@Arrowheadlock All have been updated to have the new props, more consistent AI & resource settings, and miscellaneous other improvements.

All of your Creations are beautiful! Keep it up!

I am definitely considering it, but that would be a lot of hours of work so I can't promise it'll happen anytime soon. The old props are still usable so the airships work fine, you just can't change the props.

I'm not sure I'll ever make a refinery, though that's something that can be added onto any fortress easily enough. I haven't thought about purely defensive fortress-like craft, so that's a cool idea. I do need to build a capital (the airborne city of Rejal Katok) but that would be a huge build so no guarantees it'll happen soon.

Any chance you're considering going back and updating all of your past ships with the new propellers as well? Seem to have a full campaign fleet only missing a refinery and possibly a defensive fortress

Quite an attractive vessel!