8 inch/55 Mark 9 (203 mm) - Revision history

U38088265: /* Available ammunition */ Converted to transclusion

2023-09-19T16:19:24Z

‎Available ammunition: Converted to transclusion

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U60411189: i added a picture

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i added a picture

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‎Available ammunition

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‎Available ammunition

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‎History

U137319744: /* History */ added history with references

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‎History: added history with references

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Created page

New page

== 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 ===


* {{Specs-Link|us_cruiser_northampton_class}}
* {{Specs-Link|us_cruiser_pensacola_class}}
* {{Specs-Link|us_cruiser_portland_class}}

== General info ==
''Tell us about the tactical and technical characteristics of the cannon or machine gun.''

=== 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).''

=== 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 If the historical reference turns out to be too long, take it to a separate article, taking a link to the article about the weapon and adding a block "/History" (example: <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>.''

== 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.''

{{USA naval cannons}}

[[Category:Naval cannons]]

@@ Line 14: / Line 14: @@
 === 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%"
-! colspan="8" | Penetration statistics
+{{:{{PAGENAME}}/Ammunition|8 inch Mk.14 Common, 8 inch Mk.19 APCBC, 8 inch Mk.25 HC, 8 inch Mk.17 SP Common}}
 === Comparison with analogues ===

@@ Line 1: / Line 1: @@
-[[File:8 inch-55 Mark 9.png|thumb|x250px|8 inch/55 Mark 9 (203 mm) Cannons on the USS Northampton]]
+[[File:8 inch-55 Mark 9.png|thumb|x250px|8 inch/55 Mark 9 cannons on the USS Northampton]]
 == 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.''

← Older revision		Revision as of 00:18, 23 February 2023
Line 1:		Line 1:
		+	[[File:Image 2023-02-22 161706410.png\|thumb\|8 inch/55 Mark 9 (203 mm) Cannons on the USS Northampton]]
		+
	== 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.''

@@ Line 50: / Line 50: @@
 | Mk.19 APCBC || APCBC || 853 || 117.9 || 0.035 || 9 || 1.62 || 48° || 63° || 71°
 |-
-| Mk.25 HC || HE || 853 || 117.9 || 0 || .1 || 9.5 || 79° || 80° || 81°
+| Mk.25 HC || HE || 853 || 117.9 || 0 || 0.1 || 9.5 || 79° || 80° || 81°
 |-
 | Mk.17 SP Common || SP Common || 853 || 117.9 || 0.035 || 9 || 4.61 || 48° || 63° || 71°

