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Type 75


75式自走155mm榴弾砲


Overview


Type 75 self-propelled howitzer

Forward view of Type 75 self-propelled howitzer in Japanese service during military trails.
Source: EarlyBird - © public domain

Origin
Japan
Type
Self-propelled howitzer
Entered service
1975
Status
Out of service
Development
1969 - 1975
Developer
Japan - Mitsubishi Heavy Industries
Production
1971 - 1972 (2 prototypes)
1975 - 1988 (series production
Producer
Japan - Mitsubishi Heavy Industries
Number produced
A total of 201 built, production complete.
Designations
75式自走155mm榴弾砲
Notable users
Japan - Japan Ground Self-Defense Force

Description


Introduction

The Type 75 is a late Cold War era self-propelled howitzer of Japanese origin. The development started in 1969. Two prototypes with different ammunition handling systems were completed in 1972. In 1975 one of the two vehicles was adopted by the Japanese Ground Self-Defense Force (JGSDF) and it was therefore named Type 75.

Layout

The Type 75 has a conventional layout. The engine and drive train are mounted at the front of the chassis and the turret at the rear. Many automotive components are shared with the Type 74 main battle tank. The crew of six consists of a commander, driver, gunner, two loaders and a radio operator.

Firepower

The Type 75 is armed with a 30-caliber 155mm howitzer that fires NATO ammunition. In the rear of the vehicle are two drums each holding nine rounds of ammunition. An extendible loading tray and rammer are used to reload the gun. Using an US M107 projectile a range of 15 km can be achieved, while using a Japanese developed projectile it has a maximum range of 19 km. The maximum rate of fire is 6 rounds per minute. For self defense a 12.7mm M2HB heavy machine gun is fitted.

Protection

The Type 75 is operated under full armor protection. The aluminum armor gives protection against small arms fire and shell splinters. NBC and fire suppression systems are fitted. There are no smoke grenade dischargers.

Mobility

The Type 75 is based on a tracked chassis that provides good cross country performance, but only at a limited speed. A Mitsubishi 450 hp diesel engine provides propulsion.

Users

The Type 75 is only used by the Japan self-defense force and has never been exported. Since the 1980's it has been the primary Japanese self propelled howitzer. It is slowly being supplemented by the newer Type 99.

Variants


Type 75 self-propelled howitzer

Right side view of Type 75 self-propelled howitzer on the move.
Source: www.buta-neko.net - © copyright lies with original owner

Recognizing the Type 75

The Type 75 is a tracked self-propelled howitzer of Japanese origin. No variants of the Type 75 have ever been developed. The Type 75 is armed with a 155mm L/30 gun connected to an automatic loader.

The Type 75 looks similar to the US M109 from the outside, but the interior is very different. Also the front of the turret is square and not rounded like the M109. The Type 75 has larger roadwheels than the M109 and each roadwheel is larger.

Details


Facts Type 75
General
Origin
Japan
Type
Self-propelled howitzer
Crew
6 (commander, driver, gunner, 3 loaders)
Dimensions
Weight
25.3 t combat load
Length
6.64 m hull
7.79 m gun forward
Width
3.09 m
Height
2.55mm to turret roof
Main armament
Type
155mm L/30 howitzer
Mount
Main gun in turret
Ammunition
28 rounds, 18 ready to fire
Elevation
-5° to +65°, powered
Traverse
360°, powered, 12/°s
Stabilizer
No
Secondary armament
Type
12.7mm M2HB heavy machine gun
Mount
Pintle mount on turret roof
Ammunition
1.000 rounds, 100 ready to fire
Traverse
Manual traverse and elevation
Stabilizer
No
Chassis
Chassis type
Tracked chassis, 6 roadwheels
Chassis layout
Drive sprocket front, rear roadwheel doubles as idler
Ground pressure
0.64 kg/cm²
Suspension
Torsion bar
Automotive
Engine
Mitsubishi 6ZF V6 diesel
Power output
450 hp at 2.200 rpm
Transmission
Manual, 4 forward, 1 reverse
Fuel
650 L
Mobility
Speed
47 km/h
Range
300 km
Power to weight ratio
17.8 hp/t
Obstacle crossing
Ground clearance
0.4 m
Wall
0.7 m
Trench
2.5 m
Gradient
60 %
Slope
30 %
Fording
1.3 m
Protection
Armor type
Aluminum
NBC system
Yes
Smoke system
None
Equipment
Night vision
Yes

Related articles


Type 99

The Type 99 was developed to supplement and replace the Type 75 self-propelled howitzer. The Type 99 is a more modern design with longer range.

Browning M2HB

The 12.7mm M2HB heavy machine gun is used as secondary armament on the turret roof of the Type 75.

M109

The Japanese Type 75 looks very similar to early models of the US M109 self-propelled howitzer. Both vehicles have a similar layout with the engine located at the front.