M197 (20 mm) - Revision history

U22067555: Added AH-1W and AH-1W (China)

2024-03-27T05:54:59Z

Added AH-1W and AH-1W (China)

U38088265: /* Available ammunition */ Converted to transclusion

2023-07-04T13:49:01Z

‎Available ammunition: Converted to transclusion

U38088265: /* Available ammunition */ Updated

2022-11-09T15:50:19Z

‎Available ammunition: Updated

U38088265: /* Available ammunition */ Updated

2022-10-08T15:30:00Z

‎Available ammunition: Updated

U44629479: Edits

2022-09-25T07:50:00Z

Edits

U137319744: /* See also */ added link to the M195

2022-09-25T04:24:32Z

‎See also: added link to the M195

U38088265: /* Vehicles equipped with this weapon /, / Available ammunition */ Updated

2022-09-17T09:56:55Z

‎Vehicles equipped with this weapon: , ‎Available ammunition: Updated

U137319744: Added a history for the weapon

2022-09-17T03:07:00Z

Added a history for the weapon

U38088265: /* Vehicles equipped with this weapon */

2022-06-21T20:38:53Z

‎Vehicles equipped with this weapon

U38088265: /* Available ammunition */ Updated

2022-04-08T11:43:45Z

‎Available ammunition: Updated

@@ Line 10: / Line 10: @@
 * {{Specs-Link|ah_1s_late}}
 * {{Specs-Link|ah_1s}}
 * {{Specs-Link|ah_1z}}
@@ Line 67: / Line 69: @@
 {{USA aircraft cannons}}
 {{Japan aircraft cannons}}
 {{Israel aircraft cannons}}
 [[Category:Aircraft cannons]]

@@ Line 25: / Line 25: @@
 * '''Stealth:''' {{Annotation|HEF-I|High-explosive fragmentation incendiary}}{{-}}{{Annotation|HEF-I|High-explosive fragmentation incendiary}}{{-}}{{Annotation|HEF-I|High-explosive fragmentation incendiary}}{{-}}{{Annotation|AP-I|Armour-piercing incendiary}}
-{| class="wikitable sortable" style="text-align:center" width="100%"
+{{:{{PAGENAME}}/Ammunition|HEI-T*, AP-I, HEF-I}}
 === Comparison with analogues ===

@@ Line 33: / Line 33: @@
 ! 10 m !! 100 m !! 500 m !! 1,000 m !! 1,500 m !! 2,000 m
 |-
-| Default || 40 || 36 || 22 || 12 || 6 || 4
+| Default || 40 || 36 || 22 || 12 || 6 || 3
 |-
-| Universal || 40 || 36 || 22 || 12 || 6 || 4
+| Universal || 40 || 36 || 22 || 12 || 6 || 3
 |-
-| Air targets || 40 || 36 || 22 || 12 || 6 || 4
+| Air targets || 40 || 36 || 22 || 12 || 6 || 3
 |-
-| Armored targets || 40 || 36 || 22 || 12 || 6 || 4
+| Armored targets || 40 || 36 || 22 || 12 || 6 || 3
 |-
 | Stealth || 40 || 36 || 22 || 12 || 6 || 3
@@ Line 52: / Line 52: @@
 ! 10 m !! 100 m !! 500 m !! 1,000 m !! 1,500 m !! 2,000 m
 |-
-| HEI-T* || 4 || 4 || 4 || 4 || 4 || 4
+| HEI-T* || 2 || 2 || 2 || 2 || 2 || 2
 |-
 | HEF-I || 2 || 2 || 2 || 2 || 2 || 2
@@ Line 72: / Line 72: @@
 ! 0% !! 50% !! 100%
 |-
-| HEI-T* || 1,030 || 0.1 || 0.2 || 0 || 119.2 || 79° || 80° || 81°
+| HEI-T* || 1,030 || 0.1 || 0.2 || 0 || 11.92 || 79° || 80° || 81°
 |-
 | HEF-I || 1,030 || 0.1 || 0.2 || 0.1 || 16 || 79° || 80° || 81°
@@ Line 106: / Line 106: @@
 == 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 33: / Line 33: @@
 ! 10 m !! 100 m !! 500 m !! 1,000 m !! 1,500 m !! 2,000 m
 |-
-| Default || 53 || 50 || 39 || 28 || 20 || 14
+| Default || 40 || 36 || 22 || 12 || 6 || 4
 |-
-| Universal || 53 || 50 || 39 || 28 || 20 || 14
+| Universal || 40 || 36 || 22 || 12 || 6 || 4
 |-
-| Air targets || 53 || 50 || 39 || 28 || 20 || 14
+| Air targets || 40 || 36 || 22 || 12 || 6 || 4
 |-
-| Armored targets || 53 || 50 || 39 || 28 || 20 || 14
+| Armored targets || 40 || 36 || 22 || 12 || 6 || 4
 |-
-| Stealth || 53 || 50 || 39 || 28 || 20 || 14
+| Stealth || 40 || 36 || 22 || 12 || 6 || 3
 |-
 |}
@@ Line 56: / Line 56: @@
 | HEF-I || 2 || 2 || 2 || 2 || 2 || 2
 |-
-| AP-I || 53 || 50 || 39 || 28 || 20 || 14
+| AP-I || 40 || 36 || 22 || 12 || 6 || 3
 |-
 |}
@@ Line 74: / Line 74: @@
 | HEI-T* || 1,030 || 0.1 || 0.2 || 0 || 119.2 || 79° || 80° || 81°
 |-
-| HEF-I || 1,030 || 0.15 || 0.2 || 0.1 || 16 || 79° || 80° || 81°
+| HEF-I || 1,030 || 0.1 || 0.2 || 0.1 || 16 || 79° || 80° || 81°
 |-
-| AP-I || 1,030 || 0.15 || N/A || N/A || N/A || 47° || 56° || 65°
+| AP-I || 1,030 || 0.1 || N/A || N/A || N/A || 47° || 56° || 65°
 |-
 |}

