[PSUBS-MAILIST] Re: Hull construction concept: pipes

["Michael B. Holt" <mholt@richmond.edu>]

MerlinSub@t-online.de wrote:

Good morning, Carsten.  This would be a fine day to go out for 
cruise on the surface.

> > Internal bulkheads, or the end caps?
> 
> The Endcaps, seems also the basement of the sail has a conventional
> one shell system. Unfortunatly the background of my photocopy was
> black - the quality of the copy is extrem low and dark - no way
> to copy them again or to scan them.

OK.  Thanks.
 
> > Any other comment about "ferro-fiberglass" hulls?  I'd think the
> > metal would add some flex and some resistance to cracking.
> > There's a German boat from the 60s that was built just that
> > way; it was good to about 150 feet, as I recall.
> >
> Never hered about this sub, I know only ferro-zement (concrete)
> for surface ships. Which name/number has the sub ?

As far as I know, there was one German recreation boat that 
was built that way, back in the mid 1960s.  I've been 
wondering how practical it might be for my project(s).

> The "Tigerhai" (Andre's Boat) is a fiberglasboat with
> metal rings inside the fiberglas.

That was it!  There was another boat, a smaller one,
that was demonstrated at the Chicago Boat Show in 1964.
My first exposure to the idea was from an article about
the little sub at Chicago.



Mike