40 mm/62 Vickers (40 mm)

The 40 mm Vickers used on Type K-3 No.1 firing at a close range naval target

Description

The 40 mm/62 Vickers, also known as the 40 mm/62 Bi-Shiki, is a Japanese naval anti-aircraft gun. It is a derivative of the 40 mm 2pdr QF Mk.IIc, imported and later produced under license. It appears in both single and twin mounts, and has a 50-round magazine and access to a timed fuse HE round.

Vehicles equipped with this weapon

• Type K-3 No.1
• Type K-7 No.4
• IJN Hatsuharu
• IJN Yuudachi

General info

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

Available ammunition

• Universal: HEF · APHE · HEF · APHE
• 40 mm HE clips: HEF · HEF · HEF · APHE
• 40 mm AP clips: APHE · APHE · APHE · HEF- Armour piercing shells, good at damaging interior modules and armoured ships
• 40 mm HE-TF clips: HE-TF · HE-TF · HE-TF · HE-TF- Dual-fuse HE shells, meaning they are effective against both boats and aircraft, generally superior to the HEF clip

Penetration statistics
Ammunition	Penetration @ 0° Angle of Attack (mm)
	10 m	100 m	500 m	1,000 m	1,500 m	2,000 m
APHE	36	35	29	22	18	14
HEF	3	3	3	3	3	3
HE-TF	3	3	3	3	3	3

Shell details
Ammunition	Velocity (m/s)	Projectile mass (kg)	Fuse delay (m)	Fuse sensitivity (mm)	Explosive mass (TNT equivalent) (g)	Ricochet
						0%	50%	100%
APHE	600	0.78	1	3	23	47°	60°	65°
HEF	600	0.79	0	0.1	70	79°	80°	81°
HE-TF	600	0.79	0	0.1	70	79°	80°	81°

Comparison with analogues

• 2pdr QF Mk.IIc (40 mm) - The original Vickers 40 mm AA gun, this one fires shells at a much higher velocity, but lacks any fused shells, and a larger magazine at 56 rounds.
• 40 mm/39 Vickers-Terni mod.1915/1917 - Only equipped on large ships, this Italian pdr QF Mk.II has 25 rounds per magazine and only has access a single shell type, HE-TF. It also fires at a slightly higher velocity, but only has about half the explosive mass of the 40mm/62 Vickers.
• 40 mm/39 Vickers-Terni mod.1915/1917, Modif.1930 - A modernized variant of the above, this one has 50 round magazines, but only access to HEF shells, which like the Italian HE-TF, has less explosive mass and higher velocity.
• Bofors L/60 Mark 1 (40 mm) · Bofors L/60 Mark 2 (40 mm) · Bofors L/60 Mark 3 (40 mm) - The 40 mm Bofors has a much higher muzzle velocity, making it easier to aim and the ability to fire continuously, though it has a lower rate of fire.
• 37 mm/67 70-K - Soviet AA gun similar to the Bofors, has a higher muzzle velocity and lower rate of fire. Its HEF shells have a slightly lower explosive mass.
• 3.7 cm FlaK-Lafette C/36 - German AA gun, again similar to the Bofors. Has a higher rate of fire, but a much weaker HEF round.

Usage in battles

Describe the cannon/machine gun in the game - its distinctive features, tactics of usage against notable opponents. Please don't write a "guide" - do not impose a single point of view, but give the reader food for thought.

Pros and cons

Pros:

• HE-TF clip is effective against both aircraft and boats
• Good rate of fire

Cons:

• Low muzzle velocity
• Only 50 rounds in a magazine

History

A licensed-built version of the British 2pdr QF Mk.II "pom-poms", the 40 mm/62 Vickers was officially designated the "BI" Type 91 indicating that the licensed version began production in the year 2591 under the Imperial calendar (1931 under the Gregorian calendar). Importation of British "pom-poms" began in 1925 with 500 guns and 200 mountings being imported. Initially fed by 50 round belts, there was an unsuccessful attempt to increase the capacity to 100 round belts. They would be the standard Imperial Japanese Navy anti-aircraft gun until 1935 when the low muzzle velocity and short effective range led to a replacement being sought. Their search led them to the French Hotchkiss 25 mm AA gun which they adopted as the 25 mm/60 Type 96. That said, just about every Japanese ship made between 1925 and 1935 was armed with the Vickers "BI" Type 91.

Media

Excellent additions to the article would be video guides, screenshots from the game, and photos.

See also

Links to the articles on the War Thunder Wiki that you think will be useful for the reader, for example:

• reference to the article about the variant of the cannon/machine gun;
• references to approximate analogues by other nations and research trees.

External links

Paste links to sources and external resources, such as:

• topic on the official game forum;
• other literature.

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)