@@ Line 33: / Line 33: @@
 == History ==
-After World War I, the victorious parties of the Entente Powers came to together to sign an agreement that would prevent another type of naval arms race such as the Dreadnought arms race that preceded the Great War. As part of the negotiations, it was decided to divide cruisers between light and heavy cruisers based on the caliber of their guns. Heavy cruisers, defined as armed with 8 inch guns and a displacement of 10,000 tons was chosen to appease the British, American and Japan signatories who were all planning on cruisers with this caliber of guns and the first power beginning construction of the [[HMS Hawkins|Hawkins-class]] which meet these specifications. For the United States, their heavy cruiser armament became the 8 inch, fifty-five caliber guns, a built-up gun design that entered service in 1925. Weighing about 30 tons including a liner, tube, jacket, and five hoops these guns had a down-swing Welin breech block was closed by compressed air from the gas ejector system.  Loading with two silk bags each containing 45 pounds (20 kg) of smokeless powder gave a 260-pound (120 kg) projectile a velocity of 2800 feet per second (853 m/s)<ref name=":0">Campbell 1985 pp.127-131</ref>. Range was 18 miles 31,860 yd (29,130 m) at the maximum elevation of 41 degrees <ref name=":0" /><ref>DiGiulian, Tony (27 April 2011). "United States of America 8"/55 (20.3 cm) Marks 9, 10, 11, 13 and 14". Navweaps.com. Archived from the original on 30 June 2011. Retrieved 2011-07-21.</ref>. The first ships built to mount these guns were the ''Lexington''-class battlecrusiers which had 4 twin gun turrets with the Mark 9 guns. However the Washington Naval Treaty restrictions on constructing these types of ships led to their conversion to aircraft carriers and the cannons were repurposed as coastal defense guns on the Hawaiian Island of Oahu. Later in 1927, the [[USS Pensacola]] and its sister ship the USS Salt Lake City featured both two twin turrets and two triple turrets with the Mark 9. The following year, the [[USS Northampton]] and its class was built with 3 triple turrets with Mark 9 guns. In 1930 the [[USS Portland]] and USS Indianapolis were built 3 triple-turreted Mark 9s and in 1931 they were fitted on the early [[USS New Orleans|''New Orleans''-class]] ships, the USS New Orleans, USS Minneapolis, and USS Astoria, before being replaced by the lighter [[8 inch/55 Mark 12 (203 mm)|8 inch/55 Mark 12]]. The earlier ships armed with the Mark 9 would be refitted later in the war for the similar, but superior [[8 inch/55 Mark 14 (203 mm)|8 inch/55 Mark 14]]. Except for the USS Chicago, USS Houston, and USS Astoria which were sunk during the war and the USS New Minneapolis which received the improved Mark 15 gun.
+<!-- ''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>.'' -->
+After World War I, the victorious parties of the Entente Powers came to together to sign an agreement that would prevent another naval arms race like the dreadnought arms race that had preceded the Great War. As part of the negotiations, it was decided to divide cruisers between light and heavy cruisers based on the calibre of their guns. Heavy cruisers were defined as armed with 8 inch guns and a displacement of 10,000 tons, chosen to appease the British, American, and Japanese signatories who were all planning on cruisers with this calibre of guns. For the United States, their standard heavy cruiser armament became the 8 inch, fifty-five calibre guns, a built-up gun design that entered service in 1925. Weighing about 30 tons including a liner, tube, jacket, and five hoops, these guns had a down-swing Welin breech block closed by compressed air from the gas ejector system. The first ships built to mount these guns were the ''Lexington''-class battlecruisers which had 4 twin gun turrets with the Mark 9 guns. However, the Washington Naval Treaty restrictions on constructing these types of ships led to their conversion to aircraft carriers and the cannons were repurposed as coastal defense guns on the Hawaiian Island of Oahu. Later in 1926, [[USS Pensacola|USS ''Pensacola'']] and its sister ship ''Salt Lake City'' featured both two twin turrets and two triple turrets with the Mark 9. The following year, the [[USS Northampton|''Northampton'']] and its class was built with 3 triple turrets with Mark 9 guns. In 1930, [[USS Portland|''Portland'']] and ''Indianapolis'' were built with 3 triple-turreted Mark 9s, and in 1931, the guns were fitted on the early [[USS New Orleans|''New Orleans''-class]] ships, the ''New Orleans'', ''Minneapolis'', and ''Astoria'', before being replaced by the lighter [[8 inch/55 Mark 12 (203 mm)|8 inch/55 Mark 12]]. The earlier ships armed with the Mark 9 would be refitted later in the war for the similar but superior [[8 inch/55 Mark 14 (203 mm)|8 inch/55 Mark 14]], except for ''Chicago'', ''Houston'', and ''Astoria'' which were sunk during the war, and ''Minneapolis'' which received the improved Mark 15 gun.
 == Media ==

@@ Line 1: / Line 1: @@
-[[File:Image 2023-02-22 161706410.png|thumb|8 inch/55 Mark 9 (203 mm) Cannons on the USS Northampton]]
+[[File:8 inch-55 Mark 9.png|thumb|x250px|8 inch/55 Mark 9 (203 mm) Cannons on the USS Northampton]]
 == 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 84: / Line 83: @@
 == 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.''
@@ Line 90: / Line 88: @@
 == External links ==
 ''Paste links to sources and external resources, such as:''
 * ''topic on the official game forum;''
 * ''other literature.''