Flying Glitch Aeronautics (Create Aeronautics 1.0.3)
I Found this yesterday showed it to streamer on qsmp2 (graf) and then later I upgraded it to what it is now.
Generally you need to glue everything with honey glue for it to work then you use physics assembler and put water just like in the video.
You only fly on this while standing on other contraption then you can use the iron handle (shift + right-click) to fly (other contraption can be anything: trapdoor, cauldron, or what I used). I used water to block the contraption because it was flying away when it the whole contraption was falling down.
And I can't report this glitch to devs because I forgor my github acc password but this is so fun it reminds me of bhops in valve games.
For some reason it also duplicates banners when physics assembler is on/off (without water).
glitch founder: ZamekDod