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{{Era|Covenant|Human|UNSC|HCW|Post}}
{{Status|Canon}}
{{Wikipedia}}
{{Wikipedia}}
{{Center|''For the Spartan armor variant, see [[MJOLNIR Powered Assault Armor/V variant]].''}}
{{Center|'''''EVA''' redirects here. For the MJOLNIR armor variant, see [[EVA-class Mjolnir]].''}}
[[File:HCEA Terminals AmericanAstronaut.jpg|thumb|right|300px|An [[United Republic of North America|American]] astronaut on [[Luna]].<ref>''[[Halo: Combat Evolved Anniversary]]'', [[Terminal (Halo: Combat Evolved Anniversary)/One|Terminal One]]</ref>]]
[[File:HCEA Terminals AmericanAstronaut.jpg|thumb|300px|An [[United Republic of North America|American]] astronaut on [[Luna]].<ref>''[[Halo: Combat Evolved Anniversary]]'', [[Terminal (Halo: Combat Evolved Anniversary)/One|Terminal One]]</ref>]]
'''Extra-vehicular activity''', often abbreviated simply to '''EVA''', is the term applied to external operations by specialist personnel in a vacuum environment outside of a spaceship.
'''Extra-vehicular activity''', often abbreviated simply to '''EVA''', is the term applied to external operations by specialist personnel in a vacuum environment outside of a spaceship.


==Usage==
==Usage==
===Human operation===
===Human operation===
[[File:HM-Infinity.png|thumb|300px|A [[United Nations Space Command|UNSC]] specialist performing an EVA.]]
[[File:HM Infinity.jpg|thumb|300px|A [[United Nations Space Command|UNSC]] specialist performing an EVA.]]
[[Vacuum suit|Pressurized suits]] are a necessity during EVA operations due to the vacuum of space. In addition, [[thruster pack]]s are needed for maneuvering when not tethered to a spacecraft. Combat EVAs pose a significantly greater risk to those performing it, due to the chance of suit decompression in the vacuum if hit by bullets, shrapnel, etc. [[Civilian]] welders and technicians perform EVAs in order to repair ships, such as that performed upon the {{UNSCShip|Gettysburg}} in the [[Eridanus system]].<ref>'''[[Halo: First Strike]]''', ''page 90'' (2003 edition); ''page 336'' (2010 edition)</ref> The UNSC also employs specialized EVA-equipped engineers on their warships such as the {{UNSCShip|Spirit of Fire}} to perform repairs and maintenance work on the outer hull. Specialized zero-G vehicles are also used to perform EVA, such as the [[OF92 Booster Frame|Open Frame 92/Extra-Vehicular Activity]].<ref>'''[[Halo Legends]]''', ''[[The Package (animated short)|The Package]]''</ref>
[[Vacuum suit|Pressurized suits]] are a necessity during EVA operations due to the vacuum of space. In addition, [[thruster pack]]s are needed for maneuvering when not tethered to a spacecraft. Combat EVAs pose a significantly greater risk to those performing it, due to the chance of suit decompression in the vacuum if hit by bullets, shrapnel, etc. [[Civilian]] welders and technicians perform EVAs in order to repair ships, such as that performed upon the {{UNSCShip|Gettysburg}} in the [[Eridanus system]].<ref>'''[[Halo: First Strike]]''', ''page 90'' (2003 edition); ''page 336'' (2010 edition)</ref> The UNSC also employs specialized EVA-equipped engineers on their warships such as the {{UNSCShip|Spirit of Fire}} to perform repairs and maintenance work on the outer hull. Specialized zero-G vehicles are also used to perform EVA, such as the [[OF92 Booster Frame|Open Frame 92/Extra-Vehicular Activity]].<ref>'''[[Halo Legends]]''', ''[[The Package (animated short)|The Package]]''</ref>


The pilot variant of the [[UNSC Marine Corps Battle Dress Uniform]] was generally equipped with extra-vehicular activity integration for any exoatmospheric operations.<ref>'''[[Halo Encyclopedia]]''', ''page 57'' (2011 edition)</ref> The [[Summa Deep Space Incident]] sparked multiple projects related to research of EVA equipment, including the [[MJOLNIR Powered Assault Armor/V variant|MJOLNIR EVA variant]], designed for better extra-vehicular activity performance.<ref>'''[[Halo 3]]''', ''in-game [[armor permutations (Halo 3)|armor permutation]] description''</ref>
The pilot variant of the [[UNSC Marine Corps Battle Dress Uniform]] was generally equipped with extra-vehicular activity integration for any exoatmospheric operations.<ref>'''[[Halo Encyclopedia (2009 edition)]]''', ''page 57'' (2011 edition)</ref> The [[Summa Deep Space Incident]] sparked multiple projects related to research of EVA equipment, including the [[MJOLNIR Powered Assault Armor/V variant|MJOLNIR EVA variant]], designed for better extra-vehicular activity performance.<ref>'''[[Halo 3]]''', ''in-game [[Armor customization (Halo 3)|armor permutation]] description''</ref>


