JM61 (20 mm) - Revision history

U38088265: /* Available ammunition */ Converted to transclusion

2024-04-20T19:54:06Z

‎Available ammunition: Converted to transclusion

U28580205: /* History */

2022-10-14T12:43:44Z

‎History

U137319744: /* History */ added history

2022-10-11T04:28:37Z

‎History: added history

U38088265: /* Available ammunition */ Updated

2022-06-27T18:01:26Z

‎Available ammunition: Updated

U44629479: Edits

2021-12-26T08:51:40Z

Edits

U44629479: Edits

2021-12-26T08:49:06Z

Edits

U20043873: filled out the page a bit

2021-12-26T03:02:18Z

filled out the page a bit

U38088265: U38088265 moved page JM61-RFS (20 mm) to JM61 (20 mm): Renamed to match in-game name

2019-11-06T00:11:53Z

U38088265 moved page JM61-RFS (20 mm) to JM61 (20 mm): Renamed to match in-game name

U38088265: Created page

2019-06-12T13:17:18Z

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|jp_pg02}}

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 If the historical reference turns out to be too long, take it to a separate article, taking a link to the article about the weapon and adding a block "/ History" (example: 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

{{Japan naval cannons}}

[[Category:Naval cannons]]

@@ Line 23: / Line 23: @@
 * '''20 mm APDS belts:''' {{Annotation|APDS|Armour-piercing discarding sabot}}{{-}}{{Annotation|APDS|Armour-piercing discarding sabot}}{{-}}{{Annotation|APDS|Armour-piercing discarding sabot}}{{-}}{{Annotation|APDS|Armour-piercing discarding sabot}}
-{| class="wikitable sortable" style="text-align:center" width="100%"
+{{:{{PAGENAME}}/Ammunition|API-T, HEF-I, APDS}}
 === Comparison with analogues ===

@@ Line 81: / Line 81: @@
 == History ==
-With Japan's industry badly damaged by World War II and only just exiting a stage of economic recovery at the time, the Japanese Maritime Self-Defense Force's first ships were transfers from the US Navy though even when they began building their ships in 1956, they still used American designed weapons such as the [[3 inch Mk.33 (76 mm)|3 inch Mk.33]] to arm them. The practice continues to the present with the entirety of Japan's naval weapons being based on American designs or from other foreign nations such as Italy. The JM61 is another example of their use of American designs. A licensed version of the [[M61 (20 mm)|M61 Vulcan]] adopted by the United States Air Force in 1959 for fighter aircraft, the cannon would be used in other applications. In the 1970s, the United States Navy used the Vulcan as the basis for the Phalanx Close-In Weapon System (CIWS) as a last line of defense against attacks against their ships. Entering service in 1980, the design was adopted by a number of America's allies including Japan. Around 1990, the JM61 seen in-game was developed. Based on the CIWS, it used a simplified mounting that was less complex and developed by Sumitomo Heavy Industries Ltd. While the Phalanx was the weapon of choice for JMSDF destroyers, the JM61 in its numerous variants, is the weapon used for smaller vessels such as minesweepers, landing craft and patrol boats such as [[PG 02]]. The gun is also by the Maritime Security Agency (now the Japanese Coast Guard) starting FY1979 to replace their aging [[20 mm/70 Oerlikon Mark V (20 mm)|20 mm/70 Oerlikon]] guns from World War II.
+<!--''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 ==

