Difference between revisions of "AN/M3 (20 mm)"

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{{About
 
| about = aircraft cannon '''{{PAGENAME}}'''
 
| usage = other uses
 
| link = M3 (Disambiguation)
 
}}
 
 
 
== 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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The Army-Navy Model 3, or AN/M3 for short, was a 20mm aircraft-mounted autocannon used by both the US Army Air Forces (later the USAF) and US Navy. The cannon was based off of the British [[Hispano Mk.V (20 mm)|Hispano Mk.V]], itself a modification of the Swiss Hispano-Suiza [[Hispano 404 (20 mm)|H.S.404]]. Compared to its earlier cousin, the [[AN/M2 (20 mm)|AN/M2]], the AN/M3 had a faster rate of fire and used lubrication, percussion-primed ammunition that was less prone to jamming, which was a major problem on the [[Hispano Mk.II (20 mm)|Hispano Mk.II]]. Lubrication was provided by a pump that dropped semi-fluid lubricating oil (LSA) onto the rounds before firing. The gun had a gas-assisted blowback operation, with recoil being used to load the next round.
The Army-Navy Model 3, or AN/M3 for short, was a 20 mm aircraft-mounted autocannon used by both the US Army Air Forces (later the USAF) and US Navy. The cannon was based on the British [[Hispano Mk.V (20 mm)|Hispano Mk.V]], itself a modification of the Swiss Hispano-Suiza [[Hispano 404 (20 mm)|H.S.404]]. Compared to its earlier cousin, the [[AN/M2 (20 mm)|AN/M2]], the AN/M3 had a faster rate of fire and used lubricated, percussion-primed ammunition that was less prone to jamming, which was a major problem on the [[Hispano Mk.II (20 mm)|Hispano Mk.II]]. Lubrication was provided by a pump that dropped semi-fluid lubricating oil (LSA) onto the rounds before firing. The gun had a gas-assisted blowback operation, with recoil being used to load the next round.
 
  
The US Navy extensively used the AN/M3 on fighters starting in late WW2 and until the 1950s, when they were replaced by more modern cannons and air-to-air missiles. The cannon was mounted, usually 2 to a wing, on planes such as the [[F4U-4B]] and later versions of the Corsair, the Grumman [[F8F-1B]] Bearcat, and the [[F9F-5|F9F Panther]] jet fighter.
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The US Navy extensively used the AN/M3 on fighters starting in late WW2 and until the 1950s, when they were replaced by more modern cannons and air-to-air missiles. The cannon was mounted, usually 2 to a wing, on planes such as the [[F4U-4B]] and later versions of the Corsair, the Grumman [[F8F-1B]] Bearcat, and the [[F9F-5|F9F Panther]] jet fighter.
  
 
=== Vehicles equipped with this weapon ===
 
=== Vehicles equipped with this weapon ===
<!-- ''List out vehicles that are equipped with the weapon.'' -->
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{{Navigation-Start|Vehicles equipped with this weapon}}
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* [[F8F-1B]], [[F8F-1B (France)]]
{{Navigation-Line|Fighters}}{{Specs-Link|f4u-4b}}{{-}}{{Specs-Link|f4u-4b_vmf_214}}{{-}}{{Specs-Link|f4u-7}}{{-}}{{Specs-Link|f8f1b}}{{-}}{{Specs-Link|f8f1b_france}}
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* [[F4U-4B]]
{{Navigation-Line|Twin-engine fighters}}{{Specs-Link|f7f1}}{{-}}{{Specs-Link|f7f3}}
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* [[F4U-7]]
{{Navigation-Line|Jet fighters}}{{Specs-Link|f2h-2}}{{-}}{{Specs-Link|f3d_1}}{{-}}{{Specs-Link|f9f-2}}{{-}}{{Specs-Link|f9f-5}}{{-}}{{Specs-Link|f9f-8}}
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* [[F9F-2|F9F]]  (all variants)
{{Navigation-Line|Attackers}}{{Specs-Link|douglas_ad_2}}{{-}}{{Specs-Link|douglas_ad_4}}{{-}}{{Specs-Link|douglas_ad_4_france}}
 
{{Navigation-Line|Helicopters}}{{Specs-Link|h_34|short}}&nbsp;(Suspended)
 
{{Navigation-End}}
 
  
 
== General info ==
 
== General info ==
''Tell us about the tactical and technical characteristics of the cannon or machine gun.''
 
 
 
=== Available shells ===
 
=== Available shells ===
<!--''Describe the shells that are available for the cannon 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).''-->
 
  
* Default Belt: HEF-I/HEF-I/API-T
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=== Comparison with analogues ===
 +
[[MG 151/20 (20 mm)|MG 151/20]] - Powerful Minengeschoss shells are superior to AN/M3 ammunition.  However, the AN/M3 has faster fire rate and about 30 m/s faster shell velocity, making ranged shots easier.  The AN/M3 also has more hitting power and is more consistent than its German cousin.
  
