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[[File:Semi-Powered Infiltration.png|200px|thumb|right|A concept illustration of SPI armor from the ''[[Art of Halo 3]]''.<ref>'''[[The Art of Halo 3]]''', ''page 140''</ref>]] | |||
The '''Semi-Powered Infiltration armor''' ('''SPI armor''') is a [[UNSC]] combat [[armor]] system designed with an emphasis on stealth through the use of [[photoreactive panel|special photoreactive panels]].<ref name="goo14">'''[[Halo: Ghosts of Onyx]]''', ''page 14''</ref> Although early versions of the SPI system were tested by [[Orbital Drop Shock Troopers]],<ref name="g164">'''Halo: Ghosts of Onyx''', ''page 164''</ref> the armor was most prominently issued to the [[SPARTAN-III program|SPARTAN-III]] supersoldiers.<ref name="goo14"/> By [[2558]], the SPI armor had been mostly phased out of use by Spartan-IIIs, but some of the photoreactive plating technology has seen limited but successful use in several special operations ODST units.<ref>[https://www.halowaypoint.com/en-us/community/blog-posts/canon-fodder-fifty-caliber '''Halo Waypoint''' - ''Cannon Fodder: Fifty Caliber'']</ref> | |||
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The '''Semi-Powered Infiltration armor''' ('''SPI armor''') is a [[ | |||
== Overview == | == Overview == | ||
Described as "part legionnaire mail, part tactical body armor, and part chameleon", the SPI armor features [[photoreactive panel]]s that mimic the surrounding textures, effectively being the UNSC equivalent to the [[Covenant]]'s [[active camouflage]] systems.<ref>'''Halo: Ghosts of Onyx''', ''page 16''</ref> The SPI armor features a full body armor with an enclosed helmet and [[heads-up display]]. The undersuit is equipped with a cushioning layer of liquid | Described as "part legionnaire mail, part tactical body armor, and part chameleon", the SPI armor features [[photoreactive panel]]s that mimic the surrounding textures, effectively being the UNSC equivalent to the [[Covenant]]'s [[active camouflage]] systems.<ref>'''Halo: Ghosts of Onyx''', ''page 16''</ref> The SPI armor features a full body armor with an enclosed helmet and [[heads-up display]]. The undersuit is equipped with a cushioning layer of liquid nanocrystals that provide more ballistic protection than three centimeters of [[wikipedia:Kevlar|Kevlar]] diamond weave, without the bulk.<ref name="goo171">'''Halo: Ghosts of Onyx''', ''page 171''</ref> The hardened armor plates, though advanced compared to standard UNSC infantry armor, can only take a few glancing blows before failing.<ref name="goo14"/> | ||
Though more advanced than the [[Orbital Drop Shock | Though more advanced than the [[Orbital Drop Shock Trooper]]s' [[ODST armor|body armor]], the SPI armor is less advanced and powerful than the [[MJOLNIR armor]] used by the [[SPARTAN-II program|SPARTAN-IIs]].<ref>'''[[Halo: Glasslands]]''', ''page 207''</ref> Its main benefit is that it is drastically cheaper to produce than MJOLNIR.<ref name="goo46">'''Halo: Ghosts of Onyx''', ''page 46''</ref> It is also not as bulky or as heavy as the MJOLNIR armor, making it easier to handle and transport.<ref>'''Halo: Glasslands''', ''page 40''</ref> The SPI suit does not significantly enhance the user's physical performance (i.e. strength, speed, agility), unlike MJOLNIR;<ref>'''Halo: Last Light''', ''page 33'' (Google Play edition)</ref> as a result, it can be worn by any individual and does not require special neurological, skeletal or muscular augmentation.<ref>'''Halo: Ghosts of Onyx''', ''pages 89, 94''</ref><ref name="g164"/> It is also made of a less durable, less dense alloy than MJOLNIR armor: [[Kelly-087]] dented a SPARTAN-III's chest plate with her fist when first encountering the SPARTAN-IIIs.