@@ 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.''
+<!-- ''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 '''20 mm JM61''' is a Japanese naval cannon. It is a version of the [[JM61A1 (20 mm)|20 mm JM61A1]] rotary aircraft cannon equipped on Japanese jet fighters.
 === Vehicles equipped with this weapon ===
@@ Line 15: / Line 15: @@
 === 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).'' -->
 The JM61 has a choice of 3 belts: HEI, API-T, and APDS.
-* '''20 mm HEI belts:''' {{Annotation|HEF-I|High-explosive fragmentation incendiary shell}}{{-}}{{Annotation|API-T|Armor-piercing incendiary tracer shell}}{{-}}{{Annotation|HEF-I|High-explosive fragmentation incendiary shell}}{{-}}{{Annotation|HEF-I|High-explosive fragmentation incendiary shell}}{{-}}{{Annotation|API-T|Armor-piercing incendiary tracer shell}}{{-}}{{Annotation|HEF-I|High-explosive fragmentation incendiary shell}}
+* '''20 mm HEI belts:''' {{Annotation|HEF-I|High-explosive fragmentation incendiary}}{{-}}{{Annotation|API-T|Armour-piercing incendiary tracer}}{{-}}{{Annotation|HEF-I|High-explosive fragmentation incendiary}}{{-}}{{Annotation|HEF-I|High-explosive fragmentation incendiary}}{{-}}{{Annotation|API-T|Armour-piercing incendiary tracer}}{{-}}{{Annotation|HEF-I|High-explosive fragmentation incendiary}}
-* '''API-T:''' {{Annotation|API-T|Armor-piercing incendiary tracer shell}}{{-}}{{Annotation|HEF-I|High-explosive fragmentation incendiary shell}}{{-}}{{Annotation|API-T|Armor-piercing incendiary tracer shell}}{{-}}{{Annotation|API-T|Armor-piercing incendiary tracer shell}}{{-}}{{Annotation|API-T|Armor-piercing incendiary tracer shell}}{{-}}{{Annotation|HEF-I|High-explosive fragmentation incendiary shell}}
+* '''API-T:''' {{Annotation|API-T|Armour-piercing incendiary tracer}}{{-}}{{Annotation|HEF-I|High-explosive fragmentation incendiary}}{{-}}{{Annotation|API-T|Armour-piercing incendiary tracer}}{{-}}{{Annotation|API-T|Armour-piercing incendiary tracer}}{{-}}{{Annotation|HEF-I|High-explosive fragmentation incendiary}}{{-}}{{Annotation|API-T|Armour-piercing incendiary tracer}}
-* '''20 mm APDS belts:''' {{Annotation|APDS|Armor-piercing discarding sabot shell}}{{-}}{{Annotation|APDS|Armor-piercing discarding sabot shell}}{{-}}{{Annotation|APDS|Armor-piercing discarding sabot shell}}{{-}}{{Annotation|APDS|Armor-piercing discarding sabot shell}}
+* '''20 mm APDS belts:''' {{Annotation|APDS|Armour-piercing discarding sabot}}{{-}}{{Annotation|APDS|Armour-piercing discarding sabot}}{{-}}{{Annotation|APDS|Armour-piercing discarding sabot}}{{-}}{{Annotation|APDS|Armour-piercing discarding sabot}}
 {| class="wikitable sortable" style="text-align:center" width="100%"
 ! colspan="7" | Penetration statistics
 |-
-! rowspan="2" data-sort-type="text" | Shell
+! rowspan="2" data-sort-type="text" | Belt
 ! colspan="6" | Penetration @ 0° Angle of Attack (mm)
 |-
 ! 10 m !! 100 m !! 500 m !! 1,000 m !! 1,500 m !! 2,000 m
 |-
 | API-T || 53 || 50 || 41 || 34 || 29 || 25
 |-
-| HEI || 60 || 57 || 50 || 43 || 38 || 34
+| APDS || 80 || 74 || 50 || 31 || 19 || 12
 |-
 |}
@@ Line 51: / Line 51: @@
 ! 0% !! 50% !! 100%
 |-
-| API-T || 1030 || 0.15 || N/A || N/A || N/A || 47° || 60° || 65°
+| API-T || 1,030 || 0.15 || N/A || N/A || N/A || 47° || 60° || 65°
 |-
-| HEF-I || 1030 || 0.1 || 0 || 0.1 || 10 || 79° || 80° || 81°
+| HEF-I || 1,030 || 0.1 || 0 || 0.1 || 10 || 79° || 80° || 81°
 |-
-| APDS || 1113 || 0.1 || N/A || N/A || N/A || 75° || 78° || 80°
+| APDS || 1,128 || 0.1 || N/A || N/A || N/A || 75° || 78° || 80°
 |-
 |}
 === Comparison with analogues ===
-''Give a comparative description of cannons/machine guns that have firepower equal to this weapon.''
+<!-- ''Give a comparative description of cannons/machine guns that have firepower equal to this weapon.'' -->
 * [[AK-230 (30 mm)|AK-230]] - 30 mm CIWS cannon found on the [[Pr. 206]], has a third the rate of fire, but each turret has 2 barrels, meaning that the Pr. 206 effectively fires 4,000 RPM
@@ Line 69: / Line 69: @@
 === 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:'''
@@ Line 84: / Line 84: @@
 == 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 ==
 <!-- ''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 2: / Line 2: @@
 ''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 '''JM61''' is a Japanese naval cannon. It is a version of the [[JM61A1 (20 mm)|'''JM61A1''']] rotary aircraft cannon equipped on Japanese coastal vessels.
+The '''20 mm JM61''' is a Japanese naval cannon. It is a version of the [[JM61A1 (20 mm)|20 mm JM61A1]] rotary aircraft cannon equipped on Japanese jet fighters.
 === Vehicles equipped with this weapon ===
@@ Line 63: / Line 63: @@
 * [[AK-230 (30 mm)|AK-230]] - 30 mm CIWS cannon found on the [[Pr. 206]], has a third the rate of fire, but each turret has 2 barrels, meaning that the Pr. 206 effectively fires 4,000 RPM
-* [[30 mm/54 AK-630 (30 mm)|30 mm/54 AK-630]] - 30 mm CIWS cannon mounted on the [[MPK Pr.12412]], has an even higher rate of fire than the JM61 at 5,000 RPM, but no access to any armour piercing rounds
+* [[30 mm/54 AK-630 (30 mm)|30 mm/54 AK-630]] - 30 mm CIWS cannon mounted on the [[MPK Pr.12412]], has an even higher rate of fire than the JM61 at 5,000 RPM, but no access to any armour-piercing rounds
 == Usage in battles ==

