Re: [PSUBS-MAILIST] OSS

[Dale Raby <publisher@thegreenbayweb.com>]

I think I read somewhere that the longer a boat is, the faster it can be 
driven... apparently there is some sort of theoretical barrier that prevents 
a surface ship from exceeding a certain speed related to wave dynamics and 
how its length fits into the equation or something.  This is why some 
submarines are capable of faster speeds underwater than when running on the 
surface.

Of course, I am not an engineer by any stretch, so this may be just so much 
junk science.

On Wednesday 15 January 2003 05:56 am, you wrote:

> Interesting how length helps a boat.  I forget where I saw this, but it
> seems that a boat that is longer can out perform a boat that is wider.
> So I presume it's the same with subs.  I figure that stability is in the
> length.
> Carl
>
> Nero Wolfe wrote:
> > I REALLY like this idea....  but that's kinda built into the concept of a
> > tubular boat... the usnavy has done it on their boats on several
> > occations.
> >
> > *********** REPLY SEPARATOR  ***********
> >
> > On 1/13/2003 at 1:41 PM Warrend Greenway wrote:
> > >I was thinking modularity on length. What do you think Doc? A PSUB that
> > >uses a
> > >simple repeating pattern over length? Cut and paste to length to suite
> > > your needs and budget? The only real reason I suggest this is that you
> > > could have
> > >battery and ballast pods in banks to get variations on dive time by
> > >increasing
> > >length and adding the next series of pods. The shortest length would be,
> > >maybe,
> > >4 meters and that would give you on set of battery pods, air, and
> > > ballast tanks.
> > >Is this the kind of modularity you were thinking of? I also like your
> > > dive time
> > >of 6hrs, ours could be 1.5 units long? Hhmmm.
> > >
> > >Warren.