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Memory Alpha

The term hull refers to the body or frame of a ship or starship. Warp-worthy vessels must have a hull able to withstand extreme accelerations. The hull of a Starfleet vessel was usually separated into two parts: the primary and secondary hulls. Hull plating was an external armor component of a starship's or shuttle's hull. Hull resiliency was a measurement of how well a hull could withstand damage.

The primary and secondary hulls of Constitution-class, Galaxy-class, and Oberth-class starships further consisted of an "outer" and "inner" hull. (TOS: "The Doomsday Machine"; TNG: "The Best of Both Worlds, Part II", "Hero Worship")

The term "inner hull" was additionally used in the final draft script of ENT: "Impulse", to describe the interior of the Vulcan ship Seleya.

Borg cubes utilized technology that automatically regenerated their hull when damaged. (TNG: "Q Who"; PIC: "Broken Pieces") Like Federation starships, they had an "inner hull" and an "outer hull" (or "outer skin"). (Star Trek: First Contact)

In 2151, Doctor Phlox was telling Miss Malvin's class about locating a colony of spores on the hull of a craft, but was interrupted by Jonathan Archer before he could finish. (ENT: "Breaking the Ice")

A Kyrian reconstruction of the USS Voyager as the warship Voyager in the holoprogram The Voyager Encounter had a triple-armored hull, but this was based on a partial, badly corroded schematic found in the Cyrik Ocean on the Kyrian and Vaskan homeworld, which accounted for inaccurate details. (VOY: "Living Witness")

Hull materials

Hull enhancements

See also


Background information

The basics of these incidents have been referenced in several episodes. More detailed explanations given by the writing and technical staff when creating the show are contained in the Star Trek: The Next Generation Technical Manual and the Star Trek: Deep Space Nine Technical Manual.

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