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Type 31 60mm

60mm Infantry Light Mortar [ 1943 ]

The Type 31 60mm Light Mortar was a Chinese copy of the American M2 series - itself a copy of the French Modele 1935 product.

Authored By: Staff Writer | Last Edited: 08/20/2016 | Content ©www.MilitaryFactory.com | The following text is exclusive to this site.

The Chinese Type 31 series of light 60mm infantry mortar was an indigenous copy of the American M2 60mm mortar series. The American M2 itself was nothing more than a copy of the French Stokes-Brandt "Mortier Modele 1935" of 1935, proving the French design as utterly sound and quite excellent in its own right. Key differences between the Chinese and American versions lay in the shorter barrel of the Chinese model, which measured in at 675mm in length. While this made the Chinese version lighter in weight, it did restrict its operational range to 1,530 meters.

Design of the Type 31 was highly conventional as was its operation. The system consisted of three major components made up of the square baseplate, firing tube and adjustable bipod. The crew could adjust elevation by a lever along the bipod assembly. A carrying handle along the top of the firing tube facilitated transport and the Type 31 could be further broken down to have its pieces carried by the fire team. Operation was much in the same fashion as the American and French design before it, requiring the operator to simply drop the 60mm projectile down the muzzle into the smoothbore tube. A firing pin actuated the projectile's propellant which sent the projectile into the air against the target area along a predetermined calculated path.

The Type 31 was eventually modernized to become the Type 63 light mortar. This newer version was designed to be lighter and more portable with a smaller area baseplate - the baseplate now designed as rectangular over the original's square design. Operationally, the Type 63 behaved much in the same way as the Type 31 before it including capabilities.©MilitaryFactory.com
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Service Year

China national flag graphic


60mm Infantry Light Mortar

National flag of China China
(OPERATORS list includes past, present, and future operators when applicable)
Fire Support
Capable of suppressing enemy elements at range through direct or in-direct fire.

Overall Length
675 mm
26.57 in
Barrel Length
675 mm
26.57 in
Empty Wgt
44.09 lb
20.00 kg

Adjustable Elevation Mechanism


Manually-Operated; Pin Strike

(Material presented above is for historical and entertainment value and should not be construed as usable for hardware restoration, maintenance, or general operation - always consult official manufacturer sources for such information)



Sample Visuals**

Graphical image of an infantry mortar projectile / shell
Rounds / Feed

Single-Shot; Reusable Firing Tube
Cartridge relative size chart
*May not represent an exhuastive list; calibers are model-specific dependent, always consult official manufacturer sources.
**Graphics not to actual size; not all cartridges may be represented visually; graphics intended for general reference only.
Max Eff.Range
5,018 ft
(1,529 m | 1,673 yd)
Muzzle Velocity
500 ft/sec
(152 m/sec)

Type 31 - Base Series Designation
Type 61 - Modernized Variant; small-area rectangular baseplate; lightened operational weight.

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Images Gallery

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Image of the Type 31 60mm
Left side view of the Type 31 60mm mortar on display
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Image of the Type 31 60mm
Front left side view of the Type 31 60mm infantry mortar
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Image of the Type 31 60mm
A U.S. service member demonstrates the portability of aType 31 60mm mortar


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