<ref name="goo168">'''Halo: Ghosts of Onyx''', ''pages 168-169''</ref> It also lacks an [[energy shielding]] system, making the user far more vulnerable to enemy fire and was a major contributor to the high fatality rate of the SPARTAN-IIIs. The exception to this limitation could be found in the SPARTAN-III [[Headhunters]]: their experimental armor was known to be equipped with energy shields, due to their elite nature and value. However, power must be drawn from the energy shields to recharge the suit's active camouflage module.<ref name="head212">'''[[Halo: Evolutions - Essential Tales of the Halo Universe]]''', "[[Headhunters]]", ''page 212''</ref> | ||
== Versions == | == Versions == | ||
=== Mark I === | === Mark I === | ||
The Mark I was | The Mark I was the first, experimental iteration of the SPI system used by the SPARTAN-IIIs of [[SPARTAN-III Alpha Company|Alpha Company]]. The featured photo-reactive panels gave the Spartans of Alpha Company a rough equivalent to active camouflage. The camouflage patterns, however, shifted irregularly and imperfectly, which made the photo-reactive panels inferior compared to the [[Covenant]]'s active camouflage technologies.<ref>'''Halo: Ghosts of Onyx''', ''page 85''</ref> | ||
=== Mark II === | === Mark II === | ||
The Mark II was an improvement of the SPI Mark I, first used by the drill instructors of [[SPARTAN-III Beta Company|Beta Company]], and then by the Spartans of Beta and Gamma Companies.<ref name="goo89">'''Halo: Ghosts of Onyx''', ''page 89''</ref> The armor sports new photoreactive coating to boost its camouflaging | The Mark II was an improvement of the SPI Mark I, first used by the drill instructors of [[SPARTAN-III Beta Company|Beta Company]], and then by the Spartans of Beta and Gamma Companies.<ref name="goo89">'''Halo: Ghosts of Onyx''', ''page 89''</ref> The armor sports new photoreactive coating to boost its camouflaging properties. Although the new photoreactive coating can mimic a wide range of electromagnetic radiation, it is still sensitive to overload, making the wearer vulnerable for several seconds after a [[flashbang]] or [[plasma]] hit while the panels reset.<ref name="goo113">'''Halo: Ghosts of Onyx''', ''page 113''</ref> | ||
The armor was proposed by [[Kurt Ambrose]] in [[2537]] for Alpha Company, but the request was denied because the armor was over budget.<ref>'''Halo: Ghosts of Onyx''', ''page 80''</ref> After Alpha Company's Pyrrhic victory in [[Operation: PROMETHEUS]], the Mark II was approved for mass production. After the augmentation of [[SPARTAN-III Gamma Company|Gamma Company]], small adjustments were installed into the Mark II SPI armor, | The armor was proposed by [[Kurt Ambrose]] in [[2537]] for Alpha Company, but the request was denied because the armor was over budget.<ref>'''Halo: Ghosts of Onyx''', ''page 80''</ref> After Alpha Company's Pyrrhic victory in [[Operation: PROMETHEUS]], the Mark II was approved for mass production. After the augmentation of [[SPARTAN-III Gamma Company|Gamma Company]], small adjustments were installed into the Mark II SPI armor,<ref name="goo99"/> including experimental refits to the ballistic gel layers, upgraded software suites, and other functions, slated to be introduced to the systems prior to Gamma Company's deployment in [[2552]].<ref name="goo99">'''Halo: Ghosts of Onyx''', ''page 99''</ref> One minor improvement is that the armor is now hermetically sealed and contains an internal [[oxygen]] supply.<ref name="g251">'''Halo: Ghosts of Onyx''', ''page 251''</ref> | ||
== | ==Armor components== | ||
