Difference between revisions of "5 inch/38 Mk.12 (127 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.'' -->
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''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.''
The 5"/38 Mk.12 is a dual-purpose 127 mm cannon, developed and used prolifically on American vessels.
 
  
 
=== 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.'' -->
 
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* {{Specs-Link|us_destroyer_fletcher_bennion|short}}
{{Navigation-Start|Vehicles equipped with this weapon}}
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* {{Specs-Link|us_destroyer_fletcher_cowell|short}}
 
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* {{Specs-Link|us_destroyer_farragut_1942|short}}
{{Navigation-First-Line|'''Destroyers'''}}{{Specs-Link|us_destroyer_farragut_1942}}{{-}}{{Specs-Link|us_destroyer_fletcher}}{{-}}{{Specs-Link|us_destroyer_fletcher_bennion}}{{-}}{{Specs-Link|us_destroyer_fletcher_cowell}}
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* {{Specs-Link|us_destroyer_fletcher|short}}
{{Navigation-Line| }}{{Specs-Link|us_destroyer_porter_1941}}{{-}}{{Specs-Link|us_destroyer_porter_1942}}{{-}}{{Specs-Link|us_destroyer_porter_1944}}{{-}}{{Specs-Link|us_destroyer_somers}}{{-}}{{Specs-Link|us_destroyer_somers_davis}}{{-}}{{Specs-Link|us_destroyer_sumner}}{{-}}{{Specs-Link|us_destroyer_gearing}}{{-}}{{Specs-Link|us_destroyer_gearing_frank_knox}}
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* {{Specs-Link|us_destroyer_somers|short}}
{{Navigation-Line| }}{{Specs-Link|jp_destroyer_harukaze}}{{-}}{{Specs-Link|jp_destroyer_yugure}}
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* {{Specs-Link|us_destroyer_sumner|short}}
{{Navigation-Line| }}{{Specs-Link|it_destroyer_fletcher_geniere}}{{-}}{{Specs-Link|it_destroyer_impetuoso_class_impetuoso}}
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* {{Specs-Link|us_cruiser_atlanta_class_atlanta|short}}
 
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* {{Specs-Link|us_cruiser_brooklyn_class_helena|short}}
{{Navigation-Line|'''Light cruisers'''}}{{Specs-Link|us_cruiser_atlanta_class_atlanta}}{{-}}{{Specs-Link|us_cruiser_cleveland_class_cleveland}}{{-}}{{Specs-Link|us_cruiser_brooklyn_class_helena}}{{-}}{{Specs-Link|us_cruiser_fargo_class}}
 
 
 
{{Navigation-Line|'''Heavy cruisers'''}}{{Specs-Link|us_cruiser_baltimore_class}}{{-}}{{Specs-Link|us_cruiser_baltimore_class_pittsburgh}}{{-}}{{Specs-Link|us_cruiser_des_moines_class}}{{-}}{{Specs-Link|us_cruiser_des_moines_class_newport_news}}
 
 
 
{{Navigation-Line|'''Battlecruisers'''}}{{Specs-Link|us_battlecruiser_alaska_class}}
 
 
 
{{Navigation-Line|'''Battleships'''}}{{Specs-Link|us_battleship_nevada}}
 
 
 
{{Navigation-End}}
 
  
 
== General info ==
 
== General info ==
<!-- ''Tell us about the tactical and technical characteristics of the cannon or machine gun.'' -->
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''Tell us about the tactical and technical characteristics of the cannon or machine gun.''
The 5"/38 is notable for having the highest fire rate of any WWII-era 127 mm gun out of any nation in the game. This stellar rate of fire results in a very high damage output, placing ships equipped with the 5"/38 very high with regards to gun firepower. The destructive capabilities of the shells are also quite high, with competitive penetration and explosive filler. The only limitations on the use of the 5"/38 are the relatively poor ballistics and accuracy at range, which are partially compensated for by the high fire rate of the cannon.
 
  
 
