My hovercraft was way to heavy because the bottom disc was to big and to heavy. It was also made of wood.

Ray, I finished, so you don't have to add the holes in the CD and stuff.

For my hover craft, i made 4 holes on one side and 2 holes on the other, i think that the hovercraft will fly to the side of 4 holes. But now, I don't really think that it matters.