The Type 60 81 mm self-propelled mortar (60式自走81mm迫撃砲, roku-maru-shiki-jisou-81mm-hakugeki-hou) was a Japan Ground Self-Defense Force (JGSDF) tracked armored mortar carrier that based on JGSDF Type 60 Armoured Personnel Carrier Type SU-II. The vehicle along with a parallel development of Type 60 107 mm self-propelled mortar. Its official abbreviation is 81MSP and also known as SV in the service. The vehicle had been phased out, with Type 60 107 mm self-propelled mortar since mid-to-late 1990s.

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Quick Facts Place of origin, Service history ...

Type 60 81 mm self-propelled mortar
Type 60 81 mm self-propelled mortar on outdoor display
Type	Mortar carrier
Place of origin	Japan
Service history
In service	1960 – 2008
Used by	Japan
Production history
Designed	1958
Manufacturer	Mitsubishi Heavy Industries
Produced	1960
No. built	18
Specifications
Mass	12.1 tonnes (13.3 short tons)
Length	4.85 metres (15.9 ft)
Width	2.40 metres (7.9 ft)
Height	1.70 metres (5.6 ft)
Crew	5
Caliber	81 millimetres (3.2 in)
Armor	aluminum alloy
Main armament	1x M1 81mm mortar
Secondary armament	1x M2HB 12.7 mm machine gun
Engine	Mitsubishi 8HA21WT 8-cylinder diesel 220 horsepower (220 PS)
Suspension	torsion bar
Operational range	230 kilometres (140 mi)
Maximum speed	43 kilometres per hour (27 mph)

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• Type 60 107 mm self-propelled mortar
• Type 96 120 mm self-propelled mortar