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This sub sounds interesting! Also less expensive and closer to my budget. Keep us posted as it seems ambient coverage is somewhat lacking when it comes to pictures. David Bartsch > Date: Fri, 22 Aug 2008 09:13:10 -0400 > From: carlosd072657@gmail.com > To: personal_submersibles@psubs.org > Subject: Re: [PSUBS-MAILIST] Venting an ambient sub > > Hi Pierre, > My sub will be poplar wood covered in fiberglass. Hull shape is essentially > 6' long by 3' wide, looking somewhat like an overturned canoe, with a 1/4 " > thick 22" diameter Acrylic dome on top, hull ends will be tapered. > Batt. box, seat, > ballast weight, will be suspended just below the hull. Two smaller 7" dia. domes > will be added to provide vision downward. It will be powered by a > single electric > trolling motor employing a Kort nozzle for yaw control. Small diving planes will > provide pitch control. A single 80cu ft scuba tank will provide the > air. A medical > flow meter will bleed in 20 lpm, a gate valve will vent the "cabin" > air to maintain > a constant level of water with an adequate air exchange. There will be > a separate > bulkheaded ballast tank forward, with it's own controls, all of which > will be manual. > Analog instruments will include depth and tank pressure gauge, and a digital > dive computer. I live here in sunny Florida so I don't mind having > approx half my > body immersed in water. I would like to keep the water at waist level, leaving > the rest of me relatively dry. I will be diving the sub in Crystal > River and the various > springs which have very clear water with depths about 20'. Max depth > will be 2 atms. At this stage I'm just building sub components, this > will be a long labor > of love. I think that about does it. What do you think, should my wife takeout > a higher insurance policy on me. : ) > Best Regards, Carlos > > On Fri, Aug 22, 2008 at 6:58 AM, Marie-Andrée et Pierre > <poulin.carrier@videotron.ca> wrote: > > Hello Carlos, > > > > I have a small dry ambient sub and I'll be glad to help you on designing > > yours. > > > > Can you tell us more about your project? > > > > Is it dry or wet sub? what deep you plan to go. how will it be built? wood, > > metal, fiberglass? > > > > What thickness are gonna be the windows, etc... > > > > remember that no sub is truely ambient. at any point the hull must resist to > > a small amount of pressure. > > > > Later. > > > > Pierre "still alive but not diving" Poulin > > > > > > > > > > ----- Original Message ----- From: "Carlos Del Valle" > > <carlosd072657@gmail.com> > > To: <personal_submersibles@psubs.org> > > Sent: Thursday, August 21, 2008 6:06 PM > > Subject: Re: [PSUBS-MAILIST] Venting an ambient sub > > > > > >> Thanks Joe, I'm a newby and I appreciate any advice you guys can give. > >> I'm going to give IVCORP a call and see what type of valve they use in > >> their sportsub. Just to let you know, I'm a Respiratory Therapist and > >> was assigned to a hyperbaric unit for two of my 30 yrs in heath care.. > >> If any of you have any questions about diving medicine or pulmonary > >> physiology related to hyperbaric > >> environments please let me know, I'd like to help,Thanks again Joe > >> Best Regards, Carlos > >> On 8/21/08, Joseph Perkel <joeperkel@hotmail.com> wrote: > >>> > >>> Hi Carlos, > >>> > >>> I did a little ambient research several years ago. As I recall, a gate > >>> valve > >>> fouls rather easily and is slow to operate. A ball valve may dump your > >>> cabin > >>> air much too quickly if heavy handed. > >>> > >>> I cannot recall, what IVC uses on the Sportsub (automatic pressure > >>> regulated > >>> poppet perhaps) but, whatever it is, I suspect that is what you should > >>> consider the best candidate. > >>> > >>> Good luck > >>> > >>> Joe > >>> > >>> > Date: Thu, 21 Aug 2008 10:06:06 -0400 > >>> > From: carlosd072657@gmail.com > >>> > To: personal_submersibles@psubs.org > >>> > Subject: [PSUBS-MAILIST] Venting an ambient sub > >>> > >>> > > >>> > Hi all,I know most of you are into 1 atm subs,but I need a little help > >>> with my > >>> > "want to be sub". It will be similar to ivcorp's solo sub, I calculated > >>> > > my > >>> > minute volume @ 18 liters/min,(700cc tidal volume X 20 > > >>> > breaths/min).That's > >>> > how much I will be bleeding into the sub.To vent that amount can I use > >>> > a simple gate valve to do it? > >>> > I figure I can start the flow, then adjust the gate valve until the > >>> > level of water in > >>> > the sub remains constant.This will ensure that I have a constant > > >>> > exchange > >>> of > >>> > air. I will have a separate ballast tank forward to control buoyancy. > >>> > Trying to build a water/air tight batt. box is another issue. > >>> > I would greatly appreciate any advice you guys can give,Thanks > >>> > Carlos > >>> > > >>> > > >>> > > >>> > > >>> ************************************************************************ > >>> > > >>> ************************************************************************ > >>> > > >>> ************************************************************************ > >>> > The personal submersibles mailing list complies with the US Federal > >>> > CAN-SPAM Act of 2003. 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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 > > ************************************************************************ > > ************************************************************************ > > ************************************************************************ > > > > > > > > ************************************************************************ > ************************************************************************ > ************************************************************************ > The personal submersibles mailing list complies with the US Federal > CAN-SPAM Act of 2003. 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