@@ Line 2: / Line 2: @@
 ''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 '''JM61''' is a version of the [[JM61A1 (20 mm)|'''JM61A1''']] rotary aircraft cannon equipped on Japanese coastal vessels.
+The '''JM61''' is a Japanese naval cannon. It is a version of the [[JM61A1 (20 mm)|'''JM61A1''']] rotary aircraft cannon equipped on Japanese coastal vessels.
 === Vehicles equipped with this weapon ===
@@ Line 10: / Line 10: @@
 == 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.'' -->
-The JM61 has the second-highest rate of fire of any naval weapon, at a whopping 3000 rounds per minute (RPM). As such, the JM61 can shred through any boat with ease and even dissect larger ships. There is also a modification available to lower the rate of fire to 450 RPM, but the decrease in effectiveness is not worth the extra time of continuous fire.
+The JM61 has the second-highest rate of fire of any naval weapon, at a whopping 3,000 rounds per minute (RPM). As such, the JM61 can shred through any boat with ease and even dissect larger ships. There is also a modification available to lower the rate of fire to 450 RPM, but the decrease in effectiveness is not worth the extra time of continuous fire.
 === Available ammunition ===
@@ Line 62: / Line 62: @@
 ''Give a comparative description of cannons/machine guns that have firepower equal to this weapon.''
-* [[AK-230 (30 mm)|AK-230]] - 30 mm CIWS cannon found on the [[Pr. 206]]<nowiki/>s, has a third the rate of fire, but each turret has 2 barrels, meaning that the Pr. 206 effectively fires 4000 RPM
+* [[AK-230 (30 mm)|AK-230]] - 30 mm CIWS cannon found on the [[Pr. 206]], has a third the rate of fire, but each turret has 2 barrels, meaning that the Pr. 206 effectively fires 4,000 RPM
-* [[30 mm/54 AK-630 (30 mm)|30 mm/54 AK-630]] - 30 mm CIWS cannon mounted on the [[MPK Pr.12412]], has an even higher rate of fire than the JM61 at 5000 RPM, but no access to any armour piercing rounds
+* [[30 mm/54 AK-630 (30 mm)|30 mm/54 AK-630]] - 30 mm CIWS cannon mounted on the [[MPK Pr.12412]], has an even higher rate of fire than the JM61 at 5,000 RPM, but no access to any armour piercing rounds
 == Usage in battles ==
@@ Line 87: / Line 87: @@
 == 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:''
 * [[M61 (20 mm)]]
@@ Line 95: / Line 97: @@
 == External links ==
 ''Paste links to sources and external resources, such as:''
 * ''topic on the official game forum;''
 * ''other literature.''
 {{Japan naval cannons}}
 [[Category:Naval cannons]]

← Older revision	Revision as of 00:11, 6 November 2019
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