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Airlock: Difference between revisions

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{{Era|Forerunner|Human|UNSC|HCW|RW}}
{{Status|Canon}}
[[File:1208375252 Airlock-floorsign.gif|thumb|UNSC airlock floor sign]]
[[File:1208375252 Airlock-floorsign.gif|thumb|UNSC airlock floor sign]]
An '''airlock''' is a device which allows passage between two areas of drastically different pressures and/or atmospheric composition, while preventing the exchange of gases and pressure. They are most commonly used on spacecraft, where they allow safe passage between the pressurized interior of the ship and the vacuum of space. An airlock consists of a small chamber with two airtight doors in series, which do not open simultaneously.
An '''airlock''' is a device which allows passage between two areas of drastically different pressures and/or atmospheric composition, while preventing the exchange of gases and pressure. An airlock consists of a small chamber with two airtight doors in series, which do not open simultaneously. They are most commonly used on spacecraft, where they allow safe passage between the pressurized interior of the ship and the vacuum of space, though they can also be found in enclosed habitats on worlds with toxic atmospheres, for example.<ref>'''Halo: Fractures''', "A Necessary Truth"</ref>


On [[United Nations Space Command|UNSC]] spacecraft, [[hangar bay]]s, [[Class-3 Enclosed Heavy Lifeboat|lifepod]] or [[Single Occupant Exoatmospheric Insertion Vehicle|HEV]] launch areas are typically equipped with airlocks, used to prevent pressure loss from exposure to vacuum either due to a hull breach or the deployment of a lifepod or HEV.<ref>'''[[Halo: The Flood]]'''</ref> [[Halcyon-class cruiser]]s, in particular, employ them as redundancy features for survivability during combat with [[Covenant Empire|Covenant]] warships. The {{UNSCShip|Hopeful}} also had an airlock large enough to cycle a fleet of dropships simultaneously.<ref>'''Halo: Ghosts of Onyx''', ''page 99''</ref>
On [[United Nations Space Command|UNSC]] spacecraft, [[hangar bay]]s, [[Class-3 Enclosed Heavy Lifeboat|lifepod]] or [[drop pod]] launch areas are typically equipped with airlocks, used to prevent pressure loss from exposure to vacuum either due to a hull breach or the deployment of a lifepod or HEV.<ref>'''[[Halo: The Flood]]'''</ref> {{Class|Halcyon|cruiser}}s, in particular, employ them as redundancy features for survivability during combat with [[Covenant]] warships. The {{UNSCShip|Hopeful}} had an airlock large enough to cycle a fleet of dropships simultaneously.<ref>'''Halo: Ghosts of Onyx''', ''page 99''</ref>


The Covenant typically employs [[energy barrier]]s in place of physical airlocks. Certain UNSC facilities also employ energy barriers for this purpose, presumably having reverse-engineered Covenant or Forerunner versions.
The Covenant typically employs [[energy barrier]]s in place of physical airlocks. Certain UNSC facilities also employ energy barriers for this purpose, presumably having reverse-engineered Covenant or Forerunner versions.


==Known airlocks==
==Identified airlocks==
*[[UNSC Pillar of Autumn#Airlocks|Airlocks on the ''Pillar of Autumn'']]
*[[UNSC Pillar of Autumn#Airlocks|Airlocks on the ''Pillar of Autumn'']]
*[[Umbilical|Cairo Station umbilical locks]]
*[[Umbilical|Cairo Station umbilical locks]]
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==List of appearances==
==List of appearances==
*''[[Halo: The Fall of Reach]]'' {{1st}}
*''[[Halo: Combat Evolved]]''
*''[[Halo: Combat Evolved]]''
*''[[Halo: The Fall of Reach]]'' {{1st}}
*''[[Halo: The Flood]]''
*''[[Halo: The Flood]]''
*''[[Halo 2]]''
*''[[Halo 2]]''
*''[[Halo: Ghosts of Onyx]]''
*''[[Halo: Ghosts of Onyx]]''
*''[[Halo: Uprising]]''
*''[[Halo: Uprising]]''
*''[[Halo: Glasslands]]''
*''[[Halo: Combat Evolved Anniversary]]''
*''[[Halo 4]]''
*''[[Halo 2: Anniversary]]''
*''[[Halo 5: Guardians]]''
*''[[Halo: Fractures]]''
**''[[Breaking Strain]]'' {{Mo}}
**''[[A Necessary Truth]]'' {{Mo}}
**''[[Into the Fire]]''


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


{{Halcyon Locations}}
{{Halcyon Locations}}

Latest revision as of 09:50, July 4, 2024

UNSC airlock floor sign

An airlock is a device which allows passage between two areas of drastically different pressures and/or atmospheric composition, while preventing the exchange of gases and pressure. An airlock consists of a small chamber with two airtight doors in series, which do not open simultaneously. They are most commonly used on spacecraft, where they allow safe passage between the pressurized interior of the ship and the vacuum of space, though they can also be found in enclosed habitats on worlds with toxic atmospheres, for example.[1]

On UNSC spacecraft, hangar bays, lifepod or drop pod launch areas are typically equipped with airlocks, used to prevent pressure loss from exposure to vacuum either due to a hull breach or the deployment of a lifepod or HEV.[2] Halcyon-class cruisers, in particular, employ them as redundancy features for survivability during combat with Covenant warships. The UNSC Hopeful had an airlock large enough to cycle a fleet of dropships simultaneously.[3]

The Covenant typically employs energy barriers in place of physical airlocks. Certain UNSC facilities also employ energy barriers for this purpose, presumably having reverse-engineered Covenant or Forerunner versions.

Identified airlocks[edit]

Gallery[edit]

List of appearances[edit]

Sources[edit]

  1. ^ Halo: Fractures, "A Necessary Truth"
  2. ^ Halo: The Flood
  3. ^ Halo: Ghosts of Onyx, page 99
Halcyon-class light cruiser locations
Airlock - Armory - Bridge - Class Seven service corridor - Cryo B - Engineering
Launch Bay 7 - Lifepods - Maintenance - Mess Hall
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