R. Star wrote:
Then why did Chakotay have 40 or so people crammed into that one little raider?
I think it was supposed to be "relatively" big in Caretaker, they seemed to deliberately keep it vague in order to invent Maquis as the series went along.
Trek ships are always excessively roomy, even at 160m the Defiant is significantly larger than any modern day submarine, and has a small crew of 50-or-so. They would be quite comfortable!
Of course this pales in comparison with the Ent-D, even if you swallow the "35% empty" figure from the tech manual, with only 1000 crew on such a massive ship, you could walk around some parts of the ship all day and not see anyone!