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An '''Orbital Defense Platform''', or '''ODP''', is a class of large [[UNSC]] space stations used to defend locations of great importance, typically planets of high strategic value.
An '''Orbital Defense Platform''', or '''ODP''', is a class of large [[UNSC]] space stations used to defend locations of great importance, typically planets of high strategic value.


Stations are frequently placed in [[Geosynchronous]] orbit and deployed in groups, or clusters, of 2 to 5. The well-equipped and large bridge of an ODP is suitable for directing large-scale engagements. Such was the case when [[Lord Hood|Fleet Admiral Sir Terrence Hood]] directed UNSC forces from an ODP during the [[First Battle of Earth|First]] and [[Second Battle of Earth]]. The most effective method to destroy these great Platforms is via Covenant Boarding Craft. These craft would avoid the heavy slugs, and then plant a bomb. In order to avoid this, the UNSC would attempt to repel the boarders. <ref>[[Halo 2]], Cairo Station Level</ref>
Stations are frequently placed in [[Geosynchronous]] orbit and deployed in groups, or clusters, of 2 to 5. The well-equipped and large bridge of an ODP is suitable for directing large-scale engagements. Such was the case when [[Lord Hood|Fleet Admiral Sir Terrence Hood]] directed UNSC forces from an ODP during the [[First Battle of Earth|First]] and [[Second Battle of Earth]]. The most effective method to destroy these great Platforms is via Covenant Boarding Craft. These craft would avoid the heavy slugs, and then plant a bomb. In order to avoid this, the UNSC would attempt to repel the boarders. <ref>''[[Halo 2]]'', [[Cairo Station (Level)]]</ref>
 
== Facilities ==
== Facilities ==
 
Internally, the stations are remarkably spacious, complete with high ceilings and a monorail system to move personnel and equipment. In addition to numerous small craft bays, there are two docks for larger ships, such as [[freighter]]s, or even [[UNSC Frigate|frigates]]. These docking bays could possibly be used to hold [[Longsword fighter]]s used to protect the station from hostile spacecraft. The design incorporates many features against potential hostile boarding action, including security stations and small arms racks situated at strategic locations.<ref name="armory">Halo 2, [[The Armory (Level)]], Cutscene</ref>
Internally, the stations are remarkably spacious, complete with high ceilings and a monorail system to move personnel and equipment. In addition to numerous small craft bays, there are two docks for larger ships, such as [[freighter]]s, or even [[UNSC Frigate|frigates]]. These docking bays could possibly be used to hold [[Longsword fighter]]s used to protect the station from hostile spacecraft. The design incorporates many features against potential hostile boarding action, including security stations and small arms racks situated at strategic locations.<ref name="armory">Halo 2, [[The Armory (Level)]], cutscene</ref>


=== Armament ===
=== Armament ===
The primary and crucial armament is a Mk. V "''Super''" [[MAC]] gun capable of causing near-fatal damage to even a shielded [[Covenant]] capital warship with a single slug. It can shoot a shell at enormous velocities, plus the shell usually weighs 3,000 tons which is a factor to whether or not it can penetrate a enemy ships shields in one shot.<ref name="armory"/> As with starship-mounted MACs, a platform's cannon is commonly controlled by an [[AI]].
The primary and crucial armament is a Mk. V "''Super''" [[MAC]] gun capable of causing near-fatal damage to even a shielded [[Covenant]] capital warship with a single slug. It can shoot a shell at enormous velocities, plus the shell usually weighs 3,000 tons which is a factor to whether or not it can penetrate a enemy ships shields in one shot.<ref name="armory"/> As with starship-mounted MACs, a platform's cannon is commonly controlled by an [[AI]].
Curiously, no sources indicate the presence of additional weapons, such as point defense cannons commonly mounted on [[UNSC]] warships(the absence of such weapons may explain why so many Covenant Boarding Craft were able to latch onto the Platforms orbiting Reach and Earth). However, the possibility that ODPs are armed with such weapons cannot be ruled out yet. The apparent lack of point-defense cannons may be explained by the fact that transient magnetic bursts tend to magnetize the weapons.<ref name="point-defense"/>
Curiously, no sources indicate the presence of additional weapons, such as point defense cannons commonly mounted on [[UNSC]] warships(the absence of such weapons may explain why so many Covenant Boarding Craft were able to latch onto the Platforms orbiting Reach and Earth). However, the possibility that ODPs are armed with such weapons cannot be ruled out yet. The apparent lack of point-defense cannons may be explained by the fact that transient magnetic bursts tend to magnetize the weapons.<ref name="point-defense"/>


