Chi-Ha LG

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This page is about the Japanese medium tank Chi-Ha LG. For other uses, see Chi-Ha (Family).
Chi-Ha LG
GarageImage Chi-Ha LG.jpg
ArtImage Chi-Ha LG.png
Chi-Ha LG
2.7 2.7 2.7
Research:14 000 Specs-Card-Exp.png
Purchase:55 000 Specs-Card-Lion.png
Show in game


The Type 97 Chi-Ha Long Gun / Long 12cm SPG (長十二糎自走砲) is a rank II Japanese tank destroyer with a battle rating of 2.7 (AB/RB/SB). It was introduced in Update "Raining Fire".

General info

Survivability and armour

Armourfront / side / back
Hull25 / 25 / 20
Turret10 / 0 / 0
Crew5 people
Visibility107 %

Armour type:

  • Rolled homogeneous armour (Hull)
  • Structural steel (Gun breech and mount)
Armour Front (Slope angle) Sides Rear
Hull 25 mm 25 mm Top
25 mm Bottom
20 mm
Turret 10 mm Turret front
10 mm Gun mantlet


Speedforward / back
AB44 / 7 km/h
RB and SB40 / 6 km/h
Number of gears4 forward
1 back
Weight15.0 t
Engine power
AB324 hp
RB and SB170 hp
Power-to-weight ratio
AB21.6 hp/t
RB and SB11.3 hp/t
Game Mode Max Speed (km/h) Weight (tons) Engine power (horsepower) Power-to-weight ratio (hp/ton)
Forward Reverse Stock Upgraded Stock Upgraded
Arcade 44 7 15 241 324 16.07 21.6
Realistic 40 6 150 170 10 11.33

Modifications and economy

Repair costBasic → Reference
AB1 600 → 1 979 Sl icon.png
RB1 700 → 2 102 Sl icon.png
SB1 900 → 2 350 Sl icon.png
Total cost of modifications14 080 Rp icon.png
33 200 Sl icon.png
Talisman cost860 Ge icon.png
Crew training16 000 Sl icon.png
Experts55 000 Sl icon.png
Aces270 Ge icon.png
Research Aces250 000 Rp icon.png
Reward for battleAB / RB / SB
40 / 70 / 100 % Sl icon.png
130 / 130 / 130 % Rp icon.png
Mobility Protection Firepower
Mods new tank traks.png
920 Rp icon.png
2 200 Sl icon.png
90 Ge icon.png
Mods new tank suspension.png
780 Rp icon.png
1 800 Sl icon.png
80 Ge icon.png
Mods new tank break.png
Brake System
780 Rp icon.png
1 800 Sl icon.png
80 Ge icon.png
Mods new tank filter.png
1 200 Rp icon.png
2 800 Sl icon.png
120 Ge icon.png
Mods new tank transmission.png
2 300 Rp icon.png
5 500 Sl icon.png
230 Ge icon.png
Mods new tank engine.png
2 300 Rp icon.png
5 500 Sl icon.png
230 Ge icon.png
Mods tank tool kit.png
920 Rp icon.png
2 200 Sl icon.png
90 Ge icon.png
Mods extinguisher.png
780 Rp icon.png
1 800 Sl icon.png
80 Ge icon.png
Mods tank reinforcement jp.png
Crew Replenishment
1 200 Rp icon.png
2 800 Sl icon.png
120 Ge icon.png
Mods new tank horizontal aiming.png
Horizontal Drive
920 Rp icon.png
2 200 Sl icon.png
90 Ge icon.png
Mods tank cannon.png
Adjustment of Fire
780 Rp icon.png
1 800 Sl icon.png
80 Ge icon.png
Mods new tank vertical aiming.png
Elevation Mechanism
1 200 Rp icon.png
2 800 Sl icon.png
120 Ge icon.png


Main armament

120 mm 10th Year Type cannon
Ammunition10 rounds
Reloadbasic crew → aces
13.0 → 10.0 s
Vertical guidance-10° / 15°
Horizontal guidance-60° / 60°

This gun shouldn't be confused with the one on the Chi-Ha Short Gun, while said Chi-Ha has a short gun meant for transport ships on anti submarine & close range fire range, the 12cm/45 10th Year was used as coastal emplacements and outfitted on early Japanese cruisers. It offers a high velocity gun to fling HE over the map with quite an ease.

