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Thanks Jon. > Date: Mon, 2 Mar 2009 18:02:28 -0500 > From: jonw@psubs.org > To: personal_submersibles@psubs.org > Subject: Re: [PSUBS-MAILIST] Sea Scouts project videos > > > Hi Thierry, > > Thanks for the details on the hull. One other thing you'll need to > consider is the type of steel used as well, since that could affect the > working depth. The hull and viewport calculators are at www.psubs.org. > Go to the main page. Select "Resources & Reference" from the top menu, > then select "Design & Fabrication", then select "Design Tools". On the > left side you'll see a link for "calculators". Click that and then you > can select the individual calculators. > > Someone else will need to check my work with the ABS hull calculator on > the web site. I got 62 foot max depth using ".10" for the four ribbing > (web and flange) dimensions. I know the spreadsheet doesn't like 0 in > these spaces so you have to put something there. I also used "1" for > the usage factor in all calculations. > > Jon > > > > thierry labonté wrote: > > > > Thanks for all your comments, advertising and honesty after viewing > > the videos. A lot of questions have been asked trough those messages. > > Let me try to answer all in a confused order!... > > > > > > > > -The picture of the of the sub in working condition is from around > > 1983... but the last owner used it until the beginning of the 90'. He > > stopped after his co-pilot and friend die...(in a car crash.) The sub > > always worked well before this time. > > > > > > > > -The hull is 15 feet long, 54 inches in diameter and about 6 tons > > according to the last owner. The pressure hull is made, at my guess, > > of ½ inch thick steel without ribbing inside. Allan gave me > > an estimated weight of 8 tons and a crush depth of 228 feet, > > considering a thickness of ½ inch. Jon, where is that hull-condition > > tool on psubs website? > > > > > > > > -The sub had been already carried by...a school bus, a pick-up truck > > and even slowly by a Chrysler without any break under the trailer. > > Naturally, this trailer is not legal anymore and will need to be fixed > > or replaced. > > > > > > > > -We will count on Pierre Poulain support and hundreds of calculations > > to decide if this project is viable or not. We paid 2500$ CAN for the > > sub... which is a cheap price for a Sub101 lesson without wasting our > > time. We are planning to put another 15 000$ on it and probably more. > > I am not confident to finish it before 3 years at least. > > > > > > > > -We use to dive to a maximum depth of 250 ft in lake conditions. Usual > > depth should be around 70-100 feet most of the time. So we need a > > security crush depth of at least 500 feet. > > > > > > > > -The last owner had a kind of floating dock made of 45 gal. plastic > > barrels mounted on a frame, with a crank to launch and lift the > > sub. We are searching for any photos of that. They used that structure > > to flood the sub unmanned at 400 feet when they first buy it without > > any crushing, only a slow leaking of the front port side viewport. > > > > > > > > -The MBT is on the top and there is two droppable weights on each side > > (which pound?) Two battery pods are under the hull. > > > > > > > > We will wait the spring for more investigation and then we could bet > > on the horse or not! > > > > > > > > Thanks for your support and conselling. > > > > > > > > Thierry > > > > > > > ************************************************************************ > ************************************************************************ > ************************************************************************ > 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 53 > Weare, NH 03281 > 603-529-1100 > ************************************************************************ > ************************************************************************ > ************************************************************************ > Donnez l'apparence que vous voulez à votre fenêtre Messenger. Exprimez-vous! |