; | ;Helmet: The SPI helmet features a large, bulbous faceplate somewhat similar to that of the [[MJOLNIR Powered Assault Armor/V variant|MJOLNIR EVA variant]]. The visor is normally gold-mirrored in color<ref name="goo115">'''Halo: Ghosts of Onyx''', ''page 115''</ref> and can be depolarized.<ref name="goo168"/> The helmet supports a [[heads-up display]] with features similar to that of the MJOLNIR system, including TACMAP, TEAMBIO and [[COM|TEAMCOM]] interfaces as well as team status lights.<ref>'''Halo: Ghosts of Onyx''', ''pages 17, 22''</ref><ref name="g114">'''Halo: Ghosts of Onyx''', ''page 114''</ref> The visor suite features an automatic magnification and image enhancement system controlled by the wearer's eye movements. For example, if the wearer squints while looking at a particular spot the system will automatically zoom in.<ref>'''Halo: Ghosts of Onyx''', ''page 19''</ref> Both the image enhancement and the visor's internal polarization can also be controlled manually.<ref>'''Halo: Ghosts of Onyx''', ''page 268''</ref><ref>'''Halo: Ghosts of Onyx''', ''page 345''</ref> The helmet possesses tactical lights<ref>'''Halo: Ghosts of Onyx''', ''page 273''</ref> and a defogging vent to remove internal moisture.<ref>'''Halo: Ghosts of Onyx''', ''page 316''</ref> | ||
; | ;Bodysuit: The bodysuit of the SPI system contains a layer of ballistic liquid nanocrystal that is significantly more effective than traditional body armor materials such as Kevlar whilst being less bulky.<ref name="goo171"/><ref name="g114"/><ref>'''Halo: Ghosts of Onyx''', ''page 360''</ref> The suit comprises more than one component, including leggings.<ref name="g141">'''Halo: Ghosts of Onyx''', ''page 141''</ref> | ||
;Photoreactive panels: | ;Photoreactive panels: While matte gray when inert,<ref name="g141"/> the photoreactive panels covering the SPI suit act as [[active camouflage]] when active,<ref>'''Halo: Ghosts of Onyx''', ''page 165''</ref> effectively blending the wearer with their environment.<ref name="goo14"/> The coating also renders the wearer nearly invisible to infrared and passive light-gathering systems.<ref>'''Halo: Last Light''', ''page 95'' (Google Play edition)</ref> Since the photoreactive plates take time to recover after explosions such as a [[flashbang grenade]] and [[Plasma weaponry|plasma]] hits, the SPARTAN-III is visible until the plates recover.<ref name="goo113"/> With the exception of the [[Headhunters]]' suits, the SPI armor does not feature energy field-based active camouflage systems like those of the Covenant.<ref name="head212"/> | ||
;Environmental controls: The suit possesses rudimentary environmental regulation system to maintain a comfortable temperature for the wearer.<ref>'''Halo: Ghosts of Onyx''', ''page 22''</ref> However, the system is not designed for extended use and it will become increasingly uncomfortable to wear if used continuously over long periods of time.<ref>'''Halo: Ghosts of Onyx''', ''page 254''</ref> As of 2552, the Mark II SPI armor is also fully sealed and contains an internal oxygen supply.<ref name="g251"/> The armor also has an efficient cooling system and is significantly difficult to detect even with thermal scanners.<ref name="goo89"/> | |||
;Environmental controls: The suit possesses rudimentary environmental regulation system to maintain a comfortable temperature for the wearer.<ref>'''Halo: Ghosts of Onyx''', ''page 22''</ref> However, the system is not designed for extended use and it will become increasingly uncomfortable to wear if used continuously over long periods of time.<ref>'''Halo: Ghosts of Onyx''', ''page 254''</ref> As of 2552, the Mark II SPI armor is also fully sealed and contains an internal oxygen supply. | |||
