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Re: [PSUBS-MAILIST] OSS

To: personal_submersibles@psubs.org
Subject: Re: [PSUBS-MAILIST] OSS
From: Doc <doc@bionicdolphin.com>
Date: Thu, 16 Jan 2003 22:20:41 -0800
Organization: TARCO Research
References: <20030116234413.2573.qmail@linuxmail.org> <1042762731.1059.50.camel@localhost.localdomain> <3E276C1E.D1817EB@vcn.com>
Personally, I like a nice rare idea.

Doc

Coalbunny wrote:

> I think there may need to be a separate forum for the OSS thing, not
> because I may not be involved in the OSS, but that I'm working on my own
> sub project and I don't view many ideas as half baked.
> Carl
>
> > "Dale A. Raby" wrote:
> >
> > I think things are gelling rather well... but I won't be putting any
> > more half-baked ideas out there.
> >
> > On Thu, 2003-01-16 at 17:44, Warrend Greenway wrote:
> >
> > > Patience my friend. I have recieved nrealy all the input I need
> > > to organize things. I do things very methodically, please don't
> > > mistake this for stalling. I wanted to have a clear picture of
> > > what I was organizing before I put my foot in the shoe with the
> > > scorpion. Keep you eyes wide open, it will gel within a few days.
> > >
> > > Warren.
> > >
> > > > Warren,
> > > > I think I agree with Carsten in that it is important that you
> > > > started delegating roles in a more assertive way. There are
> > > > too many people inputting ideas to the list and I think at
> > > > this point it is incoherent and confusing. Why dont you
> > > > recruit a few people a sub-committee (oh!, what a funny
> > > > joke!) who can themselves extract ideas from the community,
> > > > discuss them between themselves, then propose a few different
> > > > designs back to the community. Of course, there will have to
> > > > be a few different groups who will have to communicate, both
> > > > between themselves, and with the community.
> > > > I only say this because you seem to be doing the hard part by
> > > > yourself, rather than orchestrating the masses!!
> > > > EM.
> > > >
> > > >
> > > >
> > > >
> > > > ---- Original message ----
> > > > >Date: Fri, 17 Jan 2003 02:07:57 +0800
> > > > >From: "Warrend Greenway" <dub@linuxmail.org>
> > > > >Subject: Re: [PSUBS-MAILIST] OSS multi-ring-size hull
> > > > >To: personal_submersibles@psubs.org
> > > > >
> > > > >Well, you're right about the flooding part. Well, you are
> > > > basically
> > > > >right altogether. I didn't say quite what I meant to. What I
> > > > wanted
> > > > >was the beam, more so then the height. I want the pilot to
> > > > sit side-by-
> > > > >side with one passenger and both have a clear view forward.
> > > > This requires
> > > > >elbo room, but no more then sitting height...But I am
> > > > cooling on the
> > > > >free flooding part, since it could become a structural
> > > > nightmare. In
> > > > >reality I was trying to minimize the volume of the 2 meter
> > > > hull to
> > > > >something more like a 1.2 meter hull, overall...Lemme ponder
> > > > the free-
> > > > >flooding a bit.
> > > > >
> > > > >Warren.
> > > > >
> > > > >>
> > > > >> Warren, putting a solid deck in you sub doesn't change
> > > > >> the displacement at all.  If you where planning to flood
> > > > >> part of your large pressure-hull that would allow you
> > > > >> to reduce the dry weight, but why bother building such
> > > > >> a large hull just to flood half of it...
> > > > >>
> > > > >> Ian.
> > > > >>
> > > > >> On Fri, 17 Jan 2003 01:06:11 +0800
> > > > >> "Warrend Greenway" <dub@linuxmail.org> wrote:
> > > > >>
> > > > >> > Uhhh. That would be too heavy, obviously. Are your
> > > > calculations
> > > > >> > assuming that the 2 meter section would be hollow? I
> > > > mean, I was
> > > > >> > assuming that the 2 meter section had a solid deck in