=== 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).'' -->
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<!--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).-->
{{notice|Not all ammunition listed is available on all vehicles equipped with this weapon.}}
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{{:{{PAGENAME}}/Ammunition|5 inch AAC Mk.34, 5 inch Common Mk.32, 5 inch SP Common Mk.46, 5 inch AAVT Mk.31}}
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{| class="wikitable sortable" style="text-align:center" width="100%"
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! colspan="10" | Penetration Statistics
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|-
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! rowspan="2" data-sort-type="text" | Ammunition
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! rowspan="2" data-sort-type="text" | Type of Warhead
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! colspan="6" | '''Penetration @ 0° Angle of Attack (mm)'''
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|-
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! 1000 m !! 2500 m !! 5000 m !! 7500 m !! 10000 m !! 15000 m
 +
|-
 +
| AAC Mk.34 || HE || 36 || 36 || 36 || 36 || 36 || 36
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|-
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| Common Mk.32 || SAP || 121 || 102 || 83 || 71 || 63 || 55
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|-
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| SP Common Mk.46 || SAPBC || 148 || 125 || 101 || 87 || 77 || 68
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|-
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| AAVT Mk.31 || HE-VT || 36 || 36 || 36 || 36 || 36 || 36
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|}
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{| class="wikitable sortable" style="text-align:center" width="100%"
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! colspan="14" | Shell Details
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|-
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! rowspan="2" data-sort-type="text" | Ammunition
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! rowspan="2" data-sort-type="text" | Type of Warhead
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! rowspan="2" | Velocity<br>(m/s)
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! rowspan="2" | Projectile<br>Mass (kg)
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! rowspan="2" | Fuse delay<br>(m)
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! rowspan="2" | Fuse sensitivity<br>(mm)
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! rowspan="2" | Explosive Mass<br>(TNT equivalent) (g)
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! rowspan="2" | Trigger Radius (m)
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! rowspan="2" | Arming Distance (m)
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! rowspan="2" | Tracer
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! rowspan="2" | Normalisation at 30°<br>from horizontal
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! colspan="3" | Ricochet
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|-
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! 0% !! 50% !! 100%
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|-
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| AAC Mk.34 || HE || 792 || 25 || 0.4 || 0.1 || 3,220 || N/A || N/A || ✓ || ?.?° || 79° || 80° || 81°
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|-
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| Common Mk.32 || SAP || 792 || 24.49 || 6.0 || 5.0 || 1,150 || N/A || N/A || ✓ || ?.?° || 48° || 63° || 71°
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|-
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| SP Common Mk.46 || SAPBC || 792 || 25.02 || 6.0 || 5.0 || 906.5 || N/A || N/A || ✓ || ?.?° || 48° || 63° || 71°
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|-
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| AAVT Mk.31 || HE-VT || 792 || 25 || 0.0 || 0.1 || 3,220 || 23 || 457 || ✓ || ?.?° || 79° || 80° || 81°
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|-
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|}
  
 
=== Comparison with analogues ===
 
=== Comparison with analogues ===
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== 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.'' -->
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''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.''
Playing with US destroyers, the 5 inch/38 Mk.12 will be your main cannon up until you reach cruisers. Playing as Cruisers, this cannon will make up your secondary armament, fending off planes or other naval vessels that are weaker than you. Your main shell to use against other naval targets is Common Mk.32, or SP Common Mk.46, as they are SAPCBC (Semi-Armour Piercing), and offer the the best between both penetration and damage. HE-VT can be taken as well, and will be effective against air targets, or other naval vessels as the shell is proximity-fused. With the reload rate varying from 4.0 seconds to 2.0, the gun can easily make work of knocking out opponents within minutes.
 
  
'''Against Destroyers:''' SAPCBC can disable/sink other destroyers within a few seconds to a few minutes, depending on the range and lead of your target. While lacking in explosive mass than some other similar cannons your reload rate makes up for it. At closer range, it is best to target turret components such as ammo elevators, or ammunition stowage to disable/reduce the enemy's firepower against you, and eventually aiming for the hull of the ship, such as the engine deck and transmission area while taking advantage of taking your fire rate.
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=== Pros and cons ===
 
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''Summarise and briefly evaluate the weaponry in terms of its characteristics and combat effectiveness. Mark pros and cons as a list.''
'''Against Cruisers:''' The 5 inch Mk.38 starts to fall here once you start facing Light and Heavy Cruisers. The SAPCBC shells lack in explosive power, with damage output being subpar. Playing as a destroyer, your best option to to aim for the turrets of Light and other possible Heavy Cruisers in hoping of disabling their turrets, although vessels such as the USS Somers or USS Moffett can defeat other cruisers, it's best to stay in a support role. While HE may not be effective, there may be a chance on starting fires on enemy decks as well, throwing them off guard. Take use of your exceptional reload rate, and if possible have and provide support for other friendly vessels that have the firepower to take down cruisers. An possible exception is the USS Atlanta that houses eight 5 Inch/Mk.38 in dual turret mounts, as the Atlanta can fire up to 14 guns broadside, shelling enemy vessels before they can properly counter you. Despite the fall in damage and firepower against cruisers, the 5 Inch/Mk.38 is one of the best 127mm cannon out there that can go against cruisers.
 
 
 
'''Against Air Targets:''' HE-VT can make great work against other enemy aviation aircraft. With US Destroyers, it's best to find cover first if you can before you engage enemy air targets as you will be distracted and focused on the enemy aircraft. Leading may be difficult, but HE-VT will compensate for that if it flies into the path of the enemy air target. Have your AI Crew controlling your autocannons to assist you if aren't able to kill an aircraft that gets too close. With Cruisers, it's best to have AI take care of AA fire, as they can be deadly with their crew skills ranked up. Be aware the fuse won't activate within 500 m or so.
 
