
Maximum road speed over 100 km/h
Range 800 km
Gradient 60%
Side slope 30%
Vertical step 0.7 m
Trench 2 m
Fording 1.5 m


   The NEMO of NEw MOrtar was developed as a private venture by the Patria Weapons Systems Oy. It is a lighter version of the AMOS mortar system with a single barrel, integrated onto a Patria AMV 8x8 chassis. Finish army ordered 24 of these vehicles. First vehicles were delivered in 2006. Slovenian Army became the first export customer of the NEMO system. First deliveries are expected in 2008.

   The NEMO is an unmanned mortar turret, which can be fitted to most APCs, or small naval vessels. The 120-mm mortar barrel used in NEMO is basically identical to that installed in the twin AMOS. This vehicle provides direct and indirect fire support. Firing range is about 10 km depending on the projectile and charge combination. The NEMO fires HE-FRAG, smoke, illumination and cargo rounds. It is also compatible with all standard 120-mm mines. Patria currently develops new precision guided mortar munitions. Maximum rate of fire is 10 rounds per minute. Patria claims that a burst rate of three rounds in 12 seconds can be achieved. The system is also capable of six-round simultaneous impact firing. Sustained rate of fire is 7 rounds per minute.

   The NEMO is ready to fire in less than 30 seconds and can leave firing position in less than 10 seconds. Brief redeployment time allows to avoid counter-battery fire and allows to use shoot and scoot tactics.

   Fire control system of the NEMO offers high fire accuracy.

   A typical crew of NEMO consists of commander, gunner and two loaders.

   The Patria AMV offers high degree of protection. Basic armor without add-on armor modules provides all-round protection against 7.62-mm armor-piercing bullets and artillery shell splinters. Vehicle is fitted with NBC protection and automatic fire suppression systems.

   Vehicle is powered by the Scania DI 12 diesel engine, developing 490 or 540 hp, depending on the variant. Vehicle is fitted with a central tyre inflation system. It is speculated that the NEMO is not amphibious.


Video of the Patria NEMO mortar system

NEMO mortar system

NEMO mortar system

NEMO mortar system

NEMO mortar system

NEMO mortar system

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