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[[File:Refit Constitution class navigational deflector.jpg|thumb|The navigational deflector of the {{USS|Enterprise|NCC-1701-A|-A}}]]
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[[File:Refit Constitution class navigational deflector.jpg|thumb|The navigational deflector of the USS ''Enterprise''-A]]
[[File:USS Enterprise (alternate universe) deflector dish.jpg|thumb|The navigational deflector of the [[USS Enterprise (alternate reality)|alternate reality USS ''Enterprise'']] opens]]
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[[File:USS Enterprise (alternate universe) deflector dish.jpg|thumb|The navigational deflector of the alternate reality USS ''Enterprise'' opens]]
[[File:Galaxy class navigational deflector.jpg|thumb|The navigational deflector of a {{ShipClass|Galaxy}} starship]]
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[[File:Galaxy class navigational deflector.jpg|thumb|The navigational deflector of a ''Galaxy''-class starship]]
[[File:Enterprise-E deflector and particle emitter.jpg|thumb|The navigational deflector on a {{ShipClass|Sovereign}} starship]]
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[[File:Sovereign class deflector dish.jpg|thumb|The navigational deflector on a ''Sovereign''-class starship]]
The '''navigational deflector''' (also called the '''deflector dish''', the '''deflector array''' or the '''nav deflector''') is a component of many [[starship]]s, and is used to deflect space debris, [[asteroid]]s, microscopic [[particle]]s and other objects that might collide with the ship. At [[warp speed]] the deflector is virtually indispensable for most starships as even the most minute particle can cause serious damage to a ship when it is traveling at superluminal velocities. ({{VOY|Alliances}})
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The '''navigational deflector''' (also known just as the '''deflector''', the '''deflector array''', the '''deflector dish''', the '''main deflector''' or the '''nav deflector''' for short) was a component of many [[starship]]s, and was used to deflect space debris, [[asteroid]]s, microscopic [[particle]]s and other objects that might have collided with the ship. At [[warp speed]] the deflector was virtually indispensable for most starships as even the most minute particle could cause serious damage to a ship when it was traveling at superluminal velocities. ({{VOY|Alliances}})
   
== Technical Data ==
+
== Technical data ==
 
The deflector commonly took the form of a dish-shaped [[force beam generator]] containing heavy-duty [[subspace]] accelerators at the extreme forward end of the vessel's [[secondary hull]]. It performed its primary function by emitting low-power [[deflector shield]]s to deflect microscopic particles and higher-powered deflector beams and/or [[tractor beam]]s to deflect larger objects. ({{film|8}}; {{VOY|Alliances|Shattered}})
{{pna-cite}}
 
The deflector commonly takes the form of a dish-shaped [[force beam generator]] containing heavy-duty [[subspace]] accelerators at the extreme forward end of the vessel's [[secondary hull]]. It performs its primary function by emitting low-power [[deflector shield]]s to deflect microscopic particles and higher-powered deflector beams and/or [[tractor beam]]s to deflect larger objects. ({{film|8}}; {{VOY|Alliances|Shattered}})
 
   
 
On the {{Class|Constitution}} starships the navigational deflector was a combined system with the ships' main [[duotronic]] [[sensor]]s. ({{TNG|Datalore}} ''[[:File:Constitution class profile, lcars, tngs1.jpg|computer screen]]''; {{DS9|Trials and Tribble-ations}} ''[[:File:Duotronic sensor array.jpg|computer screen]]'')
One potential problem of using the deflector is that the deflector beams produced cause a great deal of [[subspace distortion]], which can hinder the effectiveness of a starship's [[sensor]]s, and as a result of this the long-range [[sensor array]]s are placed in a circular fashion around the deflector. Not only does mounting the sensor arrays in this fashion reduce subspace interference by allowing both the sensors and the deflector beams to point on the same axis, essentially allowing the sensors to look through the distortion, it also allows for rapid reception of data which then could allow the [[computer]] to scan far ahead for navigational purposes.
 
