Thanks for the info
Jim. I am from Downunder. Auckland, New
Zealand. Lots of Coastline but not that
easy for a sub to get to, so I m trying to do a tender with Sub inside for
transport. Needs to be towable at planing speeds.
Don?t want to have to
hire a freighter to get the thing to where I want to explore. I am a
mechanical Engineer, semi retired, so I am finding it all very fascinating and
quite a challenge. When I get all the volumes Ok and the surface
buoyancy acceptable I run out of room internally to put the batteries
etc. One thing I would like to know is does ABS state that the batteries
must be isolated outside. I can understand that being a requirement if
they are being charged when people are on board but with the modern sealed
batteries, monitoring etc . With all the required room inside it ends up
too heavy. Hard to get them under 2 tons. Anyway still
battling. Best regards, Hugh
From:
owner-personal_submersibles@psubs.org
[mailto:owner-personal_submersibles@psubs.org] On Behalf Of Jim Kocourek
Sent: 04 May 2008 22:41
To:
personal_submersibles@psubs.org
Subject: Re: [PSUBS-MAILIST] Dome
window
The window seat is at 180 degrees,
or a circumference OD of 37 15/16 inches which is about 1 1/2 inches tall and
a base that is about 2 3/8 inches wide after machining. I understand the
advantages of a radial seat per stachiw's book however greg does not have
capability to machine this type of seat. Since the dome needs to be annealed
after ANY machining or sanding etc. and I do not have this capability this was
the only reasonable way for me to go. The balance of my pressure hull is
finish welded for the most part at this time. Now that I have the window I
have ordered steel for the seat area and will be shortly ordering the steel to
make the tapered conical section which will transition from the 48 inch OD of
the sub to the approximately 41 1/2 inch OD of the window seat. This section
will be approximately 13 inches long and will further strengthen the seat area
as well as allow final machining to be done before attaching the seat to the
vessel thus eliminating any warping as the final welds will be a full 12 - 13
inches away from the machined seat area.
By the way if you are able to
complete a sub in 16 months, I think you will set a worlds record for
completion time. When I started I felt that it would be reasonable, however I
have found out that it is a bit more complex that I first thought. I probably
spent more time than that just gathering information and arriving at a final
design. Without the help and encouragement from all the great PSUBS people
this perion would be Much longer. As I need to work for a living I cannot work
on this full time. I began serious investigation in the Fall of 05 with the
real action starting shortly after a Jan 06 visit to pennsylvania to see Dan
H's Persistence. Dan and his wife were most gracious and I learned a great
deal in the time spent there.
I am not dissapointed at all that
I strayed from the standard K-Boat design because I have different
expectations, but you need to understand that a boat of your own design
requires MUCH more research than an existing design. In my mind however, that
is a large part of the fun and challenge. I think you need to enjy the
journey. I expect to launch the MacroGuppy some time during the summer of 09.
With the pressure hull almost complete I feel that I am about 40 - 45%
complete.
Best of luck in your adventure. I
hope we get to meet at the convention. By the way, where are you from? You are
certainly welcome here any time if it's not too far. I live in Eastern Wisconsin.
Sent: Sunday,
May 04, 2008 2:49 AM
Subject: RE:
[PSUBS-MAILIST] Dome window
Thanks
Jim,
That is a nice
size. Is that with radial seating or flat face. i.e. is the seat
at 120 degrees or 180 degrees.
I?m still battling
on paper. Desperate to finalise my design so I can start
ordering. The experience of you guys on Psubs is just great but has
caused me to rethink a number of times and modify my
design.
When I am happy
with that I will then do a mock-up as per the ad\vice of Frank. I?ve
got a whole lot of sheets of plywood to cut profiles. Trying to
finalise batteries as well.. Battery
selection and Window selection is the most critical as I see
it.
Would love to visit
the convention and meet with you all. This was going to be a 6 month
project!! Looks more like 16 months.!!!
Again thanks
for the info.
Regards,
Hugh
From:
owner-personal_submersibles@psubs.org
[mailto:owner-personal_submersibles@psubs.org] On Behalf Of Jim Kocourek
Sent: 04 May 2008 12:11
To:
personal_submersibles@psubs.org
Subject: Re: [PSUBS-MAILIST] Dome
window
Of course I cannot tell you
exactly how my dome will perform in the water. My original plan was for a
full hemisphere until I found out the
price!
I wanted a large front window
and the price on the formed sheet is much more reasonable than the full
hemisphere, which has to be poured in a
mold.
My window is close to a 120
deegree dome formed from sheet. It is 2.5 inches thick and is good for 1000
feet of depth.
The real expert is Greg Cottrell
with precision plastics. If you would like his contact info please email me
at kocpnt@tds.net or call me at (920)
772-4271.
----- Original Message -----
Sent:
Saturday, May 03, 2008 5:13 PM
Subject: RE:
[PSUBS-MAILIST] Dome window
Hi
Jim,
What is the
38? is that the diameter of the Sphere or what. What depth is
that good for! Is that a 180 degree flanged
dome?
I am really
trying to get my head around what the best options are. I
wanted to go with a spherical dome but struggling with the
placement.
I am now looking
at flat windows. Also can anyone tell me how much distortion
with a smaller dome for the view. Does it make everything look
further away? Thks, Hugh.
From:
owner-personal_submersibles@psubs.org
[mailto:owner-personal_submersibles@psubs.org] On Behalf Of Jim Kocourek
Sent: 03 May 2008 06:46
To:
personal_submersibles@psubs.org
Subject: [PSUBS-MAILIST] Dome
window
It's a happy day in Wisconsin. I just
received the 38" by 2.5 inch thick dome this afternoon. I think that will
inspire another burst of energy on the
sub.
Greg did a supberb job and I
have long anticipated it's arrival. If he has to change proffessions he
can always design packing boxes as he is quite good at that
also.
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