Hi all,
decades ago, in ground school Linton, they told us, you need about 100 hp per t fixed wing, to have some decent flying with it - and about 400 hp per t for a helicopter.
Both will fly with less power - but not with decent characteristics....
So a hoverboard should be possible with about 40 to 50 hp...
Little hovercrafts for 2 people have a lifting engine with about 40 hp
Hovercraft Luftkissenboot | eBay