Chi-Nu

This page is about the Japanese medium tank Chi-Nu. For the premium version, see Chi-Nu II.

Chi-Nu

Chi-He

Chi-To

Chi-Nu

Chi-He

Chi-To

Japan

III Rank

Battle rating:

AB	RB	SB
3.3	3.3	3.3

Class:

Medium tank

Research:18 000

Purchase:47 000

Show in game

Description

The Type 3 Chi-Nu (三式中戦車 「チヌ」) was built as a stop-gap measure in the pursuit to get M4 Sherman-killers such as the Chi-To & Chi-Ri II which still were being developed. The Japanese tank designers simply opted for the Chi-He hull, uplift the Type 90 (75 mm) field gun as a dedicated tank gun as the Type 3 (75 mm) tank gun and create a new hexagonal turret to house the cannon on the hull. With Japanese tank production having low priority and the Chi-Nu being greenlit in 1943, production only started in 1944 and were all reserved for the defense of the mainland.

The Type 3 Chi-Nu was introduced in Update 1.65 "Way of the Samurai" along with the initial Japanese Ground Forces Tree. It provides adequate protection, good firepower, and good mobility, all traits well known in the medium tank categories. The previous Japanese mediums suffer from underpowered guns or tiny calibre size, but the Chi-Nu's 75 mm gun is powerful enough to deal with its contemporaries with a single shot. The playstyle of this tank can be like any medium tank, giving the Chi-Nu the flexibility to be part of an assault force or a flanking role to support the main assault.

General info

Survivability and armour

Armourfront / side / back

Hull50 / 25 / 20

Turret50 / 25 / 25

Crew5 people

Visibility88 %

Armour type:

• Rolled homogeneous armour
• Cast homogeneous armour (Gun mantlet)

Armour	Front	Sides	Rear	Roof
Hull	50 mm (15°) Front plate 12 mm (76°) Front glacis 50 mm (20°) Joint plate 8.5 mm (65°) Lower glacis	20 mm (15-30°) Top 25 mm Bottom	20 mm (0-20°) Top 8.5 mm (63°) Bottom	12 mm
Turret	50 mm (15°) Turret front 50 mm (11-49°) Gun mantlet	25 mm (9-10°)	25 mm	12 mm
Cupola	50 mm	50 mm	50 mm	12 mm

Notes:

• Suspension wheels are 15 mm thick while tracks are 20 mm thick.

Mobility

Speedforward / back

AB44 / 9 km/h

RB and SB39 / 8 km/h

Number of gears8 forward

2 back

Weight18.8 t

Engine power

AB458 hp

RB and SB240 hp

Power-to-weight ratio

AB24.4 hp/t

RB and SB12.8 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	9	18.8	372	458	19.79	24.36
Realistic	39	8		212	240	11.28	12.77

Modifications and economy

Repair costBasic → Reference

AB990 → 1 274

RB1 133 → 1 458

SB1 421 → 1 828

Total cost of modifications19 800

32 300

Talisman cost980

Crew training13 000

Experts47 000

Aces330

Research Aces280 000

Reward for battleAB / RB / SB

60 / 90 / 110 %

136 / 136 / 136 %

Modifications

Mobility	Protection	Firepower
Tracks Research: 1 300 Cost: 2 100 115 Suspension Research: 1 100 Cost: 1 800 95 Brake System Research: 1 100 Cost: 1 800 95 Filters Research: 1 700 Cost: 2 800 150 Transmission Research: 1 600 Cost: 2 600 140 Engine Research: 1 600 Cost: 2 600 140	Improved Parts Research: 1 300 Cost: 2 100 115 Improved FPE Research: 1 100 Cost: 1 800 95 Crew Replenishment Research: 1 700 Cost: 2 800 150	Horizontal Drive Research: 1 300 Cost: 2 100 115 Adjustment of Fire Research: 1 100 Cost: 1 800 95 Elevation Mechanism Research: 1 700 Cost: 2 800 150 Artillery Support Research: 1 600 Cost: 2 600 140 75mm_jp_Smoke_ammo_pack Research: 1 600 Cost: 2 600 140

Armaments

Main armament

75 mm Type 3 cannon

Ammunition55 rounds

Reloadbasic crew → aces

7.8 → 6.0 s

Vertical guidance-10° / 20°

75 mm Type 3					Turret rotation speed (°/s)					Reloading rate (seconds)
Mode	Capacity	Vertical	Horizontal	Stabilizer	Stock	Upgraded	Full	Expert	Aced	Stock	Full	Expert	Aced
Arcade	55	-10°/+20°	±180°	N/A	9.90	13.70	16.64	18.41	19.58	7.80	6.90	6.36	6.00
Realistic					6.19	7.28	8.84	9.78	10.40