  
=== Pros and cons ===
 
<!-- ''Summarise and briefly evaluate the weaponry in terms of its characteristics and combat effectiveness. Mark pros and cons as a list.'' -->
 
 
'''Pros:'''
 
'''Pros:'''
 
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*
* Very good rate of fire
 
* Access to HE-VT shells
 
* Good firepower
 
* Good post-penetration damage
 
  
 
'''Cons:'''
 
'''Cons:'''
 
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*
* Bad accuracy at long range
 
* Subpar muzzle velocity
 
  
 
== History ==
 
== History ==
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== Media ==
 
== Media ==
''Excellent additions to the article would be video guides, screenshots from the game, and photos.''
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''An excellent addition to the article would be a video guide, as well as 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.''
  
 
== External links ==
 
== External links ==
<!-- ''Paste links to sources and external resources, such as:''
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''Paste links to sources and external resources, such as:''
 
* ''topic on the official game forum;''
 
* ''topic on the official game forum;''
* ''other literature.'' -->
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* ''encyclopedia page on the weapon;''
 
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* ''other literature.''
* [[wikipedia:5%22/38_caliber_gun|[Wikipedia] 5"/38 caliber gun]]
 
  
 
{{USA naval cannons}}
 
{{USA naval cannons}}
{{Japan naval cannons}}
 
{{Italy naval cannons}}
 
  
 
[[Category:Naval cannons]]
 
[[Category:Naval cannons]]

Revision as of 01:47, 19 December 2019

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.

Vehicles equipped with this weapon

General info

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

Available ammunition

Penetration Statistics
Ammunition Type of Warhead Penetration @ 0° Angle of Attack (mm)
1000 m 2500 m 5000 m 7500 m 10000 m 15000 m
AAC Mk.34 HE 36 36 36 36 36 36
Common Mk.32 SAP 121 102 83 71 63 55
SP Common Mk.46 SAPBC 148 125 101 87 77 68
AAVT Mk.31 HE-VT 36 36 36 36 36 36
Shell Details
Ammunition Type of Warhead Velocity
(m/s)
Projectile
Mass (kg)
Fuse delay
(m)
Fuse sensitivity
(mm)
Explosive Mass
(TNT equivalent) (g)
Trigger Radius (m) Arming Distance (m) Tracer Normalisation at 30°
from horizontal
Ricochet
0% 50% 100%
AAC Mk.34 HE 792 25 0.4 0.1 3,220 N/A N/A  ?.?° 79° 80° 81°
Common Mk.32 SAP 792 24.49 6.0 5.0 1,150 N/A N/A  ?.?° 48° 63° 71°
SP Common Mk.46 SAPBC 792 25.02 6.0 5.0 906.5 N/A N/A  ?.?° 48° 63° 71°
AAVT Mk.31 HE-VT 792 25 0.0 0.1 3,220 23 457  ?.?° 79° 80° 81°

Comparison with analogues

Give a comparative description of cannons/machine guns that have firepower equal to this weapon.

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

Summarise and briefly evaluate the weaponry in terms of its characteristics and combat effectiveness. Mark pros and cons as a list.

Pros:

Cons:

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: https://wiki.warthunder.com/(Weapon-name)/History) and add a link to it here using the main template. Be sure to reference text and sources by using <ref></ref>, as well as adding them at the end of the article with <references />.

Media

An excellent addition to the article would be a video guide, as well as 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;
  • encyclopedia page on the weapon;
  • other literature.


USA naval cannons
20 mm  20 mm/70 Oerlikon Mk.II · 20 mm/70 Oerlikon Mark V · 20 mm/70 Oerlikon Mark 24
25 mm  25 mm/87 Mk.38
28 mm  1.1 inch/75 Mk.1
37 mm  AN-M4
40 mm  Bofors L/60 Mark 1 · Bofors L/60 Mark 2 · Bofors L/60 Mark 3
76 mm  3 inch/23 Mk.4 · 3-inch/50 Mk.10 · 3-inch/70 Mk.37 · 3-inch Mark 10 · 3 inch Mk.33 · 3-inch Mk.34
102 mm  4 inch/50 Mk.9
127 mm  5 inch/25 Mk.11 · 5 inch/25 Mk.13 AA · 5 inch/38 Mk.12 · 5-inch/50 Mk.5 · 5 inch/51 Mk.7 · 127 mm/54 Mark 18
152 mm  6 inch/47 Mk.16 · 6 inch/47 DP Mk.16 · 6 inch/53 Mk.12 · M81
203 mm  8 inch/55 Mark 9 · 8 inch/55 Mark 12 · 8 inch/55 Mark 14 · 8 inch/55 Mark 16
305 mm  12-inch/45 Mk.5 · 12 inch/50 Mk.7 · 12 inch/50 Mk.8
356 mm  14 inch/45 Mk.8 · 14 inch/45 Mk.12 · 14 inch/50 Mk.11