=== Power plant ===
=== Power plant ===
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== Deployment ==
== Deployment ==
=== Reach ===
=== Reach ===
 
By August [[2552]], [[Reach]] was protected by twenty ODPs.  During the [[Battle of Reach]], [[Marines]] and [[SPARTAN-II|Spartans]] were deployed to protect the orbital platforms' planetside power generators but were ultimately unable to do so against determined enemy assaults. The disabling of the defense platforms was a major factor on the battle's outcome<ref>''[[Halo: The Fall of Reach]]'', page reference needed</ref>
By August [[2552]], [[Reach]] was protected by twenty ODPs.  During the [[Battle of Reach]], [[Marines]] and [[SPARTAN-II|Spartans]] were deployed to protect the orbital platforms' planetside power generators but were ultimately unable to do so against determined enemy assaults. The disabling of the defense platforms was a major factor on the battle's outcome<ref>[[Halo: The Fall of Reach]], page reference needed</ref>.


=== Earth ===
=== Earth ===
The outbreak of the [[Human-Covenant War]] prompted a massive expansion of [[Earth]]'s defenses. Even as late as the [[Battle of Reach]] preparations had not yet been completed.<ref>[[Halo: First Strike]], pg. 104</ref> By October 2552, some 300 ODPs were operational.<ref name="armory"/> Many of Earth's ODPs were named after points of interest that they roughly kept station over.
The outbreak of the [[Human-Covenant War]] prompted a massive expansion of [[Earth]]'s defenses. Even as late as the [[Battle of Reach]] preparations had not yet been completed.<ref>''[[Halo: First Strike]]'', page 104</ref> By October 2552, some 300 ODPs were operational.<ref name="armory"/> Many of Earth's ODPs were named after points of interest that they roughly kept station over.


A portion and small section of the 300 platforms first saw action at the [[First Battle of Earth]]. ''[[Athens Station]]'' and ''[[Malta Station]]'' were each destroyed by conveniently placed [[Covenant Bomb]]s installed by [[Covenant]] boarding parties, while ''[[Cairo Station]]'' only narrowly avoided the same fate as the other platforms thanks to [[Master Chief]]'s removal of the Covenant bomb on board.<ref>Halo 2, [[Cairo Station (Level)]]</ref>  
A portion and small section of the 300 platforms first saw action at the [[First Battle of Earth]]. ''[[Athens Station]]'' and ''[[Malta Station]]'' were each destroyed by conveniently placed [[Covenant Bomb]]s installed by [[Covenant]] boarding parties, while ''[[Cairo Station]]'' only narrowly avoided the same fate as the other platforms thanks to [[John-117|Master Chief]]'s removal of the Covenant bomb on board.<ref>''[[Halo 2]]'', [[Cairo Station (Level)]]</ref>  
The ODPs were also used in the [[Second Battle of Earth]], but the Covenant might have already destroyed numerous stations when Truth led a second fleet to Earth.<ref>Halo 2, [[The Great Journey (Level)]]</ref>
The ODPs were also used in the [[Second Battle of Earth]], but the Covenant might have already destroyed numerous stations when Truth led a second fleet to Earth.<ref>''[[Halo 2]]'', [[The Great Journey (Level)]]</ref>


== Known ODPs ==
== Known ODPs ==
*''[[Athens Station]]'' UNSCDF-ODA144 (Destroyed)
*''[[Athens Station]]'' UNSCDF-ODA144 (Destroyed)
*''[[Cairo Station]]'' UNSCDF-ODA142 (Damaged)
*''[[Cairo Station]]'' UNSCDF-ODA142 (Damaged)
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==Trivia==
==Trivia==
*All known Orbital Defense Platforms over Earth are named after cities on Earth, most probably because they float over those very locations in [[List of Scientific Inaccuracies in Halo|geosynchronous orbit]]. Some examples are Cairo, Athens, and Malta.
*All known Orbital Defense Platforms over Earth are named after cities on Earth, most probably because they float over those very locations in [[List of Scientific Inaccuracies in Halo|geosynchronous orbit]]. Some examples are Cairo, Athens, and Malta.
*The fact that there are 300 ODPs could be a reference to the Battle of Thermopylae, in which 300 Spartans used the phalanx formation to hold their own against an army of 200,000 Persians.
*The fact that there are 300 ODPs could be a reference to the Battle of Thermopylae, in which 300 Spartans used the phalanx formation to hold their own against an army of more than 200,000 Persians.


