I laminated the inside of the float half today. Managed to pull 22.5 inches of mercury using the foam itself as one side of the vacuum membrane. I've added a couple pics. It did some maths and that is something like 53 tons of pressure over the surface on the hull. Nothing like a good vacuum.
[Linked Image]

Last edited by phill; 03/28/11 06:43 AM.
I know that the voices in my head aint real,
but they have some pretty good ideas.
There is no such thing as a quick fix and I've never had free lunch!