Ammunition

Penetration statistics
Ammunition	Type of warhead	Penetration @ 0° Angle of Attack (mm)
		10 m	100 m	500 m	1,000 m	1,500 m	2,000 m
Type 1 APHE	APHE	103	101	92	82	73	65
Type 94 HE	HE	12	12	12	12	12	12

Shell details
Ammunition	Type of warhead	Velocity (m/s)	Projectile mass (kg)	Fuse delay (m)	Fuse sensitivity (mm)	Explosive mass (TNT equivalent) (g)	Ricochet
							0%	50%	100%
Type 1 APHE	APHE	668	6.56	1.3	15	84.8	47°	60°	65°
Type 94 HE	HE	522	6.02	0	0.1	810	79°	80°	81°

Smoke shell characteristics
Ammunition	Velocity (m/s)	Projectile mass (kg)	Screen radius (m)	Screen deploy time (s)	Screen hold time (s)	Explosive mass (TNT equivalent) (g)
Type 90 Smoke	570	5.72	13	5	20	100

Ammo racks

Ammo racks of the Chi-Nu

Full ammo	1st rack empty	2nd rack empty	3rd rack empty	Visual discrepancy
55	20 (+35)	6 (+49)	1 (+54)	No

Note:

• Turret empty: 20 (+35)

Machine guns

7.7 mm Type 97 machine gun (coaxial)

Ammunition3 000 rounds

Belt capacity20 rounds

Reloadbasic crew → aces

3.9 → 3.0 s

Fire rate499 shots/min

7.7 mm Type 97 machine gun

Ammunition1 000 rounds

Belt capacity20 rounds

Reloadbasic crew → aces

3.9 → 3.0 s

Fire rate499 shots/min

7.7 mm Type 97
Mount	Capacity (Belt)	Fire rate	Vertical	Horizontal
Pintle	1,000 (20)	498	-10°/+70°	±60°
Hull	3,000 (20)	498	-7°/+10°	±19°

Usage in battles

This tank can be played in a similar fashion to the Pz.IV F2. Using its good mobility and excellent gun, the Chi-Nu can hit enemies at medium/ long range from a position of cover, steadily advancing towards the enemy lines. The frontal armour is stronger than a Pz.IV F2 (same thickness, more slope), but is still weak and will not protect the Chi-Nu from most guns at BR 3.3. The side armour is particularly weak, so be careful of flank attacks.

The 75 mm gun can be more closely compared to the F-34 gun used by the T-34 when using the BR-350B round. It has high post-penetration damage and just under 100 mm maximum penetration. However, no access to APCR or other high penetration rounds means the Chi-Nu is going to struggle fighting vehicles like the KV-1. These should be retreated from or flanked. Sherman tanks and T-34s may also present a problem from the front.

The Type 3 Chi-Nu has many adversaries that may be difficult to overcome, which is not helped by the tank's lacking ammo variety. The only piercing ammo available is the Type 1 APHE, which still has reasonable penetration and great explosive filler, but requires the knowledge of extremely specific weaknesses in order to take down certain foes.

Pretty much any heavy tank can give the Chi-Nu a run for its silver lions. The Chi-Nu cannot penetrate the KV-1 (L-11) from the front at all, and struggles against other vehicles like the Churchill I or Gun Carrier (3-in). The Churchill Gun Carrier has a small weak spot on the front of the tank - a viewport that can be penetrated and knock out the entire vehicle - but it is very difficult to hit, not to mention extremely dangerous. These tanks can be dealt with by shooting their sides, but that is not the case with the KV-1. In order to penetrate the KV-1 with the Chi-Nu, it is required to shoot the tank in the back of the turret ring. This incredibly specific weak spot - beneath the turret bustle on the back of the tank - is the only place where the Chi-Nu can penetrate the KV-1. Thankfully, shooting here results in a knock-out.

Tanks like the M4 Sherman and M4A1 Sherman can also be difficult to deal with from the front. It is best advised to hit those tanks around from the side or at close range. Try to aim for the centre of the M4A1 Sherman's frontal plate at close-medium range, about 15-50 m.

