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Warp core ejection system

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Multiple realities
(covers information from several alternate timelines)
USS Voyager warp core ejection

USS Voyager ejecting the warp core

USS Enterprise-E warp core ejection

The USS Enterprise-E's ejected warp core

The warp core ejection system was a system aboard warp-capable vessels designed to eject the warp core in the event of a warp core breach in order to prevent the destruction of the ship.

Activation of the ejection system typically required security clearance by the chief engineer or a senior officer. This tactic is generally considered to be a last ditch effort to save a ship during a crisis situation and is often unreliable at best.

In the alternate reality of 2258, the USS Enterprise ejected and detonated several of its warp cores in order to boost the ship out of the gravitational pull of a black hole created with red matter. (Star Trek)

In early 2372, the USS Defiant's ejection system failed after a power surge triggered a core breach. The excess power was eventually drained via the deflector array, averting the breach. (DS9: "The Visitor")

The USS Enterprise-E ejected its warp core in 2375 to seal a subspace tear created by a isolytic burst. (Star Trek: Insurrection)

USS Voyager's warp core was ejected on several occasions:

In 2377, the Delta Flyer II ejected its core to avert an antimatter explosion from destroying the Antarian Trans-stellar Rally. (VOY: "Drive")


Activation of the ejection system usually involved a voice command to the computer, however the core could also be ejected through an engineering station. (VOY: "Cathexis")

The voice command syntax for ejecting the warp core had a standard structure and required an authorization code. (VOY: "Day of Honor", "Renaissance Man", "Course: Oblivion")

"Computer, prepare to eject the warp core, authorization {authorization code, e.g. "Torres omega 539"})."

The computer would respond by saying:

"Warp ejection systems enabled."

Then a final command would be necessary to eject the core.

"Computer, eject the warp core."

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