8 inch/55 Mark 12 (203 mm) - Revision history

U137319744: /* History */ Correction. The Washington Naval Treaty was signed in 1922 but negotiated in 1921.

2024-03-14T16:27:47Z

‎History: Correction. The Washington Naval Treaty was signed in 1922 but negotiated in 1921.

U38088265: /* Available ammunition */ Converted to transclusion

2023-09-19T16:20:57Z

‎Available ammunition: Converted to transclusion

U44629479: Edits

2023-02-23T09:31:13Z

Edits

U44629479: Edits

2023-02-23T08:47:22Z

Edits

U60411189: i added a picture

2023-02-23T00:20:28Z

i added a picture

U38088265: /* Available ammunition */

2022-10-16T13:32:30Z

‎Available ammunition

U40820515: /* Available ammunition */

2022-10-15T21:42:30Z

‎Available ammunition

U44629479: /* See also */ Added similar cannons

2022-10-15T20:18:31Z

‎See also: Added similar cannons

U38088265: /* History */

2022-10-01T10:34:04Z

‎History

U137319744: /* History */ added history

2022-09-30T21:39:27Z

‎History: added history

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 == 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 If the historical reference turns out to be too long, take it to a separate article, taking a link to the article about the weapon and adding a block "/History" (example: 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>.'' -->
-The Washington Naval Treaty signed in 1921 maintained that heavy cruisers would be armed with 8 inch guns. The United States Navy first created the [[8 inch/55 Mark 9 (203 mm)|8 inch/55 Mark 9]] guns for their heavy cruisers, but they were heavier and bulkier compared to the 8 inch guns of the other signatory nations. As a result, the 8 inch, 55 calibre Mark 12 gun was created as a more lightweight alternative. With a chromium-lined barrel to increase the life of the barrel, the Mark 12 removed the construction hoops to bring the weight to 17 tons from the Mark 9's 30 tons. There were two mountings for the Mark 12. The first was the ''Tuscaloosa'' sub-class of the [[USS New Orleans|''New Orleans''-class]], which used the same triple mountings as the Mark 9, but had a lower revolving weight. To decrease the shell dispersion and improve accuracy, the USS ''Wichita'' and [[USS Baltimore|USS ''Baltimore'']] mounted individually sleeved guns in further spaced twin turrets. The Mark 12 would eventually give way to the Mark 15 which had a slightly smaller chamber and different rifling twist that would enter service first on the ''Baltimore''<nowiki/>'s sister ships.
+The Washington Naval Treaty signed in 1922 maintained that heavy cruisers would be armed with 8 inch guns. The United States Navy first created the [[8 inch/55 Mark 9 (203 mm)|8 inch/55 Mark 9]] guns for their heavy cruisers, but they were heavier and bulkier compared to the 8 inch guns of the other signatory nations. As a result, the 8 inch, 55 calibre Mark 12 gun was created as a more lightweight alternative. With a chromium-lined barrel to increase the life of the barrel, the Mark 12 removed the construction hoops to bring the weight to 17 tons from the Mark 9's 30 tons. There were two mountings for the Mark 12. The first was the ''Tuscaloosa'' sub-class of the [[USS New Orleans|''New Orleans''-class]], which used the same triple mountings as the Mark 9, but had a lower revolving weight. To decrease the shell dispersion and improve accuracy, the USS ''Wichita'' and [[USS Baltimore|USS ''Baltimore'']] mounted individually sleeved guns in further spaced twin turrets. The Mark 12 would eventually give way to the Mark 15 which had a slightly smaller chamber and different rifling twist that would enter service first on the ''Baltimore''<nowiki/>'s sister ships.
 == Media ==
@@ Line 50: / Line 50: @@
 == External links ==
 ''Paste links to sources and external resources, such as:''
 * ''topic on the official game forum;''
 * ''other literature.''

@@ Line 13: / Line 13: @@
 === 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).'' -->
-{| class="wikitable sortable" style="text-align:center" width="100%"
+{{:{{PAGENAME}}/Ammunition|8 inch Mk.14 Common, 8 inch Mk.21 APCBC, 8 inch Mk.25 HC, 8 inch Mk.17 SP Common}}
 === Comparison with analogues ===

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-[[File:8 inch-55 Mark 12.png|thumb|x250px|8 inch/55 Mark 12 (203 mm) Cannons on the USS Baltimore]]
+[[File:8 inch-55 Mark 12.png|thumb|x250px|8 inch/55 Mark 12 cannons on the USS Baltimore]]
 == 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.''

