Star Trek Expanded Universe
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USS Ark Royal was a Titan-class heavy carrier of the early 23rd century. (Hobbyist's Guide to the UFP Starfleet and Its History, Part 1a)

Ark Royal and her sister ship USS Hamilton were brought out of mothballs in 2285 to prepare for Starfleet Marine maneuvers against Klingon forces during a period of heightened tensions.

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