Re: [PSUBS-MAILIST] dual hull

["Dan H." <JMachine@adelphia.net>]

Well put Greg!
  
I'm heading to the shop and add a few parts to something constructive.   
Chat lines aren't my thing.

Shoving off, Dan H.

----- Original Message ----- 
From: "Gregory Snyder" <gsnyder@mn.rr.com>
To: <personal_submersibles@psubs.org>
Sent: Friday, January 31, 2003 12:25 AM
Subject: RE: [PSUBS-MAILIST] dual hull


> PHIL!
> Welcome back - 
> For a while we were actually talking about submarines!
> Warren got a bug to build a group sub project again and even began to
> organize the group.  Then we got distracted, pissed some kid with a
> great "secret" idea off - argued a bit with each other and turned the
> page into a 
> Match making hotline.
> 
> So, I guess it's about the same as when you last checked in.
> 
> If anyone is still talking about subs, I'd favor emulating (copying)
> something like the delta sub that Ian just sent the link too.
> Thanks Ian
> Sincerely,
> Greg Snyder
> 
> -----Original Message-----
> From: owner-personal_submersibles@psubs.org
> [mailto:owner-personal_submersibles@psubs.org] On Behalf Of Phil Nuytten
> Sent: Thursday, January 30, 2003 7:52 PM
> To: INTERNET:personal_submersibles@psubs.org
> Subject: [PSUBS-MAILIST] dual hull
> 
> Re: pressure reduction by hull 'layering' 
>         Jes' amblin' on by and noticed the dual hull thread - Peculiar
> how
> this comes up again and again! So . .  once again, class . . .add all
> the
> layers together to form one unit thickness hull with an inside diameter
> the
> same as the inside diameter of your previous 'smallest sphere' - then
> add
> oil or water or whatever medium you were going to put between the hull
> layers,( if air, then you wil have to add a comp system or  make the
> hull
> the previous outside diameter or add air  in the form of microspheres in
> a
> cohesive matrix, and so on . .) until the outside diameter/displacement
> equals that of your previous 'largest hull'  - that's the best you can
> do
> with a multi hull if you are able to achieve a perfect load transfer
> between the hulls. So why bother? Under the most ideal conditions, there
> is
> zero advantage - under less than ideal conditions, the layered hull will
> not be as rigid ( read 'strong') as a simple mono hull with a thickness
> equal to the combined thicknesses of the hull layers. No free lunch .
> .which I, for one, say is Suction City - but that's the way she be. By
> the
> way, Happy New Year, y'all - and specially to the good Cap'n of Vulcania
> -
> very cool 'Nemosuit', Pat!
> Phil Nuytten
> 
>