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{{Era|HCW}}
{{Status|Canon}}
{{Ratings}}
{{Weapon infobox
{{Weapon
|name="Four-forty"
| image=
|service=[[Human-Covenant War]]
| name=440 mm heavy artillery
| manufacturer=
| model=
| type=Artillery
| cost=
| size=
| damage per hit=
| magazine=
| maxammo=
| fire=
| ammotype= 440mm shells (assumed)
| operation=
| rate of fire=
| accuracy=
| range=
| era= [[Human-Covenant War]]
| counterpart=
| counterwep=
| affiliation= [[UNSC]]
}}
}}


A '''440mm''',or '''"Four-Forty"''' as referred to by UNSC troops, is a UNSC artillery weapon developed around [[2552]].<ref name="fourforty">'''[[Halo: Ghosts of Onyx]]''', ''page 116''</ref> As an artillery piece, it is most likely used to destroy Covenant forces from a distance, providing indirect fire support to Marines.
The colloquially named "'''four-forty'''" is an artillery piece weapon used by the [[United Nations Space Command]] armed forces. It had been introduced recently as of [[2552#October|October 2552]]. [[SPARTAN-III Program|Spartan-III]] trainee [[Dante-G188]] mistook a powerful, distant explosion on [[Onyx]] for the testing of a four-forty, which he claimed is a "big one"; however, whether he was referring to size, explosive yield, or both is unclear.<ref>'''Halo: Ghosts of Onyx''', ''page 116''</ref>


==Operational history==
==Type==
During a training mission on [[Onyx]], one of the [[SPARTAN-III]] candidates mistook an explosion caused by an [[Onyx Sentinel]] for a 440mm piece.<ref name="fourforty"/> It may be an explosive shell, or, more likely, an artillery rocket.
{{Conjecture}}
 
Though ''Halo: Ghosts of Onyx'' references the weapon as a type of artillery, its name is never explained. It is possible that the name is shorthand for a 4.40" (~112mm) bore, which would be appropriate for a fairly small artillery piece; however, this would conflict with Dante's description of the weapon as a "big one" unless the explosive yield is greater than the round's size would suggest. Alternately, "four-forty" may simply be a model designation such as "M440". A less likely possibility is that the four-forty is a large-scale mortar weapon, similar to Nazi Germany's 380mm [[Wikipedia:Sturmtiger|Sturmtiger]] and 600mm [[Wikipedia:Karl-Gerät|Karl-Gerät]].
==Size issue==
{{Conjecture end}}
{{Conjecturalization}}
The size of the projectile causes something of a discrepancy. If it is indeed 440mm, then it is unnecessarily large for an artillery piece especially given the UNSC's use of missiles and rockets instead. If it is .440mm, then it seems too small. However, if the .440 artillery uses [[Magnetic Accelerator Cannon|coilgun]] or [[railgun]] technology, then the size makes much more sense - the kinetic energy imparted by an electromagnetic projectile weapon means that the projectile does not need to be particularly large, or even explosive, to inflict tremendous damage upon a target. If it is 440mm, then it may be a ground-based anti-ship weapon. For now, either theory remains conjecture. When contacted, even Eric Nylund could not explain such an oddity. He mentioned, however, that a 440mm cannon could be used against orbital installations.<ref>[[Letter - RE:Four Forty Artillery]]</ref> This however, would only make sense if the weapon was a direct-fire anti-ship magnetic cannon. A .440 magnetic cannon could not be considered artillery, because it would not be an indirect fire weapon, leaving the 440mm as the only possibility.
 
It could entirely be possible that it is a Mortar weapon, similar to large scale World War 2 Mortars, like the 380mm Sturmtiger or the 600mm Karl-Gerät.{{Conjecturalization End}}


==List of appearances==
==List of appearances==
*[[Halo: Ghosts of Onyx]] {{1st}}
*''[[Halo: Ghosts of Onyx]]'' {{Fm}}


==Sources==
==Sources==
<references/>
{{Ref/Sources}}


{{UNSC Heavy Weapons}}
{{UNSC heavy weapons}}
[[Category:Weapons]]
[[Category:Artillery]]
[[Category:Human Weapons]]
[[Category:Projectile weapons]]
[[Category:UNSC ground weapons]]

Latest revision as of 18:49, August 28, 2023

"Four-forty"
Service history

In service:

Human-Covenant War

 

The colloquially named "four-forty" is an artillery piece weapon used by the United Nations Space Command armed forces. It had been introduced recently as of October 2552. Spartan-III trainee Dante-G188 mistook a powerful, distant explosion on Onyx for the testing of a four-forty, which he claimed is a "big one"; however, whether he was referring to size, explosive yield, or both is unclear.[1]

Type[edit]

Warning: The following information is conjecture and does not necessarily represent official information.

Though Halo: Ghosts of Onyx references the weapon as a type of artillery, its name is never explained. It is possible that the name is shorthand for a 4.40" (~112mm) bore, which would be appropriate for a fairly small artillery piece; however, this would conflict with Dante's description of the weapon as a "big one" unless the explosive yield is greater than the round's size would suggest. Alternately, "four-forty" may simply be a model designation such as "M440". A less likely possibility is that the four-forty is a large-scale mortar weapon, similar to Nazi Germany's 380mm Sturmtiger and 600mm Karl-Gerät.

Conjecture ends here.

List of appearances[edit]

Sources[edit]

  1. ^ Halo: Ghosts of Onyx, page 116

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