Until now, it was simply not possible to make, but thanks the the two newest features, it's now easier than ever to make! Here's the step-by-step instruction. If you want an easy setup, follow the instructions tightly.

First, from the starter cube, add four weight blocks in front and back, with their mass set to 0.20x. Add a brace under them starting from the third one front to the third one back.



Add two spinner blocks, under the front tip and one in the back tip. they should be under the fourth weight block of the two branches. Add propeller blades all around each spinner block. Flip the back spinner's direction and the front spinner's propeller blades.




Add two wooden blocks (four small wooden blocks probably work too) on the left and right side of the starter block, add a brace under them going from one side to another, one from block one to four on the sides of the stuts and one on top going from the third block left to the third block right.

Add a flying block all around the tips of the wooden "arms", which should amount to four per sides. Key-bind the front ones to "i", the back ones to "k", the upper ones to "o" and the underside ones to "u".

Add wing panels on the left and right side of the tip of the weight block arms. It should amount to two on the left, two on the right, covering the extremities. Add a brace linking the front and back of the left side, and repeat on the right side.


Add flying blocks on the TIP of the wing panels. Now key-bind the back-left & front-right flying blocks to "l", and the front-left & back-right flying blocks to "j". Doing this in the right order is VERY important as it will allow stable turning. Set their speed to 0.50x each.

Nearly done!: Add a balloon on top of each wing panels, on the starter block, on the second front & back weight block and one the second left & right wooden block.


Now, all you have to do is to adjust the spinning block's spin speed and you have yourself a IKJL-controlled hovercraft! I've found 0.84x rotation speed on each spinning block to be the best for perfect hovering, but it could be different if you did your craft differently.

Have fun, folks. Sorry for the lack of screenshots, steam won't let me pick any ;_;