Type 4 (37 mm)

Description

The 37 mm Type 4 is a naval derivative of the 37 mm Type 94 currently found on the Type 4 anti-submarine motor gun boats.

Vehicles equipped with this weapon

General info

Tell us about the tactical and technical characteristics of the cannon or machine gun.

Available ammunition

The 37 mm Type 4 has a choice of 2 shells, HE and APHE

HE - Has good explosive mass for its calibre, but usually can't damage interior modules
APHE - Low explosive mass, but can penetrate and damage interior modules in ships

Penetration statistics
Ammunition	Type of warhead	Penetration @ 0° Angle of Attack (mm)
Ammunition	Type of warhead	10 m	100 m	500 m	1,000 m	1,500 m	2,000 m
37 mm HE	HE	3	3	3	3	3	3
37 mm APHE	APHE	47	45	37	29	23	18

Shell details
Ammunition	Type of warhead	Velocity (m/s)	Projectile mass (kg)	Fuse delay (m)	Fuse sensitivity (mm)	Explosive mass (TNT equivalent) (g)	Ricochet
Ammunition	Type of warhead	Velocity (m/s)	Projectile mass (kg)	Fuse delay (m)	Fuse sensitivity (mm)	Explosive mass (TNT equivalent) (g)	0%	50%	100%
37 mm HE	HE	677	0.65	0	0.1	69.3	79°	80°	81°
37 mm APHE	APHE	662	0.7	1	3	11	47°	60°	65°

Comparison with analogues

45 mm/46 21-K · 45 mm/68 21-KM - Soviet single-shot cannons, generally superior in every way, having higher muzzle velocity, stronger shells, and the same reload speed, only worse in traverse speed, being about half as slow to aim.
3 pdr QF Hotchkiss (47 mm) - British single-shot cannon, has about double the explosive mass for its HE shell and the same reload speed, but has no access to any armour-piercing ammunition and has a lower muzzle velocity.

Usage in battles

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Pros and cons

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Pros:

Fairly accurate gun
Fast traverse speeds

Cons:

Low rate of fire and single shot
Individual rounds do little damage
Low muzzle velocity

History

A variant of the 37 mm Type 98 tank cannon (itself a derivative of the 37 mm Type 94 gun), the Type 4 was designed in 1943 for mounting on the Type 3 transport submarines. In order to prevent rust, every part was plated in chromium, and waterproof plugs and drain holes installed. In 1944, an anti-aircraft mount was devised for the weapon, mounted on some Daihatsu-class landing crafts. ^[1]

Media

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External links

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topic on the official game forum;
other literature.

References

↑ Type 98 37 mm tank gun - Derived types (in Japanese)

Japan naval cannons
20 mm	JM61 · Type 98
25 mm	25 mm/60 Type 96
37 mm	Type 4 · Type 11 pattern 1922
40 mm	40 mm/62 Vickers
57 mm	Type 97
75 mm	Type 88 AA
76 mm	3-inch/40 Type 41 · 8 cm/40 3rd Year Type · 8 cm/60 Type 98
100 mm	100/65 mm Type 98 mod A
120 mm	120 mm/45 3rd Year Type · 120 mm/45 10th year type
127 mm	5 inch/40 Type 89 · 127 mm/50 3rd Year Type
140 mm	140 mm/50 3rd Year Type
152 mm	6-inch/45 Type 41 · 15 cm/50 Type 41
155 mm	155 mm/60 3rd Year Type
200 mm	20 cm 3rd year type No.1
203 mm	20 cm/45 Type 41 · 20 cm/50 3rd year type No.2
356 mm	36 cm/45 Type 41
410 mm	410 mm/45 Type 3
	Foreign:
20 mm	20 mm/70 Oerlikon Mk.II ^{(USA/Britain)}
40 mm	Bofors L/60 Mark 1 ^(USA) · Bofors L/60 Mark 2 ^(USA) · Bofors L/60 Mark 3 ^(USA)
47 mm	3 pdr QF Hotchkiss ^(Britain)
76 mm	3-inch Mark 10 ^(USA) · 3 inch Mk.33 ^(USA) · 3-inch Mk.34 ^(USA)
120 mm	4,7-inch/40 Armstrong ^(Britain)
127 mm	5 inch/38 Mk.12 ^(USA)
305 mm	12-inch/45 Vickers ^(Britain) · 12-inch/50 Vickers ^(Britain)

[1] Type 98 37 mm tank gun - Derived types (in Japanese)

[1]