   
  +
{{bginfo|According to ''[[Star Trek: The Next Generation Technical Manual]]'' (pg. 87), the long-range [[sensor array]] was a key element of the navigational deflector system as it was used to detect and track objects in the ship's flight path. The deflector beams caused a great deal of [[subspace distortion]], so the [[sensor array]]s were placed in a circular fashion around the deflector beam emitter array.}}
In the event of combat, the navigation deflector performs as the very [[deflector shield|first stage]] of a starship's defenses - the deflector can deflect most [[laser]] fire and primitive [[projectile weapon]]s. However, the deflector cannot deflect more complex [[weapon]]ry such as [[directed energy weapon]]s or more sophisticated projectile weapons, such as [[photon torpedo]]es.
 
   
A deflector's energy can be extended outward to protect other ships. In [[2266]], the {{USS|Enterprise|NCC-1701}} extended its deflector shield around [[Harry Mudd]]'s [[Unnamed Class J starships#Mudd's stolen starship|class J vessel]] to temporarily protect it from [[asteroid]]s while its crew were [[transporter|transported]] to safety. ({{TOS|Mudd's Women}})
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A deflector's energy could be extended outward to protect other ships. In [[2266]], the {{USS|Enterprise|NCC-1701}} extended its deflector shield around [[Harry Mudd]]'s [[Unnamed Class J starships#Mudd's stolen starship|class J vessel]] to temporarily protect it from [[asteroid]]s while its crew were [[transporter|transported]] to safety. ({{TOS|Mudd's Women}}) The 24th century Federation starship navigational deflectors could easily deflect [[laser]] fire. ({{TNG|The Outrageous Okona}})
   
Ordinarily, [[Federation]] starships were equipped with a single external deflector dish. Early versions of this device were sometimes known as a "Meteorite Beam" ({{TOS|The Cage}}). In recent years, some starships are known to have more than one deflector. One example of this is the {{ShipClass|Intrepid}}, which has its main deflector located between the extreme forwards of decks 10 through 13 while the secondary deflector is located on the extreme forward of deck 6.
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Ordinarily, [[Federation]] starships were equipped with a single external deflector dish. In the [[2250s]] these devices were sometimes known as the ships' meteorite beam. ({{TOS|The Cage}}) In the late 24th century, some starships were known to have more than one deflector. One example of this was the {{Class|Intrepid}}, which had its main deflector located between the extreme forwards of decks 10 through 13, while the secondary deflector was located on the extreme forward of deck 6. ({{VOY|Caretaker}})
   
 
The deflector of the {{USS|Enterprise|NCC-1701-E|-E}} was charged with [[antiproton]]s while the Borg were modifying it. This proved to be a potential hazard as [[particle weapon]]s fire hitting the deflector could destroy much of the ship. ({{film|8}})
 
The deflector of the {{USS|Enterprise|NCC-1701-E|-E}} was charged with [[antiproton]]s while the Borg were modifying it. This proved to be a potential hazard as [[particle weapon]]s fire hitting the deflector could destroy much of the ship. ({{film|8}})
{{bginfo|It is unknown whether having the deflector charged with antiprotons is standard procedure, or if this was part of the Borg modifications.}}
 
   
 
=== Components of the system ===
 
=== Components of the system ===
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[[File:Deflector beam.jpg|thumb|A [[deflector beam]]]]
 
[[File:Deflector beam.jpg|thumb|A [[deflector beam]]]]
 
[[File:USS Enterprise-B fires resonance burst.jpg|thumb|A [[resonance burst]]]]
 
[[File:USS Enterprise-B fires resonance burst.jpg|thumb|A [[resonance burst]]]]
Due to its ability to project a wide variety of energies and particles, the navigational deflector is an extremely versatile piece of equipment. Many starship crews have made one-time modifications to the dish to solve whatever problem they may be facing.
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Due to its ability to project a wide variety of energies and particles, the navigational deflector was an extremely versatile piece of equipment. Many starship crews made one-time modifications to the dish to solve several problems they were facing.
   