[[SPARTAN-II program|SPARTAN-II]] [[Blue Team]] has performed several notable combat EVAs: At the [[Battle of Chi Ceti]] in [[2525]], they inserted into a [[Covenant]] [[Unrelenting|warship]], planted a missile warhead and were extracted by a [[D77-TC Pelican]];<ref>'''[[Halo: The Fall of Reach]]''', ''page 152''</ref> At the [[Fall of Reach]], in [[2552]], they performed another EVA in order to purge [[UNSC Circumference|a ship]]'s NAV database on an [[Gamma Station|orbital station]] in accordance with the [[Cole Protocol]].<ref name="for">'''Halo: The Fall of Reach''', ''page 308''</ref> [[John-117]] of Blue Team performed an EVA mission aboard the ''[[Ascendant Justice]]'' while in an anomalous slipspace dimension,<ref>'''Halo: First Strike''', ''page 280'' (2003 edition); ''page 114'' (2010 edition)</ref> the first known [[slipstream space|slipspace]] EVA and another at [[Earth]], clearing hostiles off the outside of the [[Cairo Station (station)|''Cairo'']] [[orbital defense platform]] and removing and re-purposing a Covenant [[antimatter bomb]].<ref name="h2">'''[[Halo 2]]''', [[campaign]] level ''[[Cairo Station]]''</ref>
[[SPARTAN-II program|SPARTAN-II]] [[Blue Team]] has performed several notable combat EVAs: At the [[Battle of Chi Ceti]] in [[2525]], they inserted into a [[Covenant]] [[Unrelenting|warship]], planted a missile warhead and were extracted by a [[D77-TC Pelican]];<ref>'''[[Halo: The Fall of Reach]]''', ''page 152''</ref> At the [[Fall of Reach]], in [[2552]], they performed another EVA in order to purge [[UNSC Circumference|a ship]]'s NAV database on an [[Gamma Station|orbital station]] in accordance with the [[Cole Protocol]].<ref name="for">'''Halo: The Fall of Reach''', ''page 308''</ref> [[John-117]] of Blue Team performed an EVA mission aboard the ''[[Ascendant Justice]]'' while in an anomalous slipspace dimension,<ref>'''Halo: First Strike''', ''page 280'' (2003 edition); ''page 114'' (2010 edition)</ref> the first known [[slipstream space|slipspace]] EVA and another at [[Earth]], clearing hostiles off the outside of the [[Cairo Station (station)|''Cairo'']] [[orbital defense platform]] and removing and re-purposing a Covenant [[antimatter bomb]].<ref name="h2">'''[[Halo 2]]''', [[campaign]] level ''[[Cairo Station]]''</ref>
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===Covenant operation===
===Covenant operation===
The Covenant also perform extra-vehicular activity. [[Sangheili Ranger]]s use specialized vacuum-sealed armor to protect themselves from the effects of a vacuum environment, in order to plant [[antimatter charge]]s and support boarding parties.<ref name="for"/><ref name="h2"/> [[Kig-Yar Ranger]]s in vacuum suits were also used, though their suits were more easily damaged than a Sangheili suit as they were built for external maintenance and lacked personal [[energy shielding]].<ref>'''[[Halo: Contact Harvest]]''', ''pages 124-125''</ref><ref>'''[[Halo Wars: Genesis]]'''</ref> Sangheili, Kig-Yar, and [[Unggoy Ranger]]s were employed by [[Jul 'Mdama]]'s [[Jul 'Mdama's Covenant faction|reformed Covenant faction]] for extra-vehicular activity purposes.<ref name="H4 Interactive Guide">[http://www.halowaypoint.com/en-US/halo4guide '''Halo 4 Interactive Guide''']</ref>
The Covenant also perform extra-vehicular activity. [[Sangheili Ranger]]s use specialized vacuum-sealed armor to protect themselves from the effects of a vacuum environment, in order to plant [[antimatter charge]]s and support boarding parties.{{Ref/Reuse|for}}{{Ref/Reuse|h2}} [[Kig-Yar Ranger]]s in vacuum suits were also used, though their suits were more easily damaged than a Sangheili suit as they were built for external maintenance and lacked personal [[energy shielding]].<ref>'''[[Halo: Contact Harvest]]''', ''pages 124-125''</ref><ref>'''[[Halo Wars: Genesis]]'''</ref> Sangheili, Kig-Yar, and [[Unggoy Ranger]]s were employed by [[Jul 'Mdama]]'s [[Jul 'Mdama's Covenant faction|reformed Covenant faction]] for extra-vehicular activity purposes.<ref name="H4 Interactive Guide">[http://www.halowaypoint.com/en-US/halo4guide '''Halo 4 Interactive Guide''']</ref>


==Gallery==
==Gallery==
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File:Halo-A-Hero-Falls-Spacewoman.png|A non-combat vacuum suit in [[2558]].
File:Halo-A-Hero-Falls-Spacewoman.png|A non-combat vacuum suit in [[2558]].
File:EVAArmor.png|EVA armor used by Spartans.
File:EVAArmor.png|EVA armor used by Spartans.
File:MarineVacSuit.png|A [[UNSC Marine Corps|UNSC Marine]] during an EVA operation.
File:HWG MarineVacSuit.png|A [[UNSC Marine Corps|UNSC Marine]] during an EVA operation.
File:VacMarinesFight.png|UNSC Marines engaged in EVA combat.
File:HWG VacMarinesFight.png|UNSC Marines engaged in EVA combat.
File:Jackal Rangers.jpg|[[Kig-Yar Ranger]]s fighting in a vacuum.
File:HWG JackalRangers.png|[[Kig-Yar Ranger]]s fighting in a vacuum.
</gallery>
</gallery>


