SX 60


SV 60


Overview


SX 60

Rear view of Japanese SX 60 107mm self-propelled mortar carrier on parade with roof hatches open.
Source: JP_tanks_bot - © Copyright lies with original owner

Origin
Japan
Type
Self-propelled mortar
Entered service
1960
Status
Out of service
Development
Late 1950's
Developer
Japan
Production
1960
Producer
Japan
Number produced
18 SV 60, plus 2 prototypes
18 SX 60, plus 2 prototypes
Designations
60式自走81mm迫撃砲
60式自走107mm迫撃砲
81MSP
107MSP
Notable users
Japan - JGSDF

Variants


SV 60

The first mortar carrier to be developed from the SU 60 armored personnel carrier was the SV 60. The chassis is similar to the SU 60, but the rear compartment mounts a 81mm m1 mortar that fires to the rear through two large doors. A bipod and baseplate are carried allowing the mortar to be used away from the vehicle.

SX 60

The SX 60 is similar to the SV 60 in concept, but is fitted with a 107mm M2 mortar and carries less ammunition. It can be distinguished from the SV 60 as it lacks the bow machine gun. A bipod and baseplate are carried allowing the mortar to be used away from the vehicle.

Details


Facts SV 60 SX 60
General
Origin
Japan
Type
Self-propelled mortar
Crew
5 (commander, driver, 3 mortar crew)
Dimensions
Weight
12.1 t combat load
Length
4.85 m
Width
2.4 m
Height
2.31 m including M2HB
1.7 m to hull top
Main armament
Type
81mm M1 mortar
Mount
Turntable in rear compartment, fires through roof hatches
Ammunition
100 shells, 24 ready to fire
Elevation
+40° to +85°, manual
Traverse
Fires to the rear arc of the vehicle
Stabilizer
No
Secondary armament
Type
12.7mm M2HB heavy machine gun
Mount
Pintle mount on roof
Ammunition
400 rounds, 100 rounds ready to fire
Traverse
Manual traverse and elevation
Stabilizer
No
Bow armament
Type
.30 M1919A4 machine gun
Mount
Bow mount
Ammunition
Unknown
Traverse
Manual traverse over frontal arc
Stabilizer
No
Chassis
Chassis type
Tracked chassis, 5 roadwheels
Layout
Drive sprocket front, idler rear
Ground pressure
0.58 kg/cm²
Suspension
Torsion bar
Automotive
Engine model
Mitsubishi Model 8 HA 21 WT
Engine type
V8 4-stroke air-cooled turbocharged diesel
Power output
220 hp at 2.400 rpm
Transmission
Manual, 3 forward, 1 reverse
Fuel
250 L
Mobility
Speed
41 km/h on road
Range
300 km on road
230 km practical
Turn radius
7 m
Power to weight ratio
18.2 hp/t
Obstacle crossing
Ground clearance
0.4 m
Wall
0.6 m
Trench
1.8 m
Gradient
60 %
Fording
1 m
Protection
Armor type
Steel
Protection level
Small arms fire and shell splinters
NBC system
No
Smoke system
No
Equipment
Night vision
No

Media


Subcomponents


SU 60

Both SV 60 and SX 60 are based on the SU 60 armored personnel carrier, which is modified to fire the mortar through the roof hatches, or away from the vehicle.

81mm M1

The SV 60 is armed with the American 81mm M1 mortar. This has a range of 3 km with light shells. A total of 100 shells are carried, of which 24 in a ready rack.

107mm M2

The SX 60 is armed with the American 107mm M2 mortar. This has a range of 4 km. A total of 50 shells are carried, of which 18 in a ready rack.

Browning M2HB

Both SV 60 and SX 60 are armed with a roof mounted 12.7mm M2HB heavy machine gun for self-defense.

Browning M1919

The SV 60 retains the .30 M1919A4 bow machine gun of the SU 60. This is no longer fitted on the SX 60.

Related articles


Type 96

Both SV 60 and SX 60 were replaced in Japanese service by the Type 96 tracked self-propelled mortar. This mounts a larger caliber and longer range 120mm mortar.