Most T-34 series tanks can be dealt with quite easily, but for the most part it is recommended to shoot the turret instead of the frontal plate. This plate can be tricky to deal with for the Chi-Nu, so to cut the risk of a bounce altogether it's better to just shoot the turret and incapacitate the offensive capabilities of the tank, then move in for another shot.

Pros and cons

Pros:

• 75 mm gun is adequate and quite powerful
• 75 mm shell slow drop-off, accurate in longer range
• Good mobility
• Low profile
• Narrow chassis allows access through areas inaccessible by wider tanks

Cons:

• Max frontal armour is about 50 mm and not very sloped
• Turret front is rather flat sloped
• Machine gun armament is restricted to front
• Turret traverse is rather slow, even when upgraded
• Cupola on the turret top is rather prominent and can be shot
• Removing all ammo from turret leaves little in reserves

History

Development

Chi-Nu production line

By 1943, the tanks of the Imperial Japanese Army like the Type 95 Ha-Go and Type 97 Chi-Ha plus its improved variant were deemed to be falling behind in terms of modernizing tank designs of the American and European counterparts. This came to attention when their contact in Germany gave them information on the new Allied tanks like the American M4 Sherman. A tank able to fight these newer machines was needed, but development takes time and resources that the IJA tank industry do not have a surplus of. Eventually, an expedient was ordered as a dedicated new design was developed. The expedient was to use a modified Type 90 75 mm field gun, a gun already proven to be effective against Allied tanks during the Philippines campaign, by adapting the gun into the Type 3 (75 mm) in models I and II. The model I went onto the Type 1 Ho-Ni III and the model II went to the tank design.

The concept of the tank was made in 1943, but development would not start until May 1944. It was based off a modified Type 1 medium tank chassis, with the only major change being a larger turret ring to accommodate the initial turret design of the Chi-Ri I prototype. This expedient was accepted and designated the Type 3 Chi-Nu. The tank was to begin production in September 1944, but the escalation of American bombing of the Japanese homeland from late 1944 onwards caused massive destruction of the already-weak Japanese industry. Thus by the end of the war, between 144 to 166 Type 3 Chi-Nu tanks were produced.

Combat usage

Chi-Nu being maintained

Though the Type 3 Chi-Nu were one of the more powerful tanks churned out of Japan's production lines in World War II, the produced Type 3 Chi-Nu were not sent out to reinforce Japanese forces on the Pacific islands. Instead, they were retained on the home islands as reserves for the defense of Japan against a possible Allied invasion of Japan. However, with the Allied decision to bomb Japan with nuclear weapons and a massive Soviet invasion of Manchuria, Japan surrendered before their homeland was invaded, and with this means the Type 3 Chi-Nu never saw combat in World War II. Many of the tanks were decommissioned with the demilitarization of Japan and were scrapped by the American occupation forces. Currently, the only surviving Type 3 Chi-Nu remains at the JGSDF Military Ordnance Training School.

Media

Skins

• Skins and camouflages for the Chi-Nu from live.warthunder.com.

Images

• 

  Type 3 Chi-Nu & Type 89 I-Go on display, The first and last Japanese Army production medium tank.

• 

Videos

Chi-Nu - Tank Review - Napalmratte

See also

Related development

• Type 97 Chi-Ha (Family)
• Type 1 Chi-He (Family)
• Type 3 Chi-Nu II

Other vehicles of similar configuration and role

• Pz.IV (Family) - (Late models)
• Turan III
• P26/40
• T-34 (Family) - (Early models)
• M4A1
• Cromwell V
• Valentine XI / IX
• Pvkv IV

External links

• [Devblog] Type 3 Chi-Nu: Last Line of Defense

References

Mitsubishi Heavy Industries (三菱重工業株式会社)
Light Tanks
Type 95	Ha-Go · Ha-Go Commander
Medium Tanks
Type 89	I-Go Ko
Type 97	Chi-Ha · Chi-Ha Kai
Type 1	Chi-He · Chi-He (5th Regiment)
Type 3	Chi-Nu · Chi-Nu II
Type 4	Chi-To · Chi-To Late
Type 5	Chi-Ri II
SPGs
Chi-Ha Derived	Ho-Ro
Chi-He Derived	Ho-I
Chi-Ri Derived	Ho-Ri Prototype · Ho-Ri Production
Other	Na-To · Ro-Go Exp.
Captured	␗Chi-Ha · ␗Chi-Ha Kai
Note	Most tank designs would be contracted by the Army Technical Bureau to Mitsubishi
See also	Mitsubishi Heavy Industries Ltd. (Post-War)