I went back again and added an interior to this, and in the middle of doing that, about 1/4 of the ship vanished, and even after I 'fixed' things it still stayed a bit flaky.
I guess I should say what this is. It's a (non-Starfleet) medical support ship for Federation colonies from a time before the Constitution class was commissioned. It's a slow, tough ship design that was used until there was nothing left to use. This version has undergone a refit since she was commissioned.
It's named after one of the discoverers of the nature of DNA that was denied credit for that and other of her discoveries because she was a woman.
Thanks, all.
I think I'm done. It's hard to tell though. My eyes are watering something fierce, and it's difficult to see. Oh, I've named this 'Rettung'.