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

[MerlinSub@t-online.de (Carsten Standfuß)]

Hi Mike ..

"Michael B. Holt" schrieb:
> 

> > For a psuber big working tools are not a real problem.
> > Purchase the unit you need second hand - and after finish
> > your sub - refit them and sold them with a profit..
> 
> I don't really have a large, secure place to build right now.
> This is a logical idea, and the best one, but it would not
> be my idea because I have no place at this time.  That's
> exactly what I'd do, had I thought of it.

For a psuber a large, secure place to build the sub
are not a real problem. Purchase the place/hangar you 
need second hand - and after finish your sub - refit 
the place/hangar and sold them with a profit.. :-) 

> > > I wondered about that.  It seemed to me that it might be a
> > > good idea to place all the penetrators at one end.  Of
> > > course, that has drawbacks.
> >
> > Thats exact what they did - both bulkheads are conventional.
> 
> 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.

> 
> 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 ? 

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

Carsten

> Mike