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{{Status|Canon}}
{{Era|HCW}}
'''Energy projectors''' are a broad classification of naval weaponry used by the [[Covenant]] aboard their [[Covenant starship|spacecraft]]. They operate as high-tier [[plasma weaponry]] firing streams of high-intensity [[plasma]] at a target typically guided by a combination of magnetic fields and [[gravitic]] energy.{{Ref/Book|Id=Enc22|Enc22|Page=261}}
[[File:Halo3_E3_TRAILER_2007_720p30_ST_6300Kbps_002_0001.jpg|thumb|300px|A [[CCS-class battlecruiser|''CCS''-class battlecruiser]] firing an energy projector.]]
{{Article Quote|The titanic vessel [[Jacob Keyes|Keyes]] had seen before was back. It fired its brilliant blue-white beam - a lance across space - that struck the destroyer ''[[UNSC Herodotus|Herodotus]]'', one hundred thousand kilometers distant. The beam cut clean through the ship, stem to stern, dissecting her.<ref name="for">'''[[Halo: The Fall of Reach]]''', ''page 320''</ref>}}


==Overview==
The '''energy projector''', also known as the '''cleansing beam''',<ref>'''Halo Wars'''</ref><ref name="EVG">'''[[Halo: The Essential Visual Guide]]''', ''page ???''</ref> is a [[Covenant Empire|Covenant]] weapon used exclusively by large warships. It fires a thin beam of energized matter, capable of destroying ships effortlessly at long range and "[[Glassing|glassing]]" planets, systematically rendering them sterile and incapable of sustaining life.
===Design details===
[[File:Halo3 E3 TRAILER 2007 720p30 ST 6300Kbps 002 0001.jpg|thumb|300px|A {{Pattern|Ket|battlecruiser}} using its energy projector to help contain the [[Flood]] outbreak in [[Voi]].]]
Energy projectors employ the use of [[gravitics|gravitic impellors]] and magnetic lensing to accelerate, focus and direct beams of high-intensity plasma generated by the ship's [[pinch fusion reactor]]. The most powerful energy projectors form tight beam lances for excavation and cutting, while lesser mechanisms emit streams of plasma which are bent towards targets using magnetic fields.{{Ref/Book|HWF|Page=90}} When preparing to fire, energy projectors employ targeting vanes that iris into position around a magnetized muzzle, ready to direct the plasma they fire.{{Ref/Novel|HSoI}} This charging period is signified with a buildup of plasma around the targeting mechanism and a bright glow, before the firing sequence commences.


Some classes of Covenant [[space station]]s also carry energy projectors as their main defensive capability; one of the few known instances of this was when the {{UNSCShip|Infinity}} encountered a [[Oth Lodon station|Covenant battlestation]] orbiting the gas giant [[Oth Lodon]] in [[2558]]. In this engagement the station, commandeered by [[Insurrectionist]]s of the [[New Colonial Alliance]] fired the station's main energy projector upon the UNSC flagship, severely damaging it with a single shot. This particular projector was mounted upon the station's central "tower", allowing for maximum range and effect against approaching targets.{{Ref/Comic|Id=HE5|HEsc|Issue=5}}
==History==
The energy projector was first encountered during the [[Second Battle of Harvest]], where it was used by a [[Covenant super-destroyer]]. It was more frequently seen in later years, such as during the [[Harvest]] [[Harvest Campaign|campaign]] and [[Operation: TORPEDO]]. Throughout the course of the [[Fall of Reach|Covenant invasion of Reach]], the population centres suffered tremendous structural damage due to the Covenant's glassing of the planet.<ref>'''[[Halo: Reach]]''', campaign level ''[[New Alexandria]]''</ref> Similarly, several frigates fell prey to the energy projectors during the engagement.<ref>'''Halo: Reach''', campaign level ''[[Tip of the Spear]]''</ref>


