120 mm/45 10th year type (120 mm)

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A 120 mm/45 10th year type on Syonan

Description

The 120 mm/45 10th year type is a Japanese naval gun found mostly as a secondary weapon on cruisers, but it also the primary weapon on a gunboat and tank destroyer. It is nearly identical to the 120 mm/45 3rd Year Type from which it is based on, but it lacks a SAP shell.

Vehicles equipped with this weapon

Ground vehicles
Naval vessels

General info

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

Available ammunition

Ground vehicles

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
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
warhead 		Velocity
(m/s) 		Projectile
mass (kg) 		Fuse delay
(m) 		Fuse sensitivity
(mm) 		Explosive mass
(TNT equivalent) (kg) 		Ricochet
0% 50% 100%
Ordinary, Mod.1 HE 825 20.4 0.3 0.1 1.97 79° 80° 81°
C.P.(BF) SAPCBC 825 20.4 1.2 19 1.87 48° 63° 71°
Naval vessels

Penetration statistics
Ammunition Type of
warhead 		Penetration @ 0° Angle of Attack (mm)
1,000 m 2,500 m 5,000 m 7,500 m 10,000 m 15,000 m
120 mm Type 1 HE HE 24 24 24 24 24 24
120 mm Type 0 HE HE-TF 24 24 24 24 24 24
Shell details
Ammunition Type of
warhead 		Velocity
(m/s) 		Projectile
mass (kg) 		Fuse delay
(s) 		Fuse sensitivity
(mm) 		Explosive mass
(TNT equivalent) (kg) 		Ricochet
0% 50% 100%
120 mm Type 1 HE HE 850 20.33 0 0.1 1.95 79° 80° 81°
120 mm Type 0 HE HE-TF 850 20.33 0 0.1 1.95 79° 80° 81°

Comparison with analogues

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Usage in battles

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Pros and cons

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Pros:

Cons:

History

The 120 mm/45-calibre 10th Year Type is an Imperial Japanese Navy anti-aircraft gun based on the design of the earlier 120 mm/45 3rd Year Type. Development of the design for a high-angle anti-aircraft gun based on this design began in 1921, but it was only formally accepted into service in 1927 which led to the designation the 10th Year Type (1927 was the 10th year of Emperor Taishō's reign). The gun was mounted as an anti-aircraft on a number of cruisers and aircraft carriers as Japan began to build its navy to face the United States for dominance of the Pacific. While some aircraft carriers such as the Akagi, which continued to mount these guns until it was sunk at Midway in June 1942, were mounted with these guns from the start, others such as the Furataka-class and Aoba-class cruisers were refitted with these guns during fleet modernization in the 1930s, while the experimental Yubari light cruiser was refitted to use one in early 1944. The modernized cruisers and the Kaga aircraft carrier would later have another refit with 127 mm/40 Type 89 guns, but other ships would use them until the end of the war.

Considered to be an excellent weapon, the 10th Year Type was tested with a Type 89 HA computer fire control system in 1931 on Myôkô-class aircraft carriers and found to have 2.2% accuracy against targets flying at speeds of 60 to 70 knots at 4,900 and 6,600 feet altitude. The guns were later mounted as a dual-purpose coastal defense in the Pacific Theatre of World War II. The gun was also mounted backward on the chassis of the Type 97 Chi-Ha for the Special Naval Landing Forces of the Imperial Japanese Navy creating the Chi-Ha Long Gun which was tested at the SNLF base in Yokosuka.

Media

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See also

External links

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


Japan tank cannons
37 mm  Type 94 · Type 100 · Type 1
47 mm  Type 1
57 mm  Type 90 · Type 97
70 mm  Type 94
75 mm  Type 90 · Type 99 · Type 3 · Type 5 (Type I Model II · Type II Model I · Type II Model II)
90 mm  Type 61
105 mm  Type 5 (Experimental · Production) · JSW L/52
106 mm  Type 60 (B)
120 mm  Taishō Type 10 · Navy short gun · Type 90 L/44 · Type 10 L/44
150 mm  Type 38
155 mm  NSJ L/30 · JSW L/52
  Foreign:
25 mm  Oerlikon KBA B02 (Switzerland)
30 mm  Bushmaster 2 Mk.44 (USA)
35 mm  Oerlikon KDE (Switzerland)
75 mm  M6 (USA)
76 mm  M1 (USA) · M32 (USA)
88 mm  KwK36 (Germany)
90 mm  M3A1 (USA) · M36 (USA)
105 mm  L7A3 (Germany)
120 mm  Schneider-Canet 1898 (France)

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)

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