Re: [PSUBS-MAILIST] [Fwd: take some time and view my web sites...]

[atozed@juno.com]

 Warren, you are sure right about "vapor-ware". 

My two bits for OSS:
Two man, choice of electric (with PWM) outside or hydraulic (with or
without PWM), flat acrylic, flooded lead acid battery, up to 4,000 kg., 4
knots is plenty, a couple scuba tanks for HPA, unscrew a bolt to drop
ballast. For layout design, I prefer Ian to Thijs.
I vote against dive planes (most psubs will want to hover), and fly by
wire (cost and complexity), built in trailer (anybody like theirs?)
I know my sub's 4 foot diameter, 10 foot length is larger that OSS
contemplates, but let's not underestimate the advantages: easy to work
on, only one pressure hull. Skip 3.1 and 3.3.
The spec sheet's 4x1 meters makes me want to trade some of that length
for more beam.
As someone here suggested: lie down in a pipe for a couple hours before
you buy your cylinder.
I know many people start, few dive. So keep it simple enough to get in
the water quickly, then add the rebreather, maybe fly by wire someday.
-Peter Korwin 


On Fri, 3 Dec 2004 19:59:06 -0600 "Adam Lawrence" <adteleka@vzavenue.net>
writes:
> For whatever this is worth, I can do all the calculations and 
> optimize the material for the complete hull. I suppose you guys need to
agree on 
> a few other things first though.
> I vote two man, 500 ft.
> 
> Adam
> 
> ----- Original Message ----- 
> From: "Dave Everett" <deverett@idx.com.au>
> To: <personal_submersibles@psubs.org>
> Sent: Friday, December 03, 2004 6:27 PM
> Subject: Re: [PSUBS-MAILIST] OSS Show your hands!
> 
> 
> > At 10:56 AM 12/4/2004, you wrote:
> >
> >>Dang, I sent this e-mail a few days ago and it
> >>vanished! Here is the gist of it:
> >>
> >>I am concerned that the OSS project may have lost
> >>sight of one initial request, which was a two-man
> >>option. I would like to see a showing of hands on this
> >>subject. How important is a two-man option? How much
> >>money is the option worth?
> >>
> >>If we want a two-man option, will we be able to get it
> >>from the Thjis hull, or will we need to look at Ian's
> >>hull again? If speed is not a concern, we man be able
> >>to simply increase the girth of the Thjis hull, which
> >>would make for a very simple option.
> >
> > Although I was a member many years ago, I only recently rejoined 
> so I can't claim I've been along all throughout this process.
Nevertheless, 
> here are my thoughts.
> >
> > I understand the interest in 2-man, being able to share the 
> adventure. I don't know how it impinges on safety or cost. My guess is
it is 
> much cheaper than building 2 subs. I am concerned by the cramped nature

> though. One sitting one laying down. I thought the  biplane arrangement

> might be better, but with the rear passenger in a slightly higher tower
so 
> both  have a decent forward view.
> >
> > My personal vote is for 1 man, but I'm happy to help out any way I 
> can.
> > Electronics, CAD (I have access to Solidworks, that's what I used 
> to mock up the 1 man sub I posted to Moki)
> >
> > I'm keen on electronic motor controls. As to planes and tanks, it 
> seems mechanical is the safest.
> >
> > Dave Everett
> >
> 
> 
>
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> 
> 
> 
> 
> 
>
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