==Types of energy projector==
In a bid to kill [[John-117]], the ''[[Solemn Penance]]'' used an energy projector to destroy the [[Prophet of Regret]]'s temple after his assassination by the SPARTAN on [[Installation 05]].<ref>'''Halo 2''', campaign level ''[[Regret (level)|Regret]]''</ref> In the [[Battle of Earth]], the city of [[Voi]] was glassed by the [[Fleet of Retribution]] to stop a [[The Flood|Flood]] infestation.<ref>'''Halo 3''', campaign level ''[[Floodgate]]''</ref> According to Lord Hood, half of the African continent was glassed shortly after, though it was almost certainly a figurative exaggeration given the impossibility of a handful of ships glassing such a huge area in so short a time.
There are multiple kinds of energy projector used by the Covenant. In the same way that [[coilgun]] technology is used by [[human]]ity in a wide variety of applications ranging from small [[point-defense gun]]s to gargantuan [[Magnetic Accelerator Cannon]]s, so do energy projectors for the Covenant.


===Excavation beams===
===Operation===
{{Main|Excavation beam}}
The weapon fires a thin beam of highly energetic particles, or plasma. It typically requires a brief charging period, during which a visible maelstrom of plasma appears around the emitter. The beam has an effective range of over 100,000 kilometers. The beam varies in color, possibly according to power output, but it generally appears as a silver-white color, similar to the scintillation effect that is seen when a Covenant ship's energy shields are hit. Beams in the red, purple, orange and blue spectra have also been observed.
Excavations beams serve aboard the largest Covenant ships as tools for mining and [[orbital bombardment]], and are as such typically placed on the ship's ventral surface - giving rise to the colloquialism "ventral beams". They are used on only the largest [[capital ship]]s, and can have their output dialled as such to excavate [[Forerunner]] artefacts with fine-tuned precision or obliterate ground installations with plasma until the surface is but glass.{{Ref/Reuse|Enc22}}


Excavation beams are generally only equipped on the largest Covenant [[capital ship]]s; [[Covenant carrier|carriers]], [[Covenant cruiser|cruisers]] and [[Covenant destroyer|destroyers]] all see them as a standard fitting - with generally only one excavation beam per-ship (the {{Pattern|Sh'wada|supercarrier}} serves as a notable exception to this rule, hosting multiple arrays of excavation beam).
The energy projector's long range allows a ship armed with such weapons to 'snipe' targets during ship-to-ship combat. The weapon has been observed to gut UNSC ships from stem to stern, as happened to the [[uNSC frigate|frigate]] {{UNSCship|Gettysburg}} over Reach.<ref name="for"/><ref>'''[[Halo: First Strike]]'''</ref>
<gallery>
 
File:Mombasa_Glassing.jpg|A {{Pattern|Kerel|assault carrier}} glassing [[New Mombasa]] with its ''Infernus''-pattern superheavy excavation beam.
===Effects===
</gallery>
Against UNSC vessels, the weapon is able to pierce dozens of centimeters of [[Titanium-A armor|Titanium-A]] armor with comparative ease, rendering any form of physical defense useless. A single hit can potentially disable or destroy vital systems, such as the [[Magnetic Accelerator Cannon]] or engines, as seen during the [[Battle of Earth]] when a single pulse from an [[covenant assault carrier|assault carrier's]] dorsal energy projector crippled a [[marathon-class cruiser|''Marathon''-class cruiser]]. If an energy projector strikes in a critical area, such as the reactors of a ship, it could destroy the ship instantly.
 
The beam is functionally similar to the infantry-issued [[Type-50 Sniper Rifle System|particle beam rifle]], albeit on a vastly larger scale. It is also speculated that the beam can be focused to varying degrees. In space, the beam can be focused to a smaller, more concentrated, and thus more powerful beam generally used to decimate enemy fleets from afar. It also seems to drain all or most of the energy in a Covenant ship for a brief period, unless the ship is big enough to supply the power without too much of a drain.
 
When used for "glassing" a planet, the energy projector causes near-total atmospheric and biospheric destruction. The beam vitrifies the soil, converting massive swaths of terrain into molten glass, and causes massive atmospheric disruption. The climate of the planet is drastically altered, sometimes permanently; Harvest's global temperature dropped after being glassed, sending the planet into an "ice age."