 
=== ''Enterprise'' (NX-01) ===
 
=== ''Enterprise'' (NX-01) ===
In [[2154]], the navigational deflector of {{EnterpriseNX}} was used to generate a [[deflector pulse]] which destroyed [[Sphere 41]] and thus disrupting the entire network of spheres in the [[Delphic Expanse]]. Modifications had to be made, however, to prevent the pulse from rupturing [[EPS conduit]]s throughout the ship. ({{ENT|Countdown|Zero Hour}})
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In [[2154]], the navigational deflector of the {{EnterpriseNX}} was used to generate a [[deflector pulse]] which destroyed [[Sphere 41]], thus disrupting the entire network of spheres in the [[Delphic Expanse]]. Modifications had to be made, however, to prevent the pulse from rupturing [[EPS conduit]]s throughout the ship. ({{ENT|Countdown|Zero Hour}})
   
 
Later that year, the NX-01's deflector was modified to emit a [[positron]] burst, which disabled [[Harrad-Sar's barge]] when it passed through the [[grappler|grappling line]] of his ship. ({{ENT|Bound}})
 
Later that year, the NX-01's deflector was modified to emit a [[positron]] burst, which disabled [[Harrad-Sar's barge]] when it passed through the [[grappler|grappling line]] of his ship. ({{ENT|Bound}})
   
 
=== USS ''Enterprise'' (NCC-1701) ===
 
=== USS ''Enterprise'' (NCC-1701) ===
The {{USS|Enterprise|NCC-1701}} used a [[deflector beam]] to attempt to shift a large [[asteroid]] off course when it threatened the [[planet]] [[Amerind]] in [[2268]]. The attempt failed and caused damage to the ship's power ({{TOS|The Paradise Syndrome}}).
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The {{USS|Enterprise|NCC-1701}} used a [[deflector beam]] to attempt to shift a large [[asteroid]] off course when it threatened the [[planet]] [[Amerind]] in [[2268]]. The attempt failed and caused damage to the ship's power. ({{TOS|The Paradise Syndrome}})
 
On the {{Class|Constitution}} starships the navigational deflector was a combined system with the ships main [[duotronic]] [[sensor]]. ({{TNG|Datalore}} ''[[:File:Constitution class profile, lcars, tngs1.jpg|computer screen]]'', {{DS9|Trials and Tribble-ations}} ''[[:File:Duotronic sensor array.jpg|computer screen]]'')
 
   
 
=== USS ''Enterprise'' (NCC-1701-B) ===
 
=== USS ''Enterprise'' (NCC-1701-B) ===
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=== USS ''Enterprise'' (NCC-1701-D) ===
 
=== USS ''Enterprise'' (NCC-1701-D) ===
[[File:USS Enterprise-D navigational deflector.jpg|thumb|The {{USS|Enterprise|NCC-1701-D|-D}} fires its deflector dish as a weapon]]
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[[File:USS Enterprise-D navigational deflector.jpg|thumb|The USS ''Enterprise''-D fires its deflector dish as a weapon]]
 
*The crew of the {{USS|Enterprise|NCC-1701-D|-D}} used the deflector to channel an extremely large amount of energy at a controlled rate - both as a weapon against a [[Borg cube]] in [[2366]] ({{TNG|The Best of Both Worlds|The Best of Both Worlds, Part II}}) and as an energy source hoping to escape a [[Tyken's Rift]] in [[2367]]. ({{TNG|Night Terrors}}) Although the energy beam had a greater power output than the ship's complement of weapons, using the deflector for this purpose was extremely impractical and only ever used on two occasions for three reasons:
 
*The crew of the {{USS|Enterprise|NCC-1701-D|-D}} used the deflector to channel an extremely large amount of energy at a controlled rate - both as a weapon against a [[Borg cube]] in [[2366]] ({{TNG|The Best of Both Worlds|The Best of Both Worlds, Part II}}) and as an energy source hoping to escape a [[Tyken's Rift]] in [[2367]]. ({{TNG|Night Terrors}}) Although the energy beam had a greater power output than the ship's complement of weapons, using the deflector for this purpose was extremely impractical and only ever used on two occasions for three reasons:
 
**Channeling such a large amount of energy through the deflector made substantial drains on the ship's power systems, notably from the [[warp engine]]s. This also meant that the beam could only be fired if the ship was traveling at sublight velocities.
 
**Channeling such a large amount of energy through the deflector made substantial drains on the ship's power systems, notably from the [[warp engine]]s. This also meant that the beam could only be fired if the ship was traveling at sublight velocities.
 
**The deflector dish would burn out following the energy beam discharge, requiring extensive repairs, possibly replacement of the deflector altogether.
 
