Difference between revisions of "15 cm/50 Type 41 (152 mm)"

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== Description ==
 
== Description ==
−
''Write an introduction to the article in 2-3 small paragraphs. Briefly tell us about the history of the development and combat using the weaponry and also about its features. Compile a list of air, ground, or naval vehicles that feature this weapon system in the game.''
+
<!-- ''Write an introduction to the article in 2-3 small paragraphs. Briefly tell us about the history of the development and combat using the weaponry and also about its features. Compile a list of air, ground, or naval vehicles that feature this weapon system in the game.'' -->
 +
[[File:15 cm 50 Type 41 (152 mm).jpg|thumb|right|15 cm/50 Type 41 in a single-mount secondaries]]
 +
The '''152 mm 15 cm/50 Type 41''' is a Japanese high-calibre gun found as a primary weapon in twin-turrets on the [[IJN Agano|Agano]] and a secondary single-mount casemate gun on [[Kongo (Family)|Kongo-class]] battleships. Historically it was a family of weapons originally designed by British Vickers, then redesigned for production in Japan in 1908. Aside from the aforementioned ships, the guns were also used on the Fusō-class battleships and as coastal defenses on Guam.
  
 
=== Vehicles equipped with this weapon ===
 
=== Vehicles equipped with this weapon ===
 
<!-- ''List out vehicles that are equipped with the weapon.'' -->
 
<!-- ''List out vehicles that are equipped with the weapon.'' -->
 +
 
* {{Specs-Link|jp_cruiser_agano}}
 
* {{Specs-Link|jp_cruiser_agano}}
 +
* {{Specs-Link|jp_battlecruiser_kongo}}
 +
* {{Specs-Link|jp_battlecruiser_haruna}}
 +
* {{Specs-Link|jp_battleship_fuso}}
 +
* {{Specs-Link|jp_battleship_yamashiro}}
  
 
== General info ==
 
== General info ==
−
''Tell us about the tactical and technical characteristics of the cannon or machine gun.''
+
<!-- ''Tell us about the tactical and technical characteristics of the cannon or machine gun.'' -->
 +
[[File:15 cm 50 Type 41 (152 mm) twin turrets.jpg|thumb|right|and the dual-mount primaries]]
 +
The Type 41 is a typical weapon for a cruiser, featuring a good mix of calibre, rate of fire, and the overall physical dimensions of the gun. It makes it suitable for engaging targets at a long range and directly countering destroyers. The key highlight is its SAP shells.
  
 
=== Available ammunition ===
 
=== Available ammunition ===
−
''Describe the shells that are available for the weapon and their features and purpose. If it concerns autocannons or machine guns, write about different ammo belts and what is inside (which types of shells).''
+
<!-- ''Describe the shells that are available for the weapon and their features and purpose. If it concerns autocannons or machine guns, write about different ammo belts and what is inside (which types of shells).'' -->
 +
 
 +
Both HE and SAP shells are sufficient to defeat armour on any destroyer or a coastal unit, while SAP shells will struggle only with some of the reinforced points on the heavy cruisers or larger warships. The key advantage of SAP shells is their explosion after 8.5 m, making them suitable for dealing with enemy destroyers without switching shells to HE. Given that SAP shells have nearly the same explosive filler as HE - using HE is extremely situational and SAP is superior in nearly all circumstances.
 +
 
 +
HE-TF shells are available only on the twin-gun turrets of [[IJN Agano]], as these turrets have a significantly increased vertical guidance and targetting speed, making it possible to engage aerial targets.
 +
 
 +
{{:{{PAGENAME}}/Ammunition|152 mm Type 0 HE, 152 mm Type 0 HE-TF, 152 mm Type 4 SAP}}
  
 
=== Comparison with analogues ===
 
=== Comparison with analogues ===
−
''Give a comparative description of cannons/machine guns that have firepower equal to this weapon.''
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<!-- ''Give a comparative description of cannons/machine guns that have firepower equal to this weapon.'' -->
 +
[[File:15 cm 50 Type 41 (152 mm) Agano firing.jpg|thumb|right|[[IJN Agano]] engaging enemy warship with the SAP shells]]
 +
The gun is featured in two configurations: single and dual-mount, with single-mount having a much higher rate of fire, increasing from 6.2 shots/minute to 10 shots/minute, a 60% increase.
 +
 
