AMOS

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Patria AMOS
Finnish AMV with AMOS mortar turret
Type	Twin-barrel, self-loading mortar system
Place of origin	Finland/Sweden
Service history
In service	2007
Used by	Finnish Army
Production history
Designer	50 % Patria Vammas Oy 50 % Alvis Hägglunds AB
Designed	1994–2006
Manufacturer	Patria Hägglunds Oy
Specifications
Mass	4,445 kg (9,800 lb)(turret only)
Barrel length	3,000 mm (9 ft 10 in) L/25
Crew	1+3 (vehicle-fit, 2 in turret)
Shell	Standard mortar smoothbore + stub case or smart guided ammunition. Typically HE
Caliber	2 × 120 millimetres (4.72 in) smoothbore
Barrels	2
Breech	yes
Recoil	hydro-pneumatic suspension
Carriage	48 rds
Elevation	−3° to +85°, electrical/manual
Traverse	± 360°, electrical/manual
Rate of fire	16 rds/min maximum 12 rds/min sustained
Effective firing range	6–10 km (3.7–6.2 mi) (ammo dependent)
Maximum firing range	10 km (6.2 mi) (indirect fire) 150–1,550 m (0.093–0.963 mi) (direct fire) [1]

AMOS or Advanced Mortar System is a Finno-Swedish 120 mm semi-automatic twin barrelled, breech loaded mortar turret. AMOS has been fitted to a wide range of armoured vehicles, such as the Sisu Pasi, Patria AMV and Combat Vehicle 90. The Swedish Navy originally planned to fit AMOS to the CB90 assault craft, but found that it was too small to carry it. Instead, a project to develop the larger Combat Boat 2010 was launched specifically to carry AMOS. Sweden cancelled its acquisition of the AMOS in 2009 due to budget regulations by recommendations from Genomförandegruppen. In 2016 a new self propelled mortar system called Mjölner based on a CV90 hull was ordered by the Swedish armed forces, it is based on the AMOS and has many visual similarities but is not as advanced.