> > > > it, thereby
> > > > >> > reducing displacement.  Also, I did take my own advise
> > > > and try the
> > > > >> > mock-up idea. 2 meters would be nice, but that sections
> > > > of the hull
> > > > >> > would be just fine at more like 1.25 meters long by 1.8
> > > > meters, with
> > > > >> > a corresponding drop in the size of the smaller section.
> > > > If this
> > > > >> > displacement problem were resolved, which I believe it
> > > > can be, do you
> > > > >> > see any other problems with the general layout? Like I
> > > > said, a deck
> > > > >> > would be used inside to reduce volume, since it is
> > > > really the width
> > > > >> > that is nice, the height can be reduced by .5 meters to
> > > > reduce volume
> > > > >> > and provide ballast.
> > > > >> >
> > > > >> > Warren.
> > > > >> >
> > > > >> > > Warrend Greenway schrieb:
> > > > >> > > >
> > > > >> > > > I would like input on the hull concept I have drawn
> > > > up. The link is:
> > > > >> > > >
> > > > >> > > > www.restorides.com/~dub/
> > > > >> > > >
> > > > >> > > > This is bouncing off the modular idea. The bow is a
> > > > minimal length endcap
> > > > >> > > > in this concept. The main hull with hatch is 1.5
> > > > long by 2 meters in diameter.
> > > > >> > >
> > > > >> > > Just 4,83 ts (10662 pd) (salt water)
> > > > >> > >
> > > > >> > > > The smaller section of hull is 2.5 meters long by 1
> > > > meter in diameter.
> > > > >> > >
> > > > >> > > Easy additional 2,01 ts (4437 pd) (sw)
> > > > >> > >
> > > > >> > > maybe some more 1,5 ts (3311 pd) for the rest.
> > > > >> > >
> > > > >> > > so just a 8,34 ts boat with a maybe (?) 1 ts trailer..
> > > > all together =
> > > > >> > > 20618 pd.
> > > > >> > >
> > > > >> > > 8,34 its the weight of about 5 Kittredge size subs.
> > > > >> > >
> > > > >> > > regards Carsten
> > > > >> > >
> > > > >> > > > The
> > > > >> > > > entire tail section would be a bolt on modular unit.
> > > > Ballast tanks, battery pods,
> > > > >> > > > HPA tanks, etc. would be arranged against the hull
> > > > at the thin section to "flesh"
> > > > >> > > > out the entire hull to approx same diameter. A
> > > > fiberglass fairing would then cover
> > > > >> > > > the aft section. Does this help?
> > > > >> > > >
> > > > >> > > > We need to get a pretty firm grasp of our basic
> > > > pressure hull, including weight
> > > > >> > > > and dimensions before we can finalize the
> > > > preliminary design. The refined hull
> > > > >> > > > design would then be undertaken in parallel with the
> > > > other major units. Note:
> > > > >> > > > I did not add flange seams, I am assuming that they
> > > > are inside. I talked to a
> > > > >> > > > highly respected mechanical engineer at work and he
> > > > had some compelling flange
> > > > >> > > > ideas that necessitated the flange being internal.
> > > > >> > > >
> > > > >> > > > Warren.
> > > > >> > > > --
> > > > >> > > > ______________________________________________
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> > > > >> >
> > > > >> > --
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> > > > >--
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> > > >
> > >
> >
> >
> > Dale A. Raby
> > Editor/Publisher
> > The Green Bay Web
> > http://www.thegreenbayweb.com
>
> --
> "You delight not in a city's seven or seventy wonders, but in an answer
> it gives to a question of yours, or the question it asks you, forcing
> you to answer, like Thebes through the mouth of the Sphinx." -- Kublai
> Khan
References:
- Re: [PSUBS-MAILIST] OSS
  - From: "Warrend Greenway" <dub@linuxmail.org>
- Re: [PSUBS-MAILIST] OSS
  - From: "Dale A. Raby" <publisher@thegreenbayweb.com>
- Re: [PSUBS-MAILIST] OSS
  - From: Coalbunny <coalbunny@vcn.com>
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