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| {{Era|GOO}} | | {{Status|Canon}} |
| {{Ratings}}
| | {{Weapon infobox |
| {{Weapon | | |name="Four-forty" |
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| | |service=[[Human-Covenant War]] |
| | name=440 mm Heavy Artillery | |
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| | type=Artillery
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| | ammotype= 440mm shells (assumed)
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| | era= [[Human-Covenant War]]
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| | affiliation= [[UNSC]]
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| A '''440mm''' (or '''"Four-Forty"''' as referred to by UNSC troops)<ref>''[[Halo: Ghosts of Onyx]]'', page 116</ref> is a [[UNSC]] [[weapon]] developed around [[2552]]. As an anti air artillery piece, it is most likely used to destroy [[Covenant]] bases, or possibly to target [[vehicles]]. During a training mission on [[Onyx]], one of the [[SPARTAN-III]] candidates mistook an explosion caused by an [[Onyx Sentinel]] for a 440mm piece. It may be an explosive shell, or, more likely, an artillery rocket. It was recently introduced prior to the [[Battle of Onyx]].
| | 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> |
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| ==Size Issue== | | ==Type== |
| {{Conjecturalization}} | | {{Conjecture}} |
| 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 [[mass driver]] technology, like that of Harvest, then the size makes much more sense - the kinetic energy imparted by a railgun or coilgun 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>
| | 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 cannon or mortar, similar to Nazi Germany's 380mm [[Wikipedia:Sturmtiger|Sturmtiger]] and 600mm [[Wikipedia:Karl-Gerät|Karl-Gerät]]. If so, the nickname might denote a calibre of 440mm, comparable to a large naval cannon. |
| | {{Conjecture end}} |
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| | | ==List of appearances== |
| The true caliber, out of the suggestions appearing above, is obvious to anyone with any real-world military history knowledge and experience, and a basic grounding in physics; the "440" no doubt refers to millimeters. While reading the previous conjecture, keep in mind that the .440mm projectile suggested, being a SUB-MILLIMETER projectile moving at a significant portion of the speed of light (compared to contemporary weapons), would be traveling LINEARLY if fired from a mass accelerator, not BALLISTICALLY. Field pieces - ALL field pieces - are, doctrinally and functionally, INDIRECT-fire weapons. As canon examples for your comparison, the MA5 series of rifles, the Gauss cannon, and most other projectile weapons in the series are DIRECT-fire weapons. Historically, weapons as large as a 440mm piece (17.5 inches, a little larger than the biggest guns conventionally fitted to battleships) were used as preparatory fire prior to ground invasions, in the destruction of hardened military installations, and in conjunction with and supplementary to air support and missile attacks. Weapons over twice this size were created during World War II as siege and assault weapons, and were capable of delivering multi-ton high-ex projectiles over distances of greater than 20 miles. These weapons also lack the weakness inherent to electronically targeted and guided systems; due to their mechanical nature, they are rather obviously unaffected by any form of electronic countermeasures and are exceedingly difficult to neutralize even with "point-defense" CIWS systems, due to the ballistic trajectory and the speed of the terminal approach. These concepts jibe well with the expeditionary nature of the UNSC Marine Corps, and with the engagement methods presented to us in series canon. With weapons such as these deployed planetside, it would be possible for a comparatively small, self-contained unit to provide for itself offensive and defensive fire to a substantial portion of ground forces over a wide area, much like their historical real-world usage. As an addendum, the author's suggestion to use a field piece as small as 440mm against an ORBITAL installation is absurd. A 440mm Linear Cannon (read: a futuristic MAC Gun that would have the necessary escape velocity to reach an orbital installation and then cause kinetic damage) would make sense in context, but once again, we're talking about future evolutions of modern-day indirect-fire artillery pieces, NOT linear cannons. Also, bear in mind that weapons of this general size were typically found mounted as railway cannons or on battleships, and would be ill-suited for use as anti-aircraft pieces bearing in mind the speed of of the target (however large) and the difficulty of laying the gun on target and bracing it to fire would be so considerable as to not be worth the effort (as an example, compare an attacker circling a strafing Ghost around a defender's slow-traversing Scorpion tank turret that happens to knock itself off target every time it fires. A Gauss turret, while smaller and less powerful, is easier to use and would make more sense in such a situation).{{Conjecturalization End}}
| | *''[[Halo: Ghosts of Onyx]]'' {{Fm}} |
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| ==Sources== | | ==Sources== |
| <references/>
| | {{Ref/Sources}} |
| {{Template:UNSC Heavy Weapons}} | |
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| [[Category:Weapons|{{PAGENAME}}]] | | {{UNSC heavy weapons}} |
| | [[Category:Artillery]] |
| | [[Category:Projectile weapons]] |
| | [[Category:UNSC ground weapons]] |