 +
The biggest pain point are its dated shells. {{Annotation|HE|High-explosive}} shells have a low amount of explosive filler. {{Annotation|SAP|Semi armour-piercing}} rounds have a low penetration among the shells of the type, their explosive filler is relatively large, but in both statistics, it's worse than the Soviet [[152 mm/57 B-38 (152 mm)]].
 +
 
 +
And while the single-mount weapon trades these disadvantages for a high rate of fire, the same cannot be said for the dual-mount. Still, it does have some key advantages: high elevation angles, a fast horizontal guidance speed and an added {{Annotation|HE-TF|High-explosive with time fuze}} shell (even if it has a small explosive filler).
 +
 
 +
It's also worth mentioning that the muzzle velocity is relatively low compared to its peers, however, it's perfectly adequate, and both: lower and higher calibre guns commonly feature lower muzzle velocities.
 +
 
 +
==== HE ====
 +
{| class="wikitable sortable" style="text-align:center" width="100%"
 +
|-
 +
! colspan="2" rowspan="2" |Cannon
 +
! rowspan="2" |Sample Ship
 +
! rowspan="2" |Ammo
 +
! rowspan="2" |Calibre<br>(mm)
 +
! rowspan="2" |Muzzle Velocity<br>(m/s)
 +
! rowspan="2" |Sustained rate of fire<br>(rounds/min)
 +
! colspan="2" |Targeting speed<br>(°/s)
 +
! rowspan="2" |TNT Equivalent<br>(kg)
 +
! colspan="3" |Penetration<br>@ 0° Angle of Attack (mm)
 +
|-
 +
!Horizontal!!Vertical!!1,000 m!!5,000 m!!10,000 m
 +
|-
 +
|[[File:Japan flag.png|link=|25x25px]]
 +
| 15 cm/50 Type 41 (152&nbsp;mm)
 +
| [[IJN Agano]] || HE || 152 || 850 || 6.2 || 10 || 6 || 3.17 || 35 || 35 || 35
 +
|-
 +
|[[File:Japan flag.png|link=|25x25px]]
 +
| 15 cm/50 Type 41 (152&nbsp;mm)
 +
| [[IJN Kongo]] || HE || 152 || 850 || 10 || 4.2 || 4.2 || 3.17 || 35 || 35 || 35
 +
|-
 +
|[[File:Japan flag.png|link=|25x25px]]
 +
| [[6-inch/45 Type 41 (152 mm)]]
 +
| [[IJN Settsu]] || HE || 152 || 825 || 5 || 4.2 || 4.2 || 5.28 || 43 || 43 || 43
 +
|-
 +
|[[File:USA flag.png|link=|25x25px]]
 +
| [[6 inch/53 Mk.12 (152 mm)]]
 +
| [[USS Raleigh]] || HE || 152 || 914 || 6 || 6.8 || 6 || 5.88 || 49 || 49 || 49
 +
|-
 +
|[[File:Britain flag.png|link=|25x25px]]
 +
| [[6 inch/50 BL Mark XXIII (152 mm)]]
 +
| [[HMNZS Leander]] || HE || 152 || 841 || 8 || 6.0 || 8.5 || 3.96 || 37 || 37 || 37
 +
|-
 +
|[[File:Italy flag.png|link=|25x25px]]
 +
| [[152/53 mm O.T.O. Mod.1929 (152 mm)]]
 +
| [[RN Raimondo Montecuccoli]] || HE || 152 || 935 || 8 || 5.1 || 4.2 || 2.39 || 29 || 29 || 29
 +
|-
 +
|[[File:USSR flag.png|link=|25x25px]]
 +
| [[152 mm/57 B-38 (152 mm)]]
 +
| [[Sverdlov]] || HE || 152 || 950 || 7.5 || 6.1 || 11 || 6 || 50 || 50 || 50
 +
|-
 +
|}
 +
==== SAP ====
 +
{| class="wikitable sortable" style="text-align:center" width="100%"
 +
|-
 +
! colspan="2" rowspan="2" |Cannon
 +
! rowspan="2" |Sample Ship
 +
! rowspan="2" |Ammo
 +
! rowspan="2" |Calibre<br>(mm)
 +
! rowspan="2" |Muzzle Velocity<br>(m/s)
 +
! rowspan="2" |Sustained rate of fire<br>(rounds/min)
 +
! colspan="2" |Targeting speed<br>(°/s)
 +
! rowspan="2" |TNT Equivalent<br>(kg)
 +
! colspan="3" |Penetration<br>@ 0° Angle of Attack (mm)