===Plasma lances===
An energy projector beam also generates massive electromagnetic disturbances; energy shield systems are known to fail when within several miles of an active beam.
{{Main|Plasma lance}}
Unlike excavation beams, plasma lances serve as a primary anti-[[warship]] weapon aboard the largest Covenant ships, serving in a role similar to the [[Magnetic Accelerator Cannon]]s of [[humanity]]. Plasma lances fire tightly-focused streams of high-velocity plasma that deal damage via both thermal and kinetic means, able to bisect unshielded warships entirely.{{Ref/Reuse|Enc22}}


Plasma lances are distributed more throughout the Covenant naval forces than excavation beams; while still predominantly used on larger warships, they also see some use on the smaller vessels of the Covenant too. Notable examples include the {{Pattern|Rothen|fireship}} and {{Pattern|Mutan Et|storm cutter}}.
===Distribution===
<gallery>
According to [[Frederic-104]], "Only the big ships have them." [[reverence-class cruiser|''Reverence''-class cruisers]], [[Covenant supercruiser|supercruisers]], [[Covenant assault carrier|assault carriers]], [[Covenant supercarrier|supercarriers]], [[CPV-class heavy destroyer]] and [[CCS-class battlecruiser|''CCS''-class battlecruisers]] are known to be equipped with energy projectors. Carriers are armed with one energy projector underneath the bow, one on their dorsal sides, and one near the [[gravity lift]]. ''CCS''-class battlecruisers feature one under the bow and one on the underside of the gravity lift platform.
File:Invasion - Sniper vs Autumn.png|A {{Pattern|Kewu|battleship}} firing its ''Muesh''-pattern flensing lance during the [[Fall of Reach]].
File:H2A_Cutscene_EnergyProjectorPiercing.png|A {{Pattern|Syfon|assault carrier}} firing its dorsal ''Urpeon''-pattern superheavy plasma lance during the [[Battle for Earth]].
</gallery>


===Plasma beams===
{{Conjecture}}
{{Main|Plasma beam emitter}}
Although it is never seen, it is more than likely that most if not all of Covenant warships have energy projectors. As seen on Covenant cruisers and carriers, the gravity platform doubles as a firing port for their energy projectors. By that logic, potentially any ship with an gravity lift could be armed with one.  
Plasma beams function as a scaled down-form of plasma lance for use as a more general-purpose anti-ship weapon comparable in form to human [[Naval autocannon|naval coilgun]] turrets. They are found on most Covenant warships in higher numbers than plasma beams, and serve as a major weapon system for use in combat.{{Ref/Reuse|Enc22}}
<gallery>
File:HCD_-_AlphaCorviSpaceBattle.jpg|A {{Pattern|Sinaris|heavy destroyer}} firing its ''Aljordan''-pattern plasma beam in the [[Battle of Alpha Corvi II]].
</gallery>


===Focus cannons===
It is also unknown whether the power of an energy projector is determined by the size of the ship's reactor, the size of the actual projector, or a combination of both.
{{Main|Focus cannon}}
{{Conjecture end}}
Focus cannons are small-scale energy projectors used by the Covenant for [[Planetary warfare|ground warfare]] and excavation. Unlike their aforementioned counterparts, focus cannons are generally not mounted on starships, but instead on the ground vehicles of the Covenant. They are most prominently used on [[excavator]]s such as [[Locust]]s and [[Scarab]]s, though select heavy ground vehicles like the {{Pattern|Zashk|Draugr}} may also use them too.{{Ref/Site|Id=WPScarab|URL=https://www.halowaypoint.com/en-us/universe/vehicles/scarab|Site=Halo Waypoint|Page=Scarab|D=13|M=04|Y=2016}}
<gallery>
File:1216050538 Scarab.jpg|A {{Pattern|Deutoros|Scarab}} firing its focus cannon in the [[Battle of Voi]].
</gallery>


