I love the Enterprise. I memorized all the Matt Jefferies drawings in TMOST and all the Franz Joseph blueprints, including the dimensions. I built the AMT kit twice. Not unusual for a fan in the 1970s. But if TOS were going back to the drawing board, there are a couple of things I'd change. 1) The captain's quarters should be on the bridge deck, and preferably just a few steps away. Also helpful: a ward room or dorm room where other senior officers could rest during a prolonged crisis, but still be quite near the bridge. In any case, whether you think Kirk's quarters are on Deck 12 ("Mudd's Women") or Deck 5, his bed is too far from the bridge in an emergency. 2) The horizontal turbo shafts have got to go. They destroy a deck plan. In some places on board, instead of walking five steps to get from room A to room B, you'd have to walk 200 feet to the end of a horizontal shaft, go around it, and then walk 200 feet back to where room B is. It's crazy. A horizontal shaft blocks off the whole deck, to say nothing of the floor space it consumes. It's like a very long wall, ten feet thick, with no doors. Having an elevator go sideways must have seemed like a cool science fiction idea, but it's impractical. As an alternative, if the ship is so big that you can't walk it, you could put in a moving walkway like they have in large airports. This conveyor belt for crewmen should be something you could step across laterally to get from point A to point B on the other side of it. Even better: where the horizontal shaft would go, just have an open, zero-G passageway that people can fly through like real astronauts on the ISS. And then: do you really need elevator cars in the vertical shafts? Just leave them wide open, with zero-G's as well. So... what would you change in or about the ship to make it a better design?