 +
|-
 +
!Horizontal!!Vertical!!1,000 m!!5,000 m!!10,000 m
 +
|-
 +
|[[File:Japan flag.png|link=|25x25px]]
 +
| 15 cm/50 Type 41 (152&nbsp;mm)
 +
| [[IJN Agano]] || SAP || 152 || 850 || 6.2 || 10 || 6 || 2.92 || 81 || 52 || 34
 +
|-
 +
|[[File:Japan flag.png|link=|25x25px]]
 +
| 15 cm/50 Type 41 (152&nbsp;mm)
 +
| [[IJN Kongo]] || SAP || 152 || 850 || 10 || 4.2 || 4.2 || 2.92 || 81 || 52 || 34
 +
|-
 +
|[[File:USA flag.png|link=|25x25px]]
 +
| [[6 inch/53 Mk.12 (152 mm)]]
 +
| [[USS Raleigh]] || SAP || 152 || 914 || 6 || 6.8 || 6 || 0.997 || 210 || 138 || 85
 +
|-
 +
|[[File:Britain flag.png|link=|25x25px]]
 +
| [[6 inch/50 BL Mark XXIII (152 mm)]]
 +
| [[HMNZS Leander]] || SAPBC || 152 || 841 || 8 || 6.0 || 8.5 || 1.7 || 197 || 137 || 90
 +
|-
 +
|[[File:USSR flag.png|link=|25x25px]]
 +
| [[152 mm/57 B-38 (152 mm)]]
 +
| [[Sverdlov]] || SAP || 152 || 950 || 7.5 || 6.1 || 11 || 5.9 || 172 || 117 || 74
 +
|-
 +
|}
 +
==== HE-TF ====
 +
{| class="wikitable sortable" style="text-align:center" width="100%"
 +
|-
 +
! colspan="2" rowspan="2" |Cannon
 +
! rowspan="2" |Sample Ship
 +
! rowspan="2" |Ammo
 +
! rowspan="2" |Calibre<br>(mm)
 +
! rowspan="2" |Muzzle Velocity<br>(m/s)
 +
! rowspan="2" |Sustained rate of fire<br>(rounds/min)
 +
! colspan="2" |Targeting speed<br>(°/s)
 +
! rowspan="2" |TNT Equivalent<br>(kg)
 +
! colspan="3" |Penetration<br>@ 0° Angle of Attack (mm)
 +
|-
 +
!Horizontal!!Vertical!!1,000 m!!5,000 m!!10,000 m
 +
|-
 +
|[[File:Japan flag.png|link=|25x25px]]
 +
| 15 cm/50 Type 41 (152&nbsp;mm)
 +
| [[IJN Agano]] || HE-TF || 152 || 850 || 6.2 || 10 || 6 || 3.17 || 35 || 35 || 35
 +
|-
 +
|[[File:Britain flag.png|link=|25x25px]]
 +
| [[6 inch/50 BL Mark XXIII (152 mm)]]
 +
| [[HMNZS Leander]] || HE-TF || 152 || 841 || 8 || 6.0 || 8.5 || 3.96 || 37 || 37 || 37
 +
|-
 +
|[[File:Italy flag.png|link=|25x25px]]
 +
| [[152/53 mm O.T.O. Mod.1929 (152 mm)]]
 +
| [[RN Raimondo Montecuccoli]] || HE-TF || 152 || 935 || 8 || 5.1 || 4.2 || 2.39 || 29 || 29 || 29
 +
|-
 +
|[[File:USSR flag.png|link=|25x25px]]
 +
| [[152 mm/57 B-38 (152 mm)]]
 +
| [[Sverdlov]] || HE-TF || 152 || 950 || 7.5 || 6.1 || 11 || 6.56 || 53 || 53 || 53
 +
|-
 +
|}
  
 
== Usage in battles ==
 
== 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.''
+
<!--
 +
''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.'' -->
 +
[[File:15 cm 50 Type 41 (152 mm) Kongo firing.jpg|thumb|right|[[IJN Kongo]] secondaries firing a full broadside at the enemy destroyer while the main guns are reloading]]
 +
The weapon can be found as both: a primary weapon on [[IJN Agano]] (firing 6 shells broadside every 9.7sec) and a secondary weapon on the [[Kongo (Family)|Kongo-class]] (firing 4 shells every 6 seconds). In terms of TNT equivalent per minute for the HE shells, this translates to 117,9 kg in Agano vs 126.8 kg in Kongo (or 95,1 kg/minute for the arcs where only Kongo's 3 guns can fire). So while at a first glance it might seem that the Type 41 as a secondary weapon is mostly just a filler, in reality, it can output as much damage as a cruiser.
  
