Hi Paul,
Ah the trouble with 1 atm, big and heavy by necessity. What I am trying to accomplish is a surface yacht capable of short submersions. Here is a link to something in epoxy-ply of a similiar size and displacement. http://devlinboat.com/dccz35.htm
Still though, the 10,000 lbs may be a bit wishful considering her surfaced draft at D.W.L. may be something around five feet, all this to be yet worked out on paper, at this point it's still in my head.
This is truly the initial conception phase as I only very recently began to suspect the potential viability of the concept. The air requirements have the potential to be a deal killer, again I have to work the numbers but at this stage, I don't know the facts yet.
One option is to leave the bottom clean (no rivets) for bottom paint, relocate the shaft as in my previous post, and make her ride high in the water, then sink her view ports below water with water ballast. You still need to blow the ballast so why not try to go all the way is what I am looking at.
Joe
From: Paul Kreemer <paulkreemer@gmail.com>
Reply-To: personal_submersibles@psubs.org
To: personal_submersibles@psubs.org
Subject: Re: [PSUBS-MAILIST] Re: Nemo's Nautilus Concept Plan
Date: Fri, 28 Oct 2005 11:10:27 -0700
Great description of your design. You mention a surface displacement of 10,000lb. I wonder about submerged displacement, how low you can get it. Would you have floodable bow and stern sections to leave a smaller dry cabin?
I found that the 1896 Simon Lake Argonaut is your same length overall at 36' and it has a displacement of 59 tons. The Argonaut was mostly a 1atm vessel, shallow diving and kind of a mobile dive chamber with wheels and a prop. This isn't a great match for comparison with your design but I thought the overall size and displacement were interesting.
http://www.geocities.com/gwmccue/Competition/Argonaut.html
Paul