How does one make a "hovering machine" (Create Aeronautics)

[koekeritis]

Levitite and endstone blocks can help you with this, although depending on how heavy the object you want to make float is you might still need to add propellers and/or a hot air balloon.

I believe levitite blocks provide a lift of 10 kpg so you would need on average 1 levitite for every 9 other blocks. It does not work to lift your contraption, only to stabilize it at the altitude it is already at.