> I wonder if we might profitably consider a Chariot that
> cruises along the surface, dipping under for a minute or
> so? No scuba would be required. Conceptually, it's a
> PWC that submerges.
I think we've discussed this before, in a general way. It's an idea I
have in the back of my mind all the time. Something positively-buoyant,
with serious thrust and good-sized dive planes. Since most water around
here isn't all that clear anyway, it would be a way to get the sneaky,
unexpected aspect of a submersible with a certain amount less
complexity. Also lighter, streamlined, quick.