The restart cycle was a process involved in restarting the engine of Constitution-class starships.

In 2269, the restart cycle could not be engaged on the USS Enterprise following a power loss upon the beam down of James T. Kirk and Spock to the planet Excalbia. Upon their return, it was functional once more, and the ship would be on warp power within thirty minutes. (TOS: "The Savage Curtain")

See also

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