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Deflector shield

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Shields Marvel Comics

The Enterprise deflector shields take a hit from the Klingons.

The deflector shields (or more commonly referred to simply as shields) are an electromagnetic force field that can be projected around a starship, starbase, or planet by technological means and act as the first form of defense against enemies or natural hazards, using deflection to protect said body from various forms of radiation and matter collisions.

DescriptionEdit

Most starships are fitted with deflector shields, often projected from a deflector dish, to protect them from particle impacts which, particularly at high velocities, could cause huge amounts of damage. While basic deflectors and deflector beams could provide minimal protection from weapons fire and basic mishaps, the majority of advanced starships were also fitted with more powerful shielding which could be activated in tactical situations. However, these shields were sufficiently powerful that they also blocked out transporter beams. (TNG movie: Star Trek: First Contact, et al.)

Shields could be configured in two forms; ellipsoid form shielding, common in Federation starships in the 24th century, which projected a shield bubble around a starship. Or contour-conforming shielding which was projected much closer to the ships hull providing more specifically localized protection. Some shielding systems also allowed shielding over specific areas of a ship to be activated or deactivated to provide protection for a specific area only and presumably reduce power consumption not protecting the entire hull. (TNG movie: Star Trek: First Contact, et al.)

Horta were seemingly invulnerable to even very powerful shields, being capable of passing straight through them with very little effort. (DS9 novel: Devil in the Sky)

While conducting operations in the Badlands in the early 2370s, the Maquis discovered a way to apply regenerative tuning techniques in order to keep their shields operative in the extreme magnetic and radiation flux of the region. In early 2372, the USS Enterprise-E applied some of these techniques to their shields while inside the Pantera Nebula. (TNG eBook: A Sea of Troubles)

In addition to standard deflectors, there a number of other shielding technologies that were developed including:


penetrate with conventional weaponry. (VOY: "Tsunkatse").

  • Regenetative sheilding  was used on the highly advanced federation tactical Cruiser USS Prometheus. It utilised multi-layered/tier sheilding that enabled rapid recharging(regeneration) of resting layers, so if the initial layer taking the brunt of an attack gets depleted another fully charged layer is ready to take over while the initial one recovers, etc.
  • Unimatrix sheilding used on the Delta flyer, was a Borg influenced technology, that utilised Borg algorithms to help optimise sheild frequency against incoming attacks. (Although not granting the same level of adaptive frequency invulnerability as true Borg sheilds, it did however impressively enhance conventional sheild defensive strength).

NOTE: Despite its name - the Multi-adaptive shielding, developed by Erin and Magnus Hansen, was a steath system specifically designed and used to mask/sheild a vessel from Borg sensors. (and not a conventional defense sheild) (VOY episode: "Dark Frontier")

FrequenciesEdit

257.4 was the shield frequency of the USS Enterprise-D in 2371. The Klingon Duras sisters had previously captured Geordi La Forge and while under their captivity had Tolian Soran (a scientist they were working with) modify La Forge's VISOR to transmit a video stream to them. When Geordi returned to the ship, the sisters were able to expose the frequency and fire through the Enterprise's shield. (TNG movie & novelization: Generations)

Earth and Federation shieldsEdit

By the 22nd century, humans had only developed basic deflector dish technology, which allowed them to operate more safely at warp speeds, but had to resort to polarized hull plating in tactical situations. Many species in the Alpha and Beta Quadrants had developed more advanced shielding technology by the 2150s, these included the Andorians and the Klingons. (ENT episodes: "Sleeping Dogs", "Proving Ground")

Earth and Federation shield typesEdit

FSB-type 
Scorpio-class class II corvette
FSC-type 
FSD-type 
Makin-class mark II class VII assault shipContinent-class class IX assault ship
FSL-type 
Andor-class mark II class IX cruiser
FSS-type 
Excelsior-class class XIII-XIV battleship

Klingon shield typesEdit

KSC-type 
T-3 D'aka-class class VI assault ship
KSG-type 
T-5B Mas To Gal-class class VII assault ship
KSH-type 
L-13A K'el Ri'anda-class class IX battleship
KSJ-type 
T-5A Mas To Gal-class class VII assault ship
KSL-type 
L-13C K'el Ri'anda-class class X battleship
KSN-type 
T-12 Na Ra'den-class class IX assault ship
KSP-type 
L-13D K'el Ri'anda-class class XI battleship

AppendicesEdit

ConnectionsEdit

External linksEdit

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