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Re: [PSUBS-MAILIST] test
Thanks, not trying to be impatient or anything, I just
didn't get my own post sent back to me and wanted to
make sure it was working.
Thanks again.
-David Cutajar
Probably easiest to weld two endcaps together as an
alternative, which has been discussed here many times.
--- Thijs Struijs <thijs-struijs@planet.nl> wrote:
> We have received your question.. Probable a
> difficult one. Maybe you can
> find some more info on this site:
>
> http://www.bakertankhead.com/products.htm
>
> Calculations on spheres are the most simple ones,
> but don't ask how.
>
> Greatings,
>
> Thijs Struijs
>
>
> ----- Original Message -----
> From: "david cutajar"
> <davecutajar@djcengineering.com>
> To: <personal_submersibles@psubs.org>
> Sent: Wednesday, March 29, 2006 8:39 PM
> Subject: Re: [PSUBS-MAILIST] test
>
>
> > Are my posts, posting??
> > I sent a post asking where a good Sphere source
> would
> > be, and ow to correctly calculate it's crush
> depth.
> > -David
> >
> > --- Patrick <pat_man_ta@hotmail.com> wrote:
> >
> > > Juneau's Captain Nemo
> > > Local mechanic builds personal submarine
> > >
> > > BY JULIA O'MALLEY
> > > THE JUNEAU EMPIRE ? 2002
> > > Cal C. Giordano has been building a homemade
> > > submarine in a garage near
> > > Juneau Airport since late June. Recently he took
> the
> > > 20-foot craft, made
> > > from an industrial buoy and a large propane
> tank,
> > > for a test float in Auke
> > > Bay.
> > > "And I came home with a Coast Guard escort,"
> > > Giordano said, chuckling. "I
> > > didn't have my AK (boat registration) numbers
> yet."
> > >
> > > The homemade submarine, christened Arch Duke
> Grand
> > > Excelsior Ruler of the
> > > High Seas, looks like a enormous, wingless,
> > > extra-terrestrial mosquito, with
> > > a propane tank abdomen, a buoy head, and three
> > > oversized port hole eyes. The
> > > outboard motor in the back makes it hum.
> > >
> > > "The design is 100 percent my own," Giordano
> said.
> > > "I'm an artist, I come
> > > from an art background, plus I have a pretty
> good
> > > grasp on physics. (The
> > > design) combines my love of art with basic
> submarine
> > > science."
> > > Giordano is a self-described "ace mechanic
> master
> > > craftsman" who taught
> > > himself welding and boat mechanics. He hasn't
> taken
> > > a science class since he
> > > was in high school in Bethel, where he grew up.
> He
> > > learned most of his
> > > submarine-building physics from experience,
> reading
> > > books and watching the
> > > science shows on cable television.
> > > "The Discovery Channel and the Learning Channel,
> > > that's about it," he said.
> > > Giordano said he has designed and built some
> cannons
> > > and several other
> > > vehicles, including a steam-powered go-cart and
> a
> > > steam rocket. He started
> > > drawing a sub in a notebook in his spare time,
> and
> > > after a while the idea
> > > took off. "I didn't stop designing it until it
> > > looked real neat," he said.
> > >
> > > Then, he decided to build it by his 37th
> birthday on
> > > July 25. He makes a
> > > living as a boat mechanic, so he had to work on
> the
> > > Arch Duke in his off
> > > hours. Sometimes he stayed up all night.
> > > "I decided I would build it on the old military
> > > schedule, go from plans to
> > > finished in one month," he said. "Some mornings
> I
> > > was really tired."
> > > The craft cost about $2,500 to make, and many of
> the
> > > parts were salvaged or
> > > sold to him by local businesses at discounted
> > > prices.
> > > "The only real cash outlay was for the portholes
> and
> > > the buoy," he said.
> > > The buoy, which is 48 inches in diameter, was
> > > ordered from a company in
> > > California. Giordano has turned it into the
> pilot
> > > house. Inside, he mounted
> > > a plastic seat, throttle and steering wheel.
> > > Eventually there will be a
> > > bilge pump, he said. The propane tank in back is
> a
> > > completely separate
> > > chamber that can keep the pilot house afloat if
> the
> > > front compartment were
> > > to take on water, he said.
> > > The run-in with the Coast Guard last week ended
> with
> > > the inspectors warning
> > > him to get a license and proper safety
> equipment.
> > > "They were really nice about it and asked if
> they
> > > could take pictures,"
> > > Giordano said.
> > > Aside from the minor Coast Guard snag, the Arch
> > > Duke's first dip was a
> > > success. The boat was stable and could right
> itself
> > > easily when tipped.
> > > People from the harbor gathered to watch him
> come
> > > in.
> > > "She passed with flying colors," Giordano said,
> > > beaming. "When I came in,
> > > people were saying, "What the heck is that? Hey,
> > > that's cool!' "
> > > Kurt Iverson was walking the Auke Bay dock on
> his
> > > lunch break on Monday when
> > > he saw the Arch Duke moored there.
> > > "My first thought was that it was a submarine
> and
> > > then I saw an outboard
> > > motor on the back and I noticed the wheels on
> the
> > > bottom and I had no idea
> > > what those were for," Iverson said.
> > > The wheels, which Giordano is particularly proud
> of,
> > > are part of the Arch
> > > Duke's built-in trailer. Giordano has been
> hauling
> > > the craft with a
> > > Peterbilt tractor. The wheels, which look much
> like
> > > those on a small
> > > airplane, are filled with water and antifreeze
> to
> > > keep them from disturbing
> > > the buoyancy balance of the craft and to keep
> them
> > > from freezing. Giordano
> > > has built the boat to withstand freezing
> > > temperatures. The bow is designed
> > > to break ice, he said.
> > > The next step is to submerge the Arch Duke.
> Giordano
> > > plans to test it at a
> > > depth of eight feet with the help of an internal
> > > propulsion system,
> > > basically the outboard motor installed inside
> the
> > > propane tank, which he has
> > > yet to construct. His oxygen will be supplied by
> a
> > > snorkle-like tube that
> > > will extend above the surface of the water.
> Another
> > > tube will release
> > > exhaust. Eventually he plans to have an oxygen
> > > supply attached to the pilot
> > > house.
> > > Giordano realizes being inside a small metal
> buoy
> > > under water could be
> > > dangerous, especially if something were to go
> wrong
> > > when he takes the boat
> > > deeper than eight feet, where the water pressure
> is
> > > high. Giordano stressed
> > > that he has built and tested the boat with
> safety in
> > > mind.
> > > "The one thing I try to rely on is safety being
> the
> > > main factor," he said.
> > > "It will go deeper than any depth I will ever
> take
> > > it. I don't want to get
> > > killed, so I will never take it as deep as it
> will
> > > go."
> > > Giordano also wants to make some cosmetic
> upgrades
> > > on the Arch Duke,
> > > including welding a large metal shark fin on the
> > > back, and mounting a
> > > 137-pound brass cannon on the fin "for nostalgia
> and
> > > looks," he said. The
> > > cannon will be removable.
> > > "I can't leave no cannon in the harbor, but it
> will
> > > be real nice to have on
> > > there, and good for holidays," he said.
> > > Julia O'Malley can be reached at
> > > jomalley@juneauempire.com.
> > >
> > >
> > >
> > >
> >
>
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> > >
> >
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