@@ Line 106: / Line 106: @@
 == 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:''
-* [[M195 (20 mm)]]: Original Cobra Vulcan variant
+* [[M195 (20 mm)]] - Original Cobra Vulcan variant
 == External links ==

@@ Line 5: / Line 5: @@
 <!-- ''List out vehicles that are equipped with the weapon.'' -->
 * {{Specs-Link|ah_1f}}
 * {{Specs-Link|ah_1f_iaf}}
@@ Line 15: / Line 14: @@
 == General info ==
 <!-- ''Tell us about the tactical and technical characteristics of the cannon or machine gun.'' -->
-The M197 is a light weight M61 Vulcan toned down with only 3 barrels (as opposed to 6) and shooting at 750 rpm (vs 6,000 rpm) to reduce the recoil strain on platforms utilising the weapon.
+The M197 is a lightweight M61 Vulcan toned down with only 3 barrels (as opposed to 6) and shooting at 750 rpm (vs 6,000 rpm) to reduce the recoil strain on platforms utilising the weapon.
 === 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).'' -->
-* '''Default:''' {{Annotation|P|Practice}}{{-}}{{Annotation|HEF-I|High-explosive fragmentation incendiary}}{{-}}{{Annotation|HEF-I|High-explosive fragmentation incendiary}}{{-}}{{Annotation|API-T|Armour-piercing incendiary tracer}}{{-}}{{Annotation|AP-I|Armour-piercing incendiary}}
+* '''Default:''' {{Annotation|HEI-T*|High-explosive incendiary tracer (self-destroying)}}{{-}}{{Annotation|HEF-I|High-explosive fragmentation incendiary}}{{-}}{{Annotation|HEF-I|High-explosive fragmentation incendiary}}{{-}}{{Annotation|AP-I|Armour-piercing incendiary}}
-* '''Universal:''' {{Annotation|HEF-I|High-explosive fragmentation incendiary}}{{-}}{{Annotation|API-T|Armour-piercing incendiary tracer}}{{-}}{{Annotation|AP-I|Armour-piercing incendiary}}
+* '''Universal:''' {{Annotation|HEI-T*|High-explosive incendiary tracer (self-destroying)}}{{-}}{{Annotation|AP-I|Armour-piercing incendiary}}{{-}}{{Annotation|HEF-I|High-explosive fragmentation incendiary}}{{-}}{{Annotation|AP-I|Armour-piercing incendiary}}
-* '''Air targets:''' {{Annotation|HEF-I|High-explosive fragmentation incendiary}}{{-}}{{Annotation|HEF-I|High-explosive fragmentation incendiary}}{{-}}{{Annotation|HEF-I|High-explosive fragmentation incendiary}}{{-}}{{Annotation|API-T|Armour-piercing incendiary tracer}}{{-}}{{Annotation|AP-I|Armour-piercing incendiary}}
+* '''Air targets:''' {{Annotation|HEI-T*|High-explosive incendiary tracer (self-destroying)}}{{-}}{{Annotation|HEF-I|High-explosive fragmentation incendiary}}{{-}}{{Annotation|HEF-I|High-explosive fragmentation incendiary}}{{-}}{{Annotation|AP-I|Armour-piercing incendiary}}
-* '''Armored targets:''' {{Annotation|API-T|Armour-piercing incendiary tracer}}{{-}}{{Annotation|AP-I|Armour-piercing incendiary}}{{-}}{{Annotation|AP-I|Armour-piercing incendiary}}
+* '''Armored targets:''' {{Annotation|HEI-T*|High-explosive incendiary tracer (self-destroying)}}{{-}}{{Annotation|AP-I|Armour-piercing incendiary}}{{-}}{{Annotation|AP-I|Armour-piercing incendiary}}{{-}}{{Annotation|AP-I|Armour-piercing incendiary}}
 * '''Stealth:''' {{Annotation|HEF-I|High-explosive fragmentation incendiary}}{{-}}{{Annotation|HEF-I|High-explosive fragmentation incendiary}}{{-}}{{Annotation|HEF-I|High-explosive fragmentation incendiary}}{{-}}{{Annotation|AP-I|Armour-piercing incendiary}}
@@ Line 53: / Line 52: @@