**The deflector dish would burn out following the energy beam discharge, requiring extensive repairs, possibly replacement of the deflector altogether.
**The high levels of [[radiation]] produced by the energy beam require the evacuation of the entire forward half of the [[secondary hull]] and the lower three decks of the [[saucer section]] of a {{ShipClass|Galaxy}} starship.
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**The high levels of [[radiation]] produced by the energy beam require the evacuation of the entire forward half of the [[secondary hull]] and the lower three decks of the [[saucer section]] of a {{Class|Galaxy}} starship.
 
*Also in 2367, the ''Enterprise''-D's deflector was modified to amplify and reflect the subspace frequencies produced by a [[cosmic string]] fragment to change the trajectory of a group of two-dimensional beings that threatened to destroy the ship. ({{TNG|The Loss}})
 
*Also in 2367, the ''Enterprise''-D's deflector was modified to amplify and reflect the subspace frequencies produced by a [[cosmic string]] fragment to change the trajectory of a group of two-dimensional beings that threatened to destroy the ship. ({{TNG|The Loss}})
[[File:Deflector dish firing 2368.jpg|thumb|The deflector dish fires 5 beams of light]]
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[[File:Deflector dish firing 2368.jpg|thumb|The deflector dish fires five beams of light]]
*In [[2368]], the deflector dish was modified to send 5 beams of light for exactly 8.3 seconds into the clouded [[atmosphere]] of [[Penthara IV]], together with a modified [[phaser]] blast. This would ionize dust particles in the planet's [[atmosphere]], which would be converted into high-energy [[plasma]]. This plasma was then absorbed by the deflector shields of the ''Enterprise''-D and redirected into space. Warp power had to be rerouted to the deflector dish to create enough energy for the massive undertaking. ({{TNG|A Matter of Time}})
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*In [[2368]], the deflector dish was modified to send five beams of light for exactly 8.3 seconds into the clouded [[atmosphere]] of [[Penthara IV]], together with a modified [[phaser]] blast. This ionized dust particles in the planet's [[atmosphere]], which were converted into high-energy [[plasma]]. This plasma was then absorbed by the deflector shields of the ''Enterprise''-D and redirected into space. Warp power had to be rerouted to the deflector dish to create enough energy for the massive undertaking. ({{TNG|A Matter of Time}})
 
*''In three different alternate timelines, the deflector was modified to emit an [[inverse tachyon pulse]] to scan beyond the [[subspace barrier]], this being done to ascertain the workings of an [[anti-time eruption]]. The convergence of the three tachyon pulse at the same point in space in multiple timeframes caused a paradox which created the eruption in the first instance.'' ({{TNG|All Good Things...}})
 
*''In three different alternate timelines, the deflector was modified to emit an [[inverse tachyon pulse]] to scan beyond the [[subspace barrier]], this being done to ascertain the workings of an [[anti-time eruption]]. The convergence of the three tachyon pulse at the same point in space in multiple timeframes caused a paradox which created the eruption in the first instance.'' ({{TNG|All Good Things...}})
   
 
=== USS ''Enterprise'' (NCC-1701-E) ===
 
=== USS ''Enterprise'' (NCC-1701-E) ===
[[File:Sovereign class deflector dish, damaged.jpg|thumb|The deflector on the {{USS|Enterprise|NCC-1701-E|-E}} after being damaged by the Borg]]
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[[File:Sovereign class deflector dish, damaged.jpg|thumb|The deflector on the USS ''Enterprise''-E after being damaged by the Borg]]
 
*A group of [[Borg]] attempted to modify the deflector of the {{USS|Enterprise|NCC-1701-E|-E}} to perform as an [[interplexing beacon]] so as to contact the [[Borg Collective|Collective]] of the [[21st century]]. The crew of the ''Enterprise'' prevented the attempt by detaching and destroying the deflector. The movement controller unit of the ''Enterprise''-E deflector was labeled "AE-35". ({{film|8}})
 