==''Halo Wars''==
==''Halo Wars''==
In ''[[Halo Wars]]'', the [[Prophet of Regret]] uses the '''Cleansing Beam''' as his leader power. An orbiting vessel "[[Glassing|glasses]]" the target, and has the power to destroy almost anything. The weapon's capabilities can be upgraded to progressively increase power and decrease supply usage at the [[Covenant temple|temple]]. The upgrades are named ''Regret's Sentence'', ''Regret's Doom'', and ''Regret's Condemnation'', respectively.
In ''[[Halo Wars]]'', the [[Prophet of Regret]] uses the '''Cleansing Beam''' as his leader power. An orbiting vessel "[[Glassing|glasses]]" the target, and has the power to destroy almost anything. The weapon's capabilities can be upgraded to progressively increase power and decrease supply usage at the [[covenant temple|temple]]. The upgrades are named ''Regret's Sentence'', ''Regret's Doom'', and ''Regret's Condemnation'', respectively.


To use it, the player must select the Prophet of Regret and press the '''Y''' button. The player can then use the left thumbstick to move the beam around the Prophet's field of view. The Cleansing Beam can damage all units, including the player's and allies' forces; however, Regret himself cannot be damaged by the beam. The beam's color is dependent upon the player's team color.
To use it, the player must select the Prophet of Regret and press the '''Y''' button. The player can then use the left thumbstick to move the beam around the Prophet's field of view. The Cleansing Beam can damage all units, including the player's and allies' forces; however, Regret himself cannot be damaged by the beam. The beam's color is dependent upon the player's team color.
==Trivia==
* The color of the energy projector's beam is not the same in every game. In ''[[Halo 2]]'', it is purple. In ''[[Halo 3]]'' and ''[[Halo 3: ODST]]'', it is blue. In ''[[Halo: Reach]]'', it is colored red. In ''[[Halo Wars]]'', it changes depending on what the team color is. This may be indicative of different power settings, as the energy projectors of [[CCS-class battlecruiser]]s have been seen in all three colors.
* The time an energy projector takes to charge is also often quite different. The CCS-class battlecruiser fought at the end of ''Halo: Reach'' takes 20 seconds to charge its energy projector, while ships of the same class in [[New Alexandria]] are shown charging theirs in only two, then sustaining fire for [[seven]] seconds. Likewise, a CAS-class assault carrier in ''ODST'' is shown charging its projector in thirty-six seconds, but an earlier one charges its own indefinitely until the player passes through a gate. This could be explained by a difference in operation, such as the cruisers at New Alexandria needing to expend less energy to destroy some buildings at New Alexandria while needing more to cut through the heavily armored ''[[UNSC Pillar of Autumn|Pillar of Autumn]]''.


==Gallery==
==Gallery==
<gallery>
<gallery widths="150">
File:Firing Energy Projector.png|A Covenant assault carrier firing its energy projector in ''Halo 2''.
File:Firing Energy Projector.png|A Covenant assault carrier firing its energy projector in ''Halo 2''.
File:Glassing Upclose.jpg|A close-up to the energy projector used by a ''Ket''-pattern battlecruiser.
File:Glassing Upclose.jpg|A close-up to the energy projector used by a CCS-class battlecruiser.
File:AC Cargobay.jpg|Large Covenant ships, such as the ''[[Shadow of Intent]]'', have energy projectors located on their undersides.
File:AC Cargobay.jpg|Large Covenant ships, such as the ''[[Shadow of Intent]]'', have energy projectors located on their undersides.
File:Mombasa Glassing.jpg|A Covenant assault carrier glassing [[New Mombasa]] with an energy projector.
File:Mombasa Glassing.jpg|A Covenant Assault carrier glassing [[New Mombasa]] with an energy projector.
File:HW Screenshots E3 3.jpg|The Cleansing Beam in ''[[Halo Wars]]''.
File:Glassinglaz0r.jpg|The Cleansing Beam in ''[[Halo Wars]]''.
File:HaloReach - Glassing.jpg|A ''Ket''-pattern battlecruiser glassing [[New Alexandria (location)|New Alexandria]].
File:HaloReach - Glassing.jpg|A CCS-class Battlecruiser glassing [[New Alexandria]].
File:Energy_Projector.jpg|The {{Pattern|Sh'wada|supercarrier}} ''[[Long Night of Solace]]'' using its energy projector on the {{UNSCShip|Grafton}} during the [[Battle at Szurdok Ridge|Battle of Viery]].
File:Energy_Projector.jpg|The [[Covenant supercarrier]] ''[[Long Night of Solace]]'' using its energy projector on the {{UNSCShip|Grafton}} during the [[Battle at Szurdok Ridge|Battle of Viery]].
File:Infinity attacked.... by a third time.jpg|The [[Oth Lodon station|Covenant battlestation]] at [[Oth Lodon]] fires its main energy projector at the {{UNSCShip|Infinity}}.
File:H2A - Chief outrunning plasma.jpg|John-117 avoiding ''[[Solemn Penance]]''<nowiki>'</nowiki>s energy projector.
File:FoR TAS - Unrelenting energy projector.png|The ''[[Unrelenting]]'' firing its energy projector.
</gallery>
</gallery>