 
=== Pros and cons ===
 
=== Pros and cons ===
−
''Summarise and briefly evaluate the weaponry in terms of its characteristics and combat effectiveness. Mark pros and cons as a list.''
+
<!-- ''Summarise and briefly evaluate the weaponry in terms of its characteristics and combat effectiveness. Mark pros and cons as a list.'' -->
  
 
'''Pros:'''
 
'''Pros:'''
−
*
+
 
 +
* Excellent SAP shell able to engage everything from a light cruiser to a motorboat
 +
* Single-mount version has an excellent rate of fire for the calibre, making it relatively easy to engage coastal units at a range
  
 
'''Cons:'''
 
'''Cons:'''
−
*
+
 
 +
* No dedicated armour-piercing shells make it difficult if not impossible to respond to the enemy heavy cruisers or battleships
 +
* Low explosive filler in the HE and HE-TF shells compared to the contemporary shells
 +
* Dual-mount version has a relatively slow fire rate and it's not compensated with more guns on a platform
  
 
== History ==
 
== History ==
−
''Examine the history of the creation and combat usage of the weapon in more detail than in the introduction. If the historical reference turns out to be too long, take it to a separate article, taking a link to the article about the weapon and adding a block "/ History" (example: <nowiki>https://wiki.warthunder.com/(Weapon-name)/History</nowiki>) and add a link to it here using the <code>main</code> template. Be sure to reference text and sources by using <code><nowiki><ref></ref></nowiki></code>, as well as adding them at the end of the article with <code><nowiki><references /></nowiki></code>.''
+
<!-- ''Examine the history of the creation and combat usage of the weapon in more detail than in the introduction. If the historical reference turns out to be too long, take it to a separate article, taking a link to the article about the weapon and adding a block "/History" (example: <nowiki>https://wiki.warthunder.com/(Weapon-name)/History</nowiki>) and add a link to it here using the <code>main</code> template. Be sure to reference text and sources by using <code><nowiki><ref></ref></nowiki></code>, as well as adding them at the end of the article with <code><nowiki><references /></nowiki></code>.'' -->
 +
The history of the 50 calibre 41st Year Type 15 cm Gun (50口径四十一式15cm砲) reaches the year 1908 (hence the "41st year" - 1908 in the Georgian calendar is the 41st year of Meiji era in Japanese dating) when the Imperial Japanese Navy adopted the redesigned 6"/50 Vickers guns that were to be used on the Kongō and Fusō-class. The redesign was done by the Kure Naval Arsenal engineer, Dr. Hata Chiyokichi (who will also design the [[155 mm/60 3rd Year Type (155 mm)|155 mm/60 3rd Year Type]]), changing the wire-wound construction to a three-layer [[wikipedia:Built-up gun|built-up]], making it cheaper to replace liners.
 +
 
 +
When the Kongō-class battlecruiser was laid down for construction by the Vickers Shipbuilding Company in North West England it received the British 6"/50 Vickers Mark M guns, but the designation was kept, and the subsequent ships of the class were built in Japanese shipyards received Japanese-built guns.
 +
 
 +
Once commissioned in 1913 the gun characteristics were praised, though it was found that the Japanese sailors struggled to manually load the 45.4 kg projectiles, as they were of a lighter build than their English colleagues. In effect, the real firing rate of the gun was only 6 rounds per minute, in contrast to 10 rounds per minute on the English ships, and as the crew grew tired it decreased even further.
 +
 
 +
When Agano-class was being designed in 1939 it was decided that the 15 cm/50 Type 41 will be used in specially designed mountings. In order to counter enemy light cruisers design was settled on a twin mount. Further improvements included electro-hydraulic slewing and elevation and an increase of the elevation angles from +30° to +55° - both changes were made with an ability to engage aircraft in mind, however, the new turrets were unable to effectively fire at these targets, as each gun had to be lowered down to +7° for the manual reloading of the shells (no automation could be introduced due to mass constraints). Another interesting quirk of these mounts was the fact that they were on a large, rotating mechanism, along with the 1st stage magazine below (hence why they're called mounts, rather than turrets). Shells were carried onto the contraption manually from the main magazine and then hoisted up to the gun housing. All of this was done to minimize the mass and size of the main artillery. As a result, the double-mount weighed only 72 tonnes, compared to 76 tonnes of two Fusō-style single-mounts.
 +
 