*A group of [[Borg]] attempted to modify the deflector of the {{USS|Enterprise|NCC-1701-E|-E}} to perform as an [[interplexing beacon]] so as to contact the [[Borg Collective|Collective]] of the [[21st century]]. The crew of the ''Enterprise'' prevented the attempt by detaching and destroying the deflector. The movement controller unit of the ''Enterprise''-E deflector was labeled "AE-35". ({{film|8}})
{{bginfo|AE-35 is a reference to ''{{w|2001: A Space Odyssey}}'', where the AE-35 unit controls the communication dish's orientation for the Discovery.}}
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{{bginfo|AE-35 is a reference to ''{{w|2001: A Space Odyssey}}'', where the AE-35 unit controls the communication dish's orientation for the ''Discovery''.}}
 
{{clear}}
 
{{clear}}
   
 
=== USS ''Defiant'' (NX-74205) ===
 
=== USS ''Defiant'' (NX-74205) ===
[[File:Focal array.jpg|thumb|The ''Defiant''{{'}}s deflectors [[focal array]] is utilized to generate a [[subspace tensor matrix]]]]
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[[File:Focal array.jpg|thumb|The ''Defiant''{{'}}s deflectors focal array is utilized to generate a subspace tensor matrix]]
* Navigational deflectors can also be used to emit [[graviton pulse]]s. ({{DS9|Once More Unto the Breach}})
+
* Navigational deflectors could also be used to emit [[graviton pulse]]s. ({{DS9|Once More Unto the Breach}})
   
* ''In an [[alternate timeline]] in early 2372, the {{USS|Defiant|2370}}'s deflector was used to shunt an excess amount of warp energy from the ship's [[warp core]] that threatened to destroy the ship in a [[warp core breach]]. ({{DS9|The Visitor}})''
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* ''In an [[alternate timeline]] in early 2372, the {{USS|Defiant|2370}}'s deflector was used to shunt an excess amount of warp energy from the ship's [[warp core]] that threatened to destroy the ship in a [[warp core breach]].'' ({{DS9|The Visitor}})
   
 
* During 2372 the deflector of the ''Defiant'' was modified in just ten minutes to perform as a single-shot phaser emitter when the ship was under attack from a [[Jem'Hadar fighter]] in the atmosphere of a [[Class J planet|class J]] [[gas giant]]. Only one shot could be fired with this makeshift [[phaser emitter]] as it overloaded with the first shot. ({{DS9|Starship Down}})
 
* During 2372 the deflector of the ''Defiant'' was modified in just ten minutes to perform as a single-shot phaser emitter when the ship was under attack from a [[Jem'Hadar fighter]] in the atmosphere of a [[Class J planet|class J]] [[gas giant]]. Only one shot could be fired with this makeshift [[phaser emitter]] as it overloaded with the first shot. ({{DS9|Starship Down}})
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=== USS ''Voyager'' (NCC-74656) ===
 
=== USS ''Voyager'' (NCC-74656) ===
[[File:USS Voyager emitting graviton beam.jpg|thumb|The {{USS|Voyager}} emits a resonant [[graviton beam]]]]
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[[File:USS Voyager emitting graviton beam.jpg|thumb|The USS ''Voyager'' emits a resonant graviton beam]]
 
[[File:Antitachyon.jpg|thumb|''Voyager'' emits an [[anti-tachyon pulse]] to seal a [[temporal rift]]]]
 
[[File:Antitachyon.jpg|thumb|''Voyager'' emits an [[anti-tachyon pulse]] to seal a [[temporal rift]]]]
* In [[2371]], the crew of the {{USS|Voyager}} modifed the ship's main deflector to emit a [[dampening field]] and [[warp particle]]s diverted from the [[warp nacelle|nacelles]], along with a [[Dekyon]] beam. The navigational array was also part of an analysis for possible issues in regards to being stuck in a [[type-4 quantum singularity]]. ({{VOY|Parallax}})
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* In [[2371]], the crew of the {{USS|Voyager}} modifed the ship's main deflector to emit a [[dampening field]] and [[warp particle]]s diverted from the [[warp nacelle|nacelles]], along with a [[dekyon]] beam. The navigational array was also part of an analysis for possible issues in regards to being stuck in a [[type-4 quantum singularity]]. ({{VOY|Parallax}})
   
 
* During the same year, the deflector was used to emit an [[inverted magnetic pulse]] to drive off a swarm of [[space-dwelling lifeform]]s. ({{VOY|Elogium}})
 
