Airship I built a while ago and keep tweaking here and there.
Basic cargo transport for your merchants. Complete with crew quarters, galley, and captain's and first mate's quarters.
In my worlds, since glowstone tends to be found on the roof of the nether, and it glows, I sez it floats. Thorefore, the technology involved with airships is a simple matter of building glowstone pontoons to create enough lift, or building the glowstone into the hull of the ship (like the battleships in the background).
I use Conquest, specifically for 1.11 although I don't believe 1.12 would change much. Haven't tried though.
You'll find lime wool placed liberally throughout the schematic that is only used for Schematica printing purposes and should be removed when printing is completed.