@@ Line 1: / Line 1: @@
-[[File:Image 2023-02-22 161905603.png|thumb|8 inch/55 Mark 12 (203 mm) Cannons on the USS Baltimore]]
+[[File:8 inch-55 Mark 12.png|thumb|x250px|8 inch/55 Mark 12 (203 mm) Cannons on the USS Baltimore]]
 == 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.''
@@ Line 91: / Line 90: @@
 == External links ==
 ''Paste links to sources and external resources, such as:''
 * ''topic on the official game forum;''
 * ''other literature.''

@@ Line 1: / Line 1: @@
 == 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.''
@@ Line 74: / Line 76: @@
 == 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>.'' -->
-The Washington Naval Treaty signed in 1921 maintained that heavy cruisers would be armed with 8 inch guns. The United States Navy first created the [[8 inch/55 Mark 9 (203 mm)|8 inch/55 Mark 9]] guns for their heavy cruisers, but they were heavier and bulkier compared to the 8 inch guns of the other signatory nations. As a result, the 8 inch, 55 calibre Mark 12 gun was created as a more lightweight alternative. With a chromium-lined barrel to increase the life of the barrel, the Mark 12 removed the construction hoops to bring the weight to 17 tons from the Mark 9's 30 tons. There were two mountings for the Mark 12. The first was the ''Tuscaloosa'' sub-class of the [[USS New Orleans|''New Orleans''-class]], which used the same triple mountings as the Mark 9, but had a lower revolving weight. To decrease the shell dispersion and improve accuracy, the USS ''Wichita'' and [[USS Baltimore|USS ''Baltimore'']] mounted individually sleeved guns in further spaced twin turrets. The Mark 12 would eventually give way to the Mark 15 which had a slightly smaller chamber and different rifling twist that would enter service first on the ''Baltimore''<nowiki />'s sister ships.
+The Washington Naval Treaty signed in 1921 maintained that heavy cruisers would be armed with 8 inch guns. The United States Navy first created the [[8 inch/55 Mark 9 (203 mm)|8 inch/55 Mark 9]] guns for their heavy cruisers, but they were heavier and bulkier compared to the 8 inch guns of the other signatory nations. As a result, the 8 inch, 55 calibre Mark 12 gun was created as a more lightweight alternative. With a chromium-lined barrel to increase the life of the barrel, the Mark 12 removed the construction hoops to bring the weight to 17 tons from the Mark 9's 30 tons. There were two mountings for the Mark 12. The first was the ''Tuscaloosa'' sub-class of the [[USS New Orleans|''New Orleans''-class]], which used the same triple mountings as the Mark 9, but had a lower revolving weight. To decrease the shell dispersion and improve accuracy, the USS ''Wichita'' and [[USS Baltimore|USS ''Baltimore'']] mounted individually sleeved guns in further spaced twin turrets. The Mark 12 would eventually give way to the Mark 15 which had a slightly smaller chamber and different rifling twist that would enter service first on the ''Baltimore''<nowiki/>'s sister ships.
 == Media ==

@@ Line 47: / Line 47: @@
 | Mk.14 Common || Common || 823 || 117.9 || 0.035 || 9 || 4.84 || 47° || 60° || 65°
 |-
-| Mk.19 APCBC || APCBC || 762 || 151.9 || 0.035 || 9 || 2.21 || 48° || 63° || 71°
+| Mk.21 APCBC || APCBC || 762 || 151.9 || 0.035 || 9 || 2.21 || 48° || 63° || 71°
 |-
-| Mk.25 HC || HE || 823 || 117.9 || 0 || .1 || 9.5 || 79° || 80° || 81°
+| Mk.25 HC || HE || 823 || 117.9 || 0 || 0.1 || 9.5 || 79° || 80° || 81°
 |-
 | Mk.17 SP Common || SP Common || 823 || 117.9 || 0.035 || 9 || 4.61 || 48° || 63° || 71°

@@ Line 39: / Line 39: @@
 == 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;''
+* [[8 inch/55 Mark 9 (203 mm)]]
-* ''references to approximate analogues by other nations and research trees.''
+* [[8 inch/55 Mark 14 (203 mm)]]
 == External links ==