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122mm M-30


China: Type 54


Overview

M-30

Forward view of M-30 with original wheels and split trail carriage in closed position.
Source: www.militaryrussia.ru - © copyright lies with original owner

Origin
Soviet Union
Type
Towed howitzer
Entered service
1939
Status
Limited service
Development
Late 1930's
Developer
Soviet Union - F.F. Petrov design bureau
Production
1939 - 1955 (USSR)
Producer
Soviet Union - No. 9 Uralmash factory
China - Norinco
Number produced
19.266 produced in USSR, plus several thousand more in China
Designations
M1938 (NATO reporting name)
52-G-463 (GRAU index number)
Type 54 (Chinese production)
12,2 cm s.F.H.396(r) (Nazi German index)
122 H 38 (Finnish service)
Tacack 38 (Hungarian service)
Vz 38 (Czechoslovak service)
Wz. 1938 (Polish service)

Description

Introduction

The M-30 is a World War 2 era towed howitzer of Soviet origin. It was developed in the USSR just before World War 2 in order to replace several pre World War 1 designs. The M-30 proved to be a successful and effective design during World War 2 and various Cold War conflicts. By present day standards its range, rate of fire and weight are well below the norm.

Design

The M-30 follows a classic rugged design with its spilt trail two wheel carriage, hydraulic recoil buffer and gun shield. The chassis is relatively heavy in relation to the ordnance, which is a rifled 122mm 23-caliber howitzer without muzzle brake. An 8 men crew is required for normal operations. The preparation of the split trail carriage before firing requires about 1.5 minutes. Both indirect fire and direct fire sights are fitted. The gun shield provides a degree of protection against small arms fire over the frontal arc.

Firepower

The M-30 fires 122mm shells out to a maximum range of 11.8 km. In the direct fire role a HEAT shell may be fired in addtion to the HE-Frag shells. The maximum rate of fire is 5 to 6 rounds per minute. During sustained fire this is reduced to 1 to 2 rpm.

Mobility

The M-30 is towed by its split trail carriage and does not require a limber. Given its caliber the M-30 is rather heavy and as such it is somewhat more difficult to move. It is usually towed by a light truck, medium truck or artillery tractor. It can also be drawn by six horses or manhandled over short distances. Maximum towing speed is 50 km/h on paved roads and 35 km/h in dirt roads.

Users

The M-30 was used in large numbers by the Soviet army during World War 2. Over 17.000 were produced during World War 2 and several thousand more after the war. The M-30 was widely exported to Soviet allies in Eastern Europe, the Middle East, Africa and Asia. Since 1960 the M-30 was supplemented by the D-30 in Soviet service and today none remain in Russian service. China produced several thousand M-30's during the early Cold War era as the Type 54. Many Type 54 have also been exported. Both M-30 and Type 54 remain in active use with various third world nations.

Variants

M-30

Romanian M-30 with pressurized wheels in firing position.
Source: www.mapn.ro - © GNU Attribution - Share Alike license

List of variants of the M-30

M-30
Original Soviet production model. No variants were produced in the USSR.
Type 54
Chinese production model, direct copy of original M-30.
Type 54-I
Improved Chinese production model.
Wz. 1938/1955
Polish upgrade with castor wheel on trails and improved sights. Original model was called Wz. 1938 in Polish service.
Vz 38/74
Czechoslovak upgrade with large pressurized wheels. Original model was called Vz 38 in Czechoslovak service.
Tarack 38/68M
Hungarian upgrade with medium sized pressurized wheels. Original model was called Tarack 38 in Hungarian service.

Details

Facts M-30
General
Origin
Soviet Union
Type
Towed howitzer
Crew
8
Dimensions
Weight
2.450 kg in firing position
3.1 t with optional limber
Length
5.9 m (travelling)
8.6 m with limber
Width
1.98 m (travelling)
Height
1.71 m (travelling)
Ordnance
Type
122mm L/23
Barrel length
2.8 m
Muzzle brake
No
Muzzle velocity
515 m/s
Elevation
-3 to +63.5°
Traverse
49° in total
Firepower
Rate of fire
5 to 6 rpm
75 rounds in the first hour
Range
11.8 km maximum
630 m for HEAT round
Carriage
Type
2 wheel split trail carriage
Limber
Not required, optional
Gun shield
Yes
Tread
1.6 m
Mobility
Towing vehicle
6x6 truck, such as Ural 375D
MT-LB
Towed speed
50 km/h
Autonomous mobility
No
APU
No

Media

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