* Universal: HEF-I/API-T
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[[Hispano Mk.V (20 mm)|Hispano Mk.V]]- As the AN/M3 is an American copy of the Hispano Mk V, these two weapons are almost completely identical.  Historically, the AN/M3 was more prone to jamming than its British counterpart.
* Ground Targets: API-T/API-T/HEF-I/Practice
 
* Air Targets: HEF-I/API-T/HEF-I/HEF-I
 
* Stealth: HEF-I/HEF-I/HEF-I/Practice
 
  
=== Comparison with analogues ===
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[[AN/M2 (20 mm)|AN/M2]]- Superior in every way.  The AN/M3 is more reliable and has higher fire rate compared to its older brother.
<!-- ''Give a comparative description of cannons/machine guns, that have firepower equal to these type of weapons.'' -->
 
  
* [[MG 151/20 (20 mm)|MG 151/20]] - Powerful Minengeschoss shells are superior to AN/M3 ammunition. However, the AN/M3 has a faster fire rate and about 30 m/s faster shell velocity, making ranged shots easier. The AN/M3 also has more hitting power and is more consistent than its German cousin.
+
== Usage in the battles ==
* [[Hispano Mk.V (20 mm)|Hispano Mk.V]]- As the AN/M3 is an American copy of the Hispano Mk V, these two weapons are almost completely identical. Historically, the AN/M3 was more prone to jamming than its British counterpart.
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The high fire rate of this cannon makes it a great choice for engaging almost any enemy fighter or bomber. The only limitation is the pilot's skill and the speed and maneuverability of the plane it is mounted on. The HEF-SAPI (High Explosive Fragmentation - Semi Armor Piercing Incendiary) round can easily rip wings into shreds or set fuel tanks on fire. However, it is important to fire in short bursts, as the high fire rate will drain your ammunition. Though not as prone to jamming as the [[AN/M2 (20 mm)|AN/M2]] before it, the AN/M3 can still jam easily if the New 20mm Cannons modification is not yet unlocked.
* [[AN/M2 (20 mm)|AN/M2]]- Superior in every way. The AN/M3 is more reliable and has a higher fire rate compared to its older brother.
 
  
== Usage in battles ==
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=== Pros and cons ===
<!-- ''Describe the cannon/machine gun in the game - its distinctive features, tactics of usage against the main 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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'''Pros:'''
The high fire rate of this cannon makes it a great choice for engaging almost any enemy fighter or bomber. The only limitation is the pilot's skill and the speed and manoeuvrability of the plane it is mounted on. The HEF-SAPI (High Explosive Fragmentation - Semi Armor Piercing Incendiary) round can easily rip wings into shreds or set fuel tanks on fire. However, it is important to fire in short bursts, as the high fire rate will drain your ammunition. Though not as prone to jamming as the [[AN/M2 (20 mm)|AN/M2]] before it, the AN/M3 can still jam easily if the New 20mm Cannons modification is not yet unlocked.
 
  
=== Pros and cons ===
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* '''HEF-SAPI ammo is great for tearing up wings and other modules.'''
<!-- ''Summarize and briefly evaluate the weaponry in terms of its characteristics and combat effectiveness. Mark pros and cons as a list.'' -->
 
  
'''Pros:'''
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* '''High fire rate'''
 +
* '''Often 4 cannons are present on the aircraft, providing massive amounts of firepower.'''
 +
* '''Stealth rounds have lots of HEI, HEF, and HEF-SAPI ammo.  Lack of tracers makes it hard for enemies to evade shots.'''
 +
* '''Often very generous amount of ammunition, as common on US aircraft.'''
  
* HEF-SAPI ammo is great for tearing up wings and other modules
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*
* High fire rate
 
* Often 4 cannons are present on the aircraft, providing massive amounts of firepower
 
* Stealth rounds have lots of HEI, HEF, and HEF-SAPI ammo, with the lack of tracers makes it hard for enemies to evade shots
 
* Often very generous amount of ammunition, as common on US aircraft
 
  
 
'''Cons:'''
 
'''Cons:'''
  
* ''Air Targets'' belt has no tracers (Air RB), making aiming hard
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* '''Air Targets belt has no tracers (Air RB), making aiming hard.'''
* Prone to jamming, especially when stock
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* '''Prone to jamming, especially when stock.'''
* Tendency to "spark" and deal minimal damage, especially when hitting fuselages
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* '''Tendency to spark and deal minimal damage, especially when hitting fuselages.'''
* ''Default'' belts are far inferior to the ''Air Targets'' and ''Stealth'' belts
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* '''Default belts are far inferior to the "air targets" and "stealth" belts.'''
* Horrific stock accuracy
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 +
*
  
== History ==
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== Historical part ==
''Examine the history of the creation and combat usage of this weapon. If the historical reference turns out to be too big, take it to a separate article, taking a link to an article about the vehicle 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></nowiki></code>, as well as adding them at the end of the article.''
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''Examine the history of the creation and combat usage of this weapon. If the historical reference turns out to be big one, take it into a separate article and add a link to it by using the "main" template. In the end be sure to include references to sources.''
  
 
== Media ==
 
== Media ==
 
''An excellent addition to the article would be a video guide, as well as screenshots from the game and photos.''
 