==References==
==References==
<ref name="point-defense">[[Halo: The Fall of Reach]], p. 275</ref>
<ref name="point-defense">''[[Halo: The Fall of Reach]]'', page 275</ref>
<references/>
<references/>
[[Category:UNSC]]
[[Category:UNSC]]
[[Category:Technology]]
[[Category:Technology]]

Revision as of 11:57, June 16, 2009

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An Orbital Defense Platform, or ODP, is a class of large UNSC space stations used to defend locations of great importance, typically planets of high strategic value.

Stations are frequently placed in Geosynchronous orbit and deployed in groups, or clusters, of 2 to 5. The well-equipped and large bridge of an ODP is suitable for directing large-scale engagements. Such was the case when Fleet Admiral Sir Terrence Hood directed UNSC forces from an ODP during the First and Second Battle of Earth. The most effective method to destroy these great Platforms is via Covenant Boarding Craft. These craft would avoid the heavy slugs, and then plant a bomb. In order to avoid this, the UNSC would attempt to repel the boarders. [1]

Facilities

Internally, the stations are remarkably spacious, complete with high ceilings and a monorail system to move personnel and equipment. In addition to numerous small craft bays, there are two docks for larger ships, such as freighters, or even frigates. These docking bays could possibly be used to hold Longsword fighters used to protect the station from hostile spacecraft. The design incorporates many features against potential hostile boarding action, including security stations and small arms racks situated at strategic locations.[2]

Armament

The primary and crucial armament is a Mk. V "Super" MAC gun capable of causing near-fatal damage to even a shielded Covenant capital warship with a single slug. It can shoot a shell at enormous velocities, plus the shell usually weighs 3,000 tons which is a factor to whether or not it can penetrate a enemy ships shields in one shot.[2] As with starship-mounted MACs, a platform's cannon is commonly controlled by an AI. Curiously, no sources indicate the presence of additional weapons, such as point defense cannons commonly mounted on UNSC warships(the absence of such weapons may explain why so many Covenant Boarding Craft were able to latch onto the Platforms orbiting Reach and Earth). However, the possibility that ODPs are armed with such weapons cannot be ruled out yet. The apparent lack of point-defense cannons may be explained by the fact that transient magnetic bursts tend to magnetize the weapons.[3]

Power plant

ODPs do not possess the power generation equipment necessary to fire their main armament. Instead, they receive power from ground-based generators. A possible strategy to neutralize the formidable ODPs would be to disable the generators via ground assault, this would disable the platform's weaponry without destroying it, allowing this valuable prize to be captured. The Covenant used this strategy during their invasion of Reach, dropping troops to the planet's surface and destroying these generators. This paved the way for Covenant forces to completely overwhelm the UNSC forces in the space battle over Reach.

Template:ODF Locations

Deployment

Reach

By August 2552, Reach was protected by twenty ODPs. During the Battle of Reach, Marines and Spartans were deployed to protect the orbital platforms' planetside power generators but were ultimately unable to do so against determined enemy assaults. The disabling of the defense platforms was a major factor on the battle's outcome[4]

Earth

The outbreak of the Human-Covenant War prompted a massive expansion of Earth's defenses. Even as late as the Battle of Reach preparations had not yet been completed.[5] By October 2552, some 300 ODPs were operational.[2] Many of Earth's ODPs were named after points of interest that they roughly kept station over.

A portion and small section of the 300 platforms first saw action at the First Battle of Earth. Athens Station and Malta Station were each destroyed by conveniently placed Covenant Bombs installed by Covenant boarding parties, while Cairo Station only narrowly avoided the same fate as the other platforms thanks to Master Chief's removal of the Covenant bomb on board.[6] The ODPs were also used in the Second Battle of Earth, but the Covenant might have already destroyed numerous stations when Truth led a second fleet to Earth.[7]

Known ODPs

Trivia

  • All known Orbital Defense Platforms over Earth are named after cities on Earth, most probably because they float over those very locations in geosynchronous orbit. Some examples are Cairo, Athens, and Malta.
  • The fact that there are 300 ODPs could be a reference to the Battle of Thermopylae, in which 300 Spartans used the phalanx formation to hold their own against an army of more than 200,000 Persians.

References

[3]