No propellers needed actually. I actually just finished rebuilding the lower right room(s) by putting a Quantum Generator in the first room, Liquid Aether vat in the second room, and a Liquid Aether layer around the ship (It flies through Quantum manipulation of Liquid Aether). Also, see "WIP" tag above...
Looks nice! And dude, I never realized that foreground wall paired so nicely with the background wall, might have to try that for my next lab. One thing I will say: I'm not sure I would have used only 1 block thick for the outer hull. If you look at Avian Airships, their hulls are at least 2-3 blocks thick. It looks... somewhat flimsy if it's only 1 block thick, esp at the places where you're making slopes, where there's nothing but a corner between your feet and the air below lol. EDIT: Even if you used some background blocks to give it the illusion that it is thicker than it really is, it'd still help.