* During the same year, the deflector was used to emit an [[inverted magnetic pulse]] to drive off a swarm of [[space-dwelling lifeform]]s. ({{VOY|Elogium}})
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* In [[2374]], the ship's main deflector was modified by [[Seven of Nine]] to generate resonant [[graviton beam]]s to open a [[quantum singularity]] into [[fluidic space]]. ({{VOY|Scorpion, Part II}})
 
* In [[2374]], the ship's main deflector was modified by [[Seven of Nine]] to generate resonant [[graviton beam]]s to open a [[quantum singularity]] into [[fluidic space]]. ({{VOY|Scorpion, Part II}})
   
* ''During the same year in an [[alternate timeline]], a badly damaged ''Voyager'' lost its navigational deflector shields along with many other systems during the [[Year of Hell]]. Encountering a [[micro-meteoroid shower]], they were unprotected without their deflector and the ship began suffering even more damage. [[Captain]] [[Kathryn Janeway|Janeway]] restored the shields, although she was burned due to a massive fire in the [[Deflector room]].'' ({{VOY|Year of Hell, Part II}})
+
* ''During the same year in an [[alternate timeline]], a badly damaged ''Voyager'' lost its navigational deflector shields along with many other systems during the [[Year of Hell]]. Encountering a [[micro-meteoroid shower]], they were unprotected without their deflector and the ship began suffering even more damage. [[Captain]] [[Kathryn Janeway|Janeway]] restored the shields, although she was burned due to a massive fire in the [[deflector room]].'' ({{VOY|Year of Hell, Part II}})
   
 
* In [[2375]], [[Chakotay]] was able to induce a paralateral [[rentrillic trajectory]] for the ship as a way out of [[chaotic space]] by routing ''Voyager''{{'}}s [[sensor array]] through the ship's deflector dish, thereby increasing the deflector's amplitude. ({{VOY|The Fight}})
 
* In [[2375]], [[Chakotay]] was able to induce a paralateral [[rentrillic trajectory]] for the ship as a way out of [[chaotic space]] by routing ''Voyager''{{'}}s [[sensor array]] through the ship's deflector dish, thereby increasing the deflector's amplitude. ({{VOY|The Fight}})
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* The Borg "children" used a tractor beam in an attempt to steal Voyager's main deflector, to use it as an [[interplexing beacon]] for contacting the Borg. ({{VOY|Collective}})
 
* The Borg "children" used a tractor beam in an attempt to steal Voyager's main deflector, to use it as an [[interplexing beacon]] for contacting the Borg. ({{VOY|Collective}})
   
* Chakotay used the deflector as a "lighting rod" to stop ''Voyager'' from being fractured into different time periods by a [[temporal anomaly]]. ({{VOY|Shattered}})
+
* Chakotay used the deflector as a "[[lightning rod]]" to stop ''Voyager'' from being fractured into different time periods by a [[temporal anomaly]]. ({{VOY|Shattered}})
   
* In [[2378]], Voyager used an [[anti-tachyon pulse]] to seal a [[temporal rift]], which had been generated by Janeway's counterpart from an [[Alternate timeline|alternate]] [[2404]]. ({{VOY|Endgame}})
+
* In [[2378]], ''Voyager'' used an [[anti-tachyon pulse]] to seal a [[temporal rift]], which had been generated by Janeway's counterpart from an [[Alternate timeline|alternate]] [[2404]]. ({{VOY|Endgame}})
   
 
=== Other starships ===
 
=== Other starships ===
 
[[File:USS Odyssey critically damaged.jpg|thumb|The ''Odyssey''{{'}}s deflector destroyed]]
 
[[File:USS Odyssey critically damaged.jpg|thumb|The ''Odyssey''{{'}}s deflector destroyed]]
*A kamikaze attack on the navigational deflector of the {{USS|Odyssey}} in [[2370]] caused a chain reaction causing the ship's destruction. ({{DS9|The Jem'Hadar}})
+
*A kamikaze attack on the navigational deflector of the {{USS|Odyssey}} in [[2370]] caused a chain reaction resulting in the ship's destruction. ({{DS9|The Jem'Hadar}})
   
 
== External link ==
 
== External link ==
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[[de:Deflektorschild]]
 