''An excellent addition to the article would be a video guide, as well as screenshots from the game and photos.''
  
== See also ==
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== Read also ==
<!-- ''Links to the articles on the War Thunder Wiki that you think will be useful for the reader, for example:''
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[[AN/M2 (20 mm)|AN/M2]]
* ''reference to the article about the variant of the cannon/machine gun;''
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* ''references to approximate analogues by other nations and research trees.'' -->
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[[Hispano Mk.V (20 mm)|Hispano Mk.V]]
  
* [[AN/M2 (20 mm)|AN/M2]]
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[[F8F-1B]]
* [[Hispano Mk.V (20 mm)|Hispano Mk.V]]
 
  
== External links ==
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[[F4U-4B]]
<!-- ''Paste links to sources and external resources, such as:''
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== Sources ==
* ''topic on the official game forum;''
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''Paste links to sources and external resources, such as:''
* ''encyclopedia page on the weapon;''
 
* ''other literature.'' -->
 
  
* [[wikipedia:Hispano-Suiza_HS.404|Wikipedia - Hispano-Suiza HS.404]]
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https://en.wikipedia.org/wiki/Hispano-Suiza_HS.404
* [http://www.navweaps.com/Weapons/WNUS_20mm_mk16.php NavWeaps - 20 mm Mark 16]
 
  
{{USA aircraft cannons}}
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http://www.navweaps.com/Weapons/WNUS_20mm_mk16.php
  
 
[[Category:Aircraft cannons]]
 
[[Category:Aircraft cannons]]

Revision as of 23:21, 20 February 2019

Description

The Army-Navy Model 3, or AN/M3 for short, was a 20mm aircraft-mounted autocannon used by both the US Army Air Forces (later the USAF) and US Navy. The cannon was based off of the British Hispano Mk.V, itself a modification of the Swiss Hispano-Suiza H.S.404. Compared to its earlier cousin, the AN/M2, the AN/M3 had a faster rate of fire and used lubrication, percussion-primed ammunition that was less prone to jamming, which was a major problem on the Hispano Mk.II. Lubrication was provided by a pump that dropped semi-fluid lubricating oil (LSA) onto the rounds before firing. The gun had a gas-assisted blowback operation, with recoil being used to load the next round.

The US Navy extensively used the AN/M3 on fighters starting in late WW2 and until the 1950s, when they were replaced by more modern cannons and air-to-air missiles. The cannon was mounted, usually 2 to a wing, on planes such as the F4U-4B and later versions of the Corsair, the Grumman F8F-1B Bearcat, and the F9F Panther jet fighter.

Vehicles equipped with this weapon

General info

Available shells

Comparison with analogues

MG 151/20 - Powerful Minengeschoss shells are superior to AN/M3 ammunition. However, the AN/M3 has faster fire rate and about 30 m/s faster shell velocity, making ranged shots easier. The AN/M3 also has more hitting power and is more consistent than its German cousin.

Hispano Mk.V- As the AN/M3 is an American copy of the Hispano Mk V, these two weapons are almost completely identical. Historically, the AN/M3 was more prone to jamming than its British counterpart.

AN/M2- Superior in every way. The AN/M3 is more reliable and has higher fire rate compared to its older brother.

Usage in the battles

The high fire rate of this cannon makes it a great choice for engaging almost any enemy fighter or bomber. The only limitation is the pilot's skill and the speed and maneuverability of the plane it is mounted on. The HEF-SAPI (High Explosive Fragmentation - Semi Armor Piercing Incendiary) round can easily rip wings into shreds or set fuel tanks on fire. However, it is important to fire in short bursts, as the high fire rate will drain your ammunition. Though not as prone to jamming as the AN/M2 before it, the AN/M3 can still jam easily if the New 20mm Cannons modification is not yet unlocked.

Pros and cons

Pros:

  • HEF-SAPI ammo is great for tearing up wings and other modules.
  • High fire rate
  • Often 4 cannons are present on the aircraft, providing massive amounts of firepower.
  • Stealth rounds have lots of HEI, HEF, and HEF-SAPI ammo. Lack of tracers makes it hard for enemies to evade shots.
  • Often very generous amount of ammunition, as common on US aircraft.

Cons:

  • Air Targets belt has no tracers (Air RB), making aiming hard.
  • Prone to jamming, especially when stock.
  • Tendency to spark and deal minimal damage, especially when hitting fuselages.
  • Default belts are far inferior to the "air targets" and "stealth" belts.

Historical part

Examine the history of the creation and combat usage of this weapon. If the historical reference turns out to be big one, take it into a separate article and add a link to it by using the "main" template. In the end be sure to include references to sources.

Media

An excellent addition to the article would be a video guide, as well as screenshots from the game and photos.

Read also

AN/M2

Hispano Mk.V

F8F-1B

F4U-4B

Sources

Paste links to sources and external resources, such as:

https://en.wikipedia.org/wiki/Hispano-Suiza_HS.404

http://www.navweaps.com/Weapons/WNUS_20mm_mk16.php