On Sun, 19 Apr 2009 15:58:09 -0400, "Wilbur Hubbard"
wrote:

"Capt.Bill" wrote in message
...
http://www.windvinder.com/index.php?id=14&L=1


Nobody's seen it because it doesn't exist. It is a pipe dream. Notice on the
site there are no photographs of it in action. Just drawings. It can't work.
You cannot harness enough wind power with a windmill on a boat to make the
entire untethered vessel proceed directly upwind. It isn't going to happen
because it defies the laws of physics.

Wilbur Hubbard

The usual windmills around here put out 2000 hp.

Casady