A bulkhead was a wall-like partition in a starship or space station used to aid structural integrity.
Captain Jonathan Archer identified a part of a building of the Terra Nova colony as a bulkhead of the SS Conestoga. The colony ship was dismantled and its parts were used to build the colony. This specific bulkhead was from the ship's B deck, section 14. (ENT: "Terra Nova")
Bulkheads were numbered and divided a ship into separate parts to help keep its rigidity. Bulkheads in Starfleet vessels built in the 24th century, specifically of the Galaxy-class and Intrepid-class, were composed of tritanium alloy and could be reinforced with shields to enhance the ship's overall structural integrity. (TNG: "Where Silence Has Lease"; VOY: "Repentance")
Bulkhead 342 was located within the forward part of the saucer section of a Galaxy-class starship. When Doctor Beverly Crusher was trapped within a static warp bubble in 2367, her thoughts created a duplicate of the USS Enterprise-D that gradually disappeared as the bubble collapsed. The initial parts of the ship to vanish were on decks 5 through 14, forward of bulkhead 342. (TNG: "Remember Me")
In case of structural failure, a bulkhead could be beamed away and temporarily replaced by a force field. (TNG: "Schisms")
In 2369, the bulkheads aboard space station Deep Space 9 were broken by several hull breaches caused by graviton pulses of the embryonic lifeform. (DS9: "Q-Less")
While searching the debris of destroyed Vor'cha-class attack cruiser IKS Toh'Kaht, Jadzia Dax and Miles O'Brien found pieces of the ship's secondary hull and bulkheads in the debris. (DS9: "Dramatis Personae")
Jadzia Dax claimed she could hear Kor snoring through the bulkheads of the USS Rio Grande in 2372. (DS9: "The Sword of Kahless")
Elim Garak had "a sudden and somewhat violent encounter with a bulkhead" when the USS Defiant was attacked by the Dominion early in the Dominion War. (DS9: "A Time to Stand")
Members of Species 8472 were immensely strong, able to dismember humanoids and rip through bulkheads with ease. (VOY: "Prey")
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- TOS:
- TNG:
- "Heart of Glory"
- "Remember Me"
- "Disaster"
- "Hero Worship"
- "Power Play"
- "The Next Phase"
- "Schisms"
- "Rascals"
- "The Quality of Life"
- "Aquiel"
- "Starship Mine"
- "Interface"
- "The Pegasus"
- "Eye of the Beholder"
- "Genesis"
- Star Trek films:
- DS9: