M129 (40 mm) - Revision history

U44629479: Edits

2023-06-25T05:28:34Z

Edits

U38088265: /* Available ammunition */ Updated

2022-10-08T16:01:25Z

‎Available ammunition: Updated

U38088265: /* Available ammunition */ Updated

2022-09-17T15:21:51Z

‎Available ammunition: Updated

U44629479: /* External links */ Edits

2022-09-14T15:31:14Z

‎External links: Edits

U44629479: /* Vehicles equipped with this weapon */ Update "Drone Age"

2022-09-14T15:29:41Z

‎Vehicles equipped with this weapon: Update "Drone Age"

U38088265 at 20:35, 21 June 2022

2022-06-21T20:35:58Z

U38088265: /* Vehicles equipped with this weapon */

2022-06-21T20:34:57Z

‎Vehicles equipped with this weapon

U28580205: /* History */

2021-03-25T20:59:00Z

‎History

U3312106: /* Available ammunition */

2021-03-18T11:44:26Z

‎Available ammunition

U38088265: /* Available ammunition */ Edits

2021-03-18T09:46:16Z

‎Available ammunition: Edits

@@ Line 79: / Line 79: @@
 == Media ==
 <!-- ''Excellent additions to the article would be video guides, screenshots from the game, and photos.'' -->
-{{Youtube-gallery|XZvbLzP3sP4|'''TWIN 40mm Grenade Launchers {{!}} Cobra Support''' - ''PhlyDaily''}}
+;Videos
 == See also ==

@@ Line 25: / Line 25: @@
 ! 10 m !! 100 m !! 500 m !! 1,000 m !! 1,500 m !! 2,000 m
 |-
-| Default || 76 || 76 || 76 || 76 || 76 || 76
+| Default || 51 || 51 || 51 || 51 || 51 || 51
 |-
 |}

@@ Line 15: / Line 15: @@
 <!-- ''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|HEATGR|High-explosive anti-tank grenade}}
+* '''Default:''' {{Annotation|HEATGR|High explosive anti-tank grenade}}
 {| class="wikitable" style="text-align:center" width="100%"
@@ Line 29: / Line 29: @@
 |}
 {| class="wikitable" style="text-align:center" width="100%"
-! colspan="9" | Shell details
+! colspan="10" | Belt details
 |-
-! rowspan="2" data-sort-type="text" | Shell
+! rowspan="2" data-sort-type="text" | Belt
 ! 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%
 |-
-| HEATGR || 241 || 0.25 || 0.02 || 0.1 || 40.96 || 62° || 69° || 73°
+| Default || HEATGR || 244 || 0.25 || 0.02 || 0.1 || 60.8 || 62° || 69° || 73°
 |-
 |}

@@ Line 90: / Line 90: @@
 * ''topic on the official game forum;''
 * ''other literature.''-->
-;References:
 <references />
-;Bibliography:
+;Bibliography
 * <nowiki>GlobalSecurity.org</nowiki> "M129 40mm Grenade Launcher." ''<nowiki>GlobalSecurity.org</nowiki>'', [https://www.globalsecurity.org/military/systems/aircraft/systems/m129.htm Website]. Accessed 13 Mar. 2021.
 * <nowiki>GlobalSecurity.org</nowiki> "M75 40mm Grenade Launcher." ''<nowiki>GlobalSecurity.org</nowiki>'', [https://www.globalsecurity.org/military/systems/aircraft/systems/m75.htm Website]. Accessed 13 Mar. 2021.

@@ Line 8: / Line 8: @@
 * {{Specs-Link|ah_1g_iaf}}&nbsp;(Modification)
 * {{Specs-Link|ah_1q_iaf}}&nbsp;(Modification)
 == General info ==

← Older revision		Revision as of 20:35, 21 June 2022
Line 103:		Line 103:

	{{USA aircraft cannons}}		{{USA aircraft cannons}}
		+	{{Israel aircraft cannons}}

	[[Category:Aircraft cannons]]		[[Category:Aircraft cannons]]

@@ Line 6: / Line 6: @@
 * {{Specs-Link|ah_1g}}&nbsp;(Modification)
 * {{Specs-Link|uh_1b}}&nbsp;(Modification)
 * {{Specs-Link|uh_1c}}&nbsp;(Modification)

← Older revision		Revision as of 20:59, 25 March 2021
Line 69:		Line 69:

