Actually, if you go with sail or electric power, the vessel moves much more
quietly and that prevents the waking up of the sea dragons. Which of
course, means you can use non-fireproof materials that cost less, like wood
for example.

Brian

--
http://www.advantagecomposites.com/tongass -- My 22' Tolman Skiff project
http://www.advantagecomposites.com/catalog -- Discounted System Three
Resins products


..
"Stephen Baker" wrote in message
...
Carl Dau trolls:

Anyone experienced with tungsten-boats?

I actually started pricing up a tungsten bulb for a boat. About 9,000 lbs.
NOBODY had that much lying around, and by the time I finished calling
round all
the suppliers, the price had nearly doubled. My theory was that they were
all
calling each other looking for more, nad the old "supply and demand" thing
kicked in.
Believe me, we eventually built the whole boat, with conventional ballast,
for
half of what the bulb would have cost.

The only way to go with shaping would have been to make sintered disks and
bolt
them together. This may not be so easy for a hull, and the weight (50%
MORE
than lead by volume) makes it unacceptable for most uses.

Good troll, though.... ;-P

Steve