 +
In 1943 anti-submarine projectiles were provided for the guns on top of the existing Type 0 and Type 4 shells. These were longer, heavier projectiles with a blunt nose designed to form a cavity around the shell as it penetrated the water, enabling it to penetrate the submarine hull at the depth of 8 m.
  
 
== Media ==
 
== Media ==
−
''An excellent addition to the article would be a video guide, as well as screenshots from the game and photos.''
+
''Excellent additions to the article would be video guides, screenshots from the game, and photos.''
  
 
== See also ==
 
== See also ==
−
''Links to the articles on the War Thunder Wiki that you think will be useful for the reader, for example:''
+
<!-- ''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;''
 
* ''reference to the article about the variant of the cannon/machine gun;''
−
* ''references to approximate analogues by other nations and research trees.''
+
* ''references to approximate analogues by other nations and research trees.'' -->
 +
* [[6-inch/45 Type 41 (152 mm)]]
 +
* [[6 inch/45 BL Mark VII (152 mm)]]
 +
* [[6 inch/45 BL Mark XII (152 mm)]]
 +
* [[6 inch/47 Mk.16 (152 mm)]]
 +
* [[6 inch/50 BL Mark XXIII (152 mm)]]
 +
* [[6 inch/50 QF Mark N5 (152 mm)]]
 +
* [[6 inch/53 Mk.12 (152 mm)]]
 +
* [[152 mm/57 B-38 (152 mm)]]
 +
* [[152/53 mm Ansaldo mod.1926 (152 mm)]]
 +
* [[152/53 mm O.T.O. Mod.1929 (152 mm)]]
  
 
== External links ==
 
== External links ==
−
''Paste links to sources and external resources, such as:''
+
<!-- ''Paste links to sources and external resources, such as:''
 
* ''topic on the official game forum;''
 
* ''topic on the official game forum;''
−
* ''encyclopedia page on the weapon;''
+
* ''other literature.'' -->
−
* ''other literature.''
+
* [[wikipedia:15 cm/50 41st Year Type|[Wikipedia] 15 cm/50 41st Year Type]]
 +
* [http://www.navweaps.com/Weapons/WNJAP_6-50_t41.php <nowiki>[NavWeaps]</nowiki> 50 caliber 41st Year Type 15 cm Gun]
 +
* [http://www.combinedfleet.com/155_50.htm <nowiki>[Combined Fleet]</nowiki> Japanese Naval Ordnance - 6"/50 caliber]
 +
* [http://japanese-warship.com/light/agano/ <nowiki>[Japanese Warship]</nowiki> Agano (First of the Agano-class light cruisers)]
  
 
{{Japan naval cannons}}
 
{{Japan naval cannons}}
  
 
[[Category:Naval cannons]]
 
[[Category:Naval cannons]]

Latest revision as of 13:35, 4 November 2023

Description

15 cm/50 Type 41 in a single-mount secondaries

The 152 mm 15 cm/50 Type 41 is a Japanese high-calibre gun found as a primary weapon in twin-turrets on the Agano and a secondary single-mount casemate gun on Kongo-class battleships. Historically it was a family of weapons originally designed by British Vickers, then redesigned for production in Japan in 1908. Aside from the aforementioned ships, the guns were also used on the Fusō-class battleships and as coastal defenses on Guam.

Vehicles equipped with this weapon

General info

and the dual-mount primaries

The Type 41 is a typical weapon for a cruiser, featuring a good mix of calibre, rate of fire, and the overall physical dimensions of the gun. It makes it suitable for engaging targets at a long range and directly countering destroyers. The key highlight is its SAP shells.

Available ammunition

Both HE and SAP shells are sufficient to defeat armour on any destroyer or a coastal unit, while SAP shells will struggle only with some of the reinforced points on the heavy cruisers or larger warships. The key advantage of SAP shells is their explosion after 8.5 m, making them suitable for dealing with enemy destroyers without switching shells to HE. Given that SAP shells have nearly the same explosive filler as HE - using HE is extremely situational and SAP is superior in nearly all circumstances.

