"The ship that has been brought into your vicinity, for the purposes of briefing you, is approximately five to seven thousand of your feet long, approximately one-tenth of that distance in diameter. It is cylindrical, and a tube within a tube, within a tube. Thirty tubes altogether, thereby giving you a sixty-deck cross-section.
The center of the cylinder, the central core of the vessel itself, which perhaps you can say, to some degree, will contain, for lack of better terminology, the power unit, will be up for all decks. So, therefore, the concave surface of the cylinder will be, colloquially speaking, the floor.
At both ends are what you would label, perhaps, ‘the bridge control center’, whatever you wish, as well as ‘center region’ itself."
Excerpt from "There's No Place Like Home"
Oh I loved the party in Solar Wind 😉🤗😍