;Biofoam injection ports: Like MJOLNIR, the SPI armor has dedicated ports allowing the quick injection of [[biofoam]] or other battlefield pharmaceuticals.<ref>'''Halo: Ghosts of Onyx''', ''page 362''</ref> | ;Biofoam injection ports: Like MJOLNIR, the SPI armor has dedicated ports allowing the quick injection of [[biofoam]] or other battlefield pharmaceuticals.<ref>'''Halo: Ghosts of Onyx''', ''page 362''</ref> | ||
;Data socket: The SPI armor's gauntlet features a data port to which small electronic devices such as [[data pad]]s can be connected.<ref>'''Halo: Ghosts of Onyx''', ''page 310''</ref><ref>'''Halo: Ghosts of Onyx''', ''page 356''</ref> | ;Data socket: The SPI armor's gauntlet features a data port to which small electronic devices such as [[data pad]]s can be connected.<ref>'''Halo: Ghosts of Onyx''', ''page 310''</ref><ref>'''Halo: Ghosts of Onyx''', ''page 356''</ref> | ||
==Production note== | ==Production note== | ||
{{Linkbox|gallery=yes|gallerypage=Images of SPI Armor}} | {{Linkbox|gallery=yes|gallerypage=Images of SPI Armor}} | ||
The SPI armor is referred to as "PR" twice in ''Halo: Ghosts of Onyx''.<ref>'''Halo: Ghosts of Onyx''', ''page 87'' (''"...the flaws in their Mark-I PR suits..."'')</ref><ref>'''Halo: Ghosts of Onyx''', ''page 141'' (''"...and pulled on the PR leggings."'')</ref> | The SPI armor is referred to as "PR" twice in ''Halo: Ghosts of Onyx''.<ref>'''Halo: Ghosts of Onyx''', ''page 87'' (''"...the flaws in their Mark-I PR suits..."'')</ref><ref>'''Halo: Ghosts of Onyx''', ''page 141'' (''"...and pulled on the PR leggings."'')</ref> Since no context is provided for this alternate designation, it is possible that the suit was known as "PR" (likely an acronym for "PhotoReactive") in an earlier revision of the novel's manuscript and that the presence of the two mentions in the final book is an editing oversight. | ||
== Gallery == | == Gallery == | ||
<gallery> | <gallery> | ||
File: | File:SpartanIII.jpg|A Spartan wearing SPI armor. | ||
File:Headhunters.png|Two Headhunters, [[Roland (Spartan-III)|Roland]] and [[Jonah]], wearing SPI armor. The former is wearing an unknown variant. | |||
File:Headhunters.png|Two Headhunters, [[Roland- | |||
File:Spivariant.jpg|Another view of Roland's and Jonah's SPI armor. | File:Spivariant.jpg|Another view of Roland's and Jonah's SPI armor. | ||
File:HEvol - SPI HUD.png|An energy shielded SPI suit's [[Heads-up display|HUD]]. Note the HUD's resemblance to that of the [[MJOLNIR Powered Assault Armor/Mark V|MJOLNIR Mark V]]. | File:HEvol - SPI HUD.png|An energy shielded SPI suit's [[Heads-up display|HUD]]. Note the HUD's resemblance to that of the [[MJOLNIR Powered Assault Armor/Mark V|MJOLNIR Mark V]]. | ||
File:Headhunter SPI Armor.jpg|[[Jonah | File:Headhunter SPI Armor.jpg|[[Jonah]] wearing his SPI armor. | ||
File:Evo Headhunters Post.jpg|Officially endorsed fan art of Jonah and Roland wearing modified SPI armor. | File:Evo Headhunters Post.jpg|Officially endorsed fan art of Jonah and Roland wearing modified SPI armor. | ||
File:HLL cover-Olivia full.png|[[Olivia-G291]] in SPI armor with her helmet removed | File:HLL cover-Olivia full.png|[[Olivia-G291]] in SPI armor with her helmet removed. | ||
</gallery> | </gallery> | ||
== List of appearances == | == List of appearances == | ||
*''[[Halo: Ghosts of Onyx]]'' {{1st}} | *''[[Halo: Ghosts of Onyx]]'' {{1st}} | ||
*''[[ | *''[[Halo: Evolutions - Essential Tales of the Halo Universe]]'' | ||
**''[[Headhunters (short story)|Headhunters]]'' | **''[[Headhunters (short story)|Headhunters]]'' | ||
*''[[Halo: Reach]]'' {{Mo}} | *''[[Halo: Reach]]'' {{Mo}} | ||
*''[[Halo: Glasslands]]'' | *''[[Halo: Glasslands]]'' | ||
*''[[Halo: Last Light]]'' | *''[[Halo: Last Light]]'' | ||
*''[[Halo | *''[[Halo Online]]'' {{Mo}} | ||
== Sources == | == Sources == | ||
{{ | {{Reflist|2}} | ||
{{Armor | {{Armor}} | ||
{{SPARTAN Armor}} | |||
[[Category:Armor]] | [[Category:Armor]] |