120 mm 10th Year Type Turret rotation speed (°/s) Reloading rate (seconds)
Mode Capacity Vertical Horizontal Stabilizer Stock Upgraded Full Expert Aced Stock Full Expert Aced
Arcade 10 -10°/+15° ±60° N/A 8.80 12.19 14.80 16.37 17.41 13.00 11.50 10.60 10.00
Realistic 5.95 7.00 8.50 9.40 10.00


Penetration statistics
Ammunition Type of
Penetration @ 0° Angle of Attack (mm)
10 m 100 m 500 m 1,000 m 1,500 m 2,000 m
Ordinary, Mod.1 HE 25 25 25 25 25 25
C.P.(BF) SAPCBC 103 102 95 87 80 74
Shell details
Ammunition Type of
Mass (kg)
Fuse delay
Fuse sensitivity
Explosive Mass
(TNT equivalent) (g)
0% 50% 100%
Ordinary, Mod.1 HE 825 20.4 0 0.1 1,970 79° 80° 81°
C.P.(BF) SAPCBC 825 20.4 1.2 19 1,870 48° 63° 71°

Ammo racks

Ammo racks of the Chi-Ha LG
rack empty
10 (+9) No


  • Shells are modeled individually and disappear after having been shot or loaded.

Usage in battles

Describe the tactics of playing in the vehicle, the features of using vehicles in the team and advice on tactics. Refrain from creating a "guide" - do not impose a single point of view but instead give the reader food for thought. Describe the most dangerous enemies and give recommendations on fighting them. If necessary, note the specifics of the game in different modes (AB, RB, SB).

Pros and cons


  • High shell velocity
  • Quick reload for a gun of its size
  • The C.P.(BF) combines the penetration of APHE and the splash-damage capability of HE. The explosion of a non-penetrating hit to a cupola can wreck the roof armor of a tank
  • Versatile Chi-Ha chassis
    • Quite fast (up to 44 km/h | 39 km/h), allowing it to get to certain spots in time
    • Great turning ability in low gear
    • Lovely climbing ability, Good to get in sniper locations


  • Gun shield is small and thin, doesn't provide too much cover
  • Only one crew member is inside the tank
    • Vehicle can be destroyed due low caliber MG fire even with full crew
    • Two loader crew in the back of the tank have no direct cover
  • 10 shells max
  • Ammunition is very exposed, one lucky shot can destroy the vehicle
  • Shells might have some trouble penetrating the front armor of some tanks, especially in uptiers


As the Chi-Ha was very structurally sound and is able to withstand high amounts of additional weights while maintaining stable stress-levels and speed. This made it a great testbed for heavier weapons and equipment.


One of these additions/variants was a Japanese Navy Construction Headquarters refit of the Chi-Ha to carry the 12 cm/45 10th Year naval cannon at the end of the war. Information of the development of the Chi-Ha Long Gun is scarce but what is certain is that they were to be constructed in defence of the homeland in-case of the highly probable American invasion, target allied armour and reposition after being shown.

Very slight changes took place with the most notable being the addition of a muzzle brake. The Chi-Ha would be simply used as a moving platform and hence all the default equipment from turret, hull machine gun, radio equipment and other interior pieces were stripped in exchange for ammo storage. The 12cm cannon was bolted on the hull and used similarly to the Archer in practice, firing from the rear to maintain recoil levels while firing.

The crew consisted out of 5 people; the driver, tank commander, two gun crew, and an ammunition carrier. The cannon could elevate 20° and decline to -10°. Operating the cannon wasn't an easy task either due to the set-up of the gun on the plain back of the Chi-Ha. On top of the fire rate of 2 shells per minute, this would take a massive toll once in actual combat.


The first test took place in April of 1945 on mobility and firing. 30 shots were fired at varying distances with upgraded cannon sights, with the longest shot during the test being around 3 km. No discrete information about penetration capabilities were recorded or made it to the post-war reports.

While production plans were approved, no further vehicles beyond the prototype were recorded as being built or near completion by the end of the war.

The prototype recorded by the US was found with the Yokosuka 15th unit and is the only footage on said vehicle.


This curious prototype of a self-propelled gun was discovered in the territory of the Yokosuka naval base after Imperial Japan surrendered in WWII. The 120mm naval gun was installed on a turntable mounted to the chassis of a Type 97 Chi-Ha medium tank. It was obvious, that the self-propelled gun was assembled in a rush - the high losses of Japan in the final stages of WWII and a shortage of military production forced the army and naval commands to look for any way to protect the island metropolia of the Empire from the threat of an Allied landing.

The self-propelled gun did not have any protection, the large calibre of the cannon and the weak platform of the medium tank presupposed firing mainly direct fire and in the rather limited arcs of forward and backward to avoid overturning due to the heavy recoil. Despite all these shortcomings, such vehicles were supposed to go into series for rapid deployment in dangerous sectors of the coastal defense line for the Japanese islands and firing at a line-of-sight distance at approaching enemy forces.



See also

Related Development
Tanks of comparable role, configuration and era

External links

Japan tank destroyers
Based on Ro-Go  Ro-Go Exp.
Based on Chi-Ha  Ho-Ni I · Ho-Ni III · Ho-Ro · Chi-Ha LG
Based on Ho-Ki  Na-To
Ho-Ri  Ho-Ri Prototype · Ho-Ri Production
Post-war  Type 60 SPRG (C) · Type 60 ATM · Type 75 MLRS · Type 75 SPH