	Development of an automatic grenade launcher began in the late 1950s by Philco-Ford.<ref name="Centaurs_40mm">Peake "40mm Grenade Launchers"</ref> A patent was filed in 1961 of the new automatic grenade launcher and the grenade launcher was designated with ''XM75''.<ref name="GSO_M75"><nowiki>GlobalSecurity.org</nowiki> "M75 40mm Grenade Launcher"</ref> By late October 1962, this weapon system was tested at Springfield Armory as a feasible weapon on the nose below the UH-1 helicopter in a turret system designated ''XM138''. The weapon was subsequently adopted in 1963 as the ''M75'' and sent to Vietnam attached to UH-1As in 1964.<ref name="Centaurs_40mm"/> The turret system would be redesigned by 1964 and then accepted in 1966 as the ''M5'' armament subsystem.<ref name="Centaurs_40mm"/><ref name="GSO_M75"/> However, the M75 grenade launcher had drawbacks in its design. A 1964 report on US Army aircraft armament showed that the m75 could leave live rounds in the breech after firing stops, which then could allow for a "run-away" with the launcher firing without any gunner input.<ref name="GSO_M75"/> The M75 also produced excessive torque when firing due to the barrel position below the cam assembly, which also led to rapid parts wear.<ref name="Centaurs_40mm"/>		Development of an automatic grenade launcher began in the late 1950s by Philco-Ford.<ref name="Centaurs_40mm">Peake "40mm Grenade Launchers"</ref> A patent was filed in 1961 of the new automatic grenade launcher and the grenade launcher was designated with ''XM75''.<ref name="GSO_M75"><nowiki>GlobalSecurity.org</nowiki> "M75 40mm Grenade Launcher"</ref> By late October 1962, this weapon system was tested at Springfield Armory as a feasible weapon on the nose below the UH-1 helicopter in a turret system designated ''XM138''. The weapon was subsequently adopted in 1963 as the ''M75'' and sent to Vietnam attached to UH-1As in 1964.<ref name="Centaurs_40mm"/> The turret system would be redesigned by 1964 and then accepted in 1966 as the ''M5'' armament subsystem.<ref name="Centaurs_40mm"/><ref name="GSO_M75"/> However, the M75 grenade launcher had drawbacks in its design. A 1964 report on US Army aircraft armament showed that the m75 could leave live rounds in the breech after firing stops, which then could allow for a "run-away" with the launcher firing without any gunner input.<ref name="GSO_M75"/> The M75 also produced excessive torque when firing due to the barrel position below the cam assembly, which also led to rapid parts wear.<ref name="Centaurs_40mm"/>
		+	[[File:M129 launcher.jpg\|x250px\|right\|thumb\|none\|The M129 grenade launcher]]

	The issues with the M75 caused Philco-Ford to begin developing an improved design in 1963 as the ''XM129''.<ref name="GSO_M75"/><ref name="GSO_M129"><nowiki>GlobalSecurity.org</nowiki> "M129 40mm Grenade Launcher"</ref> The most notable change was the placement of the barrel from being below the operating drum to concentric with the drum. The issue of the live round being left in the breech was also resolved as well. Tests of the XM129 began in 1965, with results proving well enough that the development of the M75 grenade launcher was halted in 1967 as the XM129, now standardized as the '''M129''', took its place.<ref name="GSO_M75"/>		The issues with the M75 caused Philco-Ford to begin developing an improved design in 1963 as the ''XM129''.<ref name="GSO_M75"/><ref name="GSO_M129"><nowiki>GlobalSecurity.org</nowiki> "M129 40mm Grenade Launcher"</ref> The most notable change was the placement of the barrel from being below the operating drum to concentric with the drum. The issue of the live round being left in the breech was also resolved as well. Tests of the XM129 began in 1965, with results proving well enough that the development of the M75 grenade launcher was halted in 1967 as the XM129, now standardized as the '''M129''', took its place.<ref name="GSO_M75"/>

@@ 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).'' -->
-{| class="wikitable sortable" style="text-align:center" width="100%"
+* '''Default:''' {{Annotation|HEATGR|High-explosive anti-tank grenade}}
 ! colspan="7" | Penetration statistics
 |-
-! rowspan="2" data-sort-type="text" | Ammunition
+! rowspan="2" data-sort-type="text" | Belt
-! colspan="6" | '''Penetration @ 90° (mm)'''
+! colspan="6" | Penetration @ 0° Angle of Attack (mm)
 |-
 ! 10 m !! 100 m !! 500 m !! 1,000 m !! 1,500 m !! 2,000 m
 |-
-| HEATGR || 76 || 76 || 76 || 76 || 76 || 76
+| Default || 76 || 76 || 76 || 76 || 76 || 76
 |-
 |}
-{| class="wikitable sortable" style="text-align:center" width="100%"
+{| class="wikitable" style="text-align:center" width="100%"
-! colspan="10" | Shell details
+! colspan="9" | Shell details
 |-
-! rowspan="2" data-sort-type="text" | Ammunition
+! rowspan="2" data-sort-type="text" | Belt
-! rowspan="2" | Velocity<br />(m/s)
+! 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 delay<br>(m)
-! rowspan="2" | Fuse sensitivity<br />(mm)
+! 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%
 |-
-| HEATGR || 241 || 0.25 || 0.02 || 0.1 || 40.96 || +0.0° || 62° || 69° || 73°
+| Default || HEATGR || 241 || 0.25 || 0.02 || 0.1 || 40.96 || 62° || 69° || 73°
 |-
 |}