 ! 10 m !! 100 m !! 500 m !! 1,000 m !! 1,500 m !! 2,000 m
 |-
-| P || 15 || 13 || 10 || 8 || 7 || 6
+| HEI-T* || 4 || 4 || 4 || 4 || 4 || 4
 |-
 | HEF-I || 2 || 2 || 2 || 2 || 2 || 2
@@ Line 67: / Line 64: @@
 ! rowspan="2" data-sort-type="text" | Ammunition
 ! rowspan="2" | Velocity<br>(m/s)
-! rowspan="2" | Projectile<br>Mass (kg)
+! rowspan="2" | Projectile<br>mass (kg)
 ! rowspan="2" | Fuse delay<br>(m)
 ! rowspan="2" | Fuse sensitivity<br>(mm)
-! rowspan="2" | Explosive Mass<br>(TNT equivalent) (g)
+! rowspan="2" | Explosive mass<br>(TNT equivalent) (g)
 ! colspan="3" | Ricochet
 |-
 ! 0% !! 50% !! 100%
 |-
-| P || 1,030 || 0.1 || N/A || N/A || N/A || 47° || 56° || 65°
+| HEI-T* || 1,030 || 0.1 || 0.2 || 0 || 119.2 || 79° || 80° || 81°
 |-
 | HEF-I || 1,030 || 0.15 || 0.2 || 0.1 || 16 || 79° || 80° || 81°
@@ Line 104: / Line 99: @@
 == History ==
-In late 1967, The United States Army noticed from combat experience in Vietnam that the [[M134 Minigun (7.62 mm)|M134 Minigun]] was inadequate for use on their gunships such as the [[AH-1G|AH-1G Cobra]]. To increase the effective firepower of the Cobra, the US Army mounted a variant of the [[M61 (20 mm)|M61 Vulcan]] cannon used on Air Force fighter aircraft, but with a lower rate of fire to reduce recoil and modifications to prevent the muzzle blast from damaging any internal components. The resulting variant of the Vulcan was the [[M195 (20 mm)|M195]] cannon which was mounted as part of the M35 Helicopter Armament Subsystem on the wings of the AH-1G Cobra. However, the M195 still generated significant recoil for the Cobra so a new cannon with a similar rate of fire, but only three barrels mounted under the nose was developed receiving the designation M197. The M197 became standard armament for Cobra series starting with [[AH-1S]] Cobra in the M97 Armament system and continues to serve to the latest variant, the [[AH-1Z|AH-1Z Zulu Cobra]]. The M197 also was developed into the GPU-2/A gun pod which contains the cannon, 300 rounds of ammunition, and a Ni-Cad rechargeable battery to serve as a independent power supply. This gun pod was used on the both Marine Crops OV-10 Bronco and the Air Force A-37 Dragonfly fixed wing attack aircraft.
+<!-- ''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 123: / Line 119: @@
 {{USA aircraft cannons}}
 {{Japan aircraft cannons}}
 {{Israel aircraft cannons}}
 [[Category:Aircraft cannons]]

@@ Line 7: / Line 7: @@
 * {{Specs-Link|a_129_cbt}}
 * {{Specs-Link|ah_1f}}
 * {{Specs-Link|ah_1s_early}}
 * {{Specs-Link|ah_1s_late}}
@@ Line 123: / Line 124: @@
 {{Japan aircraft cannons}}
 {{Italy aircraft cannons}}
 [[Category:Aircraft cannons]]

M197 (20 mm) - Revision history

U22067555: Added AH-1W and AH-1W (China)

U38088265: /* Available ammunition */ Converted to transclusion

U38088265: /* Available ammunition */ Updated

U38088265: /* Available ammunition */ Updated

U44629479: Edits

U137319744: /* See also */ added link to the M195

U38088265: /* Vehicles equipped with this weapon */, /* Available ammunition */ Updated

U137319744: Added a history for the weapon

U38088265: /* Vehicles equipped with this weapon */

U38088265: /* Available ammunition */ Updated

U38088265: /* Vehicles equipped with this weapon /, / Available ammunition */ Updated