Doug,
My interpretation of Stan's statement was that it was an argument "against" propane tank designs, the 15mph car as Carsten put it. But as I did not author the statement, I can not defend that interpretation. I did find it to be quite both basic and comprehensive at the same time.
Joe P
From: sealordone@aol.com
Reply-To: personal_submersibles@psubs.org
To: personal_submersibles@psubs.org
Subject: Re: [PSUBS-MAILIST] Choosing sub design (Was: Carsten in Wired Magazine)
Date: Mon, 26 Dec 2005 23:41:33 -0500
Shipmates,With all due respects, I am thinking "no". To me, there is a very strong "safety argument" to be made for rolling your own. I know of no "safety argument" to be made in defense of using a propane tank. For me, I admit my bias, the selection of a propane tank is in every case, and without exception, evidence that the designer lacks the knowledge base to build a safe submarine. To me it is all very back and white on this one issue.Can someone out there provide the "safety argument" for propane? My mind is open, I have simply never, ever heard the argument. Is there one? Please bring it forth. Again, my mind is open.Doug FarrowSeaLordOne
-----Original Message-----
From: Joseph Perkel <joeperkel@hotmail.com>
To: personal_submersibles@psubs.org
Sent: Mon, 26 Dec 2005 17:31:31 +0000
Subject: RE: [PSUBS-MAILIST] Choosing sub design (Was: Carsten in Wired Magazine)
************************************************************************ ************************************************************************ ************************************************************************ The personal submersibles mailing list complies with the US Federal CAN-SPAM Act of 2003. Your email address appears in our database because either you, or someone you know, requested you receive messages from our organization. If you want to be removed from this mailing list simply click on the link below or send a blank email message to: removeme-personal_submersibles@psubs.org Removal of your email address from this mailing list occurs by an automated process and should be complete within five minutes of our server receiving your request. PSUBS.ORG PO Box 311 Weare, NH 03281 603-529-1100 ************************************************************************ ****************************************! ******************************** ************************************************************************I think what Stan just said should be added to the PSUBS ethos for new arrivals to this game.Eloquent simplicity, good job!Joe P
From: sfreihof@aol.com
Reply-To: personal_submersibles@psubs.org
To: personal_submersibles@psubs.org
Subject: [PSUBS-MAILIST] Choosing sub design (Was: Carsten in Wired Magazine)
Date: Mon, 26 Dec 2005 10:14:09 -0500
Welcome Kris;First, decide what design you want to use. You can choose from a 1 atm sub, to an ambient sub wet or dry. It depends on your needs, capabilities, and skills.If you choose the 1 atm design, most on this list would suggest you "roll your own" hull, but propane tank based designs have been done successfully if you are aware of the drawbacks. The consensus is that it isn't worth the savings because it won't save you much and entails too many uncertainties.Ambient subs are easier to build but have some operational limitations and risks. You need to be a qualified and competent scuba diver first to understand the drawbacks of ambient subs.Again, it all depends on your needs, capabilities and skills. Everything is a trade-off.Stan
-----Original Message-----
From: Kris <kc0opd@gmail.com>
To: personal_submersibles@psubs.org
Sent: Sun, 25 Dec 2005 15:00:20 -0600
Subject: Re: [PSUBS-MAILIST] Carsten in Wired MagazineHello! I'm new to the area of personal subs, and I'm looking for some information. I found the PSUBS web site, which gave us a great start into our sub design. My father and I are attempting to build a sub for use in a freshwater lake, with a maximum depth of no more than 50 feet. At the present time, our biggest problem is finding a suitable tank for the hull. We have considered a used LP tank, but there is the concern about residual LP. What has everyone else done, or what can you recommend? Thanks in advance for your help. Kris