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Re: [PSUBS-MAILIST] Surface Support Tug

Thanks Brent,
It would seem that I cannot export polygon meshes to IGES format. Specify another format and I will send you the file.
""I was wondering if the four high pressure storage tanks attached just above your battery pods could be designed to fit inside of the saddle tanks?""
.......I have thought of this a number of times for the very reasons you mention. The trouble that I run into, is that a few inches of extra width, translates to tremendous volumes for those tanks. If you blow this at or near the surface...ok...but when you start to want to try and comply with ABS standards for hp air reserve at operating depth, you run into a math problem.
You are very correct, this would tow like a sea anchor but, the tug won't care much, hull speed is 6.29 kts anyway, she'll dig in (the tug) and push a wall of water out front like her larger cousins. Submerged, the drag won't be an issue but, entanglement could be.
However, access to these as they are, would make up for the above detriments when replacing cylinders with a snorkel and fins offshore.
As for the diesel electric motor room ala say.... Kraka......that is a dream scenario but....(me) got a wife to answer to! :) 


Joe




From: "Brent Hartwig" <brenthartwig@hotmail.com>
Reply-To: personal_submersibles@psubs.org
To: personal_submersibles@psubs.org
Subject: Re: [PSUBS-MAILIST] Surface Support Tug
Date: Fri, 19 Jan 2007 13:15:16 -0800
Beautiful CAD work Joe. I really like the detail you put into the MSV Alvin Jr. I'm partial to exploded views of models and transparent parts myself. Is it possible to get a IGES file from you on the articulating human form you used in the sub model ?? I was wondering if the four high pressure storage tanks attached just above your battery pods could be designed to fit inside of the saddle tanks? This would do at least two things. One you'd have a little more submerged stability, since those tanks will be empty of fluid at all times no matter wether they are fully charged with air or O2 or not. Second and more importantly your sub will have less hydrostatic drag for towing with a boat or just under it's own power. Your design could also be stretched out a few feet to allow for a closed off area with noise canceling foam for a diesel generator and/or more passanger space. Anyways great CAD model and thanks for sharing it with us. I like to see sub designs with good freeboard standing area. 

Sincerely
Brent Hartwig






From:  "Paul Kreemer" <paulkreemer@gmail.com>
Reply-To:  personal_submersibles@psubs.org
To:  personal_submersibles@psubs.org
Subject:  Re: [PSUBS-MAILIST] Surface Support Tug
Date:  Fri, 19 Jan 2007 09:48:53 -0800


Nice looking boat, Joe.  How about adding a derrick?


On 1/18/07, Joseph Perkel <joeperkel@hotmail.com> wrote:
I've been playing with something a little better than my previous "houseboat 

barge". This is a bit more seaworthy, certainly Bahamas capable by itself.
All marine ply-epoxy, couldn't be any easier..... It sure is nice to
daydream!


http://www.frappr.com/?a=viewphoto&id=269116&pid=3694130&myphotos=1

Joe





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--
Inspiration is for amateurs.
- Chuck Close







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