HE-TF shells are available only on the twin-gun turrets of IJN Agano, as these turrets have a significantly increased vertical guidance and targetting speed, making it possible to engage aerial targets.

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
Type 0 HE HE 35 35 35 35 35 35
Type 0 HE-TF HE-TF 35 35 35 35 35 35
Type 4 SAP SAP 81 68 52 40 34 34
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%
Type 0 HE HE 850 45.26 0 0.1 3.17 79° 80° 81°
Type 0 HE-TF HE-TF 850 45.26 0 0.1 3.17 79° 80° 81°
Type 4 SAP SAP 850 45.26 0.01 7 2.92 47° 60° 65°

Comparison with analogues

IJN Agano engaging enemy warship with the SAP shells

The gun is featured in two configurations: single and dual-mount, with single-mount having a much higher rate of fire, increasing from 6.2 shots/minute to 10 shots/minute, a 60% increase.

The biggest pain point are its dated shells. HE shells have a low amount of explosive filler. SAP rounds have a low penetration among the shells of the type, their explosive filler is relatively large, but in both statistics, it's worse than the Soviet 152 mm/57 B-38 (152 mm).

And while the single-mount weapon trades these disadvantages for a high rate of fire, the same cannot be said for the dual-mount. Still, it does have some key advantages: high elevation angles, a fast horizontal guidance speed and an added HE-TF shell (even if it has a small explosive filler).

It's also worth mentioning that the muzzle velocity is relatively low compared to its peers, however, it's perfectly adequate, and both: lower and higher calibre guns commonly feature lower muzzle velocities.

HE

Cannon Sample Ship Ammo Calibre
(mm) 		Muzzle Velocity
(m/s) 		Sustained rate of fire
(rounds/min) 		Targeting speed
(°/s) 		TNT Equivalent
(kg) 		Penetration
@ 0° Angle of Attack (mm)
Horizontal Vertical 1,000 m 5,000 m 10,000 m
Japan flag.png 15 cm/50 Type 41 (152 mm) IJN Agano HE 152 850 6.2 10 6 3.17 35 35 35
Japan flag.png 15 cm/50 Type 41 (152 mm) IJN Kongo HE 152 850 10 4.2 4.2 3.17 35 35 35
Japan flag.png 6-inch/45 Type 41 (152 mm) IJN Settsu HE 152 825 5 4.2 4.2 5.28 43 43 43
USA flag.png 6 inch/53 Mk.12 (152 mm) USS Raleigh HE 152 914 6 6.8 6 5.88 49 49 49
Britain flag.png 6 inch/50 BL Mark XXIII (152 mm) HMNZS Leander HE 152 841 8 6.0 8.5 3.96 37 37 37
Italy flag.png 152/53 mm O.T.O. Mod.1929 (152 mm) RN Raimondo Montecuccoli HE 152 935 8 5.1 4.2 2.39 29 29 29
USSR flag.png 152 mm/57 B-38 (152 mm) Sverdlov HE 152 950 7.5 6.1 11 6 50 50 50

SAP

Cannon Sample Ship Ammo Calibre
(mm) 		Muzzle Velocity
(m/s) 		Sustained rate of fire
(rounds/min) 		Targeting speed
(°/s) 		TNT Equivalent
(kg) 		Penetration
@ 0° Angle of Attack (mm)
Horizontal Vertical 1,000 m 5,000 m 10,000 m
Japan flag.png 15 cm/50 Type 41 (152 mm) IJN Agano SAP 152 850 6.2 10 6 2.92 81 52 34
Japan flag.png 15 cm/50 Type 41 (152 mm) IJN Kongo SAP 152 850 10 4.2 4.2 2.92 81 52 34
USA flag.png 6 inch/53 Mk.12 (152 mm) USS Raleigh SAP 152 914 6 6.8 6 0.997 210 138 85
Britain flag.png 6 inch/50 BL Mark XXIII (152 mm) HMNZS Leander SAPBC 152 841 8 6.0 8.5 1.7 197 137 90
USSR flag.png 152 mm/57 B-38 (152 mm) Sverdlov SAP 152 950 7.5 6.1 11 5.9 172 117 74