[[de:Deflektorschild]]
 
[[ja:ナビゲーション・ディフレクター]]
 
[[ja:ナビゲーション・ディフレクター]]
  +
[[nl:Deflector]]
 
[[Category:Technology]]
 
[[Category:Technology]]

Revision as of 17:27, 13 January 2015

AT: "xx"

File:Refit Constitution class navigational deflector.jpg

The navigational deflector of the USS Enterprise-A

USS Enterprise (alternate universe) deflector dish

The navigational deflector of the alternate reality USS Enterprise opens

Galaxy class navigational deflector

The navigational deflector of a Galaxy-class starship

Sovereign class deflector dish

The navigational deflector on a Sovereign-class starship

The navigational deflector (also known just as the deflector, the deflector array, the deflector dish, the main deflector or the nav deflector for short) was a component of many starships, and was used to deflect space debris, asteroids, microscopic particles and other objects that might have collided with the ship. At warp speed the deflector was virtually indispensable for most starships as even the most minute particle could cause serious damage to a ship when it was traveling at superluminal velocities. (VOY: "Alliances")

Technical data

The deflector commonly took the form of a dish-shaped force beam generator containing heavy-duty subspace accelerators at the extreme forward end of the vessel's secondary hull. It performed its primary function by emitting low-power deflector shields to deflect microscopic particles and higher-powered deflector beams and/or tractor beams to deflect larger objects. (Star Trek: First Contact; VOY: "Alliances", "Shattered")

On the Constitution-class starships the navigational deflector was a combined system with the ships' main duotronic sensors. (TNG: "Datalore" computer screen; DS9: "Trials and Tribble-ations" computer screen)

According to Star Trek: The Next Generation Technical Manual (pg. 87), the long-range sensor array was a key element of the navigational deflector system as it was used to detect and track objects in the ship's flight path. The deflector beams caused a great deal of subspace distortion, so the sensor arrays were placed in a circular fashion around the deflector beam emitter array.

A deflector's energy could be extended outward to protect other ships. In 2266, the USS Enterprise extended its deflector shield around Harry Mudd's class J vessel to temporarily protect it from asteroids while its crew were transported to safety. (TOS: "Mudd's Women") The 24th century Federation starship navigational deflectors could easily deflect laser fire. (TNG: "The Outrageous Okona")

Ordinarily, Federation starships were equipped with a single external deflector dish. In the 2250s these devices were sometimes known as the ships' meteorite beam. (TOS: "The Cage") In the late 24th century, some starships were known to have more than one deflector. One example of this was the Intrepid-class, which had its main deflector located between the extreme forwards of decks 10 through 13, while the secondary deflector was located on the extreme forward of deck 6. (VOY: "Caretaker")

The deflector of the USS Enterprise-E was charged with antiprotons while the Borg were modifying it. This proved to be a potential hazard as particle weapons fire hitting the deflector could destroy much of the ship. (Star Trek: First Contact)

Components of the system

Other uses

Enterprise destroys Sphere 41

A deflector pulse

File:Deflector beam.jpg

A deflector beam

USS Enterprise-B fires resonance burst

A resonance burst

Due to its ability to project a wide variety of energies and particles, the navigational deflector was an extremely versatile piece of equipment. Many starship crews made one-time modifications to the dish to solve several problems they were facing.

Enterprise (NX-01)

In 2154, the navigational deflector of the Enterprise NX-01 was used to generate a deflector pulse which destroyed Sphere 41, thus disrupting the entire network of spheres in the Delphic Expanse. Modifications had to be made, however, to prevent the pulse from rupturing EPS conduits throughout the ship. (ENT: "Countdown", "Zero Hour")

Later that year, the NX-01's deflector was modified to emit a positron burst, which disabled Harrad-Sar's barge when it passed through the grappling line of his ship. (ENT: "Bound")

USS Enterprise (NCC-1701)

The USS Enterprise used a deflector beam to attempt to shift a large asteroid off course when it threatened the planet Amerind in 2268. The attempt failed and caused damage to the ship's power. (TOS: "The Paradise Syndrome")

USS Enterprise (NCC-1701-B)