==List of appearances==
==List of appearances==
{{Col-begin}}
{{Col-2}}
*''[[Halo: The Fall of Reach]]'' {{1st}}
*''[[Halo: Combat Evolved]]''
*''[[Halo: The Flood]]''
*''[[Halo 2]]''
*''[[Halo 2]]''
*''[[Halo: Uprising]]''
*''[[Halo 3]]''
*''[[Halo 3]]''
*''[[Halo Wars: Genesis]]''
*''[[Halo Wars]]''
*''[[Halo Wars]]''
*''[[Halo 3: ODST Pre-mission Evaluation]]''
*''[[Halo 3: ODST]]''
*''[[Halo 3: ODST]]''
*''[[Halo Legends]]''
*''[[Halo: Reach]]''
**''[[The Duel]]''
*''[[Halo: The Fall of Reach]]'' {{1st}}
**''[[Origins]]''
*''[[Halo: First Strike]]''
**''[[The Package (animated short)|The Package]]''
*''[[Halo: Ghosts of Onyx]]''
*''[[Halo: Evolutions - Essential Tales of the Halo Universe]]''
*''[[Halo: Evolutions - Essential Tales of the Halo Universe]]''
**''[[Midnight in the Heart of Midlothian]]''
**''[[The Impossible Life and the Possible Death of Preston J. Cole]]''
**''[[The Impossible Life and the Possible Death of Preston J. Cole]]''
**''[[The Return]]''
**''[[The Return]]''
*''[[Remember Reach]]''
*''[[Halo Wars: Genesis]]''
**''[[Deliver Hope]]''
*''[[Halo Legends]]''
{{Col-2}}
**''[[Origins]]''
*''[[Halo: Reach]]''
*''[[Halo: Fall of Reach]]''
**''[[Halo: Fall of Reach - Boot Camp|Boot Camp]]''
**''[[Halo: Fall of Reach - Covenant|Covenant]]''
**''[[Halo: Fall of Reach - Invasion|Invasion]]''
*''[[Halo: Combat Evolved Anniversary]]''
*''[[Halo 4: Forward Unto Dawn]]''
*''[[Halo 4]]''
**''[[Spartan Ops]]''
*''[[Halo: Spartan Assault]]''
*''[[Halo: Initiation]]''
*''[[Halo: Escalation]]''
*''[[Halo: Mortal Dictata]]''
*''[[Halo 2: Anniversary]]''
*''[[Halo: Fleet Battles]]''
*''[[Halo: Last Light]]'' {{Mo}}
*''[[Halo: The Fall of Reach - The Animated Series]]''
*''[[Halo: Shadow of Intent]]''
*''[[Halo Mythos]]''
*''[[Halo Wars 2]]''
*''[[Halo: Legacy of Onyx]]''
*''[[Halo: Silent Storm]]'' {{Mo}}
*''[[Halo: Shadows of Reach]]'' {{Mo}}
{{Col-end}}


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


{{Covenant heavy weapons}}
{{Covenant Weapons}}
[[Category:Covenant naval weapons]]
[[Category:Covenant naval weapons]]
[[Category:Starship weapons]]
[[Category:Starship Weapons]]
[[Category:Directed-energy weapons]]
[[Category:Directed-energy weapons]]

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