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Hi Ian,
I enjoyed seeing what you're
proposing. I've also considered a bolt-on endcap
at one end or the other, but with internal flanges as opposed to external. Since
flanged pipe just comes with external flanges, for me it would have to be
the product of a custom machine shop. I'll probably discard the whole idea
in favor of a bolt-on ambient nose cone (fairing), but nothing
says you couldn't make it 1ATM if you wish. The principle advantage
is that you could change out components and equipment located in the nose cone
without disturbing the integrity of the pressure hull. Heck, you could
even be building a separate nose cone (for instance with a
manipulator) when the sub was out at sea. Of course you could do both
(bolt-on endcap and nose cone); they're not mutually exclusive.
It would be nice to have one end of the pressure hull wide
open during the whole assembly process as well as during subsequent maintenance
and modification. I'll be very interested to hear if you
decide the pros or cons of a bolt-on endcap win
out.
Cheers,
Jim
In a message dated 2/10/2011 2:36:48 A.M. Central Standard Time,
irox@ix.netcom.com writes:
Hi,
I while ago I started designing a small 2 person
1-ATM sub. The aim of
the design was to be simple to construct, but
once constructed easy to
reconfigure and play about with. I guess one
goal of this design is to
counter the lack of proven (i.e. K-*50s) used
small subs on the market.
I've code named the project SSP for "Small
Submersible Platform". It's
borrowing heavily from the K subs, but a
slight large diameter pressure
vessel with no ribbing.
There is
still a lot of design work to be done before it's ready for
the
construction phase, but I'd like to get some feedback from
people,
particularly submersible owners, before I invest more effort into
finishing
the design. Missing parts include a clear idea of the MBT
design (I want
to add some "stove pipes" on the bottom, and "top-hat" style
vents on the
top), VBT plumbing/placement, HP air plumbing, electrics, drop
weight
release (I am think K-350, but maybe something better could be done)
and a
bunch of other things (feel free to suggest things for the TODO
list)...
I am trying out the subdb.info site for communicating
information about the
sub.
Main ssp page on subdb.info, not much info
here
yet:
http://www.subdb.info/database/showvessel/index.cgi?ID=1296535743&VN=SSP-001&VT=1
The
design doc and drawings (work in
progress):
http://www.subdb.info/database/vessels/1296535743/vdocs/manuals/design-outline-preview.pdf
Thanks
in advance for any comments and feedback.
Cheers!
Ian.
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