In 2293, Captains Montgomery Scott and James T. Kirk modified the deflector of the USS Enterprise-B to produce a resonance burst in order to simulate an antimatter explosion when the ship became caught in the Nexus energy ribbon. (Star Trek Generations)

USS Enterprise (NCC-1701-D)

USS Enterprise-D navigational deflector

The USS Enterprise-D fires its deflector dish as a weapon

  • The crew of the USS Enterprise-D used the deflector to channel an extremely large amount of energy at a controlled rate - both as a weapon against a Borg cube in 2366 (TNG: "The Best of Both Worlds", "The Best of Both Worlds, Part II") and as an energy source hoping to escape a Tyken's Rift in 2367. (TNG: "Night Terrors") Although the energy beam had a greater power output than the ship's complement of weapons, using the deflector for this purpose was extremely impractical and only ever used on two occasions for three reasons:
    • Channeling such a large amount of energy through the deflector made substantial drains on the ship's power systems, notably from the warp engines. This also meant that the beam could only be fired if the ship was traveling at sublight velocities.
    • The deflector dish would burn out following the energy beam discharge, requiring extensive repairs, possibly replacement of the deflector altogether.
    • The high levels of radiation produced by the energy beam require the evacuation of the entire forward half of the secondary hull and the lower three decks of the saucer section of a Galaxy-class starship.
  • Also in 2367, the Enterprise-D's deflector was modified to amplify and reflect the subspace frequencies produced by a cosmic string fragment to change the trajectory of a group of two-dimensional beings that threatened to destroy the ship. (TNG: "The Loss")
Deflector dish firing 2368

The deflector dish fires five beams of light

  • In 2368, the deflector dish was modified to send five beams of light for exactly 8.3 seconds into the clouded atmosphere of Penthara IV, together with a modified phaser blast. This ionized dust particles in the planet's atmosphere, which were converted into high-energy plasma. This plasma was then absorbed by the deflector shields of the Enterprise-D and redirected into space. Warp power had to be rerouted to the deflector dish to create enough energy for the massive undertaking. (TNG: "A Matter of Time")
  • In three different alternate timelines, the deflector was modified to emit an inverse tachyon pulse to scan beyond the subspace barrier, this being done to ascertain the workings of an anti-time eruption. The convergence of the three tachyon pulse at the same point in space in multiple timeframes caused a paradox which created the eruption in the first instance. (TNG: "All Good Things...")

USS Enterprise (NCC-1701-E)

Sovereign class deflector dish, damaged

The deflector on the USS Enterprise-E after being damaged by the Borg

AE-35 is a reference to 2001: A Space Odyssey, where the AE-35 unit controls the communication dish's orientation for the Discovery.

USS Defiant (NX-74205)

Focal array

The Defiant's deflectors focal array is utilized to generate a subspace tensor matrix

  • During 2372 the deflector of the Defiant was modified in just ten minutes to perform as a single-shot phaser emitter when the ship was under attack from a Jem'Hadar fighter in the atmosphere of a class J gas giant. Only one shot could be fired with this makeshift phaser emitter as it overloaded with the first shot. (DS9: "Starship Down")

USS Voyager (NCC-74656)

USS Voyager emitting graviton beam

The USS Voyager emits a resonant graviton beam

File:Antitachyon.jpg

Voyager emits an anti-tachyon pulse to seal a temporal rift

  • During the same year, Voyager's deflector was used to fire dozens of radion beams to conceal a transporter signal into one of the beams. (VOY: "Resistance")
  • During the same year in an alternate timeline, a badly damaged Voyager lost its navigational deflector shields along with many other systems during the Year of Hell. Encountering a micro-meteoroid shower, they were unprotected without their deflector and the ship began suffering even more damage. Captain Janeway restored the shields, although she was burned due to a massive fire in the deflector room. (VOY: "Year of Hell, Part II")
  • The Borg "children" used a tractor beam in an attempt to steal Voyager's main deflector, to use it as an interplexing beacon for contacting the Borg. (VOY: "Collective")

Other starships

USS Odyssey critically damaged

The Odyssey's deflector destroyed

  • A kamikaze attack on the navigational deflector of the USS Odyssey in 2370 caused a chain reaction resulting in the ship's destruction. (DS9: "The Jem'Hadar")

External link

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