HE-TF

Cannon Sample Ship Ammo Calibre
(mm) 		Muzzle Velocity
(m/s) 		Sustained rate of fire
(rounds/min) 		Targeting speed
(°/s) 		TNT Equivalent
(kg) 		Penetration
@ 0° Angle of Attack (mm)
Horizontal Vertical 1,000 m 5,000 m 10,000 m
Japan flag.png 15 cm/50 Type 41 (152 mm) IJN Agano HE-TF 152 850 6.2 10 6 3.17 35 35 35
Britain flag.png 6 inch/50 BL Mark XXIII (152 mm) HMNZS Leander HE-TF 152 841 8 6.0 8.5 3.96 37 37 37
Italy flag.png 152/53 mm O.T.O. Mod.1929 (152 mm) RN Raimondo Montecuccoli HE-TF 152 935 8 5.1 4.2 2.39 29 29 29
USSR flag.png 152 mm/57 B-38 (152 mm) Sverdlov HE-TF 152 950 7.5 6.1 11 6.56 53 53 53

Usage in battles

IJN Kongo secondaries firing a full broadside at the enemy destroyer while the main guns are reloading

The weapon can be found as both: a primary weapon on IJN Agano (firing 6 shells broadside every 9.7sec) and a secondary weapon on the Kongo-class (firing 4 shells every 6 seconds). In terms of TNT equivalent per minute for the HE shells, this translates to 117,9 kg in Agano vs 126.8 kg in Kongo (or 95,1 kg/minute for the arcs where only Kongo's 3 guns can fire). So while at a first glance it might seem that the Type 41 as a secondary weapon is mostly just a filler, in reality, it can output as much damage as a cruiser.

Pros and cons

Pros:

  • Excellent SAP shell able to engage everything from a light cruiser to a motorboat
  • Single-mount version has an excellent rate of fire for the calibre, making it relatively easy to engage coastal units at a range

Cons:

  • No dedicated armour-piercing shells make it difficult if not impossible to respond to the enemy heavy cruisers or battleships
  • Low explosive filler in the HE and HE-TF shells compared to the contemporary shells
  • Dual-mount version has a relatively slow fire rate and it's not compensated with more guns on a platform

History

The history of the 50 calibre 41st Year Type 15 cm Gun (50口径四十一式15cm砲) reaches the year 1908 (hence the "41st year" - 1908 in the Georgian calendar is the 41st year of Meiji era in Japanese dating) when the Imperial Japanese Navy adopted the redesigned 6"/50 Vickers guns that were to be used on the Kongō and Fusō-class. The redesign was done by the Kure Naval Arsenal engineer, Dr. Hata Chiyokichi (who will also design the 155 mm/60 3rd Year Type), changing the wire-wound construction to a three-layer built-up, making it cheaper to replace liners.

When the Kongō-class battlecruiser was laid down for construction by the Vickers Shipbuilding Company in North West England it received the British 6"/50 Vickers Mark M guns, but the designation was kept, and the subsequent ships of the class were built in Japanese shipyards received Japanese-built guns.

Once commissioned in 1913 the gun characteristics were praised, though it was found that the Japanese sailors struggled to manually load the 45.4 kg projectiles, as they were of a lighter build than their English colleagues. In effect, the real firing rate of the gun was only 6 rounds per minute, in contrast to 10 rounds per minute on the English ships, and as the crew grew tired it decreased even further.

When Agano-class was being designed in 1939 it was decided that the 15 cm/50 Type 41 will be used in specially designed mountings. In order to counter enemy light cruisers design was settled on a twin mount. Further improvements included electro-hydraulic slewing and elevation and an increase of the elevation angles from +30° to +55° - both changes were made with an ability to engage aircraft in mind, however, the new turrets were unable to effectively fire at these targets, as each gun had to be lowered down to +7° for the manual reloading of the shells (no automation could be introduced due to mass constraints). Another interesting quirk of these mounts was the fact that they were on a large, rotating mechanism, along with the 1st stage magazine below (hence why they're called mounts, rather than turrets). Shells were carried onto the contraption manually from the main magazine and then hoisted up to the gun housing. All of this was done to minimize the mass and size of the main artillery. As a result, the double-mount weighed only 72 tonnes, compared to 76 tonnes of two Fusō-style single-mounts.

In 1943 anti-submarine projectiles were provided for the guns on top of the existing Type 0 and Type 4 shells. These were longer, heavier projectiles with a blunt nose designed to form a cavity around the shell as it penetrated the water, enabling it to penetrate the submarine hull at the depth of 8 m.

Media

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

See also

External links


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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