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*''[[Halo: Fireteam Raven]]''
*''[[Halo: Fireteam Raven]]''
*''[[Halo: Silent Storm]]''
*''[[Halo: Silent Storm]]''
*''[[Halo Infinite]]''


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


[[Category:Military Terminology]]
[[Category:Military terminology]]
[[Category:Terms and phrases]]
[[Category:Terms and phrases]]

Latest revision as of 11:06, January 27, 2024

Wikipedia.png
 There is more information available on this subject at Extra-vehicular activity on the English Wikipedia.
EVA redirects here. For the MJOLNIR armor variant, see EVA-class Mjolnir.
An American astronaut on Luna.[1]

Extra-vehicular activity, often abbreviated simply to EVA, is the term applied to external operations by specialist personnel in a vacuum environment outside of a spaceship.

Usage[edit]

Human operation[edit]

An illustration of Infinity and its fleet.
A UNSC specialist performing an EVA.

Pressurized suits are a necessity during EVA operations due to the vacuum of space. In addition, thruster packs are needed for maneuvering when not tethered to a spacecraft. Combat EVAs pose a significantly greater risk to those performing it, due to the chance of suit decompression in the vacuum if hit by bullets, shrapnel, etc. Civilian welders and technicians perform EVAs in order to repair ships, such as that performed upon the UNSC Gettysburg in the Eridanus system.[2] The UNSC also employs specialized EVA-equipped engineers on their warships such as the UNSC Spirit of Fire to perform repairs and maintenance work on the outer hull. Specialized zero-G vehicles are also used to perform EVA, such as the Open Frame 92/Extra-Vehicular Activity.[3]

The pilot variant of the UNSC Marine Corps Battle Dress Uniform was generally equipped with extra-vehicular activity integration for any exoatmospheric operations.[4] The Summa Deep Space Incident sparked multiple projects related to research of EVA equipment, including the MJOLNIR EVA variant, designed for better extra-vehicular activity performance.[5]

SPARTAN-II Blue Team has performed several notable combat EVAs: At the Battle of Chi Ceti in 2525, they inserted into a Covenant warship, planted a missile warhead and were extracted by a D77-TC Pelican;[6] At the Fall of Reach, in 2552, they performed another EVA in order to purge a ship's NAV database on an orbital station in accordance with the Cole Protocol.[7] John-117 of Blue Team performed an EVA mission aboard the Ascendant Justice while in an anomalous slipspace dimension,[8] the first known slipspace EVA and another at Earth, clearing hostiles off the outside of the Cairo orbital defense platform and removing and re-purposing a Covenant antimatter bomb.[9]

By 2554, extensive EVA training was common for all Spartans.[10]

Covenant operation[edit]

The Covenant also perform extra-vehicular activity. Sangheili Rangers use specialized vacuum-sealed armor to protect themselves from the effects of a vacuum environment, in order to plant antimatter charges and support boarding parties.[7][9] Kig-Yar Rangers in vacuum suits were also used, though their suits were more easily damaged than a Sangheili suit as they were built for external maintenance and lacked personal energy shielding.[11][12] Sangheili, Kig-Yar, and Unggoy Rangers were employed by Jul 'Mdama's reformed Covenant faction for extra-vehicular activity purposes.[13]

Gallery[edit]

  • A non-combat vacuum suit in 2558.

    A non-combat vacuum suit in 2558.

  • EVA armor used by Spartans.

    EVA armor used by Spartans.

  • A UNSC Marine during an EVA operation.

    A UNSC Marine during an EVA operation.

  • UNSC Marines engaged in EVA combat.

    UNSC Marines engaged in EVA combat.

  • Kig-Yar Rangers fighting in a vacuum.

    Kig-Yar Rangers fighting in a vacuum.

List of appearances[edit]

Sources[edit]

  1. ^ Halo: Combat Evolved Anniversary, Terminal One
  2. ^ Halo: First Strike, page 90 (2003 edition); page 336 (2010 edition)
  3. ^ Halo Legends, The Package
  4. ^ Halo Encyclopedia (2009 edition), page 57 (2011 edition)
  5. ^ Halo 3, in-game armor permutation description
  6. ^ Halo: The Fall of Reach, page 152
  7. ^ a b Halo: The Fall of Reach, page 308
  8. ^ Halo: First Strike, page 280 (2003 edition); page 114 (2010 edition)
  9. ^ a b Halo 2, campaign level Cairo Station
  10. ^ Halo: Fractures, Lessons Learned
  11. ^ Halo: Contact Harvest, pages 124-125
  12. ^ Halo Wars: Genesis
  13. ^ Halo 4 Interactive Guide
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